Elevator PPM-REV3 [PDF]

Zitiervorschau

thyssenkrupp Elevator Qatar

Doc Ref Nos. tkeQ /HSE / RA / 04 /2019 Revision / Issue : Date : 02/09/2019 Discription : Risk Assessment for Elevator Maintenance Risk Trivial Critical High Meduim Classification 1 21-25 16-20 11-15

Risk Assessment likelihood Certain Highly Likely 5 4

Likely 3

Unlikely Highly Unlikely Severity Catastrophic Substantial Moderate 2 1 5 4 3

Minor 2

Low 6-10

Risk Rating

9

Barricading elevator entrances (ground, first and Unauthorized Entry second)

Fall to Pit

3

3

9

3

Open the landing door with emergency key Cabin top stationed below the when elevator is in the correct position to access landing level. to cabin top.

Fall to cabin top / injury

4

3

4

Access to cabin top

Cabin top stationed below the landing level.

Fall to cabin top / injury

3

5

Egress from the cabintop

Cabintop stationed in improper level.

Trip or fall from cabin top to landing levels

6

Pit Access (Register call inside the cabin to UP level and exit).

Uneven cabin and landing door sills.

7

Stop the cabin when it reached above operatives head level height by means of door unlocking standing near to pit. device.

Site Condition (Common access & Egress)

2

8

9

Applying the stop button inside the pit.

Access to Pit

10 Egress from Pit

Partially Blocked access / Uneven Suface /Loose soil

standing near to pit.

Improper use of fixed ladder

Improper use of fixed ladder

Outcome

3

1

Hazards (The potential to cause harm )

Severity

Severity

Outcome

3

Job Step (Sequence of working activities)

Residual Risk Likelihood

Likelihood

Effects/ Consequences (The harm which could possibly occur).

Trip/fall

SL No

Insignificant 0-5

1

3

3

1

3

3

Keep an eye on floor level when exit from cabin.When 12 cabin reach almoast 500MM ,stop the unit by means of unlocking key.

1

3

3

4

When access to cabin top ,check and apply stop button . 12 Inspection switch and light switch ON.(Strictly follow the tkeQ access procedure).

1

4

4

4

3

12

Always station the cabin top in level to the landing doors and exit. Release the stop button, switch to normal mode and switch off the lights. Never leave any tools and materials over the cabintop.

1

3

3

Slip,trip and fall on the same level.

3

3

Keep an eye on floor level when exit from cabin.When 9 cabin move and reach over the head level ,stop the unit by means of unlocking key.

1

3

3

Falling to pit / Fracture

4

3

Keep a safe distance from the landing sill.Verify the cabin 12 is in correct position by opening the both landing door 100mm.

1

3

3

3

Always keep an eye for cabin movement.Hold one hand wrist firmly on outside shaft column.Lean carefully into 12 the shaft and with the other hand apply the stop button located inside the pit. Switch on the shaft or pit light. Apply the stop button

1

3

3

4

Always maintain three mode contact on fixed ladder whilst access/egress to the pit.Never use buffer as ladder.Grip 16 firmly on handrail and then step on fixed ladder properly.Ensure to Pit stop ON, Keep landing door open with a 100mm gap by means of door stopper.

1

4

4

3

Always maintained three mode contact whilst access/egress to the pit.Never use buffer as ladder.Grip firmly on 9 handrail and then step on fixed ladder properly. Release the 1 Pit stop switch and close the landing door after maintaning safe distance form landing area.

3

3

Falling to pit / Fracture

Falling to pit / Fracture

Fall to pit

4

4

3

Recommended Control Measures & Mitigations

Follow site safety rules Use only designated access Safety barricade and fence to be placed in fornt of the landing door .

Doc Ref Nos. tkeQ /HSE / RA / 04 /2019 Revision / Issue : Date : 02/09/2019 Discription : Risk Assessment for Elevator Maintenance Risk Trivial Critical High Meduim Classification 1 21-25 16-20 11-15

Likely 3

Unlikely Highly Unlikely Severity Catastrophic Substantial Moderate 2 1 5 4 3

Minor 2

Low 6-10

Hazards (The potential to cause harm )

Inadequate access

Effects/ Consequences (The harm which could possibly occur).

Fall of person

3

Severity

Job Step (Sequence of working activities)

Residual Risk

Outcome

SL No

Likelihood

Risk Rating

Insignificant 0-5

4

Provide signboard on the landing doors at all levels indicating, Lift is Under Service. Do not leave the landing doors open. Ensure proper lighting, ventilation and housekeeping 12 Proper ladder to be provided to access to pit

Recommended Control Measures & Mitigations

Outcome

likelihood Certain Highly Likely 5 4

Severity

Risk Assessment

Likelihood

thyssenkrupp Elevator Qatar

1

4

4

1

3

3

1

3

3

1

4

4

1

5

5

1

4

4

Suitable working platform shall be installed in the pit to access the bottom of car, especially for high speed elevators, where the clearance from the pit bottom will be more than 2mtr 11 Working in pit

Humidity

Heat stress

4

3

Loose Materials

Material falling to pit

3

3

Make sure adequate rest break and provision of drinking water 9 Maintain good housekeeping

12

Test and verify the door lock circuit and pit stop switch, or two means of stopping operation of the elevator, before entering the pit Moving Car & Counter weight

Hit by cabin/counter weight in multiplex hoist way

3

4

12

Ensure proper lighting, ventilation and housekeeping While working in the pit, other related work on the car top should not be carried out Temporary barricade should be provided to prevent the technicians from entering the running elevator pit All works related to the car top and bottom should be carried out keeping the car at the lower most possible floor

Working at height

Person falling from car top

5

5

25

Hand rails should be made available on the car top while working ,if not ensure about the full body harness and shall hooked in acceptable points. Existing hand rails on car top shall never be removed Do not stand on the hand rail for any reason what so ever Avoid loose materials(tools, nut & bolts) grease spillage on the car top Suitable ladders shall be provided on the car top temporarily to access the rail top. In duplex/triplex hoist way avoid jumping from one car top to another car top.

12 Working on Cabin top

Technicians shall not over reach beyond the hand rails Working near Rotatable Parts

Entanglement /Crush Injury

4

4

16

Doc Ref Nos. tkeQ /HSE / RA / 04 /2019 Revision / Issue : Date : 02/09/2019 Discription : Risk Assessment for Elevator Maintenance Risk Trivial Critical High Meduim Classification 1 21-25 16-20 11-15

Likely 3

Unlikely Highly Unlikely Severity Catastrophic Substantial Moderate 2 1 5 4 3

Minor 2

Low 6-10

Working near Rotatable Parts

Effects/ Consequences (The harm which could possibly occur).

Entanglement /Crush Injury

Severity

Hazards (The potential to cause harm )

Outcome

12 Working on Cabin top Job Step SL (Sequence of working activities) No

Residual Risk

Likelihood

Risk Rating

Insignificant 0-5

4

4

Ensure that car top light of the other elevator is switched 16 ON so that the technicians are cautioned, whenever the nearby elevator crosses the work place.

Recommended Control Measures & Mitigations

Outcome

likelihood Certain Highly Likely 5 4

Severity

Risk Assessment

Likelihood

thyssenkrupp Elevator Qatar

1

4

4

1

4

4

All technicians should aware of the head room clearance of car top & overhead obstructions Before moving the car up or down, ensure the car top person makes proper instruction. Restrict working on live conditions to bare minimum possible While carrying out any maintenance activity in the control panel, car top station & car operating panel, the power supply should be isolated and lock out/tag out procedure to be followed. Proper warning signs to be displayed Use only approved hand tools with insulation 13 Function test in live control panel

Electricity

Electrocution

5

4

20 No metallic ornaments shall be worn by technician Change the operation of elevator to manual mode before carrying out any maintenance adjustments in the control unit, while carrying out function test Use only approved and calibrated instruments Ensure the use of proper jumpers Check the earth resistance of elevator before attempting any live working to ensure that the earthling is effective Ensure the usage of good quality hand gloves

Doc Ref Nos. tkeQ /HSE / RA / 04 /2019 Revision / Issue : Date : 02/09/2019 Discription : Risk Assessment for Elevator Maintenance Risk Trivial Critical High Meduim Classification 1 21-25 16-20 11-15

Likely 3

Unlikely Highly Unlikely Severity Catastrophic Substantial Moderate 2 1 5 4 3

Minor 2

Low 6-10

Hazards (The potential to cause harm )

Effects/ Consequences (The harm which could possibly occur).

Severity

Job Step (Sequence of working activities)

Outcome

SL No

Likelihood

Risk Rating

Insignificant 0-5 Residual Risk

Recommended Control Measures & Mitigations

Outcome

likelihood Certain Highly Likely 5 4

Severity

Risk Assessment

Likelihood

thyssenkrupp Elevator Qatar

1

3

3

4

4

1

3

3

1

3

3

1

3

3

Ensure proper lighting Before carrying out any work in motor, power supply should be switched off and follow lock out/tag out procedure strictly No loose clothing shall be allowed No metallic ornaments shall worn. 14 Working on traction machine

Rotating Parts

Trap between, Caught in,Pinch point

4

3

12

Guards shall not be removed unnecessarily, if the guards are removed during maintenance activities, It shall be fixed back immediately. Ensure that there is no physical contact with moving parts before starting any test. Maintain a safe working distance from the rotating parts of the motor while inspection

15 Use of power tools

Electricity

Electrocution

3

4

Beware of pinch points. Ensure that all power tools are double insulated. Inspect all power tools, cable, plug and socket periodically and before each use. Take power supply from only approved sources and 12 through ELCB 1 Do not use power tools in wet hand or wet environment. Avoid loose materials, cables from rotating parts Maintain good cable management Do not keep any hand tools on the separator beam/call button cut out.

Slip from hand

Falling of tools

3

3

9 Use restraining strap with hand tools to avoid falling hazards, make sure to carry safe load and correctly. All hand tools should be maintained in a small tool box at the place of work

16 Use of hand tools

Impact tools

Flying obtacts

4

3

Worn out tools

Strike against

3

3

Get mushroomed head of impact tools such as chisels, wedges or drift pins ground off. Otherwise the heads might 12 shatter on impact, sending sharp fragments flying Do not use screw driver as a chisel, it’s handle can break and fly, hitting the user and others Inspect the wrenches for worn out jaws since it might slip while working. 9 Do not use screw driver as a chisel ,it’s handle can break and fly, hitting the user and others Maintain good cable management

thyssenkrupp Elevator Qatar

Doc Ref Nos. tkeQ /HSE / RA / 04 /2019 Revision / Issue : Date : 02/09/2019 Discription : Risk Assessment for Elevator Maintenance Risk Trivial Critical High Meduim Classification 1 21-25 16-20 11-15

Risk Assessment likelihood Certain Highly Likely 5 4

Likely 3

Unlikely Highly Unlikely Severity Catastrophic Substantial Moderate 2 1 5 4 3

Minor 2

Low 6-10

Risk Rating Severity

Outcome

Likelihood

Severity

Outcome

Residual Risk

Likelihood

Effects/ Consequences (The harm which could possibly occur).

Insignificant 0-5

17 Transportation & Maintenance

Improper securing of materials

Falling of materials

4

3

Use only Registered vehicle & Licensed driver 12 Secured the materials with ratchet binders . Never exceed the S.W.L.

1

3

3

18 Conduct several run tests in normal mode by

unauthorized entry

Passenger may lead to another levels

3

3

9 Never allow passengers during run tests.Standby technician

1

3

3

19 Remove the barricade from all levels (ground,

Passenger movement

Hitting of barricading with passenger

4

3

12 Barricade to be removed properly. Ensure good housekeeping

1

3

3

Job Step (Sequence of working activities)

SL No

registering all possible elevator calls. first and second)

Hazards (The potential to cause harm )

Recommended Control Measures & Mitigations

should be inside the cabin.

before leaving the area of work

Prepared By : Binu.P.Raphal (HSE ) Date : 02/09/2019

Reviewed & Approved By : Date : 02/09/2019

Signature :

Signature :