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CONTRACT DOCUMENTS Agreement No. C-001021-2019-0193

ESS LPD VERSION-1(2012)

EMIRATES TELECOMMUNICATIONS CORPORATION

(ETISALAT)

ETISALAT STANDARDS & SPECIFICATIONS FOR LINE PLANT NETWORK DEVELOPMENT (ESS LPD) FOR UNDERGROUND DUCT & CABLE LAYING AND ASSOCIATED WORKS

ESS LPD VERSION-1(2012)

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INDEX PARA

Section

DESCRIPTION

PART A

CONDITIONS APPLICABLE FOR CIVIL & CABLING WORK

Section 1

STANDARD CONDITIONS.

1-38

Section II

MEASUREMENT AND PAYMENT CONDITIONS.

46-99

PART B

CONDITIONS APPLICABLE FOR CIVIL WORK

Section-III

DEFINITION

101-114

Section-IV

QUALITY OF MATERIALS

201-219

Section-V

EXCAVATION

301-319

Section-VI

DUCT AND CABLE LAYING

401-486

Section-VII

GENERAL.

401-419

PVC DUCT 54D.

426-440

PVC DUCT 56.

441-447

HIGH DENSITY POLYETHYLENE (HDPE) DUCT POLYETHYLENE CABLE LAYING.

448-449

SLEWING AND/OR LOWERING OR RAISING OF DUCT.

475-486

JOINTING CHAMBER.

468-474

501-541

GENERAL

501-538

JOINT BOX NO. 23

539

JOINT MARKERS AND MARKER POSTS.

541

Section-VIII

CABINET CROSS CONNECTION

542-547

Section-IX

FILLING-IN AND RESTORATION OF PAVINGS

601-605

Section-X

SAFETY PRECAUTIONS

701-704

Section-XI

ARTICLES REQUIRED FOR THE SCOPE OF WORK.

801

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SECTION 1 Para

STANDARD CONDITIONS Title

1

Definitions

2

Standard Of Work

3

Deviations

4

Added And Omitted Work

5

Local Consents

6

Safety Precaution

7

Compliance With By-Laws And Regulations

8

Cartage And Demurrage

9

Care Of Stores

10

Materials Provided By The Contractor

11

Tools, Plant & Appliances

12

Storage Accommodation.

13

Water And Fuel; Pumping And Baling

14

Office, Diary, Etc.

15

Return To Site And Reinstatements

16

Contractor Or Agent On Work

17

Dismissal Of Contractor's Servants

18

Sub-Letting

19

(Deleted)

20

Access To Premises

21

Existing Plant Or Other Obstructions

22

Suspension Of Work

23

Removal Of Articles, Materials, Rubbish

24

Imperfect Work

25

Re-Examination Of Condemned Work

26

Arbitration

27

Non-Fulfillment Of Contract

28 29 30

Termination Of Contract Bills Payments

31

Patents, Etc.

32

Corrupt Gifts And Payments Of Commissions

33

Services Rendered By ETISALAT

34

Recovery Of Sums Due

35

Use Of Documents, Information, Etc.

36

Injury To Persons: Loss Of Property

37

Fair Wages, UAE Labor Laws, Visas, Etc.

38

Time Work

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Section II Para

MEASUREMENT AND PAYMENT CONDITIONS Title

46

Conditions Affecting The Execution Of The Work

47

Work To Be Carried Out

48

Deviations

49

Added And Omitted Work

50

Application Of Rates

51

Deduced Rates: Special Rates

52

Night And Friday Work Or Holiday Work

53

Time Work

54

Cartage And Demurrage

55

Sump Draining

56

De-Watering

57

Bunds And Discharge Hoses

58

Existing Plant Or Other Obstructions

59

Surplus Excavated Material

60

Covering In

61

Measurement-General Provisions

62

Application of Rates.

62.1

Rates For Excavation.

62.2

Filling-In And Ramming.

62.3

Permanent Reinstatement And Making Good.

63

Use Of "Additives" Or” Improvers"

64

(Deleted)

65

Abandoned Work

66

Pilot Holes; Trial Excavations

67

Rock

68

Timbering Of Excavations

69

Timber Left In

70

Cost Of Precautions Following An Objection To Route

71

Earth Free From Stones

72

Independent Sumps, Rubble Bottoms, Etc.

73

Test Cubes

74

(Deleted)

75

Duct Laying & Cable Laying, General

75.1

Abutting Pavings.

75.2

Kerb Concrete Backing.

75.3

Layered Depth Rates.

75.4

Rocky Soil.

75.5

Use Of Mechanical Excavators.

76

Duct Laying.

76.1

Rates Inclusive To Standard Depth.

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Non-Standard Depth.

76.3

Variation In Duct Grouping.

76.4

Duct In Open Trench.

76.4.1

Duct Through Service Pipe.

76.5

Cutting And Bending Of Ducts.

76.6

Rodding And Roping And/Or Cleaning And Testing.

76.7

Side Shaft.

76.8

Measurement Item Excluded.

76.9

Slewing.

76.10

Testing After Slewing.

76.11

Marking Ends Of Duct Lines.

76.12

(Deleted)

76.13

(Deleted)

76.14

Cutting And Removing Of Existing Duct.

77

Polyethylene Cable Laying.

77.1

Rates.

77.2

Measurement.

77.3

Drawn Through Or Into Duct.

77.4

Laid In Open Trench.

77.5

Earth Free From Stone.

77.6

Testing Of Cables

77.6.1

Testing Before Installations.

77.6.2

Testing After Installations.

78

Foundations.

78.1

General.

78.2

Concrete Foundations To Paving.

78.3

Foundation Portion Of Concrete Pavings.

78.4

Concrete Foundation In Part Of Trench.

78.5

Concrete Other Than Paving Foundations.

78.6

Foundations Other Than Concrete.

79

Tunneling.

79.1

When Rates Not Applicable.

79.2

Measurement Of Tunnels.

79.3 80 81.

Rates For Tunneling. (Deleted) Jointing Chambers, General.

81.1

Rates

81.2

Variation In Jointing Chamber Constructions.

81.3

Demolition – Recovery Of Jointing Chambers

82

Manhole.

82.1

Measurement.

82.2

Frames And Covers.

82.3

Shaft Entrance.

ESS LPD VERSION-1(2012)

Title

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Para 82.4

Title

Pumping Payment.

83

Joint Boxes.

83.1

Concrete Surrounds.

83.2

(Deleted)

83.3

Joint Box No 23.

84

Miscellaneous.

84.1

(Deleted)

84.2

(Deleted)

84.3

Demolishing Concrete Or Block Work.

84.5

Protection Post.

84.6

Marker Post.

84.7

Cabinet Cross Connection. Copper Cabinet/Fo Cabinet

84.8

Renewing and /Or Raising Frames And Covers.

86

Reinstatement By Authority

87

Basis Of Rates.

88

(Deleted)

89

Agreement Of Measurement

90

Margins

91

Flags Or Cultivated Grass

92

Broken Flanges Etc.

92.1

Before Disturbance.

92.2

During Operations.

92.3

Cartage.

93

Strengthening Materials

93.1

Excluded From Other Rates.

93.2

Included In Other Rates.

93.3

Use Of On-Site Material.

93.4

Strengthening Materials Rates.

93.5

Credits.

94

Compaction Tests

95-98

(Deleted)

99

Pumping Conditions For Payment In Manholes.

101

Abandoned Work

Part-III

DEFINITIONS.

102

Damp Mix (Concrete).

103

Duct

104

Earth Free From Stones

105

Jointing Chamber

106

Pilot Hole

107

Rock

108

Shaft

109

Side Shaft

110

Shuttering

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ESS LPD VERSION-1(2012) Para 111

Title

112

Tunnel

113

Way

114

Pavings

Section-IV

QUALITY OF MATERIALS

201

Specifications

202

Concrete

203

Quality

204

Mixing

205

Water

206

Placing And Cleanliness

207

Cement

208

Additives

209

(Deleted)

210

Samples

211

(Deleted)

212

Sand (Fine Aggregate)

213

Sand (Coarse Aggregate)

214

Size Of Aggregate

215

Cement Mortar

216

Iron And Steel Work

217

Hardcore

218

Stabilized Backfill

219

Water Proofing

301

General

Section-V

Trial Excavation

EXCAVATION

302

Sub-Soil

303

Protection Of Excavated Material

304

Timbering, etc.

305

Objection

306

Mechanical Excavators

307

Silencers

308

Protection Paving

309

Pilot Holes & Trial Excavations

310

Side Shafts

311

Supports

312

Width Of Trench

313

Standard Depth

314

Change Of Level

315

Trenches For Polyethylene Cable

316

Tunneling

317

Ground Water Lowering

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ESS LPD VERSION-1(2012) Para 318

Title

319

Bunds

Section-VI

DUCT AND CABLE LAYING

401

Drawings

402

Line Of Duct

403

Duct Formations

404

Laying Of Duct

405

Duct Leading Into Etc Buildings

406

Clearance From Other Services

407

Clearance From Electricity Supplies

408

Variation Of Duct

409

(Deleted)

410

Duct In Tunnel

411

Cutting And Bending Of Duct

412

Covering Of Duct

413

Rocky Soils

414

Cleaning And Testing

415

Deferred Jointing Chamber

416

Plugs

417

Draw Rope

418

Alignment Test For Disturbed Duct

419 426

Scrap Materials. Duct No. 54D (PVC) General.

427

Trench (Duct 54D.).

428

Formations (Duct 54D.).

429

Laying And Jointing (Duct 54D.).

430

Alternative Method Of Jointing And Laying (Duct 54D.).

431

Bends (Duct 54d.).

432

Variations (Duct 54D.).

433

Back Fill (Duct 54D.).

434

Cleaning and Testing (Duct 54D.).

435

Leads-In General.

436

Duct Seal.

437

Lead-In Track

439

Caulking.

440 441

Sealing Of Conduits And Pipes Duct No. 56 (PVC) General.

442

Trench For Duct 56.

443

Laying And Jointing (Duct 56.).

444

Bends (Duct 56.).

445

Variations (Duct 56.).

446

Back Fill (Duct 56.).

447

Cleaning and Testing (Duct 56.).

ESS LPD VERSION-1(2012)

Blasting Of Rock

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ESS LPD VERSION-1(2012) Para 448-449

Title

468

Polyethylene Cable.

469

Mole Ploughing

470

Crossings

471

Terminating Points

472

Joint Marker

473

Capping, Steel Or PVC

474

Cutting And Sealing.

High density polyethylene (HDPE) duct

SLEWING AND/OR LOWERING OR RAISING OF DUCT 475

Excavation

476

Strong Back.

477

Suspension

478

Slewing Only

479

Movement

480

Trench Bottom

482

Irregularities

484

Pulled Joints

485

Inspection

486

Testing

Section-VII

JOINTING CHAMBER

501

General

502

Types Of Jointing Chamber

503

Drawings

504

Variation

505

Clearance Of Ducts

506

Protection Of Cables And Associated Equipment

507

Duct Entries Into Existing Structures

508

Duct Entries

509

Jointing Chamber Fittings

510

Iron And Steelwork

511

Recovered Materials

512

Sumps

513

Concreting

514

Joints In Concrete

515

Concrete Quality And Finish

516

Compaction And Tamping Of Concrete

519

Wet Situations

520

Shuttering

521

Removal Of Shuttering

534

Frames And Covers, Carriageway No. 1,2,3, Double Triangular Type. Installation and Renewal And/or Changing Level using Cement or Resin mortar or Resin Bedding. Concrete Surrounding.

536 538

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ESS LPD VERSION-1(2012) Para 539 540

Title

541

Joint Markers And Marker Posts

Section-VIII

Joint Boxes, No. 23 (Deleted)

CABINET CROSS CONNECTION/ FDH (FIBER DISTRIBUTION HUB)

542

Excavation For Bases

543

Provision Of Base.

544

Erection Of Cabinet.

545

(Deleted)

546

Key.

547

FO Cabinets Base, CATV Node, ONU Base, Kiosk Base.

601

General

Section-IX

FILLING-IN AND RESTORATION OF PAVINGS

602

Ramming

603

Compaction Test

604

Sealing

605

Obligations

701

General

Section-X

SAFETY PRECAUTIONS

702

PVC Cement and Methylate Spirits

703

Resin Pack No.6a Safety

704

Section-XI 801

ESS LPD VERSION-1(2012)

ARTICLES REQUIRED FOR THE SCOPE OF WORK. ARTICLES REQUIRED FOR THE SCOPE OF WORK.

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STANDARD CONDITIONS 1.

Definitions.

1.1.

"The Contract" means the documents forming the tender and acceptance thereof together with the documents referred to therein including these Conditions, the Specification, the Schedule of Rates, Reinstatement Charges and Conditions, the Schedule of Work and the drawings and all these documents taken together shall be deemed to form one contract and shall be complementary to one another. In the contract the following expressions shall, unless the context otherwise requires, have the meanings hereby respectively assigned to them.

1.2.1

"the work" means all the work to be carried out in pursuance of the Contract, including any work carried out under the provisions of Condition 4 thereof.

1.2.2

"the Contractor" means the individual or firm or company undertaking the work and shall include the legal personal representatives of such individual or of the persons comprising such firm and the permitted assigns of such individual or firm or company.

1.2.3

"the Engineer" means the person who in the Contract is stated to be the Engineer, or the representative of such person.

1.2.4

"the Site Engineer" means the officer for the time being appointed by the Etisalat/ higher official for the purpose of superintending the work; or where the context permits, the representative of such officer.

1.2.7

“Authority" means street authority, land/building owner or any other authorizing body who maintain or own carriage ways, verges, thoroughfares, passages or private land.

1.2.8

"Permanent reinstatement and making good" means restoring excavated surfaces in accordance with conditions imposed by the authority.

1.2.9

"Interim restoration" means filling-in and ramming excavations up to surface level, including sealing coat, without providing permanent reinstatements and making good, as instructed by the Authority.

1.2.10 The headings of these Conditions shall not affect the interpretation thereof. 1.2.11 Reference to any enactment, order, regulation or other similar instrument shall be construed as a reference to the enactment, order, regulation or instrument as amended by any subsequent enactment, order, regulation or instrument. 1.2.12 "Deviation" includes: any alteration from the footway to the carriage way (and viceversa), or from one description of paving to another, or from one street to another; any alteration in the depth of work, or in the detail of the construction of jointing chamber; any other work required for the good and sufficient execution of the work; but it does not include added or omitted work. ESS LPD VERSION-1(2012)

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1.2.13 "Sump Draining" means lowering ground water by use of suction pumps, which draw water from drainage sumps. Sump draining is otherwise known as Normal Pumping or simply pumping. 1.2.14 "Dewatering" means lowering ground water by use of riser pipes with fixed filters through which water is drawn, such pipes being first sunk into the ground near the working area then suction pumps attached to them. 1.2.15 "Bund" means a temporary embankment, which is constructed for the purpose of retaining a volume of water. 1.3

Any notice or other communications whatsoever which ETISALAT is required or authorized by the Contract to give or make to the Contractor shall, without prejudice to any other method of giving or making it, be sufficiently given or made if it is sent by post addressed to the Contractor by name at the last known place of abode or business of the Contractor and if that letter is not returned undelivered that notice or communication shall be deemed for the purpose of the Contract to have been given or made at the time at which that letter would in the ordinary course of post be delivered.

2.

Standard of work. The Contractor shall execute the Contract in the most suitable and workmanlike manner and to the entire satisfaction of the ETISALAT Engineer. The Contractor shall be responsible for the correctness of the work throughout the whole term of the Contract.

3.

Deviations. The Site Engineer may from time to time (with or without the provision of or modification to a drawing or drawings) instruct the Contractor to execute a deviation from the Contract and such deviation shall be deemed to form part of the Contract. The Contractor shall not, however, make any deviation without the authority of the Site Engineer and an election by the Contractor to tunnel for a distance in excess of 1.8 meter shall be subject to the agreement in writing of the Site Engineer.

4.

Added and Omitted Work. ETISALAT may instruct the Contractor either to omit any part of the work from the issued work order/Contract or to undertake work in addition to that detailed in the Schedule of Work as per requirement. The Contractor shall not omit any portion of the work or put in hand any additional work without authority in writing from ETISALAT. ETISALAT reserves the right to carry out by means of ETISALAT workmen or other agents any work in connection with the work which forms the subject of the Contract where such work is not provided for in the Schedule of Rates.

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5.

Local consents. Contractor will obtain all provisional consent/way leave from the authorities and will furnish along with proposed design plan for the execution of the work, Prior to and during commencement of the works” necessary NOC/ permissions and assistance from the authorities required to execute the works” shall be obtained, renewed/revalidated by the contractor. Such permissions shall include Traffic clearances for road cutting, Tile lifting, Asphalt cutting, Directional drilling/Thrust boring, Grass cutting and other surfaces not covered here or diversions, oil field work permits, Defense Department clearance, other utility clearance, permissions for constructing Bunds, obtaining lines and levels from concerned authorities etc All such permission from Municipality, NOC from other services departments etc. mentioned above to be obtained by the contractor within two (02) calendar weeks on receipt of NOI(Notice of Intent) documents (soft copy or hard copy) advice from ETISALAT. Contractor is responsible for preparing set of drawings/documents for submission to various departments/authorities. Contractor shall comply with all requirements of the local authorities including any security deposits, bank guarantees, or payment of fees. Payment made by the contractor to the authorities for laboratory/testing for obtaining permissions for asphalt, Tiles/Grass cuttings (at permission obtaining stage) shall be reimbursed on actual cost basis. All other Payments made by the contractor to the authorities in the execution

stage towards Compaction test, additional/repeated/ failed tests etc , obtaining NOC’s, Parking Fee , etc is considered as inclusive in the schedule of rates. The contractor shall clear ETISALAT corridor from temporary site obstructions. Necessary coordination, liaison and follow-up shall be done by the contractor. Accuracy of collection, site setting and transfer of Lines, levels and required equipment / staff shall be the responsibility of the contractor. Contractor shall obtain the required certificate for the correctness of the site setting out as required by the authorities. 6.

Safety Precautions.

6.1

In connection with the work and at his own cost except as is provided for in Para. 70 the Contractor shall be responsible for the implementation, observance and performance himself and his sub-contractors and agents and his or their workpeople and any other person and of all property as may be otherwise necessary or desirable and whether imposed on himself or ETISALAT.

6.2

The Contractor shall comply also with such safety instructions as may be given by Site Engineer and shall comply with all Etisalat, local and Federal bye laws.

6.3

Without prejudice to the generality of the foregoing provisions in this condition, the precautions to be taken by the Contractor shall include provision and maintenance of all

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lights, guards, fencing and watching when and where necessary or required by the Site Engineer or by any competent statutory or other authority to protect the safety of the general public, ETISALAT plants and other utilities. 6.4

Any information or instruction which may be provided or given by any ETISALAT servant shall in no way relieve the Contractor of his responsibilities under Condition 6.1 or his liabilities under Condition 36 thereof.

6.5

The Contractor shall have posted at the site office the name and address of a responsible representative who can be contacted in an emergency.

6.6.

The contractor shall provide a sign board at each work site indicating the client’s name, contractor’s name, address and contact telephone numbers, project reference.

7.

Compliance with By-laws and Regulations. The Contractor shall comply with all by-laws of any authority in the area in which the work is to be carried out whether in respect of any accommodation which may be provided by the Contractor for the workmen employed on the Contract, or any other matter to which the bylaws apply, and, unless otherwise directed by ETISALAT, conform to all regulations of any highway authority having the control of the streets concerned, and shall give all such notices as are required by law to be given.

8.

Cartage and Demurrage.

8.1

The Contractor shall cart all materials, tools and plant which he has to provide, and shall on completion of the work remove all such materials, tools and plant as may be surplus.

8.2

The Contractor shall, as and when required by the Site Engineer, after issue of the notice to commence the work, collect from wharfs, docks, goods yards, or equally accessible places all articles provided by ETISALAT, and shall deliver such articles on the work, and shall on completion of the work collect all such articles provided by ETISALAT, as may be left over, or any stores recovered during the course of the work and deliver them at such places as the Site Engineer may direct. The Contractor shall supply sufficient labour and/or mechanical aids, to perform safely all such loading, unloading and other services as may be necessary in connection therewith. The Contractor shall repay to ETISALAT the amount of any demurrage, handling, storage, or other charges which ETISALAT may incur in consequence of any delay in collecting on the part of the Contractor.

9.

Care of Stores. The Contractor shall be responsible for the safety of all materials and tools deposited with him by ETISALAT for incorporation in the work, and shall be liable for any loss of, or damage to, such materials and tools whilst they are in his custody. Also, the Contractor shall keep readily available such records of the materials so deposited as will enable the Site Engineer from time to time to check the quantities used and in hand against those delivered to the Contractor's charge.

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The materials (e.g. ducts, draw rope, warning tapes etc) may not in any circumstances be employed for guarding openings or any obstructions. 10.

Materials Provided by The Contractor. With the exception of the any articles supplied by ETISALAT, the Contractor shall arrange whatsoever materials may be necessary and required for the scope of work, and shall, if so required, furnish the name and address of the maker of any article he proposes to use, and obtain at his own expense for the Engineer, or any officer who may be deputed by him for the purpose, all facilities for examining and testing such article at the maker's works before dispatch, and shall also furnish all facilities for the Site Engineer to examine and test materials on the ground if he desires to do so.

11.

Tools, Plant & Appliances. The Contractor shall provide, all requisite tools, plant, appliances and equipment like surveying equipment (GPS, Total Station, Theodolite, Dumpy level) etc or as advised by the Site Engineer or/authorities.

12.

Storage Accommodation. The Contractor shall provide, on or at a convenient distance from the work, suitable storage accommodation for all materials for incorporation in the work, including such as are provided by ETISALAT.

13.

Water and Fuel; Pumping and Baling. The Contractor shall furnish all necessary water and fuel. He shall undertake all requisite pumping and baling.

14.

Office, Diary, etc. If the duration of actual work is more than one week the Contractor shall, provide on or near the work a suitable and convenient office for the use of the Site Engineer. As a minimum acceptable standard the office shall:-

14.1

Be soundly constructed and transportable Porta-Cabin or a suitable room within the work area.

14.2

Have a floor area not less than 9 sq. m and a height not less than 2.5 m to eaves.

14.3

Be weatherproof and capable of being ventilated. Permanent ventilation at a low level shall be installed to prevent an accumulation of gas should there be a gas leak from the equipment provided under Condition 14.6. The ventilator(s) shall be designed to prevent them being rendered ineffective by office furniture, etc., for example, by fitting suitable shaped wire grills.

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14.4

Have the interior painted white or cream to give the maximum light reflection.

14.5

Be capable of being secured against unauthorized entry.

14.6

Be provided with lighting equipment. All flexible hoses connecting gas appliances and gas cylinders shall be securely attached by means of a "Jubilee" clip or similar device.

14.7

Be provided with a desk, or bench, at least 1.37m long and 610mm wide, and under this at least one drawer, capable of being locked, of suitable size to hold diaries and other contract documents. The desk, or bench, should preferably sloped from back to front, which should then be about 1.07m from the floor of the office.

14.8

Have a window (or windows) in such a position as to adequately light the working area of the desk or bench.

14.9

Be provided with suitable chairs or stools for the desk or bench.

14.10

Be provided with suitable hand washing utensils for the use of the Site Engineer and agent.

14.11

Be provided with air conditioning.

14.12

If the Site Engineer considers one office inadequate additional office shall be provided. The office shall be reserved for clerical work for Site Engineer in connection with the Contract and shall be maintained in a clean condition.

14.14

Availability of Documents at Work Site: The Contractor shall keep on the work site a copy of the Specification, relevant approvals, project drawings, and way leaves etc to which at all times during working hours. The Site Engineer shall have access. The terms of this condition shall apply to the whole of the work including the Contractor's permanent reinstatement. The Contractor shall keep a record of details of all Paving disturbed during the course of the work where the permanent reinstatement and making good is to be carried out by the respective authorities. A copy of this record shall be made available to ETISALAT if requested.

15.

Return to Site and Reinstatements. In the event of any break in continuity of the work the Contractor must give seven days advance notice to the Site Engineer of his intention to return to the site to perform further work under the Contract and must not commence any such work without the Site Engineer's agreement that he may do so. The foregoing shall also apply in all cases of return to site to carry out permanent reinstatement and making good. Agreements to alter the basis of working regarding interim reinstatement, or permanent reinstatement and making good from that specified in the Contract shall not be made with the Authority without the prior approval in writing of

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ETISALAT. 16.

Contractor or Agent on Work. The Contractor or his accredited Agent, who shall be fully qualified to represent him, shall be always on the work during its progress. The Contractor's agent amongst other things should be capable of and empowered by the Contractor to carry out the following duties:-

16.1

To mobilize or discharge all necessary foremen or workmen

16.2

To provide by hire or otherwise all necessary tools, safety equipment and mechanical aids other than items provided by Etisalat.

16.3

To purchase all necessary materials.

16.4

To give instruction to foremen or workmen on the principles and practice of ETISALAT underground duct and jointing chamber construction.

16.5

To take any necessary action to ensure the safety of workmen or property and public.

16.6

To agree with the Site Engineer day to day joint measurements of the work carried out and record these in a legible manner.

16.7

To organize the work so as to meet the progress on scheduled of work and day to day priorities as directed by the Site Engineer.

17.

Dismissal of Contractor's Servants. The Site Engineer shall have power to require the Contractor, subject to compliance with any statutory requirements, immediately to cease to employ in connection with the Contract and to replace any foreman or person below that grade whose continued employment thereon is in the opinion of Site Engineer undesirable. Etisalat shall have power to require the Contractor immediately to cease to employ in connection with the Contract and to replace any person above the grade of foreman, including the Contractor's agent, whose continued employment in connection therewith is in the opinion of Etisalat undesirable. Any decision of Etisalat or the Site Engineer as the case may be under this condition shall be final and conclusive.

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18.

Sub-letting. The Contractor shall not transfer or assign directly or indirectly (other than may be customary in the trade concerned, when particulars shall be furnished in the Tender/ Contract) to any person or persons whatsoever, the whole or any portion of this Contract except with the written permission of Etisalat. The Selected Contractor/s shall not engage ETISALAT other Contractor/s as Sub contractor and or shall not work as Sub contractor with ETISALAT other Contractor/s for the similar scope of work/Contract.

20.

Access to Premises. The Contractor shall provide any necessary means of temporary access to any premises, the entrance to which is obstructed or interfered with by or in the course of the execution of the work.

21.

Existing Plant or Other Obstructions. If conditions necessitate the adoption of such a course, the Contractor shall remove, divert, or carry by means of brick or concrete piers, any existing water main, gas main, electric light main, hydraulic main, drain, sewer, temporary de-watering pipes, and the like as well as make good any vault, cellar, subway or septic tank disturbed. Such work will be inclusive in the schedule of rate as indicated in Condition 58.

22.

Suspension of Work ETISALAT shall recognize the work under suspension of work under the following circumstances.

22.1

If the work or any portion thereof should be suspended for a period exceeding two normal working days:-

22.1.1

By the order of the site Engineer for ETISALAT and, without prejudice to the generality of the foregoing, if the Contractor be prevented from or delayed in proceeding with the work by ETISALAT or some other contractor employed by ETISALAT, or

22.1.2

With the concurrence of the Engineer or the Site Engineer for ETISALAT and without prejudice to the generality of the foregoing, if the Contractor be prevented from or delayed in proceeding with the work by ETISALAT or some other contractor employed by ETISALAT, or

22.1.3 Pursuant to the order or request of any in whose order or request ETISALAT is constrained to or does acquiesce; provided that such suspension is not necessary in order to avoid risk of damage from inclement weather or other like causes and is not due to any neglect or default of the Contractor.

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23.

Removal of Articles, Materials, Rubbish. The Contractor shall remove all articles and materials requiring removal, and all rubbish, earth, dirt or filth and so leave the site clean as the work proceeds. He shall provide all necessary chute or tips.

24.

Imperfect Work.

24.1

The Site Engineer may condemn any work which may be damaged by water, subsidence, or any other cause, or which in his opinion has not been performed in accordance with the terms of the Contract, and the Contractor shall (subject as provided in Condition 25 hereof) at his own proper cost and charge, rectify and perform or reconstruct the same wholly or partially as may be required. The Contractor shall (subject as aforesaid) also take back any materials or articles which may be considered by the Site Engineer to be unsound or otherwise not in conformity with the Specification, and he shall not again attempt to use on any work of ETISALAT any such materials. All materials or articles which are condemned shall be removed from the work within 24 hours or, if reexamination is required in accordance with Condition 25 hereof, within 24 hours of final condemnation.

24.2

If the Contractor shall neglect to rectify, reform or reconstruct any work as aforesaid within a period to be specified by the Site Engineer, or shall omit to take back any materials or articles which may be considered by the Site Engineer, to be unsound or otherwise not in conformity with the Specification, or shall fail to provide immediately suitable materials or articles in lieu of those condemned, then the Contractor shall at once cause the work to be stopped if so instructed by the Site Engineer, and ETISALAT shall be at liberty forthwith to employ some other person or persons to perform the work, and to cause the required materials or articles to be purchased.

24.3

Any defect in, arising out of, or consequent on the execution of the work performed under this Contract; or due to any act, neglect, omission or failure on the part of the Contractor that shall appear within twelve months after the date of completion of the work, shall be at once made good by the Contractor at his own expense, notwithstanding any payment that may have been made to the Contractor in respect of the work; and in default of such making good by the Contractor, may cause such defect to be remedied by some other person at the expense of the Contractor.

24.4

For the purpose of the Conditions the work shall not be deemed to have been completed until the Contractor has performed and fulfilled the obligations imposed on ETISALATby the Authority including site clearance. Without any exemption, the contractor shall submit the approval of the reinstatement work from the Authorities, test cubes results, and compaction test results etc. before clearing the final diary of works.

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25.

Re-examination of Condemned Work. If any work performed or article or material provided by the Contractor be condemned as aforesaid by the ETISALAT during the progress of the work and the Contractor considers himself aggrieved, a re-examination of such work or article or material by an independent person, to be mutually agreed upon by ETISALAT and the Contractor, shall take place if the Contractor shall, by notice in writing delivered to the Engineer within three days of such condemnation, so required and until such person gives his decision the powers conferred on the Site Engineer and ETISALAT by Condition 24.2 shall not be exercised. The decision of such person shall be final and the party against whom the decision is given shall pay the entire expenses of the re-examination.

26.

Arbitration. All disputes, differences or questions between the parties to the Contract with respect to any matter or thing arising out of or relating to Condition 17 or provided for in Conditions 24 and 25 hereof or as to which the decision of ETISALAT or of any other person is by the Contract expressed to be final and conclusive shall after written notice by either party to the Contract to the other party, be referred to a single arbitrator agreed for the purpose. Unless the parties otherwise agree, such reference shall not take place until after the completion, alleged completion or abandonment of the work or the determination of the Contract.

27.

Non-fulfillment of Contract.

27.1

Performance of work. The work shall be commenced by the contractor within such period after the receipt of instructions in writing from ETISALAT to proceed as shall be specified, and at such point or points, and in such positions as may be decided by the Site Engineer.

27.2

Time shall be of the essence of the Contract and the work shall (subject as hereinafter provided) be completed within a period specified by ETISALAT.

27.4

If the execution of the work shall without any default or negligence on the part of the Contractor be delayed by reason of any of the following causes, that is to say (a) by any of the causes mentioned in Condition 22 hereof: (b) by reason of any act or default on the part of ETISALAT or of any authority; (c) by strikes or lock-outs of workmen employed on the work or in the preparation manufacture or transport of materials intended for the work; (d) by any other cause which the Contractor could not have prevented and for which he was not responsible the Contractor shall be allowed such extension of time for completion as the Site Engineer shall certify in writing ought to be allowed on account thereof.

27.5

The decision of the Site Engineer as to the date on which the work has been actually completed and on the question whether and to what extent the execution of the work has been delayed owing to any of the causes referred to in the preceding clause hereof and whether the Contractor could have prevented or ought to be held responsible for any occurrence by which the work may be delayed and as to the extension of time to be allowed to the contractor in respect of any such delay shall be final and conclusive.

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27.6

The right of ETISALAT to claim a penalty in accordance with Condition 27.7 for delay in completion shall not be waived by any extension of time granted hereunder, or by any concession granted or certificate given or payment made to the contractor, or by any act or default of ETISALAT its servants or agents, or by any order for any extra work, or for any addition to, alteration or modification of, or deduction from the work detailed in the Schedule of Work.

27.7

If the work shall not be completed on or before the expiration of the period specified in the contract, or in the case of any extension being granted under the provisions herein before contained, on or before the extended date of completion then and in such case the Contractor shall pay ETISALAT a sum calculated in accordance with the details set out in the contract for the time which shall elapse from the expiration of such period or such extended date for completion, as the case may be, to the actual date of completion. The penalty, if invoked by ETISALAT, shall not exceed 5% of total value as listed in Schedule of Quantities for each complete week of delay to a maximum of 15%.

27.8

The above forgoing does not exempt the contractor any way to delay the commencement /completion of the work in other areas free from obstructions.

28.

Termination of Contract. ETISALAT may without prejudice to its rights against the Contractor in respect of any delay or inferior workmanship or otherwise, or to any claims for damage in respect of any breaches of the Contract and whether the period for completion has or has not expired, by notice in writing absolutely termination the Contract in any of the following cases, additional to those mentioned in Condition 32 hereof:-

28.1

If the Contractor, having been given by the Engineer a notice in writing to rectify, reconstruct or replace any defective work or a notice in writing that the work is being performed in an inefficient or otherwise improper manner, shall omit to comply with the requirements of such notice for a period of seven days thereafter or if the Contractor shall fail to commence work on the site within fourteen days after the expiration of the period specified in the Contract or any agreed extension thereof, or if in any week the Contractor shall not complete the number of linear meters or route or the quantity or work specified the execution of the work so that either in the judgments of the Engineer he will be unable to secure the completion of the work within the period specified for completion or any agreed extension thereof or he has already failed to complete the work on the expiration of such period; or

28.2

If the Contractor, being an individual, or where the contractor is a firm, any partner in that firm, shall at any time become bankrupt, or shall have a receiving order or administration order made against him, or shall make any composition or arrangement with or for the benefit of his creditors, or shall make any conveyance or assignments for the benefit of his creditors, or shall purport to do so, or any application shall be made under Bankruptcy Act for the time being in force for sequestration of his estate, or a trust deed shall be granted by him on behalf of his creditors; or

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28.3

If the Contractor, being a company, shall pass a resolution, or the court shall make an order, that the company shall be wound up, (in either case other than for the purpose of reconstruction) or if a receiver or manager on behalf of a creditor shall be appointed, or if circumstances shall arise which entitle the Court or a Creditor to appoint a receiver or manager or which entitle the Court to make a winding-up order.

28.4

Provided always that such termination shall not prejudice or affect any right of action or remedy which shall have accrued or shall accrue thereafter to ETISALAT.

29.

Bills. Within one week of project completion, the contractor shall submit diary sheets & summary, all stores material transaction documents and the project as-built drawings with actual site coordinates values in the format as followed by the concerned authority, for all newly installed plants including J/Bs, M/Hs, Cabinets, and stumped duct-ends, etc. in the “AUTOCAD/” format(soft copy and hard copy) to the satisfaction of the Site Engineer. Further the contractor shall render a numbered and dated detailed and priced bill of the same in accordance with the requirements of ETISALAT. All chargeable items on a Diary page should be included in the same bill. If exception be taken to any of the items or the charges, ETISALAT will amend and pay accordingly. The amendment(s) will be advised to the Contractor and the Site Engineer who will endeavor to resolve any dispute which arises there from. Any unresolved dispute between the Site Engineer, and the Contractor shall be referred to ETISALAT Head Office Account Dept., Chief Internal Auditor, and Legal Advisor.

30.

Payments

30.1

Payments by ETISALAT

30.1.1 One Hundred per cent (100%) of all work actually performed and passed after measurement shall be paid within thirty (30) days of the date of receipt of a numbered relative bill. In case the contractor cannot complete a section of work due to obstruction or reasons beyond his control, part payment may be considered up to a maximum of 50% value of the completed portion, at the discretion of ETISALAT. In certain cases, Advance Payments against bank guarantees and interim monthly payments shall be applicable if defined in the Contract. 30.2

ETISALAT reserves the right to withhold payment of such a sum as in the opinion of the Engineer is sufficient to cover the payments due to authorities for the permanent reinstatement and making good of carriageways or footways, or any other charge in respect of which ETISALAT is not satisfied that the Contractor has discharged all his liabilities and to pay any sum so withheld to such authority or other person to whom such liability exists. This will be deemed to include outstanding claims for damage to plant and equipment belonging to ETISALAT or a third party.

31.

Patents, etc.

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All royalties, license fees or similar expenses in respect of the supply or use for or in connection with the work of any invention, process, drawing, model, plan or information shall be deemed to have been included in the sum accepted or in the sum calculated in accordance with the prices accepted and the Contractor shall indemnify ETISALAT from and against all claims, proceedings, damages, costs and expenses which may be made or brought against ETISALAT or to which ETISALAT may be put by reason of such supply or use. 32.

Corrupt Gifts and Payments of Commissions.

32.1

The Contractor shall not

32.1.1 Offer to give, or agree to give, to any person in the service of ETISALAT any gift or consideration of any kind as an inducement or reward for doing or forbearing to do, or for having done or forborne to do, any act in relation to the obtaining or execution of this or any other contract for the service of ETISALAT, or for showing, or forbearing to show favour or dis-favour to any person in relation to this or any other contract for the service of ETISALAT. 32.1.2 Enter into this or any other contract with ETISALAT in connection with which commission has been paid or agreed to be paid or agreed to be paid by him or on his behalf, or on his behalf, or to his knowledge, unless, before the Contract is made, particulars of any such commission and of the terms and conditions of any agreement for the payment thereof have been disclosed in writing to a duly authorized representative of ETISALAT. 32.2

Any breach of this Condition by the Contractor or by anyone employed by him or acting on his behalf (whether with or without the knowledge of the Contractor) or the commission of any offence by the Contractor or by anyone employed by him or acting on his behalf or any other contract for the service of ETISALAT shall entitle ETISALAT to determine the Contract and recover from the Contractor the amount of any loss resulting from such determination and/or to recover from the Contractor the amount or value of any such gift, consideration or commission.

32.3

Any dispute or difference of opinion arising in respect of the interpretation, effect or application of this conduit condition or of the amount recoverable here under by ETISALAT from the Contractor shall be decided by ETISALAT whose decision shall be final and conclusive.

33.

Services Rendered by ETISALAT. If ETISALAT shall accept delivery of any articles or materials in connection with the work on behalf of the Contractor and shall pay any charges upon such articles or materials either for demurrage, handling, storage, cartage or carriage, or for the price of such materials, or if ETISALAT shall at the express or implied request of the Contractor perform any other services for the Contractor any expense so incurred by ETISALAT shall be recoverable from the Contractor.

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34.

Recovery of Sums Due. Whenever under the Contract any sum of money shall be recoverable from or payable by the Contractor, the same may be deducted from any sum then due or which at any time thereafter may become due to the Contractor, under this or any other contract with ETISALAT.

35.

Use of Documents, Information, etc.

35.1

Except with the consent in writing of ETISALAT, the Contractor shall not disclose the Contract, or any provision thereof, or any Specification, Plan Drawing, Pattern, Sample or information issued or furnished by or on behalf of ETISALAT in connection therewith to any person, other than a person employed or engaged by the Contractor in the carrying out of the Contract or any sub-Contractor, supplier or other person concerned with the same.

35.2

Any disclosure to any person permitted under Condition 35.1 shall be made in confidence and shall extend so far only as may be necessary for the purposes of the Contract.

35.3

Except with the consent in writing of ETISALAT, the Contractor shall not make use of the Contract or any Specification or other thing mentioned in Condition 25 otherwise than for the purpose of carrying out the work under the Contract.

35.4

Any Specification, Plan, Drawing, Pattern or Sample mentioned in Condition 35.1 remains the property of ETISALAT and must be returned to ETISALAT on completion of the Contract.

36.

Injury to Persons: Loss of Property.

36.1

This condition applies to any personal injury or loss of property (not being a loss of property to which Condition 9 applies), which arises out of or in any way in connection with the execution or purported execution of the Contract.

36.2

Subject to the following provisions of this Condition the Contractor shall:-

36.2.1 Be responsible for and reinstate and make good to the satisfaction of ETISALAT or make compensation for any loss of property suffered by ETISALAT to which this Condition applies. 36.2.2 Indemnify ETISALAT and servants of ETISALAT against all claims and proceedings made or brought against ETISALAT or servants of ETISALAT in respect of any personal injury or loss of property to which this Condition applies and against all costs and proceedings reasonable incurred in connection therewith. 36.2.3 Indemnify ETISALAT against any payment by ETISALAT in order to indemnify in whole or in part a servant of ETISALAT against any such claim, proceedings, costs or expenses, and ESS LPD VERSION-1(2012)

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36.2.4 Indemnify ETISALAT against any payment by ETISALAT to ETISALAT servant in respect of loss of property to which this Condition applies suffered by that servant of ETISALAT and against any payment made under any Government provision in connection with any personal injury to which this Condition applies suffered by any servant of ETISALAT. 36.3.1 ETISALAT shall notify the Contractor of any claim or proceeding made or brought in respect of any personal injury or loss of property to which this Condition applies. 36.3.2 If the Contractor admits that he is liable to indemnify ETISALAT in respect of any claim or proceeding, and the claim or proceeding, and the claim or proceeding is not an expected claim, he, or, if he so desires, his insurers, shall be responsible subject to the condition imposed by the following paragraph, for dealing with or settling that claim or proceeding. 36.3.3 If in connection with any such claim or proceeding with which the Contractor or his insurers are dealing, any matter or issue arise which involves or may involve any privilege or special right of ETISALAT (including any privilege or right in relation to the discovery or production of documents) the Contractor or his insurers shall before taking any action thereon, consult the legal adviser to ETISALAT and act in relation thereto as may be required by ETISALAT, and if either the Contractor or his insurers fail to comply with this paragraph, Condition 36.3.2. shall cease to apply. 36.3.4 For the purpose of this Clause "an expected claim" means a claim or proceeding in respect of a matter failing to be dealt with under a Government provision, or a claim or proceeding made or brought by or against a servant of ETISALAT. 36.4

Where any such claim or proceeding as is mentioned in Condition 36.2.2 or 36.2.3 is settled otherwise than by the Contractor or his insurers, he shall not be required to pay by way if indemnity any sum greater than that which would be reasonably payable in settlement having regard to the circumstances of the case and in particular to the damages which might be reasonable at law.

36.5

In this Condition: -

36.5.1 The expression "personal injury" includes sickness and death. 36.5.3 The expressions "servant of ETISALAT " and "servants of ETISALAT " include persons who are servants of ETISALAT at the time when a personal injury or loss of property to which this Condition applies occurs, notwithstanding that they cease to be such before any payment in respect of the personal injury or loss of property is made, and where they have ceased to be such by reason of their deaths, include their personal representatives, and 36.5.4 The expression "Government provision" means any decree, statue, warrant, order, scheme, regulations or conditions of service applicable to a servant of ETISALAT making provision for continuance of pay or for payment of sick pay, or allowance to or for the benefit of servants of ETISALAT or their families, or dependents during or in respect of sickness, injury or disablement suffered by such servants. ESS LPD VERSION-1(2012)

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37.

Fair Wages, UAE Labour Laws, Visas, etc. The Contractor shall in the execution of the contract, observe and fulfill the obligations upon Contractors specified in the United Arab Emirates labour laws, in particular, those relating to fair wages, working hours, religious holidays and visa regulations.

38.

Time Work. Only on the written authority of the Site Engineer, the Contractor shall perform time work, and he shall record the particulars in the diary and render an account of the same as hereinafter provided. All time work shall be performed and paid for as provided in Condition 53.

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MEASUREMENT AND PAYMENT CONDITIONS 46.

Conditions affecting the execution of the Work. The general description of paving, etc, given by ETISALAT are such as appear from a surface inspection. The Contractor shall be deemed to have obtained all further details of the paving, Ducts, Cable etc or otherwise, required by him in connection with his tender, including the nature of the foundations and of the subsoil. He shall also be deemed to have satisfied himself as to the conditions under which the work may or will be carried out and the supply of and conditions affecting labour.

47.

Work to be Carried out. The details of the work as given in the Schedule of Work are only provisional, and the lengths are approximates. No discrepancies in lengths or boundaries as shown shall affect the rates in the Schedule of Rates, but in the case of deviations see Condition 48.

48.

Deviations. Any deviation shall be paid for at the appropriate rate in the Contract.

49.

Added and Omitted Work. If work is added or omitted under the terms of Condition 4 payment will be adjusted at the appropriate inclusive rates in the Schedule of Rates.

50.

Application of Rates. The rates in the Schedule of Rates shall be deemed to cover for work done irrespective of day or night or holidays or as specified in the contract. They shall include all necessary labor, materials (except for certain articles named in the Specification to be supplied free by ETISALAT plant and services as stated in the Standard Conditions. The rates in respect of work under any given descriptions of paving, etc. shall be applicable to work of that class in any portion of the route.

51.

Deduced Rates: Special Rates. In the case of deviations or additions, if there be no appropriate rate in the Contract, and a rate cannot be deduced from the Schedule of Rates, payment will be made on the basis of a special rate to be agreed in writing between the Contractor and ETISALAT Where no rates are available in the schedule of rates the rates shall be built up on the basis of Similar works and rates available in the any other related contract.

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52.

Night and Friday or Holiday Work. No extra payment will be made for the labour and/or plant as Overhead, charges are as all the rates deemed to be covered by the rates for work performed during the Night, Friday or Holiday work. However, for certain cases such payment shall be made if specified in the contract.

53.

Time Work. All Time Work performed, shall be paid for at the rates and prices specified in the Schedule of Rates, as provided in Condition 38.

54.

Cartage and Demurrage. The Contractor shall perform at his own expense in all respects, all cartage and other services as specified in Condition 8. The Schedule of Rates specified in the Contract, shall be deemed to be on the basis of the services required by Condition 8 and this Condition.

55.

Sump Draining. The rates in the Schedule of Rates, shall be deemed to be inclusive of all requisite sump draining or pumping except as detailed in Conditions 56 and 99.

56.

De-watering. If carried out by the Contractor for his own convenience as an alternative method to sump draining, de-watering costs will be deemed to be inclusive in the Schedule of Rates, for trench work, tunneling and extra excavation, fill and ram on trenches and tunnels. If carried out by the Contractor on manholes, the De-watering costs shall be subject to the provisions of the Schedule of Rates

57.

Bunds and Discharge Hoses. If the Engineer agrees that a Bund is necessary, the Contractor shall be responsible for obtaining permission from the Authority for the size and location. The height of embankment shall be 100cm minimum and the total surface area occupied shall be measured from the centers of embankment construction. The work shall include all operations necessary for the construction and demolition together with associated reinstatement charges.

58.

Existing Plant or Other Obstructions

58.1

The Rates payable under the Schedule of Rates shall cover the cost of any temporary slinging or shoring rendered necessary by the carrying out of the Contract.

58.2

The cost of work in connection with existing mains, plant or other obstructions done in accordance with Condition 21 will be treated as an inclusive.

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58.3

If the undertakers owning mains or plant as aforesaid elect themselves to effect the removal or diversion of their plant, the Contractor shall pay to the undertakers the reasonable cost incurred (with prior approval from ETISALAT), and he may reclaim from ETISALAT the net amount plus 10 per cent, such percentage to be held as covering cost of foremen, supervision, office expenses and profit, as well as obligations thrown upon the Contractor by these Conditions during the time the undertaker's operations are in progress. The provisions of this paragraph will apply with prior approval from ETISALAT

59.

Surplus Excavated Material. The rates in the Schedule of Rates shall be deemed to be inclusive of cartage to and disposal at shoot or tip of any excavated material made surplus by the work and Contractor shall remove such material immediately from the site.

60.

Covering in. The Contractor shall give due notice to the Site Engineer whenever work is intended to be covered in the contractor shall provide all the required trial pits to verify the works, free of cost Where the work intended to be covered in includes work payable at any of the excavation rates in the Schedule of Rates or at any of the rock rates in that Section, payment for the work payable at these rates shall only be made if such work is seen and authorized by the Site Engineer before filling in is commenced.

61.

Measurement - General Provisions.

61.1

The Contractor shall provide the requisite number of persons and proper means and appliances to carry out the measurement.

61.2

The measurement shall be verified on behalf of ETISALAT by the Site Engineer or other representative of the Engineer, and by the Contractor himself or a person appointed by him, such person not being in the employment of ETISALAT.

61.3

The Contractor shall afford all reasonable facilities and assistance to the Site Engineer for compiling records of the location of the work executed under the Contract. The Site Engineer is responsible for the accuracy of these measurements.

61.4

The several works and materials shall be measured, net, in situ (to the nearer 100mm in the case of length and 50 mm in the case of width of trench), as executed, without reference to nay practice or other local custom that may prevail.

61.5

Measurement shall always be taken and recorded for all works chargeable under the Contract.

62.

Application of Rates.

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62.1

In the Schedule of Rates, the "Excavation" rates are applicable to excavation work paid for as provided in these Conditions, e.g.:-

62.1.1 Abandoned work, parts of side shafts and parts of pilot holes not used. 62.1.2 Excavation for ducts at greater or less than standard depths. 62.1.3 Excavation for jointing chamber at greater or less than standard depths, except where covered in other tendered rates. 62.1.4 Excavation for slewing, diversion of other undertakers' plant, etc. 62.1.5 Excavation for independent sumps, rubble bottoms, kiosk bases, etc. 62.1.6 The rates for each layer of excavation shall cover the timbering of that layer plus any additions or modifications to the timbering of shallower layers. 62.2

In the Schedule of Rates, the "Filling-in and Ramming" rate is applicable to the types of work as laid down in Condition 62.1.

62.3

The schedule of Rates, "Permanent Reinstatement and Making Good" rates are for use in connection with work as provided in these Conditions, e.g.:-

62.3.1 Excavation and filling-in of abandoned work including parts of pilot holes not used. 62.3.3 The rates shall include for interim sealing coat and cement or lime mortar bedding where required but not for concrete or reinforced concrete foundations to paving, the provision of such foundations being paid for at the appropriate "Foundations" rates. 62.3.4 Where a Man hole, Joint box, Pay Phone base, Cabinet base, etc are built but full excavation was not required, in these cases no credit shall be claimed by ETISALAT for the excavation work not done. However surround filling shall not be paid extra if the local available material on site is reused. 62.3.5 Where a Ramp is provided to a Jointing chamber for taking cable drums, winches etc, the cost of imported material brought to perform the work shall not be paid extra. 63.

Use of "Additives" or "improvers". No extra payment will be allowed for the use of "additives" and "improvers" where this is permitted.

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65.

Abandoned Work. If owing to obstruction or unforeseen difficulties the work cannot be completed in any trench or excavation, on the instruction of the Site Engineer such trench or excavation shall be filled-in and restored as provided by the Specification, the entire cost of such abandoned work being governed by the appropriate "Excavation", "Filling-in and Ramming" and "Permanent Reinstatement" rates in the Schedule of Rates. If abandoned work abut on adopted work the measurement of the restoration work common to both shall be excluded from the measurement of the abandoned work restored, and the margins specified under Condition 90 shall not be claimed in respect of the sides of abandoned and adopted work which abut on each other.

66.

Pilot Holes; Trial Excavations. If all or part of any Pilot Hole be utilized for a trench or Jointing Chamber excavation, it shall be measured in with the work and the remaining part of such a Pilot Hole not properly included as part of the work shall be termed a Partially Abandoned Pilot Hole and measured and charged for as Abandoned Work. Where no part of a Pilot Hole is proper to be measured i with the work, the excavation will be termed Totally Abandoned Pilot Hole and charged for as Abandoned Work. Payment for a trial Excavation shall be made at the appropriate rates in the Schedule of Rates, which shall include the cost of standing by, cartage in accordance with Condition 8.1 and any necessary guarding and lighting.

67.

Rock. Excavation in rock (including chalk) will be paid for as per an extra and the rates in the Schedule of Rates in the Contract. The amount of rock paid for shall be limited to the volume necessarily excavated in compliance with the requirement of the Specification regarding width of trench. Where complete removal of a boulder is approved by the Site Engineer payment will be made at the rate of (rock excavation) in the Schedule of Rates, for the total volume of the rock excavated. Such extra payment will be deemed to cover all additional work involved by the removal of the boulder.

68.

Timbering of Excavations. The rates in the Schedule of Rated, shall be deemed to be inclusive of all necessary timbering, sheet piling and shoring.

69.

Timber Left in. In order to provide for the safety of adjoining land or property, or otherwise Site Engineer may direct that timer shall be left in. Timber which the Site Engineer has directed shall be left in may, subsequently, at his

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direction or with his authority, be cut off at some point below ground level. 70.

Cost of Precautions Following an Objection to Route. The following basis applies where precautions are ordered by the Site Engineer under the terms of the Specification. The cost of precautions ordered below and/or above ground level to safeguard against damage to property must be borne by the Contractor.

71.

Earth Free From Stones. Wherever earth free from stones is called in the Specification, no payment will be made for providing and/or carting any necessary materials, including Polyethylene Cable Laying Work.

72.

Independent Sumps, Rubble Bottoms, etc. Where agreed necessary by the Site Engineer such items as Excavation, Filling-in and Ramming, Reinstatement and materials used, (other than temporary earth-supporting timber), to provide independent sumps, rubble bottoms, etc., in any excavation will be treated as inclusive to the Schedule of Rates.

73.

Test Cubes. The rates payable under the Schedule of Rates shall be deemed to include the cost of making, curing and testing of all test cubes of Concrete Quality 'A' which are ordered to be taken by the Site Engineer in accordance with the Specification.

75.

Duct Laying & Cable Laying, General.

75.1

Abutting Pavings. If a trench be opened on a line along which two or more paving abut, thus involving the disturbance of more than one class of paving, payment shall be made at the rate per meter run appropriate to the paving through which a line through the center of the trench passes.

75.2

Kerb Concrete Backing. The rates in the Schedule of Rates for Kerb shall include for concrete backing. Concrete below the depth of kerb shall be classed as foundations.

75.3

Layered Depth Rates. For all Polyethylene Duct and Cable laying and for other Duct laid under Grass or Unmade the rates in the Schedule of Rates, are for laying, etc., ducts or cables at certain specified depths (inclusive of variations as defined) or a layered depths. In such cases if the ducts or cables are laid at depths greater than the maximum depths for which inclusive contract rates exist, the excavation, filling-in and ramming for the extra depth shall be treated as "Excavation" and "Filling-in and Ramming" and be charged for at the appropriate rates in

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the Schedule of Rates. 75.4

Rocky Soils. In rocky soils where earth free from stones is required to afford a bedding in accordance with the Specification, the additional Excavation and Filling-in and Ramming and provision of earth free from stones shall be considered as inclusive in the schedule of rates.

75.5

Use of Mechanical Excavators. Where a trench shall be excavated by a mechanical excavator, under the terms of the Specification the payment of extras, if any, shall be based on the agreed necessary width of trench using manual excavation.

76.

Duct laying.

76.1

Rates inclusive to Standard Depth. The rates in the Schedule of Rates, shall, except where otherwise indicated, be inclusive for all work down to Standard Depth or layered depths and for any widening down to such depths which may be required because of extra depth. Including the laying of the warning tape at appropriate depth.

76.2

Non-standard Depths. If by direction of the Site Engineer the average depth of a trench exceeds the Standard Depth prescribed in the Specification the excavation, filling-in and ramming, below standard depth, shall be treated as "Excavation" and "Filling-in and Ramming" and be charged for at the appropriate rates in the Schedule of Rates. If the average depth of a trench be less than the standard, a corresponding deduction shall be made at the same rates. Where rates are quoted in the Schedule of Rates for laying ducts at certain specified or layered depths see Condition 75.3

76.3

Variations in Duct Grouping. If by direction of the Site Engineer a variation in duct grouping be required from that shown on the Schedule of Work and the rates in the Schedule of Rates, are inappropriate to such variation, they shall be adjusted by an addition or allowance calculated from the appropriated rates in of the same Schedule.

76.4

The rates in the Schedule of Rates for Laying and Jointing Duct in Open Trench shall include for laying the duct by itself or in conjunction with other ducts, also for cleaning, testing, draw rope left in SITU (including supply of draw rope) and for any earth free from stones necessary to meet the requirements of the Specification.

76.4.1 Ducts Through Service Pipe. PVC Ducts No. 54D and No. 56 and Polyethylene Duct . installed through service pipe or crossing etc will be paid for at the appropriate rates in the Schedule of Rates and shall include all necessary operations including those referred to in ESS LPD VERSION-1(2012)

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Condition 76.4. 76.5

Cutting and Bending of Ducts. All Cutting and bending of ducts shall be considered as inclusive.

76.6

Rodding and Roping and/or Cleaning and Testing.

76.6.1 The cleaning and testing of ducts laid under the Contract as required by the Specification including the modified tests required where the building of a jointing chamber is deferred until after the completion of a section of duct, shall be deemed to be included in the rates in the Schedule of Rates. 76.6.2 Where rodding and roping and/or cleaning and testing (including supply and leaving a draw rope in SITU) of ducts and ducts laid other than under the Contract is requested by the Site Engineer, such work will be paid for at the specified rate(s) in the Schedule of Rates. The rate(s) payable shall be related to the total bore length rodded and roped/cleaned and tested between two adjacent jointing chambers or points as directed by the Site Engineer. 76.7

Side Shafts. Where the trench is at normal depth Side Shafts, if agreed by the Site Engineer to be necessary, should be regarded as Abandoned Work and charged for accordingly. Where however, the trench is at extra depth, payment for the Side Shaft excavation shall be limited to that which is over and above the extra width arising from the extra depth.

76.8

Measurement Items Excluded.

76.8.1 Jointing chambers and concrete extensions shall not be included when measuring the length of ducts laid. 76.8.2 Bends. Bends shall be paid for at the rates appropriate to ducts of the same class. 76.9

Slewing. The Slewing work shall include for all operations detailed in the Specification for supporting the ducts so that they may be slewed and/or lowered and/or raised including movement to and from any temporary positions. Separate payment will be made for Excavation, Filling-in and Ramming, Reinstatement, Rodding and Roping and/or Cleaning and Testing. For the purpose of calculating the volume for Excavation, Filling-in and Ramming no credit will be claimed by ETISALAT in respect of the volume of Ducts. When measuring the length of the duct slewed on both sides of jointing chamber is slewed on one side of the jointing chamber, half the length of the jointing chamber will be added to the length of the duct actually slewed. Such allowance shall be deemed to cover for the slewing of any apparatus in the jointing chamber.

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76.10

Testing after Slewing. When jointing chambers are constructed on an existing duct route necessitating the slewing and/or lowering of existing ducts or when slewing and or lowering of existing ducts is necessitated by road alterations the rodding and testing of the "spare" ways will be paid for at the appropriate rate in the Schedule of Rates.

76.11

Marking Ends of Duct Lines. The rates in the Schedule of Rates, for Duct Laying will be deemed to cover all work in connection with the fixing of markers at the ends of duct lines at points in the Schedule of Work. The additional work in connection with the fixing on any such markers required in addition to those scheduled will be paid for at the specified rate in the Schedule of Rates.

76.14

Cutting and Removing existing Ducts. Cutting and removing existing ducts, including the rounding of cut edges, shall be considered as inclusive rate in the Schedule of Rates .

77.

Cable Laying.

77.1

Rates. The rates in the Schedule of Rates, for Polyethylene Cable Laying will be deemed to cover all work in connection with buried jointing points, buried terminating coils, and the fixing of markers at jointing points indicated on the Schedule of works including supply and laying of warning tapes, work in connection with any buried terminating coils required, shall be considered as inclusive rate in the Schedule of Rates.

77.2

Measurement. Measurement for payment for a length of Polyethylene Cable laid shall be restricted to the length of trench excluding the crossing of jointing chambers. Where a small length of cable is overlapped at jointing points or cable is left for jointing in a Joint Box or Manhole, such lengths will not be measured for payment purposes.

77.3

Drawn Through or Into Duct. Polyethylene Duct or cable drawn through or into duct rate shall include all necessary operations and rodding, existing plant where required Measurement for this purpose will be restricted to the length of ducts involved.

77.4

Laid in Open Trench. The rate in the Schedule of Rates under "Polyethylene Duct and Cable etc." for laying in open trench shall apply to laying a cable by itself or in conjunction with other cables.

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77.5

Earth free from stones. The supply and ramming of the 100 mm layers of earth free from stones in stony ground, both below and above the cable or cables, shall be considered inclusive in Schedule of rates.

77.6

Testing of the cables

77.6.1 Testing before Installation. It shall be the responsibility of the contractor to check the integrity of the cables and or test the cables before taking delivery from the ETISALAT stores. Any damages found later, shall be the responsibility of the contractor. 77.6.2 Testing before and after Installation. It shall be the responsibility of the contractor to check the integrity of the cables before taking delivery from the SITE/stores. Any damages found later, shall be the responsibility of the contractor. The contractor shall be responsible for any damages during transportation and handling of the cables. Once the cable is laid, the cables newly laid shall be tested by the Contractor in coordination with ETISALAT for the integrity of the cable, to confirm that no damage has occurred during installation. In case of any damages, the cost of the cable shall be recovered from the contractor. The contractor shall offer all the labour assistance. The testing of the cable shall be carried out before the release of the payment. 77.6.3 Marking Ends of Cables. The rates in the Schedule of Rates, for Cable Laying will be deemed to cover all work in connection with the providing of markers at the ends of cable lines at points in the Schedule of Work. 77.6.4 Cutting and Removing of Cables. Cutting and removing of cables including the sealing of cables, shall be considered as inclusive rate in the Schedule of Rates 77.6.5 Cables laid to cabinet/FDH. The cables laid to cabinet/FDH shall be left at the last Joint Box or up to the cabinet/FDH depending upon the Site Engineer instructions and site requirements.

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78.

Foundations.

78.1

General. The rates in the Schedule of Rates, in relation to the various pavings must include the excavation and replacement of the paving material and foundations of pitching, hardcore, macadam, road-metalling, any necessary cement or other foundations (except as indicated in the following paragraphs) and any rendering or grouting in connection with the reinstatement of such pavings.

78.2

Concrete Foundations to Pavings. The appropriate rates in the Schedule of Rates, for concrete and reinforced concrete will be paid as an extra over the "Excavation" rate at whatever depth these materials are encountered, provided that they form part of the Carriageway or Footway paving foundation. Any additional cost for reinstating pavings on Reinforced Concrete because of wider margins shall be deemed to be included in the reinforced concrete foundation rates relating to restoration with new material.

78.3

Foundation Portion of Concrete Pavings. The foundations portion of concrete or reinforced concrete in situ paving as defined in the Specification shall be paid for at the rate in the Schedule of Rates.

78.4

Concrete Foundations in part of Trench. If concrete or reinforced concrete paving foundations occupy any portion of the trench they shall be paid for at the concrete excavation/reinstatement rates.

78.5

Concrete other than Paving Foundations. Where reinforced or un-reinforced concrete, not forming part of the carriageway or footway foundations, is encountered and the concrete is of comparable hardness to soft, hard or boulder rock as defined in the Specification then the excavation of such concrete will be paid for at the appropriate rock rate.

78.6

Foundations other than Concrete. Where encountered below 300 mm from the paving surface or at any depth under unmade, grass (any category) or any cultivated ground, and whether or not required to be replaced as found, any paving or foundation material which if excavated by hand methods presents a similar difficulty in excavation to such items as pitching, hardcore, road-metalling and derelict foundations, with the exception of reinforced or un-reinforced concrete will be paid at the subka surface rate in the schedule of rate.

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79.

Tunneling

79.1

When Rates not Applicable. If the Contractor elects to tunnel for any length, or if it is specified that a tunnel will be excavated for a distance of less than 1.8m, payment will be made as if the work had been performed by breaking out from the surface. Such payment shall be deemed to cover all cost in connection with back-filling with concrete as specified in the Specification.

79.2

Measurement of Tunnels. Subject to Condition 79.1 the length of tunnel to be paid for at rates in the Schedule of Rates shall be arrived at by measuring the actual length of the completed tunnel, from the point where the driving of the tunnel commences to the point where the tunnel finishes, including the space below any intermediate shaft. Where a manhole is constructed on a tunnel and its position is used temporarily as working shaft, the manhole shall be excluded from the measurement of the tunnel. Concrete or brickwork extensions shall also be excluded.

79.3

Rates for Tunneling. When tunneling rates are included in the Schedule of Rates, they shall cover all operations in connection with the laying of duct in tunnel, viz., excavation, all necessary shoring, timbering (including timber left in), laying and jointing of ducts, filling of tunnel headings with concrete, cartage of all materials displaced, and including any intermediate shafts or alternative arrangements if intermediate shafts are not practicable), the provision of illuminants and all other services including the installation and withdrawal of the Inflatable Tube. When a tunnel is to be constructed and inclusive rates are not contained in the Schedule of Rates, the work will be paid for at the appropriate rates in the Schedule of Rates.

81.

JOINTING CHAMBER, General.

81.1

Rates: The Schedule of Rates, include the supply and installation of all materials and fittings and complete construction and the cutting to length of existing ducts including any access subway where specified, (e.g. excavation; cartage of materials displaced; concreting; reinforced concreting; filling-in work in connection with terminating ducts in jointing chambers; all necessary timbering and shoring; such measures as required by the Specification to protect cables and associated equipment; in the case of interim restoration and permanent reinstatement and making good).

81.2

Variations in Jointing Chamber Construction.

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Where under the terms of the Specification the Site Engineer may require modification of standard dimensions the price for the standard structure shall be adjusted at the appropriate rate in the Schedule of Rates except for variation in depth of Joint Boxes, for which a variation rate is quoted in schedule of rate. The method of payment for shaft entrances is detailed in Condition 82.3 81.3

Demolition-Recovery of Jointing Chambers. The prices for Demolition or Recovery of Jointing Chambers in the Schedule of Rates, which are inclusive of demolition of shafts, etc., shall apply to the appropriate description of Jointing Chambers irrespective of the type, thickness of walls, variations in depth, etc., of the jointing chamber concerned. Where an existing jointing chamber is demolished or recovered and or a new one constructed in new or on a new site, no credit will be claimed by ETISALAT in respect of excavation etc., not required to be performed.

82.

Manholes.

82.1

Measurement. Measurement of manholes shall be taken as follows:Length and width-All types. Between outside surfaces of walls. Depth - All types. Between bottom of concrete floor and surface of carriage way or footway including the shaft when shaft entrance is constructed, the depth between a point 450 mm below the surface and the top of the roof beams shall be considered as inclusive in the schedule of rates. Beyond the 450 mm depth is chargeable as indicated under Excavation, "Filling-in and Ramming" (see also Condition 82.3).

82.2

Frames and Covers. The prices in the Schedule of Rates, for Manholes shall be based on fitting up to 160 mm deep Frames and Covers No.1 or No. 2.

82.3

Shaft Entrance. When a shaft entrance exceeding 450 mm with No.1 or 2 C/W F & C to a manhole is provided, extra work involved, shall be paid as per appropriate Schedule of rates.

82.4

Pumping Payment. Payment for pumping in Manholes will be made on the basis set out in Condition 99 and in the Schedule of Rates, Time work rates.

83.

Joint Boxes.

83.1

Concrete Surrounds. The concrete surround called for in the Specification will be deemed to be included in Joint

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Box rates

83.3

Joint Box No. 23. The rate in the Schedule of Rates for the installation of J.B. 23 will cover all operations involved including excavation in any surface, back-filling, and permanent reinstatement, drilling entry holes if necessary, etc. including provision of concrete surround, where required with supply and installation of JB-23 with ductile cover.

84.

Miscellaneous.

84.3

Demolishing Concrete or Block work. The rate(s) in the Schedule of Rates for Demolishing Concrete or Block work shall be payable only when enlarging or fitting frames and covers to existing jointing chambers and no rates for these items inclusive of such demolition) are tendered in the Schedule of Rates.

84.5

Protection Posts. The specified rate in the Schedule of Rates shall be applicable for both CAST IN SITU or PRE CAST for the supply and erection of galvanized Iron Protection post as per Drag. CN 1065Z.

84.6

Marker Post. The specified rate in the Schedule of Rates shall be applicable for both CAST IN SITU or PRE CAST for the supply and erection of Marker post as per Drag. CN 1065 Z.

84.7

Cabinet Cross Connection/ FDH (Fiber Distribution HUB).

(a) Build Base and Erect Cabinet – Subject to the supply by ETISALAT of such articles as are specified in the Specification the rate in the Schedule of Rates, in any paving, includes the supply of all materials and fittings, necessary excavation, complete construction of the base, earth rod, necessary interim or permanent reinstatement, and the erection of cabinet thereon. Where modification of standard dimensions is required by the Site Engineer, the price of the standard structure will be adjusted at the appropriate rates.

(b) Recover Existing Cabinet/FDH and Demolish Concrete Base. The rate in the Schedule of Rates is a lump sum to cover all work in connection with the recovery of existing cabinet, protection post, the demolition, filling-in and interim or permanent reinstatement of existing concrete bases. ESS LPD VERSION-1(2012)

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Where an existing concrete base is demolished and a new one constructed on the site of the demolished concrete base, no credit will be claimed by ETISALAT in respect of excavation, etc., not required to be performed. 84.8

Renewing and/or Raising Frames and Covers. The rate for renewing and/or raising up to 75 mm Frames and Covers in any paving and foundations includes:- (1) breaking away surrounding concrete, (2) removal of old frame and cover, cleaning of the Frame and covers and delivery to such places as the Site Engineer may direct, (3) breaking out existing mortar, concrete or packing bed down to the top of the jointing chamber walls or shaft and cleaning off, (4) fitting new frame and cover in accordance with the Specifications. The rate however excludes the modifications to Jointing Chambers quoted separately in the Schedule of Rates.

86.

Reinstatement Authority. If the authority shall have given notice or shall give notice to ETISALAT or elect to do the permanent reinstatement and making good of the street or controlled part thereof at upper levels broken up by the Contractor, the Contractor shall be paid as per schedule of rates. Where the contractor has been allowed by the Authority for the permanent reinstatement of the paving disturbed, the contractor shall carryout the reinstatement work observing the standards imposed by the Authority. If the reinstatement work done by the contractor is not acceptable to the Authority, the contractor shall pay to the street authority that will be claimed by the Authority. In default of any such payment by the Contractor, ETISALAT may pay the sum to the authority and deduct the amount so paid from any sums payable to the Contractor under this or any other contract entered into by the Contractor with ETISALAT.

87.

Basis of Rates. The particulars furnished in the contract of Reinstatement Charges and Conditions authorities concerned or liable to be considered in the execution of the work shall deemed to be the basis of the rates in the Schedule of Rates, in relation to work connection with which the work or permanent reinstatement and making good will performed by the Authorities.

89.

of be in be

Agreement of Measurements. In connection with the restoration of carriageways and footways (pursuant to the provisions of the Specification) measurements of surface areas disturbed, concrete inserted, etc., shall, when the restoration is carried out by the street authority be agreed between the Contractor and the street authority, but attention is drawn to Condition 93.1 regarding Strengthening Materials.

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90.

Margins. As regards margins, the rates in the Schedule of Rates, the following margins shall be considered as inclusive, except where otherwise specified under Reinstatement Charges and Conditions, be held to cover the restoration of the area disturbed by the whole of the work including deterioration occurring during the interim restoration period plus the following margins which are the maximum trimming allowances which ETISALAT will recognize, namely: In asphalt, macadam, treated macadam, gravel, flint, in SITU paving, or similar pavings, a margin of 75mm on each side, except where on reinforced concrete foundations. In reinforced concrete paving and all paving and surfaces on reinforced concrete foundations, a margin of 150 mm on each side In wood, setts or bricks a margin of 115 mm on each side. In foundations of concrete, a margin of 75 mm on each side. Any additional reinstatement exceeding the above margins and necessary in connection with the work either on direction of Authority or due to site condition if agreed by the Site Engineer shall be paid for as per the Schedule of Rates. Where the authority insists for a wider trench than normally required for the purpose of better compaction and reinstatement of paving, the extra width shall be measured and paid for as per the schedule of price works.

91.

Flags or Cultivated Grass. In flag paving or cultivated grass the rates in the Schedule of Rates, shall be held to cover the restoration of the area of paving which it is necessary to disturb; in the case of work under the Schedule of Rates, restoration of the area which it is necessary to disturb will be paid as per actual measurement and after approval from Site Engineer.

92.

Broken Flags, etc.

92.1

Before Disturbance. No allowance shall be made in the rates to cover the cost of supplying new flags, paving bricks, titles, kerbs or setts to replace those found broken or cracked before disturbance by the Contractor before the paving is disturbed a representative of ETISALAT, the authority and the Contractor will jointly survey the route and will agree upon the number of these items found broken or cracked which cannot be re-laid. Where the authority carries out the permanent reinstatement of the paving, payment for new flags, paving bricks, tiles, kerbs or setts to replace those which are found broken or cracked before disturbance by the Contractor and which cannot be re-laid will be a matter for settlement between ETISALAT and the authority.

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92.2

During Operations. The cost of replacing all flags, paving bricks, tiles, kerbs or setts broken or damaged during the progress of the work shall be borne by the Contractor.

92.3

Cartage. Any costs of cartage or handling of the broken or new flags, paving bricks tiles, kerbs or setts whether the permanent reinstatement is carried out by the street authority or the Contractor, shall be deemed to be included in rates.

93.

Strengthening Materials.

93.1

Excluded from Other Rates. Except as in Condition 93.2 or otherwise specifically stated herein, no allowance should be made in the rates in the Schedule of Rates for the supply and insertion of strengthening materials, e.g., concrete, pitching, hardcore, Subka/Macadam, etc. for foundations over and above that which already exists. If any Authority requires the insertion of additional strengthening material and it is provided by a Authority, payment will be based upon the appropriate charges made by that authority and where provided by the Contractor, upon the appropriate rates in the Schedule of Rates.

93.2

Included in Other Rates. The rates referred to in Condition 93.1 shall be deemed to include for strengthening materials in the following circumstances:-

93.2.1 Concrete within 75mm and R/F concrete within 150mm of the surface when replacing a recognized paving material. 93.2.2 Concrete replacing any part of a composite paving, for which a special rate is quoted. 93.2.3 Surplus material available on the work where used as strengthening material. 93.3

Use of On-site Material. Where the Site Engineer agrees that a suitable hard material available on the work can be used as strengthening material no payment will be made for such material

93.4.

Strengthening Materials Rates. The rates in the Schedule of Rates, for Strengthening Materials shall include for provision, delivery on site and insertion thereof as per condition 602 (d).

93.5

Credits. Wherever Strengthening Materials or Wherever Strengthening Materials or concreting rates or payable and Filling-in and Ramming of the volume concerned is also being paid for

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under some other inclusive contract rate, credit will be taken by ETISALAT at the rate in the Schedule of Rates, for Filling-in and Ramming for a volume equal to that of the strengthening material or concrete inserted. 94.

Compaction Test. The scope of work in Schedule of Rates, shall be deemed to include any number of tests required to meet the standards/requirements of the authorities as per condition 603. Sample collection of compaction test, the location shall be specified by the Site Engineer as per Condition 603. The testing laboratory must have the prior approval of the Authority.

99.

Pumping Conditions For Payment in Manholes.

99.1

Pumping time in Manhole or Excavation for Manhole will be paid for at the appropriate rate in the Schedule of Rates, Timework Rate, provided that such pumping is certified as necessary by the Site Engineer.

99.2

deleted

99.3

The calculation of pumping time shall commence at the start of excavation or demolition of an existing manhole where applicable and shall end when all work on the manhole structure including any shaft is complete or when the back-filling above the manhole roof reaches the water table, if this be above roof level, whichever is the later.

99.4

Pumping carried out in connection with the provision of an independent sump, rubble bottom or other measure taken to permit construction of a manhole, shall be deemed as pumping time for the manhole.

99.5

Pumping carried out in connection with the rectification of defective work and for acceptance inspections shall be excluded from the calculation of reckonable pumping time.

99.6

Pumping/De watering time. For thrust boring works and Break through and make good (BTMG) shall be paid extra over the scheduled rates.

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DEFINITIONS SECTION INDEX Para

Title

Para

Title

101. 102. 103.

Abandoned Work Damp Mix Duct

108. 109. 110.

Shaft Side Shaft Shuttering

104. 105. 106. 107.

Earth, Free from Stones Jointing Chamber Pilot Hole Rock

111. 112. 113. 114.

Trial Excavation Tunnel Way Paving

In the tender and the Conditions and the several schedules thereto unless the context otherwise requires : 101.

Abandoned Work. "Abandoned Work" means a trench or excavation which, due to obstructions or other unforeseen difficulties, cannot be wholly utilized, but which is required to be filled in, rammed and the surface restored, and is not proper to be measured in with the work charged for at inclusive rates.

102.

Damp Mix (Concrete). "Damp Mix" means a mixture of concrete of the quality specified but containing no more water than is sufficient for hydration of the cement and coagulation of the ingredients; the concrete shall have no measurable slump. As a guide, the consistency may be checked by squeezing between the hands a small quantity of the freshly mixed concrete which should hold the shape formed and not exclude excess water.

103.

Duct. Duct" means a single or Multi Way duct formation-using duct of PVC, polyethylene, or other material.

104.

Earth, Free from Stones. "Earth, Free from Stones" means either (a) loose earth, all of which will pass through a 15mm mesh sieve, or (b) clay having approximately the same moisture content as when excavated. Materials (a) and (b) shall be capable of being thoroughly compacted around, and material (a) between, ducts of any type, in either case, the material shall not cause damage to the ducts during back-filling and shall not leave voids to form a water course. Clay prior to back-filling shall be reduced in size if necessary to

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prevent voids in the backfill.

105.

Jointing Chamber. "Jointing Chamber" means any manhole, joint box or other underground vault or chamber giving access to duct routes and/or cable.

106.

Pilot Hole. "Pilot Hole" means an excavation taken out during the execution of a duct work scheme in order to determine the position of buried plant and/or conditions below the surface. The usual form of a Pilot Hole for a duct or cable trench is across the line of the trench, and for a Jointing Chamber, Cabinet, etc., at any position necessary to indicate a clear excavation space for the proposed structure.

107.

Rock. The definition of rock is divided into the following types:

(a) Soft Rock. Means a bed of rock which may consist of a mass of soft stone or a mass of hard stone containing fissures or seams; it not being practicable to excavate by fork and/or spade and, although possible to excavate using an ordinary pickaxe would, if so excavated, result in a very uneconomical rate of progress and so necessitate the use of a compressor and pneumatic tools for economical excavation (e.g.) lime stone, sand stone, concrete. (b) Hard Rock. Means a solid mass of rock which may have seams, but is virtually unaffected by a blow from a pickaxe, and requires a compressor or blasting equipment to execute excavation (e.g.) granite Quartzite and R/F concrete. (c) Boulder Rock. Means a solid stone in boulder formation, similar in character to hard rock having a measurement exceeding 380mm cube or volume exceeding 0.055 cubic meter. 108.

Shaft. "Shaft" means the vertical access aperture (a) to an underground manhole, (b) to a horizontal passage forming part of a manhole or, (c) to a tunnel constructed for the purpose of laying duct. In the case of (a) and (b) the shaft commences from a point 450 mm below the surface level down to the top of the manhole roof; in the case of (c), from the point at which the excavation commences to a point level with the top of the tunnel roof timbers.

109.

Side Shaft. "Side Shaft" means an excavation carried out parallel to or at some angle alongside and constituting a widening of a trench in order to facilitate the laying of a duct past and obstruction.

110.

Shuttering.

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"Shuttering" means all framework used in concrete construction.

111.

Trial Excavation. "Trial Excavation" means an excavation of an exploratory nature, as directed by ETISALAT, in order to determine the position of or to expose buried plant and/or to determine conditions below the surface for any or all of the following (a) planning of a proposed duct work scheme, (b) maintenance work by ETISALAT staff and, (c) recording of buried plant.

112.

Tunnel. "Tunnel" means a horizontal, or near horizontal, heading or passage of any length, and excavated below the surface for the purpose of laying duct and associated works; it shall normally have two or more surface access points. Short length headings under kerbs or other pavings, not removed, shall be classed as Tunnel.

113.

Way. "Way" means a single duct or one duct within a multi-way duct formation.

114.

Pavings are defined as follows: CARRIAGEWAY AND FOOTWAY

Description of Paving Asphalt

Classes included

Bitumen and macadam

A mixture of aggregate and bitumen or tar having preponderance of coarse aggregate and a substantial proportion of voids. It can be of either single or double course construction and is usually warm when consolidated. Usually of open or medium texture and has the appearance of aggregate held together by a bitumen or a tar binder.

Grass

A level or even grass surface which requires the careful removal and storage of the turf, and protection from damage of the adjacent turf. In reinstating, the turf shall be carefully replaced; damaged turf being renewed by importing new turf and the reinstated area shall be level or even of itself and with the adjacent area. All surplus stones and spoil shall be cleared from the reinstated and adjacent areas.

Subka

Sand originating from coastal containing salts which include carbonates, sulphates, chlorides and others which has been alternatively watered and rolled to form a wearing surface.

Flags artificial

All classes of artificial flagstones.

Kerb

All classes of Kerb.

Unmade

Surface where no paving exists and no reinstatement, temporary nor permanent, can be called for.

Carpet and Surface Dressing

Where the carpet is 13mm, or less in thickness, the classification shall be defined as that of the paving, except Macadam, when impregnated with and/or surfaced to a thickness of 13mm, or less with tar, pitch, bitumen or asphalt, shall be classed as bitumen or Macadam, and

A mixture of relatively hard asphalted cement with aggregate, the aggregate to be so graded as to provide a solid impervious mass having no voids. It can be of either single or double construction, and, when hot can be spread by rakes or mechanical spreader, and compacted by means of a roller. It may have coated lippings in the surface. The appearance of a cut face of asphalt will be of a dense mass containing graded aggregate of about 25mm down (in some cases the aggregate is of uniform size) and resembles black broken concrete. The binder is so strong that a piece cannot be broken by hand.

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(b) Mastic Asphalt, irrespective of its thickness. Dual Pavings

The result of subsequent application of a wearing course to a previously existing wearing course.

Macadam

All hard untreated stone, slag or gravel forming footway or carriage way Pavings.

Tiles

All classes of tile pavings,

Ornamental Tiles

Tiles which have been furnace glazed to provide an ornamental or patterned finish.

Cobbles

All cobbled, grouted with cement.

Concrete in SITU

Un-reinforced concrete, granolithic and all other similar pavings.

Concrete in SITU

Reinforced concrete granolithic and all (reinforced) other similar pavings

Rough Unsurfaced

Unsurfaced but prepared with foundation of hardcore, road base or similar material.

Setts

All setts, natural or artificial stone, other than cobbles, whether plain or grouted with cement, tar or other material.

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QUALITY OF MATERIALS SECTION INDEX

201.

Para

Title

Para

Title

201. 202. 203. 204. 205. 206. 207. 208. 210.

Specifications Concrete Quality Mixing Water Placing & Cleanliness Cement Additives Samples

212. 213. 214. 215 216. 217. 218 219.

Sand Aggregate Size of Aggregate Cement Mortar Iron and Steel work Hardcore Stabilized Backfill Water Proofing

Specifications. All materials not otherwise specified are to be in accordance with the Specification of the British Standards Institution, in so far as those Specifications apply.

202.

Concrete. (a) Concrete shall be of the quality required by this Specification, or as directed by the Site Engineer. The qualities used as follows, but see also Condition. 203. Concrete. (a). New chart added for ready mixed or mechanically mixed concrete (See below chart). (b). Substitute as below: The contractor shall use ready mixed concrete for any specified grade of concrete, subject to approval of the concrete supplier and mix design etc. by the Site Engineer. All ready mixed concrete shall conform to BS 5238, batches at the concrete plant, to be used to approval and shall comply with all the requirements of the contract. The concrete shall be carried in purpose made agitators operating continuously, or transit mixers specially designed to carry the product. The concrete shall be compacted and in it final position within a maximum period of two hours of its batching time at the plant unless a longer period is agreed by the Site Engineer under special circumstances. The time of batching concrete shall be recorded on the delivery note along with the details of the constituents of each batch of mix. When truck mixed concrete is used water is to be added at the central batching plant of quality and in quantity as specified or approved. With trucks mounted with proper water dispensers the possibility of adding water, to dry mixed batch at site can be Permitted if agreed by the Site Engineer. Under no circumstances water shall be allowed to be added either during transit or at site to the ready mixed concrete.

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The transit mixers and their mixing and discharge requirements shall comply with the requirements BS 4251. Mixing shall continue for the number and rates of revolutions are recommended minimum rate of revolutions per minute. Grade of Concrete Characteristic strength 0 28 days in N/nm2 Individual Test Results To be more than (N/mm2) Mixes to be designed for a mean Strength (N/mm2) Slump Max (with plasticiser) Max. water cement ratio Minimum Cement (kg/m3) Total Aggregate (kg/m3) %age of fine aggregate to total Dry Aggregate Zone © Zone (M) Zone (F) Nominal maximum size of aggregate

A 40

B 35

C 25

D 15

32

28

20

12

48

44

32

20

70 0.4 400 1650

70 0.45 370 1700

100 0.55 300 1750

120 0.65 250 1800

40 – 45 35 – 40 30 - 35 20 mm

40 – 45 35 – 40 30 – 35 20mm

35 – 50 35 – 50 35 – 50 20mm

35 – 50 10mm

All (A – B – C – D) Vibrated

Method of compaction

For pump able concrete, admixtures may be used to increase the workability. As there is likelihood of higher strengths due to their use, the requirements of average of four cubes and that of an individual test result have to be correspondingly increased and those figures shall be agreed upon at the trail mix stage. 7 – days strength is 0.8 of 28 days strength. All Materials are to generally confirm to following standards: Cement

:BS 12

Water

:BS 3148 (Also as specified for concrete works)

Aggregates Admixtures

: 882 BS :BS 5075 Part I

All concrete mixes are to be designed according to requirements of the above table. ** 203.

As directed by the Site Engineer.

Quality. (a) Where necessary, details of the concrete to be employed for Jointing Chamber construction will be included on the construction drawing. In all other cases, Concrete Quality "A" shall be used for the construction of Jointing Chambers and for other operations as specified. (b) Concrete Quality "D" shall be used for concrete blocks in which ducts are laid and for

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filling Frames and Covers unless otherwise specified; also, for duct concrete surround. (c)

Where a coarse concrete is required for supporting or protecting buried plant, Concrete Quality "C" shall be used, unless otherwise specified.

(d)

Concrete Quality "B" shall be used for insertion between electricity supplies and plant where normal separation cannot be obtained, unless otherwise specified.

204.

Mixing. (a)

Concrete Mixing will be done by machine however hand mixing may be allowed only at the discretion of Site Engineer for minor works. Such minor works shall not exceed 0.5m3 or 3 bags of cement whichever is less, provided a 10 % more cement is added for the same batch of mixing. When mixed by hand the ingredients shall be repeatedly turned over and mixed in a dry state on mixing boards, after which water from the rose of a watering can shall be added, and the material shall then again be turned over sufficiently to ensure thorough mixing.

(b) The mixing boards shall be sufficiently large to give ample room for turning over the ingredients entirely from one place to another and shall be so arranged or constructed that liquid cement shall not escape through the joints. (c) When mixed by machine the ingredients shall be put into the machine dry without prior mixing. The water may be inserted either first or last. Such machines shall, however, be used only so long as they ensure thorough mixing and are maintained in clean condition. They shall be of the "batch" type. (d) Sand and aggregate, other than all-in aggregate shall be stored separately on site. 205.

Water The standard cleanliness of water for mixing and curing is that it shall be free from impurities. The quantity used shall be sufficient, but not more than sufficient, to secure a plastic mixture and shall not exceed that necessary to provide the maximum specified slump. The Site Engineer may reject concrete which, in his opinion, is over watered to the extent that its strength will be impaired. Further, the quality of water shall conform to BS 3148. The PH requirements of water shall be from 7-9. The inorganic impurities of water shall not exceed the following  Chlorides = 600mg/litre  Sulphates = 500 mgs/litre.  Total dissolved solids = 2000mg/litre.  Alkali carbonate and Bicarbonate = 1000mg/litre.

206.

Placing and Cleanliness. (a) The concrete shall be deposited in its intended position as quickly as possible after being

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mixed within the specified time period and all concrete footings and foundations shall be tamped and carefully leveled. (b)

Concrete which has become hard, dry or dirty after being mixed shall not be used. If any earth falls on the top of any concrete after laying and before the work is completed it shall be carefully removed.

(c) Cleanliness shall be observed in all operations and in relation to all materials. 207.

Cement. (a) All cement shall be fresh and of approved manufacture. Wherever so specified ordinary Portland cement shall be locally manufactured complying with BS 12 or ASTM 150 type 1.Sulphate resisting cement to be used for all underground structure. Unless specifically any other type of cement is recommended to be used, shall be to BS 4027 or ASTMS 5. The soil conditions may require the cement to be type MSRPC which will take preference on any other type of cement. (b) Cement brought to the site shall have prior approval and the contractor shall submit at all times the manufacturers test certificate and proof that required specification has been complied with together with a note of the date of manufacture, certified by an independent approved lab. The cement shall be rejected in case considered as unsuitable for the works. (c) The cement shall be properly stored under cover and clear of the ground to well protect against the effects of weather and contamination. Bags of the cement once opened shall be completely consumed.

208.

Additives `No additives of any type shall normally be allowed unless approved by Site Engineer. Wherever fair surfaced concrete is specified or for ready mixed concrete the contractor shall use approved plasticizers to improve the workability of concrete. All plasticizers shall be strictly used to the recommendations of the manufacturer. The concrete for all below ground structures has to be necessarily watertight. For the purposed a suitable approved integral water proofing compound described as a blend of inorganic plasticized shall be used.

210.

Samples Where required Site Engineer, shall direct the contractor to provide the required certificate of test report for the cement from approved independent laboratory.

212.

Sand (Fine Aggregate). All sand shall be in accordance with BS 882, part 2 grading of sand shall be within the limits of class C or M, table 5 of BS 882. The percentage by weight passing BS 410 test

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sieve 300mm shall not exceed 30%.Fine aggregates shall comply with the following specifications:     

Clay lumps and Friable particles (to ASTM C142) - Max 1% by weight. Coal, Lignite and shells (to ASTM C123) - Max 1% by weight. Acid soluble Chlorides - Less than 0.06% by weight. Acid soluble Sulphates - Less than 0.04% by weight. Sodium Sulphate soundness test (ASTM C88-5 cycles) – Loss less than 10% by weight.  Sand equivalent (AASHTO M6) – Minimum 70%.  Water absorption ( ASTM C 128/127) – Maximum 2%.

213

Sand (Coarse Aggregate). The coarse aggregate shall be in accordance with Bs 882 part 2. Grating of coarse aggregate shall be with Table 1 of BS 882 for nominal size of graded aggregate 20mm to 5mm. Coarse aggregates shall nominally comply with the following specifications:         

214.

Soft & Friable particles (to ASTM 142) – Max 1% by weight. Organic Material of any nature - Not allowed. Acid soluble Chlorides (BS 812 ) - Less than 0.03% by weight. Acid soluble Sulphates (BS 812) - Less than 0.3% by weight. Magnesium Sulphate soundness test (ASTM C88) – Loss less than 10% by weight. Fine value (BS 812 part 111) – More than 100 kn. Flakiness & Elongation Index (BS 812) – Less than 2.5%. Abrasion loss (ASTM C131) – Less than 2.5% Water absorption ( ASTM C 128/127) – Maximum 2.3%.

Size of Aggregate. Aggregate for each of the qualities of mix included in Para 202 shall be graded up to and including:A B C D

215.

: : : :

20mm 20mm 20mm 10 mm.

Cement Mortar. (a) The Cement Mortar shall consist of :  

One measurement of cement conforming to the relevant BS.

 

Three measures of sand conforming to BS1200.

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(b) The materials after being gauged shall be thoroughly mixed in a dry state on mixing boards is (Condition. 204 refers), and then thoroughly mixed with sufficient water to from a stiff mortar.

216.

(c)

On no account shall water be added after mortar has once been mixed and mortar, after it has once begun to set, shall not be used or mixed with other cement and sand.

(d)

An excess of water shall in no case be used for mixing, and if more water than is necessary be used, such mortar after it has begun to set shall not be mixed with further quantity of sand and cement, but the whole shall be condemned. Iron and Steel Work. All reinforcing bars (to be epoxy coated) shall be hot rolled high yield strength bars from an approved manufacturer complying with BS 4449 or similar approved standard. Cold twisted bars shall be to BS 4482 or equal approved standard. Steel Fabric reinforcement shall comply with BS 4483 or equal approved standard. All steel received at site shall have necessary mill certificate and shall be subject to confirmation tests from an approved independent test, for which samples shall be drawn from actual batch of steel employed for the works.

217.

Hardcore. All hardcore shall consist of hard block, concrete or stone graded down to a minimum of 75mm. When provided for use in trenches, sufficient hardcore material under 75mm shall be added to fill voids and aid consolidation.

218.

Stabilized Backfill. Stabilized Backfill shall consist of excavated soil mixed with cement. The ration of excavated soil to cement shall be 10 to 1, or as otherwise specified, for the back-filling of trenches. Mixing may be carried out by hand or machine in either case the mixing shall be sufficient to give an even color throughout.

219.

Water Proofing All concrete works below ground and in contact with soil shall be water proofed in the following manner:. All concrete structures shall be internally applied with two coats of master seal or Magna slurry or similar and equal approved crystal forming compound. All application shall be strictly to manufacturer’s recommendations, and shall be continuously cured with water for at least three days or more as recommended by the manufacturer. Externally, all concrete surfaces shall be applied with a suitable primer and then with a self-adhesive membrance Bituthene 1000 XHc or Premseal 100 or equal approved. The membrance shall be protected by 3mm thick protection board Sevipak or Apoc or equal approved. The protection board shall be properly wrapped and secured in place before

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any back filling works. All such structures shall have heavy duty PVC water stop min 250mm wide (Centre fix or Rearguard type depending on the situation at site) of make serviseal from servicised or green streak. For all concrete structures “Polythene sheet 1000 gauge” shall be provided under all blinding concrete (PCC)”.

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EXCAVATION SECTION INDEX

301.

Para Title

Para Title

301. 302. 303. 304. 305. 306. 307. 308 309. 310.

311. 312. 313. 314. 315. 316. 317. 318. 319.

General. Sub-Soil. Protection of Excavated Material. Timbering ,Etc. Objection . Mechanical Excavators Silencers Protection Paving Pilot Holes & Trial Excavations Side Shafts

Supports Width of Trench Standard Depth Change of Level Trenches for poly- ethylene Cable Tunneling Lowering of Ground water Blasting of Rock Bunts

General. The Contractor shall excavate in the Carriageway or Footway, in positions as he may be directed by the Site Engineer carefully segregating the surface and foundation materials from other excavated materials in the order that, unless otherwise directed by the Site Engineer, they may be replaced ,as possible in their original order.

302.

Subsoil. (a) Excavated subsoil shall be protected from weathering action which would cause a damaging increase or decrease in the natural moisture content of the soil , leading to the formation of Voids and/or settlement after back filling. (b) The amount of excavated soil left exposed above ground overnight shall be kept to a minimum. (c) Normally a certain amount of subsoil, roughly equivalent to the volume of duct being laid is surplus and carted to tip. Subsoil which is damaged or unsuitable shall be selected for cartage to tip and, if required, suitable undamaged subsoil shall be brought from a newly excavated length, or imported to site to replace the subsoil carted away.

303.

Protection of Excavated Material. The type of protection to be undertaken is as follows: (a). Wet weather-excavated material shall be staked in a ridged heap and protected against rain by covering with polyethylene or other water proof sheeting. Where excavated materials cover a channel, boards, or alternatively a length of duct , shall be laid beneath the excavated material to maintain the water channel. Some of the excavated material shall be placed to acts as a dam to turn water away from any open excavation (b) Dry weather-subsoil being excavated and back filled during the same day needs no

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special protection unless it is in the form of large pieces of clay which may become baked hard , in which case they should be covered with smaller granular material from the subsoil or with polyethylene or other water proof sheeting. Any subsoil left exposed above ground over night or for longer periods should be protected with polyethylene or other water proof sheeting in order that natural water content is maintained. 304.

Timbering, etc., Except where otherwise provided ,the excavation shall include all necessary timbering ,sheet piling and shoring to maintain stability of the excavation.

305.

Objection If the Contractor shall object, in writing to any position selected as being likely to cause damage to adjoining property, the contractor shall give such modified directions as shall remove the objection or shall submit the matter to the Engineer, and if he deem & the objection to be reasonable the Contractor shall be relieved of liability for damage that may result from due and proper execution of the work in the position so objected to. In this event the contractor shall submit a proposal to specify the precautions that shall be taken to safeguard the property which gives rise to the objection to the Engineer.

306.

Mechanical Excavators. Any mechanical excavator must be capable of allowing for, and should be used in such a manner as to fulfil the requirements of Condition .301 and 312 of this specification in respect of segregation of materials and width of trench obtainable by using manual excavation. Mechanical AIDS. Any mechanical Aids must be capable of allowing for, and should be used in such a manner as to fulfill the requirements for ETISALAT general specification in respect of technique and the effect it may have to our PVC ducts and cables. If objected such equipment’s and tools shall not be used while cabling or rodding etc.

307.

Silencers Where pneumatic drills or other power driven road breaking appliance are used ,they shall be fitted with efficient silencing devices. The compressor and other power driven machines used for work shall be maintained in an efficient condition so as to avoid undue noise.

308.

Protection pavings. The contractor shall take all reasonable steps to prevent damage to pavings by his plant, and, to protect pavings from contamination by fuel and / oil from his equipment.

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309.

Pilot Holes and Trial Excavations. The contractor shall excavate in the carriage way or foot way in positions as he may be directed by the Site Engineer, such pilot holes or trial excavations as are necessary to meet the requirements defined in the Definitions Section of this specification.

310.

Side Shafts Where deemed necessary by the Site Engineer Side shafts shall be excavated alongside the trench as required, to negotiate obstructions.

311.

Supports. (a) The supports of an excavation shall be so designed and placed to prevent loss of ground from beneath adjacent paved surface and to permit, where ever possible withdrawal of such supports and consolidation of the space occupied. The prior agreement of the Site Engineer must be obtained and recorded in the Works Diary where the withdrawal of supports is considered to constitute a greater danger to the surrounding property than the subsequent void produced by rotting timber. (b). Existing mains and services shall be adequately supported by temporary slinging or strutting or where required by the Site Engineer, by brick or concrete piers. At the discretion of the Site Engineer where existing mains or services render compaction of the back fill beneath them difficult, the back fill shall be stabilized by mixing it with cement in the ratio of 10 parts soil to 1 part cement by volume.

312.

Width of Trench. In no case shall be the width of trench excavated be greater than is reasonably necessary for satisfactory execution of work. In unmade however, this requirement may be waived at the discretion of the Site Engineer, if the Contractor desires to use a wide excavator in such a position where a wide trench would not be detrimental to property or carriage way haunches. Diary entries shall show the agreed necessary width, the actual width being recorded as a note. The Site Engineer may not however, wave the requirements of Condition 301, 306 and the Filling-in and Restoration of Paving Section of this Specification

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313.

Standard Depths. Type of duct

Standard Depth of cover to top of upper most Barrel or for ducts laid in concrete, to top of concrete surround. In any Paving.

PVC single way and 2 way. Duct No. 54 D./ Duct No. 56/HDPE.

600 mm

PVC Multi way. Duct No. 54 D/HDPE (Over 2 and up to and including 20 ways).

600 mm

PVC Multi-way. 600 mm Duct No. 54 D/HDPE (Leads-in buildings and over 20 ways for street tracks). All other Types

As specified

Polyethylene Cable (a) Laid direct in ground. (b) Vehicular crossings . (c) Customers gardens or Cultivated ground.

600 mm or laid in duct as above.

Note: The standard depth of cover shall be followed unless directed otherwise by the Site Engineer, local authority or as per the site condition 314.

Change of Level. In passing from foot way to carriage way and vice versa ,or where ducts enter jointing chambers below standard depth, or in any other circumstances where it is necessary to change the level ,the bottom of the trench shall rise or fall gradually as the Site Engineer may direct.

315.

Trenches for Polyethylene Cable. (a) Excavation for the laying of polyethylene cable direct in the ground shall be carried out by the Contractor at such positions as may be directed by the Site Engineer. (b) The general conditions detailed in Condition.301-303 of this specifications shall apply. (c) The trench may be "V" shaped provided that (i) the base of the trench is of sufficient width to accommodate the cable or cables laid adjacent with minimum separation and (ii) it is of the required depth. (d) At points detailed on the schedule of work, or by the Site Engineer, where a cable has to cross a boundary wall from a foot way to a customer’s garden or curtilage and it is not possible to lay under the boundary wall ,the Contractor shall break through the wall and insert a short length of suitable duct. Any void around the duct shall be packed with concrete and the ends of the duct well rounded to prevent the possibility of damage to the

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cable. Tunneling.

316.

In no case shall the width or height of any tunnel be greater than is necessary for the satisfactory execution of the work Ground Water Lowering.

317. (a)

Where site conditions are such that water could be removed from the area by suction pumps working from sumps in to which the water drains ,the Contractor may, for his own convenience and with the Site Engineer consent use a de-watering system. The Site Engineer`s consent to use in the vicinity of an excavation of de-watering system involving riser pipes which draw water from the ground though fixed filters attached to the riser pipes will be subject to -

(i) The provision where necessary, of sand aggregates filters in the ground around the riser pipes. (ii) the absence of fine particles in the discharge after the first 20 minutes of pumping if, after this period of time ,fines are still being extracted with water, the riser pipes shall be individually withdrawn to facilitate a check of the ball valve and gauze screens in each well point head . The consent of the Site Engineer may be withdrawn at any time, if dewatering operation appears to be causing subsidence due to soil migration or shrinkage. (b) Where site condition are such that the use of de-watering equipment is agreed by the Engineer to be the only practical method of carrying out the work ,then ETISALAT will nominate a specialist firm or to the contractor having the knowledge and facilities to carry out dewatering operations in the area without liability to the Contractor. 318.

Blasting of rock. Excavation of rock encountered below ground during duct laying operations may be assisted by the use of explosives. The use of explosives will be allowed provided that. (a) Public and private property, above ground are in no way endangered (b) ETISALAT is satisfied as to the competence of the shot fires ability, which may require a trial demonstration. (c) The contractor takes all necessary precautions for the safety of members of the public, ETISALAT and Contractors own staff. (d) The cost to ETISALAT is no greater, in respect of trench width than would be the cost if the rock were removed without the aid of explosives. (e) The contractor has obtained all necessary permits from Government Bodies/authorities.

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(f) Contractor to obtain approval from ETISALAT before commencement of the work. 319.

Bunds. Shall be constructed in such a manner that they can contain water with a depth not exceeding 750 mm . The overall size will depend upon the volume of water to be contained and/or conditions imposed on ETISALAT by the authority and public health authority (See condition 57).

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DUCT AND CABLE LAYING SECTION INDEX

401.

Para Title

Para

Title

401 402 403 404 405 406 407 408 410 411 412 413 414

Drawings Line of Duct Duct Formations Laying of Ducts Duct leading into ETC Building Clearances from Other Services Clearances from Electricity Variation of Duct Duct in Tunnel Cutting and Bending of Duct Covering of Duct Rocky Soils Cleaning and testing

430 431 432 433 434 435 436 437 439 440 441-447 468-474 475

Alternative Method of Jointing & Laying.

415 416 417 418 419 426 427 428 429

Deferred Jointing Chamber Plugs Draw Rope Alignment Test for Disturbed Duct Scrap Materials. Duct No.54D (PVC) / General Trench. Formation Laying and Jointing

476 477 478 479 480 482 484 485 486

Bends. Variations. Backfill. Cleaning and Testing. Leads-in/ General. Duct Seal. Lead-in Track Caulking. Sealing of Conduits & Pipes. Duct No. 56 (PVC). Polyethylene Cable laying Slewing. and/ Lowering or Raising of Duct. Excavation. Strong Back Suspension Slewing Movement. Trench Bottom Irregularities Pulled Joints Inspection Testing

Drawing Nos Drawing Nos. CN 1065z, 1875, 1889, 1932, 10617, 10686, 10836 and 13207 refer.

402.

Line of Duct. The line of duct shall be kept as straight as possible.

403.

Duct Formations. The duct formation shall be either specified for the type of duct concerned or as detailed on the schedule of Work but subject to the discretion of the Site Engineer.

404.

Laying of Duct. Duct laying shall be done only in accordance with this Specification and such directions and instruction of the Site Engineer, which shall be closely followed. Duct laying may only be done in the absence of ETISALAT representative when prior permission has been given.

405.

Ducts leading into ETISALAT buildings.

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All ducts leading into ETISALAT buildings shall be both gas tight and watertight. 406.

Clearances from other Services. All types of ducts and cables laid direct in the ground shall be kept well clear of gas or water mains and service pipes, sewers and subways, manholes and joint boxes belonging to other undertakers. In order to admit the use of "Tapping" machines on gas and water mains, at least 300mm clearance shall be given, if practicable, to the other classes of plant mentioned above. In no case shall the clearance be less than 150mm and, where two sets of plant cross each other, the minimum vertical clearance shall be 150mm.

407.

Clearances from Electrical Supplies. Clearances of ETISALAT plant from Electricity supplies shall be as follows: (a) As much clearance as is practicable shall be given to the bases of trolley wire standards, electric lamp standards, traffic signal posts and other similar plant. Where it is impossible to provide a clearance of 150mm or more, a layer of concrete Quality "B" not less than 50mm thick, shall be placed between the two sets of plant. (b) High voltage single-core cables for electricity supply, electric tramway or electric railway systems, EXCEEDING 650 VOLTS, shall have a standard minimum clearance of 450mm. NO exception to this requirement is permitted. (c) High voltage multi-core for the same systems referred to in (b) above and EXCEEDING 650 VOLTS, shall have a standard minimum clearance of 300mm. In difficult cases a reduced separation will be permitted provided that where a separation of more than 150mm is impracticable, a layer of concrete Quality "B" shall be inserted between the two sets of plant whether they cross each other or not. The concrete shall not be less than 50mm thick, and of such width and length that at every point the shortest path found the concrete shall exceed 200mm. (d) Medium and low voltage cables for supply systems NOT EXCEEDING 650 VOLTS, shall have a standard minimum clearance of 50mm. Where the two sets of plant cross each other NO exception to this requirement will be permitted. At other points, where difficulties arise, a reduced clearance down to 25mm will be permitted in which case the space between the two sets of plant shall be filled with a layer of concrete Quality "B" The concrete shall not be less than 50mm thick and of such width and length that at every point the shortest path between the two sets of plant, round the concrete, shall exceed 75mm.

408.

Variation of Duct. In any case in which the Site Engineer so directs, the type of duct may be varied for the good and sufficient execution of the work.

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410.

Duct in Tunnel. Where duct is laid in tunnel, the heading and all spaces around the duct shall be completely filled with a well compacted damp mix concrete Quality "C" unless otherwise specified.

411.

Cutting and Bending of Duct. The Contractor shall do any necessary cutting of duct to the requirements of the work. The inside edges of all cut ducts shall be thoroughly rounded off or so dressed that there can be possibility of damages to cables.

411.1

Cutting, Bending and Sealing of Cables. The Contractor shall carry out any necessary cutting of Cables according to the requirements of the work as per schedule of the work or as directed by the Site Engineer, however site measurements should be carried out to prevent wastage of cables / short lengths. Only purpose designed equipment capable of providing a gradual curve shall be used for the bending/ cutting of cables.

412.

Covering of Duct. All duct not laid in concrete, shall be covered by a layer of earth, free from stones, and hand punned to a thickness of not less than 100mm, unless otherwise specified.

413.

Rocky Soils. In rocky or stony soils, earth free from stones shall be spread over the trench bottom and rammed to afford a bedding approximately 100mm thick on which to lay the duct, as directed by the Site Engineer. In such cases 100 mm of extra excavation of the trench will be necessary to achieve the required depth of cover.

414.

Cleaning and testing. (a) On completion of the duct line (including compaction of the backfill) between any two jointing chambers, or sites thereof, a cylindrical brush and an Iron Test Mandrel shall be passed once through each "way" to test the duct and to remove any foreign matter which may have entered. The size of the test mandrel and brush shall be advised by ETISALAT. Contractor shall provide brush and mandrel for the testing as advised by Site Engineer without additional cost to Etisalat. The mandrel shall follow the brush to minimize possible scoring or breaking of the duct. (b)

For details of the additional test required for ducts when the building of a jointing chamber is deferred until after the completion of a section of duct see Condition 415 of

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this Specification. (c) Where cable damage is suspected the contractor shall afford all reasonable assistance to test the cable and shall arrange the labour required for the testing operations. (d) All tests shall be carried out in the presence of the Site Engineer, and if any obstruction or other defect be discovered it shall be rectified forthwith to his satisfaction. 415.

Deferred Jointing Chamber. When the building of a jointing chamber is deferred until after the completion of a section of duct included in the work each "way" shall be tested, on completion of the jointing chamber, by means of the mandrel and brush specified for the particular duct. A visual check shall first be made by the Site Engineer, with the aid of a torch or similar means of illumination, that no foreign matter or materials are likely to be pushed up the duct. All such test shall be at the Contractor's expense.

416.

Plugs. A suitable plug, approved by ETISALAT, shall be inserted at the end of each "way" of a duct route to prevent the ingress of water and/or other foreign matter, until all work has been completed on that section and the length tested and accepted by ETISALAT. In case of Road crossings, and dead ends, the plug shall be left buried ensuring the rope properly tied to the plug.

417.

Draw Rope. A draw rope approved by ETISALAT, shall be threaded through and left in every "way" following duct laying operations and satisfactory tests. Jointing together lengths of draw rope to make up the necessary length between jointing chambers shall be carried out as directed by the Site Engineer and in accordance with Drawing CN 13207. Draw rope shall not be joined for the purpose of conserving lengths shorter than 50 meters.

418.

Alignment Test of Disturbed Duct. When jointing chambers are provided on an existing route or when any disturbance takes place which may affect the alignment of duct, and the Site Engineer so directs, a test mandrel and brush of the appropriate dimensions shall be drawn through each of the spare "ways".

419.

Scrap Materials. All the scrap Ducts, Draw Ropes; recovered iron furniture not reusable shall be delivered to the disposable location as approved by the Authorities. The quantity thus disposed shall be pre-certified by the Site Engineer for the purpose of reconciliation.

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Frames and or covers and other reusable iron items shall be returned to ETISALAT stores, if not reused on the same site duly cleaned. PVC DUCT - DUCT NO. 54D 426.

General. Duct No. 54D is manufactured from polyvinyl - Chloride (PVC). It is supplied in 6.0 meters effective lengths, has an internal diameter of 90mm and a nominal wall thickness of 3.25mm. Each duct length has a tapered socket at one end which will accept the barrel of the duct. Couplings, Duct, 54A, 300mm in length are also available for use with short lengths of duct which have no socket. Couplings Duct, 54A shall not be used for duct leading into buildings.

427.

Trench. The Trench shall be excavated to the required width and depth; the trench bottom shall be free from stones, level and well punned. The duct shall be laid at standard depths (Condition 313 refers) unless otherwise specified.

428.

Formations. Duct No. 54D may be laid as a single duct or in multi-way formation as follows:(a) Up to and including 9 ways in rectangular formation (b) Over 9 ways rectangular formations with concrete surround thickness on sides shall 100 mm and on Top shall 150 mm and shall be paid as per schedule of rates. (c) Where required, the bottom side of the Multi way Duct may be R/F concrete for 150 mm thick. This shall be considered as extra work and paid for as per schedule of rates.

429.

Laying and Jointing.

(a)

Single way

(i)

The open starting end of the trench shall be blanked off with a board or boards, to act as an anvil against which the duct can be driven home. The duct shall be recessed into the wall of jointing chambers 10mm from the inside surface. The surface of the duct shall be roughened with glass paper or sand paper for its length in the jointing chamber wall. (ii) The duct shall be laid on the trench bottom with the socket towards the duct layer; the spigot end and the inside of the socket of the ducts to be jointed shall be thoroughly cleaned with a dry rag. (iii) The spigot end of the duct shall be offered to the socket initially pushed in by hand and then to achieve proper engagement a suitable wooden batten is placed across the remote socket and tapped with a hammer. Full engagement should be ensured. Occasionally, due to variations in size, this cannot be achieved, in which case, excessive force must not

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be exerted after a tight joint has been effected. (iv) When jointing short lengths of duct together with a coupling, Duct No. 54A, BOTH SPIGOT ends and the inside of the Coupling shall be thoroughly cleaned with methylated spirits applied with a clean rag. The spigot ends should be given a liberal coating of P.V.C. cement and then fitted into the coupling. This operation involves using toxic and inflammable materials (see Condition 702). (b) Multi-way up to and including 9 ways (i) The preparatory work and jointing shall be as outlined in Condition. 429 (a) of this Specification. (ii) The first layer of ducts shall be laid on the prepared trench bottom so that their outer surfaces touch each other and a minimum gap of 100mm remains between the outside ducts and the sides of the trench timbering where used. Wooden stakes or an approved alternative shall be driven into the ground at 3 metre intervals along the trench to keep the ducts in the correct position. Earth, free from stones (see Condition 104) shall be placed to fill the spaces between the ducts and the next layer of duct when the latter is bedded down. The second and subsequent layers of duct shall be laid between the wooden stakes so that they are vertically above and then bedded down to touch the ducts in the layer below, the spaces between the ducts being filled in the same way with earth, free from stones, (see Condition 104). The joints shall be staggered so that no joint touches any other point. (iii) At approximately 5 metres from the jointing chamber at each end of the track, the duct formation shall open out to provide a gap between each duct, both vertically and horizontally, of 25,, using, spacers, Duct No.2. Over this 5 meters section all spaces between the ducts and the trench wall shall be filled with well compacted earth, free from stones (see Condition 104), as directed by the Site Engineer. (c) Multi-way over 9 days, Drawing CN 10686 refers :(i) The preparatory work and jointing shall be as outlined in Condition 429 (a) of this Specification. (ii) The first layer of duct shall be laid on the prepared trench bottom so that their outer surfaces touch each other and a minimum gap of 100mm remains between the outside ducts and the sides of the trench, or trench timbering where used. Mild steel bard, 12mm diameter and of the required length shall be driven into the ground at 1.5 metre intervals along the trench to keep the ducts in the correct position. The second and subsequent layer of duct shall be laid between the mild steel bars so that they are vertically above and touching the ducts in the layer below. The joints shall be staggered so that no joint touches any other joint. On completion of the assembly of the duct nest, 6mm diameter mild steel bars shall be horizontally across the uppermost layer of ducts and tied to the vertical bars. (iii) Where the total number of layers of duct in any one formation exceeds 8 and the number ESS LPD VERSION-1(2012)

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of ducts in each layer exceeds 2 the following shall apply. Between the two layers of duct midway, or approximately midway, from the top and bottom of the duct nest and intermediate layer of reinforced concrete, 100mm in depth and with 12mm mild steel reinforcing bars conforming to the layout of reinforcing in the top cover detailed in Drawing CN 10686, shall be placed across the duct nest, the additional reinforcing required by this sub-paragraph shall not be required in the 5 meter sections detailed in subparagraphs (iv) and (v) below. (iv) At approximately 5 metres from the jointing chambers at each end of the track, the duct formation shall open out to provide a gap between each duct, both vertically and horizontally of 25mm. Banks of spacers, Duct No.2 shall be placed at 325mm and 1324mm from the jointing chamber wall to provide this spacing. Each spacer bank shall enclose all the ducts except those in the bottom layer on which the spacer bank shall rest. Where sub-paragraph (iii) applies, the 100mm intermediate layer shall be reduced over the 5 metre sections to provide the required 25mm spacing at the jointing chambers. (v) Where the total number of layers of duct exceeds three, concreting of spaced formations shall be in stages such that the number of layers of duct laid and concreted at each stage shall not exceed three. The concrete shall be brought to a level, which shall not interfere with laying of subsequent layer of duct and spacer. (vi) Concrete Quality "D" made with Sulphate Resisting cement shall be used throughout and shall have a slump of 120 mm. The concrete shall be evenly placed around the duct to give a finished minimum thickness of 100mm on both sides and to a depth of 150 mm above the top layer of ducts. Care must be taken to ensure that each batch, as it is placed, is properly compacted without creating unbalanced side thrust against the ducts. Each batch shall be vibrated using a vibrator having a maximum diameter of 51mm, the poker shall be lowered into the concrete between the wall of the trench and the outside of the duct nest and shall not touch the duct. In spaced formation sections care must be taken to ensure that the gaps between the ducts are properly filled with concrete, the final layer of concrete shall be thoroughly trowelled. The Contractor may use ready mixed concrete for construction of the duct surround. (vii) With formations of four or more ducts wide, mild steel reinforcing bars conforming to Drawing CN 10686 shall be placed and wired in position before placing concrete over the uppermost ducts of the completed nest. (viii). In the case of column entry manholes, the duct formation shall open out to enter the manhole as shown on the appropriate manhole drawing and at right angles to the entry wall. The distance over which the transformation is made shall be no greater than is necessary to satisfy the 5 meters minimum bending radius for Duct No 54D. The ducts shall be secured in position during concreting either with spacers, Duct, Nos. 2 and 3 built up to the required centers or by reinforcing rods which may be encased in the concrete, the volume between the separated duct formations shall be excavated and filled with concrete of the same quality as that surrounding the duct formations. (ix) Where required the Road crossings up to 9W shall be encased in concrete as required by the authorities and the concrete shall be paid as extra as per schedule of rate. ESS LPD VERSION-1(2012)

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(x). The road crossings shall be extended up to the ETISALAT reservations or to a point as directed by the Site Engineer at the approved depths, if required. (xi). Where required, the ducts falling in carriageway/footway tiled area to be encased in concrete, as stipulated by the concerned authorities and shall be paid as per schedule of rate.. 430.

Alternative Method of Jointing and Laying. Provided space permits. Duct No 54D may be jointed above ground and fed into the trench from one end. The leading end of each duct way being guided into position using a suitable hooked tool made from 6mm diameter mild steel reinforcing bar.

431.

Bends. Normally bends are not recommended since the duct is sufficiently flexible to provide a minimum bending radius of 5 meters. Tighter bends should not be attempted otherwise kinking of the duct may result.

432.

Variations. Any variation of duct formation and/or depth shall only be carried out with the prior agreement of the Site Engineer.

433.

Backfill. (a) Back-filling of trenches where Duct No. 54D has been laid to Para 429 (a) and (b) shall be carried out in accordance with the Filling-in and Restoration of Paving Section of this Specification. (b) Where Duct No. 54D has been laid to Condition 429 (c) the end shuttering and trench supporting timber, if used, shall be removed not less than 12 hours after the concrete has been placed. Back-filling of the trench, in accordance with the Filling-in and Restoration of Pavings section of this Specification, shall not be carried out until a further 48 hours have elapsed.

434.

Cleaning and Testing. The iron test mandrel to be used for testing Duct No 54D shall be 240mm long 83mm in diameter. The cylindrical cleaning brush shall be 95mm in diameter. (see also Condition 414).

435.

LEADS-IN General. (a) Normally, the duct seal and first 1.5 metre of Duct No.54D leading into a new building will be included to the construction of the building. The remaining lead-in duct shall

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then be connected to the "starter" duct and laid to the exchange jointing chamber in accordance with Condition 437 and Drawing CN 10836. (b) In the case of existing buildings, and occasionally new buildings, an opening will be provided into which a duct seal shall be constructed in accordance with Condition. 436 prior to the laying of the remaining lead-in duct which shall be in accordance with Condition. 437 and Drawing CN 10836. Alternatively, where specified, individual holes 125mm dia, shall be diamond drilled in the wall at 150mm centers. Each gland and appropriate length of duct shall be assembled in accordance with Condition 436 (b) and grouted into the holes, to within 25mm of the wall surfaces as shown on Drawing CN 10836. The remaining recesses shall be filled with compound No. 23 (Condition. 440 refers). 436.

Duct Seal. (a) A duct seal, complete with glands or other method, shall be constructed in accordance with Drawing CN 10836 and the following sub paragraphs prior to any duct laying operations. A duct seal, with glands or other methods installed shall be restored after the new cable installation and shall be to a satisfactory level to prevent leakages (b) The spigot end of 1.5 metre lengths of Duct No. 54D shall be thoroughly cleaned with methylated spirits applied with a clean cotton rag. Jointing adhesive (P.V.C. Cement) shall be applied liberally to the full circumference of the outside end 100mm of the spigot with a clean rag. The spigot end shall then be pushed into the back of a Gland, Caulking No. 2. Surplus adhesive shall be wiped around the gland end to form a sealing fillet of adhesive; additional adhesive shall be applied, if necessary to form this sealing fillet (see also Condition 701). (c) The external surface of the assembled duct and gland shall then be cleaned with methylated spirits and coated with Compound No 21 into which a 3:1 mixture of dry sharp sand and cement shall be pressed; a small area being treated at a time because of the speed with which Compound No 21 dries out. These applications shall continue until a 50mm length of the gland and a 250mm length of the duct adjacent to the joint have been completely coated. (d) Two plywood templates, each a minimum of 25mm thick and at least 150mm larger all round than the duct opening, shall be drilled with 106mm diameter holes at 130mm centers to match the number of ducts forming the lead-in. The template for the gland end shall be positioned on the inner wall of the cable chamber/trench, reinforced and braced as necessary to ensure that it will remain flat and in position during the subsequent operations. NOTE : Where the lead-in is angled, the spacing’s of the centers of the holes in the templates must be adjusted to provide a separation of approximately 35mm between ducts.

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(e) The jointed glands shall be fitted to the template and secured, each with two Collars, Gland, Caulking, with their chamfered ends facing each other, and a lack nut (Drawing CN 10836 refers). Where the lead-in is angled, the Contractor will be supplied with the appropriate angled collars information of which is given in the following table:-

(f)

Collar Gland Caulking No.

Angle

Number required per Gland

2

50

2

3

100

2

4

150

2

5

Straight

2

As the ducts are fixed to the template they shall be temporarily supported so that no strain is placed on the gland/duct joint. When all the ducts have been secured in position, the second (outer) template shall be positioned 50mm along the socket, reinforced and braced. The Contractor shall ensure that all ducts are parallel and except for angled leads-in, at right angles to the templates and so, maintained during the subsequent concreting operations.

(g) Concrete Quality "D", having a slump of 50mm, shall then be carefully placed to completely fill the interstices of the duct nest and to provide a minimum cover of 150mm on the top sides of the duct nest. The concrete shall be placed in 'lifts' no greater than 2 ducts high and each 'lift' shall be well compacted by using a vibratory poker (maximum diameter of 50mm) on each side of the duct nest. (h) When at least 2 days have elapsed after placing the concrete, the template shall be removed and the concrete examined. Small voids shall be filled and rendered flush with the existing face providing they do not extend beyond two adjacent ducts or do not exceed 50mm in depth. If larger voids than this exist, the concrete will be regarded as substandard and must be completely removed and replaced. 437.

Leads-in Track. (a) Duct 54D shall be used for all lead-in sections between the building and the exchange jointing chamber. The duct shall be gastight and watertight, and, irrespective of the number of ways, shall be laid in accordance with Condition 429 (c) to 434, terminating with duct sockets recessed 10mm from the inside face of the jointing chamber wall. Additionally prior to jointing, the spigot and socket of each duct shall be thoroughly cleaned with methylated spirits applied with a clean cotton rag. The full circumference of the outside end 100mm of the spigot shall then be liberally coated with jointing adhesive (PVC Cement) using a clean cotton rag and the duct joint shall be made as quickly as possible (Condition.429 (a) (iii) refers). Finally, the surplus and, if necessary, additional adhesive shall be wiped around the end of the socket and adjacent surface of the duct with a clean cotton rag to form a continuous sealing fillet.

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(b) Plentiful supplies of clean, dry cotton rags shall be available and, in inclement weather protection for the jointing operations shall be provided, e.g: a temporary awning. (c) The Lead-in ducts between the Duct seal and the 1st Manhole (Exchange Manhole) shall be encased in concrete. 439.

Caulking. On completion of the cleaning and testing of the lead-in duct route and acceptance by the Site Engineer, each duct way shall be caulked in the following manner. (a) Drill two 6mm diameter holes, 12mm from the edges, and on the same diameter line, of a Disc Gland Caulking. (b) Tie a knot approximately 200mm from the end of the draw rope (a draw rope is left in each "way" following completion of the duct route Condition. 417 refers), pass the end of the draw rope through one hole and back through the other hole and tie a further knot; thus leaving a loop which can be used to remove the inner disc. (c) Push any surplus draw rope into the duct and place the disc i the gland against the internal shoulder or R/F concrete as directed. (d) Tightly pack the gland with thoroughly worked Compound No.16 or approved alternative, and slightly overfill. (e) Place a second disc into the recess of the end cap and screw onto the gland so compressing the compound. Additional compound may be required after the original has been compressed to ensure that there are no voids in the compound between the discs. (f) At the exchange jointing chamber, the Contractor shall repeat the procedure in (a)(c) above, and tightly pack the socket with thoroughly worked Compound No.16, or approved alternative. The compound shall be compressed with a second disc until this disc is released approximately 3mm into the socket.

440.

Sealing of Conduits and Pipes Small conduits and pipes into Subscriber's premises, call office, kiosks, posts etc., shall be sealed by pressing a clean rag into the aperture and facing off with a layer of synthetic rubber. A 25mm depth of rag and a 10mm depth of rubber shall be used. (Silicone Sealant A, or an equivalent material, shall be used for this purpose)

441.

PVC DUCT - DUCT NO. 56 General. Duct No. 56 is manufactured from polyvinyl-Chloride (PVC) It is in 6.0 metre effective lengths, has an internal diameter of 51mm and a nominal wall thickness of 1.55mm. Each duct length has a tapered socket formed at one end which will accept the normal

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barrel of the duct.

442.

Trench. The trench shall be excavated to the required width and depth and the bottom shall be free from stones, level and punned. The duct shall be laid at standard depths (Condition 313 refers) otherwise specified.

443.

Laying and Jointing. (a) The duct shall be laid on the trench bottom with the socket towards the duct layer; the spigot and the inside of the socket of the ducts to be jointed shall first be thoroughly cleaned with a dry rag. (b) The spigot end of the duct shall be offered to the socket, initially pushed in by hand, and then to achieve proper engagement a suitable wooden batten is placed across the remote socket and tapped with a hammer. Full engagement should be ensured, occasionally, due to variations in size, this cannot be achieved, in which case, excessive force must not be exerted after a tight joint has been effected. (c) Alternatively, the duct may be jointed above ground and lowered into position on the trench bottom where this is more convenient. (d) All spaces alongside the duct shall be filled with earth, free from stones and hand punned to a compacted thickness of not less than 75mm above the top of the duct barrel.

444.

Bends. The duct is sufficiently flexible to provide a minimum bending radius of 9.5 meters. Tighter bends should not be attempted otherwise kinking of the duct may result. Bends, Duct No. 56 (900229mm radius) and Bends Duct No. 56A (900622mm radius) are only for termination purposes at poles and small buildings respectively.

445.

Variations Any variation of duct formation and/or depth shall only be carried out with the prior agreement of the Site Engineer.

446.

Backfill. Backfilling of the trench shall be carried out in accordance with the Filling-in and Restoration of Paving Section of this Specification.

447.

Cleaning and Testing. The iron test mandrel to be used for testing Duct No. 56 shall be 216mm long and 43mm in diameter; the cylindrical cleaning brush shall be 57mm in diameter (see also Condition. 414).

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HIGH DENSITY POLYETHYLENE (HDPE) DUCT LAYING SECTION. INDEX Para Title 448. GENERAL 449. LAYING of HDPE Ducts 448. General . The high density polyethylene (HDPE) DUCT, are used as an alternative of PVC Duct 54D and or Duct 56, for the construction of underground duct system for fiber optic and copper cables for long distance, junction and Access networks. HDPE Ducts are generally available in standard drum lengths max 1000 meters, and in future will be available in drums or in coils of suitable lengths. 449. LAYING of HDPE Ducts The HDPE ducts can be buried directly or being flexible, can be installed in main ducts very similar to cables pulling in ducts, using standard cable drum trailers, cable accessories and winches. The HDPE Ducts can either be terminated at all the manholes and joint boxes or can be run through more than one Joint Box or Manhole without cutting, depending upon the requirement. A HDPE Ducts is never to be cut flush with the manhole or Joint Box wall. It is to be cut in such a way that a tail of about 10 cms is left beyond the end of the main duct. The HDPE Ducts can be connected with each other in the manholes or joint boxes or even inside the trench/duct by using Couplers. The thickness of the Coupler is so small that it does not greatly increase the overall diameter of the HDPE Ducts. The coupling used to be a pressure-tight joint. The coupling can withstand a pressure upto 10 Bar and as such can be used to joint the HDPE Ducts where cable installation is being done by employing cable blowing-in technique. The HDPE Ducts must be sealed at all manholes / joint boxes by using the plugs

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POLYETHYLENE CABLE LAYING 468.

Polyethylene Cable

(a). The cable will be supplied by ETISALAT or by the Contractor on drums (which are returnable to ETISALAT stores) together with drum spindles and lifting jacks. (b) The drum shall be set up at static positions and the cable drawn off and laid into the trench. Alternatively, the drum may be set up on a mobile vehicle and the cable paid off along the trench. The method employed independent upon the circumstances, obstructions and access to the trench. (c) In rocky or stony soils, earth, free from stones, rammed to form a 100mm layer both below and above the cable shall be provided as directed by the Site Engineer. 469

Moleploughing. The Contractor may use mole ploughing techniques in grass or unmade ground, dependent upon the nature of the sub-soil position of other services, access to line of route, the depth at which the cable is laid, the use of approved equipment and the Site Engineer agreement. The Site Engineer agreement will not unreasonably be withheld.

470.

Crossings At carriage way crossings and vehicular crossings of the footway, polyethylene cable shall be laid directly in the ground or drawn into duct, as directed by the Site Engineer. The Contractor may be requested to draw Etisalat distribution cable into duct already in use. Further a spare Duct 54 D or Duct 56 or a polyethylene duct may also be considered to be laid in line with the cable for maintenance purposes.

471.

Terminating Points. A sufficient length of cable for terminating purposes will be coiled, and the coil shall either be be left/ buried in the ground or fastened to a pole or wall, as directed by the Site Engineer. In the latter case, the cable coil shall be fastened at a point above a length of steel or PVC Capping or Polyethylene Duct. Where Capping, or Polyethylene Duct or cable is fixed to a wall, the wall shall be plugged to take the fixings (Condition 473 refers).

472.

Joint Marker. A joint marker will be installed by the Contractor at each buried joint or terminating point as directed by the Site Engineer.

473.

Capping, Steel or PVC.

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Steel or PVC capping will be supplied together with Nails, Bonding and Washers, No. 19, and will be fitted by the Contractor in positions determined by Site Engineer. 474.

Cutting and Sealing All cable cutting, temporary sealing of cut ends and jointing will be carried out by contractor. Where two or more cables are to be jointed, a short length of cable will normally be overlapped and laid along the line of trench.

475.

SLEWING AND/OR LOWERING OR RAISING OF DUCT Excavation. (a) The size of the excavation for slewing and/or raising a duct line shall be as directed by the Site Engineer. (b) Where lowering only is necessary the duct line shall be suspended and the required excavation taken out down the side and under the duct line. When this method is impracticable the duct line shall be slewed and raised or lowered temporarily as required by the Site Engineer for a distance which is just sufficient to allow access for carrying out the excavation. (c) With the exception of making slight adjustments to the duct line after slewing and lowering, the duct line shall not be removed in any way without adequate reinforcement in the form of a strong back being firmly lashed to it.

476.

Strong back. (a) The strong back shall be lashed to the duct line, with both ends of each duct firmly held, using separate lashings or a continuous rope. The lashings shall be tightened, to the satisfaction of the Site Engineer. (b) Any forces which it is necessary to apply to the duct line to move it in any way shall be applied not directly to duct line but to the strong back lashed to it. Such forces shall be applied at points whose spacing is sufficiently close to keep the bending of the duct line and strong back between the points to a negligible amount.

477.

Suspension. When the duct line is to be lowered, the complete length shall be suspended from the suitable beams or tripods and/or approved winching devices spanning the excavation. When the duct line is to be slewed whilst suspended in this way, the suspending ropes shall be fastened to sling poles resting on the supporting beams and running parallel to the duct line strong back and free to move across the beams. All suspending ropes shall be so arranged that the duct line can be raised or lowered as required, smoothly and

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continuously, and can be tied off firmly at any stage. 478.

Slewing Only. When the duct line is to be slewed only, it may be moved without suspending it, provided that: (a) The surface across which the duct line is to be slid shall be reasonably level and regular, made so if necessary by setting boards in the surface. (b) The strong back shall be firmly lashed to the side of the duct line. (c) The moving force shall be applied to the strong back by rope, jack or other method to allow the duct line to be moved smoothly and without jerking.

479.

Movement. The slewing and /or lowering of the duct line shall be carried out by making a succession of very small movements of the duct line, each made progressively along the affected length. The curvature of the duct line at any intermediate stage between the initial and final positions shall not exceed the deviation limits laid down for laying new duct of the same type.

480.

Trench Bottom. Prior to finally placing the duct the trench bottom shall be prepared in the same way as is specified for duct laying.

482.

Irregularities. After the duct line has been finally lowered into its required position and the strong back has been removed, any irregularities and bore crossings in the general line of the ducts shall be corrected at the direction of the Site Engineer.

484.

Pulled joints Where, following cabling operations and or slewing and/or lowering or raising operations, a duct joint or joints have pulled apart, the contractor shall promptly report the case to the Etisalat for the assistance and to undertake the following rectification measures. The short lengths of ordinary or split duct may be inserted in the duct line as directed by the Site Engineer. Where cable damage is suspected the contractor shall afford all reasonable assistance to test the cable and shall arrange the labour required for the testing operations.

485.

Inspection

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After all operations are completed, the joints of all ducts shall be inspected to ensure that they are forming an effective seal, any defects shall be made good to the satisfaction of the Site Engineer. Inspection. After all the cabling operations are completed, the existing cable joints along the route shall also be inspected, to be ensured that they are free of leaks or damages. The contractor shall be responsible for any damages caused during the installation works. Contractor shall maintain Proper records for operations to avoid regular or repeated faults/mistakes.

486.

Testing. All spare bores of the duct line shall be rodded and roped and/or cleaned and tested as specified for the particular duct concerned shall be Paid as per schedule of rates.

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JOINTING CHAMBERS SECTION INDEX Para

Title

Para

Title

501 502 503 504 505 506

513 514 515 516 519 520

Concreting Joints in Concrete Concrete Quality & Compaction and Tamping of Concrete Wet Situations Shuttering

507

General Types of Jointing Chambers Drawings Variations Clearance of Ducts Protection of Cables and Associated Equipment Duct Entries Into Existing Structures

521

Curing Times

508

Duct Entry

534-536

509 510 511 512

Jointing Chamber fittings Iron and Steelwork Recovered Material Sumps

538 539 541

Frames & Covers, Carriage way Double Triangular Concrete Surround Joint Boxes No. 23 Joint Markers & Marking Posts Cabinets, cross Connection

501.

542-544, 546,547

General. Jointing chambers shall conform to the standard drawing/s and/or other drawing/s, as specified unless Condition. 504 applies. Manholes having less than 2000mm head room shall not be normally accepted. (a). Types of Manholes.

502

Code MR 2*

Drawing No. CN 1938

MRT 7 MRT 9

CN 1955 CN 1957

*

Code MR 4 MRT 8*

Drawing No. CN 1953 CN 1956

These manholes have a range of internal heights. (b) The standard types of joint boxes with the code references employed, are as follows:

F & C C/W No. 4 No. 2 No. 3

503

CODE JRC 4 JRC 12 JRC 14

DRAWING NO CN 1815Z CN 1709Z CN 1690Z

Drawings.

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In addition to the drawings listed above, the following CN Drawing Nos. also refer; 1153, 1464, 1750, 1814, 13152. and EP-1012, EP-1013 & EP-1020 etc. 504.

Variations. The presence of unforeseen obstructions in the ground, or adverse ground conditions, may necessitate the construction of a type other than that specified, or a modification of one or more of the dimensions stipulated on the relevant drawing. The Contractor shall be advised of any modifications to the drawings and/or schedule of Work by the Site Engineer and such modifications will be confirmed by ETISALAT in writing. The Contractor shall not carry out modifications without the approval of the Site Engineer.

505.

Clearance of Ducts. Ducts shall enter manholes as shown on the relevant drawings or as directed by the Site Engineer, unless otherwise required by the drawings or the Site Engineer, the ducts shall enter the manholes at such depths as will ensure a minimum clearance of 450mm (min) to 750mm (max) above the duct to the roof.

506.

Protection of Cables and Associated Equipment. During the cutting of duct entries into existing structures, irrespective of whether vibration-free methods are used, or during the demolition and rebuilding of jointing chambers, the Contractor shall take such measures as the Site Engineer may direct to protect cables and associated equipment. Such measures may include any or all of the following requirements:(a). All movement of cables shall be carried out under the direction of the Site Engineer. (b) A ladder shall be provided and used by the Contractor for access into and out of manhole excavations. Under no circumstances may cables, joint and associated equipment be used for climbing, standing, or sitting on . (c) Sufficient pumping capacity shall be made available and operated to ensure that when cables are removed from their bearers they shall not be immersed in water at any time. The responsibility of keeping cables and joints dry will pass to ETISALAT when ETISALAT commences checking and / or testing the cables. (d) All cables shall be protected at duct entries by shielding as necessary against mechanical damage and by packing with foam rubber to act as a cushion when any movement occurs. (e) During demolition of the roof of a manhole, the Contractor shall erect a deck of timber between the cables and the roof of the manhole to protect ETISALAT plant from falling debris in the following manner.

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(i) A minimum of four screw jacks shall be evenly spaced and placed horizontally between the uppermost cables and the underside of the roof. A 25mm recess in each wall is necessary for the screw jack plate; UNDER NO CIRCUMSTANCES shall friction joints be used between the screw plate and wall. Lengths of poling boards or other similar timber shall then be placed over the screw jacks to completely protect cables and/or other equipment from falling debris. (ii) Alternatively, the Contractor may use vertical and horizontal timber supports as follows: a minimum of three 225mmx75mm timber uprights shall be evenly spaced against each long wall of the manhole with 225mmx75mm timber shall be placed horizontally on top of the uprights and secured, and between the uprights at the bottom; all positions to be wedged and blocked to the satisfaction of the Site Engineer. Lengths of poling boards or other similar timber shall then be placed on top of the horizontal supports. (iii) When the manhole roof and walls have been demolished down to the level of the timber decking and all debris removed, the cables and any other equipment shall be suspended from the surface to the satisfaction of the Site Engineer (iv) Cables and joints and other equipment shall be protected by dropping (not tying) with several layers of sacking while the timber decking is being erected and dismantled, and during the demolition of the remainder of the walls. (f) During rebuilding operations cables shall be supported on wooden benches with cushion of sacking or similar material once the floor has been laid and the concrete allowed to set. 507.

Duct Entries Into Existing Structures. (a) General - structures such as jointing chamber, Telephone Exchanges, Repeater Stations and other similar buildings, which contain cables and/or equipment liable to damage by vibration, shall have all new duct entries cut with substantially vibration free cutting equipment. (b). Approved Methods. Where vibration-free cutting equipment is necessary as specified on the schedule of Work or as directed by the Site Engineer the Contractor shall only employ Diamond Impregnated or Rotary-Percussion drilling methods, PNEUMATIC TOOLS, SLEDGE OR CLUB HAMMERS AND OTHER TOOLS MUST NOT BE USED. Any alternate method by the Contractor will be employed ONLY after approval by the Site Engineer. NOTE: The Contractor may use the services of a firm specializing in diamond drilling on a sub-contract basis. (c) Position of Entry - this will be as specified in the Schedule of Work or as directed by the Site Engineer. Any departure from this position must be agreed with the Site Engineer prior to the commencement of work. (d) Protection - the Contractor shall carry out such protection of cables and/or equipment, prior to drilling operations, as directed by the Site Engineer.

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(e) Reinforcement - where the method used requires that reinforcing bars are cut as a separate operation bar-croppers or hacksaws only shall be used. Gas cutting equipment must not be used. (f)

508.

Anchor Irons - where possible new duct entries should be positioned at least 300mm from any existing Anchor Iron. Where this clearance cannot be obtained, the anchor iron concerned shall be sawn off. Gas cutting equipment must not be used. Duct Entries. The concrete around all ducts where they enter jointing chambers shall be carefully flushed up and rendered in cement mortar.

509.

Jointing Chamber Fittings. Anchor Irons and other fittings shall be fixed as and where shown on the relevant drawing, or in such other position as the Site Engineer.

510.

Iron and Steel work. (a) All iron and steel work, except as in Condition 510 (b), supplied by the Contractor and which has not been galvanized by an approved method, shall be free from mill scale and given one coat or red lead and oil after delivery, and two coats of an approved bituminous paint after fixing. (b) Any UN galvanized iron or steel which is to be embedded in concrete shall be free from mud, oil, loose rust, loose mill scale, grease or any other substance which can be shown to affect adversely the steel or concrete chemically, or reduce the bond. Normal handling prior to embedment in the concrete is usually sufficient for the removal of loose rust and scale from reinforcement. (c) All reinforcement in the floor, roof and shaft shall be secured together by means of approved wire ties sufficient to prevent displacement of the reinforcement during the placing and compaction of the concrete.

511.

Recovered Material. After the demolition or alteration of existing jointing chambers, any recovered serviceable material shall be delivered to a nominated ETISALAT site, or disposed of as instructed by the Site Engineer

512.

Sump. Where a sump is provided the floor shall have a slight fall thereto.

513.

Concreting.

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Concrete, when placed and if subject to rapid drying out by sun and/or wind, shall be protected to prevent it becoming dry during the seven days following placing. 514.

Joints in Concrete. (a) Construction joints shall be provided where shown on the relative construction drawing. A minimum of 12 hours shall elapse between the constructions stages thus indicated. The construction joint shall be effected by cleaning the existing concrete, wetting it and rendering with a 5mm layer of well trowelled cement mortar before the new concrete is placed in position. (b) Whenever possible, concrete walls shall be completed in one operation. Where this is not practicable, construction joints shall be straight and well-furnished as shown in the drawing. Before concrete is resumed, the surface of concrete on first side of joints is to be thoroughly cleaned and the surface removed so as to expose the aggregate. This may include proper hacking of the surface if the concrete is hard enough. The previous concrete surface is then to be treated with a SBR based bonding compound as recommended by the manufacturer for such applications, before placing any concrete against it. The new concrete shall be well compacted (Condition. 516 refers) but care shall be taken during its placing close to the joint. Such construction joints shall be cited at least 150 mm from any anchor iron position.

515.

Concrete Quality and Finish. (a) Except where the quality of concrete is detailed on the construction drawing, all concrete used for the construction of jointing chambers shall be Quality "A" as specified in the Quality of Materials Section of this Specification. No unauthorized repair shall be allowed to improve the finish of the concrete surface. This shall be allowed only with the prior approval of the Site Engineer with approved materials only. (b). At his discretion, the Site Engineer may require test cubes to be taken of any batch of site mixed concrete used for jointing chamber construction. Where ready mixed concrete is used, the Site Engineer will require test cubes to be taken on the following basis:Joint Boxes

A minimum of one test cubes from any batch of concrete.

Manholes

A minimum of three test cubes from each batch of concrete.

PS: All test cubes shall be clearly marked for identification. The equipment necessary for the making of the test cubes shall be provided by the Contractor. The cubes shall be tested by a Testing Laboratory approved by ETISALAT and the Contractor shall supply a copy of the test report to the Site Engineer within 14 days of the cubes being tested. ESS LPD VERSION-1(2012)

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Work will not normally be delayed for the result of any test to be ascertained. The making, curing and testing of all cubes of concrete for compressive strength tests shall be in accordance with BS 1881, Parts 3 and 4, and the results shall satisfy the following table:(c) Whether test cubes have been taken or not, the Site Engineer may as a result of inspection, rebound hammer tests or the cube tests, condemn the jointing chamber. Alternatively test cores shall be taken and tested in accordance with BS 1881, Part 4. The cores shall be examined and tested, and the estimated cube strength ascertained by an approved and independent laboratory. The Contractor shall be provided with a copy of the test report as soon as it is available and, if this indicates that the quality of the concrete in the structure is unsatisfactory, the jointing chamber shall not be accepted. (d) On completion of a jointing chamber the floor shall be rendered with cement mortar in accordance with the relevant drawing (Condition 512 refers). The walls of concrete jointing chambers shall have a smooth finish; any slight cavities exposed when the shuttering is removed shall be made good with cement mortar, and any projections removed. UNDER NO CIRCUMSTANCES SHALL THE WALLS BE COATED WITH A CEMENT OR CEMENT/SANDWASH. 516.

Compaction and Tamping of Concrete. In construction of concrete or reinforced concrete jointing chambers, the concrete shall be thoroughly worked and tamped into all parts of the moulds or forms and around the reinforcement. All concrete shall be compacted by the use of a poker type vibrator until a dense solid mass without voids is obtained, exceptionally, hand tamping may be employed for un-reinforced concrete Footway joint boxes. Care should be taken not to touch reinforcement steel with the poker during compaction.

519.

Wet Situations. In wet situations the contractor shall carry out additional measures to protect the Cables and Joints, deemed necessary or as per advice from Site Engineer may direct the Contractor to implement such methods as are deemed necessary to prevent damage to freshly placed concrete or mortar and to ensure a waterproof jointing chamber. These methods may include an independent sump, or the use of heavy duty polyethylene sheet or other suitable material, or drainage beneath the concrete floor. The construction shall be water tight, no leakage is permitted through the floor, construction Joint wall or roof.

520.

Shuttering. (a) Subject to compliance with the drawings as regards dimensions, the Contractor shall be at liberty to adopt any arrangement he may think fit for the make-up of shuttering. The shuttering shall be oiled or lime-washed prior to concreting. (b) In all cases the shuttering used shall be of such dimensions, and so constructed, as to remain rigid and unyielding to weight and vibration during the laying and tamping of the concrete. No shaking or jarring shall be permitted during setting.

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521.

Removal of shuttering. The minimum periods after completion of any concrete and/or block work which must elapse before(a) the shuttering of jointing chambers is removed, (b) the restoration of pavings or surfaces may be commenced, © traffic is allowed to pass, are as follows:

Type of cement used

a) To removal of shuttering wall

b) To removal of Shuttering Roof

Sulphate resisting or mild sulphate resisting

24 hrs

7 days

FRAME AND COVERS, CARRIAGEWAY NOS 1, 2, 3 (DOUBLE TRIANGULAR TYPE)

534.

Frames and Covers. Ductile Carriage way Frames and Covers Nos. 1,2 and 3 are used for the following jointing chambers. Type of Frame and Cover

Used for Jointing Chambers

Dimensions of Opening

No. of Covers

No. 1

All Carriage way Manholes

610mmx610mm

2

No. 2

JRC 12

1220mmx685mm

4

No. 3

JRC 14

1830mmx685mm

6

All the above Frame & Cover assembly shall be supplied with safety grids. 536.

Installation and Renewal and/or Changing Level using Cement or Resin Mortar or Resin Bedding. (a) Preparation of New Jointing Chambers - the jointing chamber walls or shaft shall be terminated to and leveled off at a depth of 175 mm below the carriageway surface. Where the joint box walls or manhole shaft is constructed of concrete, and the frame and cover is to be set on resin mortar or resin bedding, the walls or shaft shall terminate at this level with a course of suitable thickness quarry tiles on cement mortar. Installation of the frame and cover must not be commenced until the concrete has been allowed to set for at least 12 hours. (b) Preparation of Existing Jointing Chambers - the existing frame and cover shall be removed and the top of the jointing chamber walls or shaft cut back or built up, as the

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case may be, and leveled off to approximately 175 mm below the carriageway surface. Where building up is necessary bricks or quarry tiles of suitable thickness shall be used and set on cement or resin mortar for cement mortar or resin installations respectively. (c) Preparations of Frame and Covers - prior to installation remove the triangular covers and, where provided, the safety grid(s), and ensure that the frame is clean, dry and free from grease. Remove any loose rust or scale with a wire brush. (d) Setting of Frame (i) Using Cement Mortar (Frames and Covers, Carriageway No.1 ONLY). The top surfaces of the manhole shaft shall be brushed clean, moistened with water and a 20mm layer of cement mortar trawled over the entire surface to be covered by the frame. The frame, with covers removed, shall be lowered carefully onto the cement mortar and gently tapped with a wooden punner until the top edge is level with the carriageway surface. Any surplus mortar shall be struck off flush with the inside walls and, in the case of a new manhole, haunched around and over the lower flange of the frame. For at least 2 hours after the frame has been set on the cement mortar, care must be taken not to disturb or walk on the frame. The covers shall then be replaced and, in the case of an existing manhole, the sides of the excavation and frame shall be primed with bitumen emulsion and the space around the frame shall be reinstated with coated macadam (Condition. 538 refer). The coated macadam shall be well compacted in two layers with a suitable power rammer to finish level with the top of the frame and the surrounding surface. (e) Opening to Traffic. Before opening to traffic, it must be established that the covers do not foul the safety grids or the sides of the shaft or joint box walls. If there is evidence of fouling, it shall be obviated in a manner acceptable to the Site Engineer. (i) Cement Mortar. The minimum period after installation of the frame which must elapse before commencing reinstatement and opening to traffic shall be in accordance with Condition 521, of this Specification in respect of the jointing chamber and bedding under the frame. 538.

Concrete Surrounding. Any Jointing Chamber fitted with a Carriageway frame and cover shall have a concrete surround of concrete Quality "A" to the depth of the frame and cover. The width of this concrete surround shall extend to the outside of the structure wall or 150mm whichever is the less. Opening to traffic shall be subject to Condition 521.

539.

JOINT BOX NO. 23 (a) General. Joint Box No. 23 is a moulded fibre glass jointing chamber used for accommodating distribution cable joints. Its normal use will be limited to installation on Duct 56 routes or on direct buried (direct in ground) cables. It can accommodate one

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sleeve 31A and is therefore ideal for underground distribution point position. (b) Drawing. Details of measurement of JB 23 (with ductile iron cover) are given in Drawing CN 13152. (c) Installation. The excavation for installing a JB 23(with ductile iron cover) should be such that any surrounding compacted soil or paving is disturbed as little or possible to ensure that the box is well supported. Excavation should approximately measure 400mm wide by 700mm long by 490mm deep. The base of the excavation which will support the box should be compacted and if necessary imported material free from large stones shall be used to provide a base. After installation of the box the backfill soil, free from stones, should be well compacted all around the box. (d) Concrete Surround. Where installed in loose surface conditions, it may be necessary for a concrete surround to be cast at the box position as per the Schedule of Work or as per instruction by the Site Engineer. The surround shall be 150mm wide to a depth of 75mm concrete Quality "A" with one 10mm diameter by 225mm long right angled reinforcing bar centrally located in concrete mass at each corner. 541.

Joint Markers and Marking Posts. The position of each buried jointing point shall be indicated by means of a steel Marker post/protection post placed flush with the surface immediately over the centers of the object, or a Marking Post positioned as directed by the Site Engineer.

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CABINET CROSS CONNECTION/

FDH (FIBER DISTRIBUTION HUB) 542.

Excavation for Base. (a) Excavations of the sizes shown on drawing CN 1464Z sheet 4 shall be made in the

positions indicated by the Site Engineer. (b) The bottom of each excavation shall be well rammed. 543.

Provision of Base. (a) Template - a template shall be provided by the Contractor and used to register accurately the positions of the Bends Duct No. 54D and Bolts Foundation Indented No. 1 and their position relative to the footway surface the bends shall be so placed to give the required depth of cover on the duct leaving the cabinet (Condition 313 refers) and to project 30mm above the proposed base. Any surplus duct shall be cut off and removed (Condition 411 refers) after the base has been placed and the periods given in Condition 543 (b) have elapsed. The foundation bolts and the earth rod/spike shall be fixed in the template so that they are set vertically in the base and to project 40mm and 100mm respectively above the proposed base. Where cabinets are installed on slopping ground, it may be necessary for part of the base to be above ground in order to open fully the cabinet doors. The height of the base is determined by the Site Engineer for sites that are liable to flooding and the base should be raised accordingly. (b) Concreting - prior to concreting the ends of the PVC duct bends shall be sealed with

plugs (Duct and Cable Laying Section refers). Concrete Quality "A" shall be used for the base and shall be placed round the PVC duct bends and carefully leveled at a depth of 75mm below the surface of the ground or paving, as measured at the center of the base. The minimum period, after the completion of concreting, which must elapse before the cabinet is erected, shall be 48 hours. 544.

Erection of Cabinet. (a) The surface of the concrete must be thoroughly cleaned and bedding of cement mortar

laid to a depth of 13mm over that part of the surface on which the plinth will seat. Before drying, the plinth should be placed in position and secured by the foundation bolts at the four corners. The cement mortar should then be struck off in line with the inside of the plinth and on the outside trowel led to form a fillet around the flange to assist in drainage of water. With the cabinet door removed access to sealing putty, cabinet securing bolts and washers is obtained. Positioned 20mm. away from the central cut out of the plinth lay and press out a 3mm thick x 13 mm wide single continuous strip of sealing putty onto the plinth. Position the cabinet body onto the plinth and bolt down with the supplied washers and hexagon bolts so as to spread the putty and seal. Scrape off with a blunt tool any excess putty which protrudes beyond the cabinet exterior. Finally the inside of the cabinet base should be sealed using Resin Pack 6A. ESS LPD VERSION-1(2012)

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(b).

Back-filling of the excavations shall proceed in accordance with the filling-in and Restoration of Paving Section of this Specification.

546.

Key. Key obtainable from the Site Engineer is required to open Cabinets CrossConnection.

547.

Cabinets base, CATV Node, ONU base, kiosk base. Where required the concrete base shall be built as per ETISALAT drawing or as per manufacturer’s drawing.

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FILLING-IN AND RESTORATION OF PAVING SECTION INDEX

601.

Para

Title

Para

Title

601. 602 603.

General Ramming Compaction Test

604. 605.

Sealing Obligations

General. (a) The Contractor shall execute interim restoration and permanent reinstatement, except as in Condition 86 of Standard Conditions to the satisfaction of the Site Engineer. (b) The operation of filling-in a trench shall not normally be commenced until the work to be covered thereby has been approved by the Site Engineer. Filling-in may only commence before such approval is given, provided that, prior permission has been received from the Site Engineer, and the Contractor agrees to excavate fill and reinstate such tests holes as may be requested later by the Site Engineer

602.

Ramming. (a) The periods of time between the placing of concrete and the commencement of backfilling shall be in accordance with the requirements of the Duct and Cable Laying Section and the Jointing Chambers Section of this Specification, and must be strictly followed. (b) All spaces outside the walls of jointing chambers, duct laid in concrete in trench and all other duct laid in trench shall be carefully filled in with granular material or concrete as directed by the Site Engineer and rammed, care being taken to ensure that the ramming does not disturb any recently completed work. (c ) All ducts not laid in concrete shall be covered by a layer of earth, free from stones, and hand punned to a thickness of not less than 100 mm, or as otherwise directed by the Site Engineer. (d)

Except where otherwise directed by the Site Engineer, all materials shall be replaced in 150 to 230 mm layers or according to authorities specification/requirement, in the reverse order to which they were excavated and thoroughly compacted. Mechanical punners shall normally be used. If this is impracticable and hand punning is employed, there shall be at least three punners to one filler. No excavated material shall be reused without the approval of the Site Engineer. Where new material is insisted by authorities, or required for scope of Contractor shall arrange the same without any additional cost to Etisalat. The cost of such material also shall be considered as a part of schedule of works of duct laying and joint box construction. The required material tests to be conducted as directed by the authorities (either by the authority themselves or in the laboratory approved by the authorities) and the cost of the conducting tests to meet the requirements of authorities is also considered as a part of schedule of works of duct laying and joint box construction.

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603.

Compaction Test. (a) Back filled excavation shall be tested at various levels by applying and continuously operating either, an explosive type rammer weighing approximately 102 Kg. over an area of one half square metre for a period of three minutes, or a vibration rammer weighing not less than 50 Kg. over a similar area for three minutes or less if the behavior of the machine indicated maximum compaction. Rammers used for the compaction tests must be in efficient working order. At least one test, in a position selected by, and in the presence of the Site Engineer, shall be carried out during back-filling as follows: (i) Carriageway trench excavations - within a 50 metre length of trench or between jointing chambers and/or jointing chamber positions, whichever is the shorter, and (ii) in all other carriageway excavations. ( b). Further tests shall be carried out in the carriage way or footway, at such times and locations as the Site Engineer considers necessary. ( c). The compaction will be considered satisfactory providing the tests show no measurable change level. A measurable change in level is a depression which cannot be rectified by reshaping the tested area, and consequently requires additional material, which when compaction will restore the surface of the test area to the original level. Should any measurable change in level occur, then the area of faulty compaction as defined by the results of this and further check tests shall be rectified as required by the Site Engineer, under the terms of condition 24 of the Standard Conditions. At all times the test results shall provide 98% MDD (Max Dry Density) compaction. The local authorities requirements and procedures are also applicable. Minimum two test per 50m run, and or additional tests or repeated test as required by the authorities shall be considered inclusive in the schedule of rates.

604.

Sealing. (a ). A sealing coat capable of preventing the ingress of water shall, unless otherwise specified, be provided before opening to traffic any back-filled excavation in carriage ways or footways which have sealed paving that cannot be relayed as an interim measure. Tar or Bitumen Macadam sufficiently well graded to be an effective seal or other similar approved material shall be used. Before the sealing coat is inserted the cut edges of the existing paving must be brushed clean and coated with an approved emulsion. Paving of Flags and other similar types that can be relayed, as an interim measure will require the sealing coat where spaces are left unpaved, at the interim stage. The sealing coat shall be not less than 50mm in thickness. (b ). The Site Engineer will not allow the inclusion of an interim sealing coat as part of the permanent reinstatement unless: (i) Prior approval of the Street Authority's Surveyor is obtained via the Site Engineer. Where the local authority elects to carry out the permanent reinstatement the contractor shall perform all the works related to interim restoration. However the thickness of interim restoration of the paving shall not be less than 50mm and the compaction requirements are fully met.

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(ii) The sealing coat to a minimum of 75mm whatever the materials used, or such greater depth as shall be agreed with the Surveyor/ Site Engineer. The method of inserting the sealing coat is to permanent reinstatement standards, that is, trimmed and fluxed edges, agreed materials, etc. Little, if any, settlement has occurred after an adequate interim period. This period will normally be 3 months, but may be modified with the written agreement of the Site Engineer. (c ) Sealing coats less than 75mm will not be accepted by the Site Engineer as part of the permanent reinstatement. Rates for the work must allow for complete removal of the interim sealing coat at the permanent reinstatement stage. A temporary reinstatements shall cover all the work of the permanent reinstatement with the exception of the top paving restored to 50mm thick. 605.

Obligations. Whatever method is used, the filling-in and the restoration of Paving shall comply with the obligations imposed on ETISALAT.

605.1

Filling in and restoration of Excavation. The contractor shall excavate and fill & ram the trenches excavated to clear blockages in the duct, to the full satisfaction of the Site Engineer.

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SAFETY PRECAUTIONS SECTION INDEX Para. Title 701. 702.

701.

Para.

General P.V.C. Cement and Methylated Spirits

703. 704.

Title Resin Pack No. 6A Resin Bedding and Resin Mortar

General. (a) Ducts, pipes and cables existing in the ground shall not be diverted either by levering or otherwise; they shall not be allowed to rest upon (other than as a temporary means of support) or to be incorporated into any part of ETISALAT structures or duct. This shall apply unless the Site Engineer otherwise directs, in which case the Site Engineer will be responsible for obtaining the agreement of the owner of the existing apparatus to the arrangements to be adopted. (b) Where it is proposed that LASER (Light Amplification by Stimulated Emission of Radiation) equipment is to be used in connection with any work to this Specification, details shall be supplied in advance to ETISALAT for approval. Any safety precautions required by the Site Engineer for the operation of Laser equipment shall be observed. (c) When using certain materials referred to in this Specification, the safety precautions contained in the following paragraphs should be observed.

702.

P.V.C. Cement and Methylated Spirits. When using P.V.C. Cement and/or methylated spirits, care should be taken to ensure that working areas are adequately ventilated. Naked flames should not be used under any circumstances and smoking should not be permitted.

703.

Resin Pack No. 6A When mixing and/or using Resin Pack No. 6A:(a) Barrier cream should be applied to the hands, and forearms if exposed, before handling the resin. (b) Disposable gloves should be worn. (c) After use, all soiled containers waste and gloves should be disposed of in a refuse bin. (d) The resin should always be mixed in a well-ventilated place.

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704 (1) The contractor is responsible for the safety of the pedestrians, vehicles for their own working staff. (2) Proper approved traffic signboard and flashlights, warning tapes shall be used throughout the execution of the job to the entire satisfaction of the Site Engineer and the authorities. (3) Access to the business and the residence etc shall be always maintained. (4) No time the excavation shall be left open unreasonably affecting the users of footpath and road. (5) As far as possible the work at a new location may not be commenced without completing the earlier commenced portions. (6) All safety measures required by any local authorities including appointment of safety officer for fieldwork should be followed without any delay or extra cost.

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TOOLS, PLANT AND EQUIPMENT SECTION INDEX

801.

Par.

Title

801

Articles required for the scope of work

Articles required for the scope of work Contractor shall arrange such of the following list or other articles as may be required for the scope of work. Anchor Irons for Jointing Chambers Bends, Duct-PVC Bolts, Arm Bolts, Foundation Indented Boxes, Joint No. 23 Brackets, Joint Box Cable Bearers Cable, Cable Drums Capping, Rolled Steel or PVC Cap end sealing. Clips Binding Collars, Gland Caulking Compound No. 14 Compound No. 16 Compound No. 20 Compound No. 21 Connectors, Bend Couplings, All types Glands, Caulking Discs, Caulking No. 1 Draw Rope No. 1 Ducts, PVC, and Polyethylene or other types as specified. Frames and Covers for Jointing Chambers and all types Gratings Sump Grips, Stay Hooks, Ladders with Hooks and Bar Mixture No. 2 Nails, Bonding

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Numbers, Poles Plastic Plugs Poles Wood Duct Plugs for Duct 54D, Duct 56. Duct Couplings and accessories. Mini Plugs, Quards Plugs, Tri Plugs for Sub Ducts. HDPE ducts with required fixtures

Sub Duct couplings and accessories. Lubricants. Cable seals. Duct seals. Resin Pack No.6A Rod, Stay Screw Coach Spike/Rod, Earth Strips, Binding Steps, Manhole Steps, Pole Washers, No. 19 Wire Stay Wire Copper Earth Brushes Cylindrical for cleaning ducts Diaries Keys, Joint Boxes Key, Lifting, for Manhole Covers Keys, Cabinet Mandrels, Testing Plugs, Pressure No.1

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