general procedure hse-gen-04 activity risk ... - qc…qc.imeco.com/qhse/database/maintenanace hse...

General Procedure HSE-GEN-04 Hazard Analysis & Risk Assessment, Identification of Environmental Aspect and Impact Assessment P-474 / ARA / 01

ACTIVITY RISK ASSESSMENT WORKSHEETRev No: 02 Date: 03.01.2012

Work Activity:

Electrical Maintenance work. General

Location: Ruwais Housing Complex

Assessment Team: Mr. Mohammed Ali – Contract Supervisor Mr. Zakir – Electrical Foreman Mr. Alex – Electrical Foreman Mr. Mohammed Iqbaal – Camp Boss Mr. Shafaith Afthab - Officer - HSE

Approved By: Senior Manager Project

Task Hazard Initial Risk Controls Residual Risk

Step No

Description of task step

Hazard description & Effect

Harm to

C

P

R

Initial Risk

Control Measures and / or recovery Measures

C

P

R

Residual

Risk

C-Consequence, P – Probability, R-Risk Rating Value

of 2

Form 136/Rev.01 dt 29.11.11

• Lack of welfare

facility

P A 3 2

6P 6A

M • Ensure availability of toilet facility • Ensure cool drinking water available. • Ensure ORS available

3 1 3P 3A

L

1. General Continued…

• Heat stress P

A 3 3 9P 9A

H • Personnel briefed on the heat illness –hazards and precautions. 3 1

3P 3A

L

• Personnel not wearing PPE

P A 3 2

6 P 6A

M • Use Mandatory PPE’s (Safety Helmet, Safety Shoes, Coverall, Safety Glass and Safety Hand Gloves). 3 1

3P 3A

L



Work Activity:

ARC Welding, Drilling, Grinding works and cutting operations.





Step No



Harm to

C

P

R

Initial Risk


C

P

R

Residual

Risk


Page 2 of 4

Form 136/Rev.01 dt 29.11.11

6.

Installation of drill bit to the drilling machine.

Un suitable rotor speed selection and breakage of drill bit.

P A 3 2 6P A M

• Proper inspection of drilling machine before use. • Safety induction training to be given for all

personnel. • Daily tool box talks to be given and recorded. • Use the correct rotor speed and install the correct

drill bit for specific kind of job.

3 1 3P A L

7. Connecting to the power supply.

Damaged power cord resulting in electrocution to operator.

P A 3 3 9P A H

• Check the power cord for damages and also for double insulation.

3 1 3P A L

8. Selecting the rotor speed.

Breakage of drill bit and fragmentation. P A 3 2 6P

A M • Ensure proper line voltage. • Do not use drills in flammable gas atmospheres. 3 1 3P

A L

9. Execution of drilling job.

Damage to the drilling machine assembly. P A 3 3 9P

A H

• Ensure a gas test has been carried out prior starting the welding work in such atmosphere.

• Make all installations by keeping the power switch in off position.

• Do not carry a power drill by the power cord. • Never use the hands to stop the rotation of a power

drill. • Use Mandatory PPE’s (Safety Helmet, Safety

Shoes, Coverall, Safety Glass and Safety Hand Gloves) including suitable eye protection.

3 1 3P A L



Work Activity:






Step No



Harm to

C

P

R

Initial Risk


C

P

R

Residual

Risk


Page 3 of 4

Form 136/Rev.01 dt 29.11.11

10.

Selection of suitable grinding wheel for the operation.

Improper selection of grinding wheel and breakage during operation.

A 3 2 6P 6A

M

• Safety induction training to be given for all personnel.

• Daily tool box talks to be given and recorded. • No flammable substances to be kept near the

vicinity of grinding operation.

3 1 3A L

Improper speed of the grinder and exploding of the grinding wheel.

A 3 2 6A M

• Proper selection of grinding wheel which includes a through visual inspection for cracks or damages in the grinding wheel.

3 1 3A L

11.

Selection of proper rotor speed.

Kick back of the tool during sudden contact with work piece.

P A 3 2 6P 6A

M

• Use proper speed selection for the grinding tool. • All hazards to be communicated to the workforce

prior start the job.

3 1 3P A L

Exploding of grinding wheel and shattering of fragments.

P A 3 3 9P A H

• A ringing sound test to be conducted at the surface prior to use.

3 1 3P

A L

12. Execution of grinding work.

Contact with grinding wheel causing burns and losing flesh and skin.

P A 3 3 9P A H

• All personnel including visitors to wear suitable eye protection while visiting the job location.

• Use Mandatory PPE’s (Safety Helmet, Safety Shoes, Coverall, Safety Glass and Safety Hand Gloves) including face mask and eye protection for

3 1 3P A L



Work Activity:






Step No



Harm to

C

P

R

Initial Risk


C

P

R

Residual

Risk


Page 4 of 4

Form 136/Rev.01 dt 29.11.11

protection from dust and fragments shattered during grinding.

13.

Installation of cutting torch.

Contact with the flame / arc and burns.

P A 3 2 6PA M

• Proper inspection of gas cylinders and cutting torch before use.

• Safety induction training to be given for all personnel.

• Daily tool box talks to be given and recorded.

3 1 3P A L

14.

Connection of gas cylinders with the cutting torch.

Pressure buildup and explosion of gas cylinders due to blockage.

P A 3 3 9PA H

• Inspect the supply hoses before starting the cutting job.

• The cylinders to be inspected for leakages prior start the job.

3 1 3P A L

15. Regulating the gas flow. Fire and explosion. P A 3 3 9P

A H

• Keep the cylinders always in the upright position. • Use flash back arrestors in the gas cylinders. • Check nozzle of cutting torch for any blockages

prior starting the job.

3 1 3P A L

16. Execution of cutting job.

Damage to cutting tools and equipments. P A 3 2 6P

A M

• Use only friction ignition. • Use Mandatory PPE’s (Safety Helmet, Safety

Shoes, Coverall, Safety Glass and Safety Hand Gloves) including suitable eye protection.

3 1 3P A L



Work Activity:

Electrical equipment Maintenance, electrical shut down work, earthing work.





Step No



Harm to

C

P

R

Initial Risk


C

P

R

Residual

Risk


Page 2 of 4

Form 136/Rev.01 dt 29.11.11

2. Installation of power cords. Continued….

Failure to test for existing supply using incorrect testers causing burns and electrocution.

PA 3 3 9P 9A

H

• Damaged extension leads and power cords must be discarded from use.

• There should be designated areas for operations such as welding / cutting / brazing etc and all power tools must be properly isolated and guarded.

• There should be specific areas for washing and cleaning purpose.

• There should be provision for first aid and a suitable eye wash station.

• Emergency contact Nos. to be displayed. • Proper house keeping must be ensured and proper

waste disposal methods to be adopted. • Solid wastes to be segregated from acids and other

oil waste and disposed only through a competent authority.

3 1 3P 3A

L

3. Inspection for damages in the equipment.

In competent personnel or untrained personnel undertaking the maintenance job resulting in personnel injury or asset damage.

PA 3 2 6P 6A

M

• Only trained and competent persons to do the maintenance work.

• There should be designated areas for operations such as welding / cutting / brazing etc and all power tools must be properly isolated and guarded.

• Use Mandatory PPE’s (Safety Helmet, Safety Shoes, Coverall, Safety Glass and Safety Hand Gloves) including eye protection.

3 1 3P 3A

L



Work Activity:






Step No



Harm to

C

P

R

Initial Risk


C

P

R

Residual

Risk


Page 3 of 4

Form 136/Rev.01 dt 29.11.11

4. Isolation of power supply.

Wrong isolation and electrocution to workers.

PA 3 3 9P 9A

H

• Safety induction training to be given for all

personnel. • Daily tool box talks to be given and recorded.

3 1 3P 3A

L

5.

Checking for leakage current prior starting maintenance.

No lock out tag out procedures resulting in the electrocution to personnel.

PA 3 3 9P 9A

H

• Ensure proper isolation of power supply and lock

out tag out procedures. 3 1

3P 3A

L

6. Use of ELCB’s.

No ELCB installed resulting in leakage current flow to the equipment and electrocution and burn injury.

PA 3 3 9P 9A

H

• ELCB’s to be installed at all locations and also in

distribution boards. 3 1

3P 3A

L

7.

Commencing the maintenance activity.

No grounding of the equipment resulting in electrocution.

PA 3 3 9P 9A

H

• Ensure proper grounding / earthing of the equipment prior starting any maintenance activity.

3 1 3P 3A

L



Work Activity:






Step No



Harm to

C

P

R

Initial Risk


C

P

R

Residual

Risk


Page 4 of 4

Form 136/Rev.01 dt 29.11.11

8.

Finalizing the maintenance activity.

Conducting maintenance work on high voltage supply lines equipments resulting in electrocution.

PA 3 3 9P 9A

H

• Maintenance work to be undertaken on high voltage equipments only using tools designated to work with high voltage lines.

• Ensure availability of proper first aid facilities. • Use Mandatory PPE’s (Safety Helmet, Safety

Shoes, Coverall, Safety Glass and Safety Hand Gloves).

3 1 3P 3A

L

9. Re energizing the equipment.

Conducting maintenance work on high voltage supply lines equipments resulting in electrocution.

PA 3 3 9P 9A

H

• Re energize the equipment only after ensuring that the task has been suitably completed.

• Ensure availability of fire extinguishers (CO2) type.

3 1 3P 3A

L

10.

Identifying the correct amperage rating and selection of earthing wire.

Improper amperage selection of earthing wire.

P A 3 2 6P 6A

M

• Proper earthing wire with suitable ampere rating must be selected.

• Never use low rated wires for earthing purposes. • Ensure smooth flow of leakage current to earth. • Use Mandatory PPE’s (Safety Helmet, Safety Shoes,

Coverall, Safety Glass and Safety Hand Gloves).

3 1 3P 3A

L

11. Installing the earthing.

Installation of earthing without using proper PPE’s.

P A 3 2 6P 6A

M • Ensure smooth flow of leakage current to earth. • Use Mandatory PPE’s (Safety Helmet, Safety Shoes,

Coverall, Safety Glass and Safety Hand Gloves).3 1

3P 3A

L



Work Activity:

Excavation.





Step No



Harm to

C

P

R

Initial Risk


C

P

R

Residual

Risk


Page 2 of 3

Form 136/Rev.01 dt 29.11.11

Using improper excavation methods such as use of mechanical aids in manual excavation job.

P A 3 2 6P 6A

M

• Select proper excavation methods required for the job. (Manual or mechanical).

• The excavations to be inspected every day prior starting the work for any gas present and trapped in the excavation.

• Use Mandatory PPE’s (Safety Helmet, Safety Shoes, Coverall, Safety Glass and Safety Hand Gloves).

3 1 3P 3A

L

4.

Fixing the excavation route and selection of work method; use of manual mechanical methods.

Collapse of edge of excavations due to no shoring / sloping.

P A 3 3 9P 9A

H

• All excavations to be properly shored / sloped to prevent the collapse of edges.

• All excavations must be properly barricaded to prevent personnel and vehicles falling into the excavation.

• Suitable warning signs to be displayed at prominent places.

3 1 3P 3A

L

Chemical ill effects to work force due to inhalation of toxic fumes present in the trenches and entry to trenches without conducting proper gas tests.

P 3 3 9P H

• The excavations to be inspected every day prior starting the work for any gas present and trapped in the excavation

3 1 3P L



Work Activity:

Excavation.





Step No



Harm to

C

P

R

Initial Risk


C

P

R

Residual

Risk


Page 3 of 3

Form 136/Rev.01 dt 29.11.11

5. Excavations more than 1.2 meters deep.

Working without proper PPE’s causing personnel injury.

P 3 2 6P 6A

M

• For excavations more than 1.2 meters deep proper gas tests to be conducted and there should be a confined space entry permit.

• Use Mandatory PPE’s (Safety Helmet, Safety Shoes, Coverall, Safety Glass and Safety Hand Gloves) including dust / nose mask.

3 1 3P L



Work Activity:

Use of Compressor.





Step No



Harm to

C

P

R

Initial Risk


C

P

R

Residual

Risk


Page 2 of 2

Form 136/Rev.01 dt 29.11.11

2. Use of Air Compressor. Continued…

Damage to pressure relief valve and explosion.

P A 3 3 9P 9A

H

• Keep the nozzle directed away from body. • Flexible air hoses to be kept as minimum as

possible to prevent whipping action and tripping.

3 1 3P 3A

L



Work Activity:

Cable Pulling.





Step No



Harm to

C

P

R

Initial Risk


C

P

R

Residual

Risk


Page 2 of 2

Form 136/Rev.01 dt 29.11.11

3.

Installation of cable drum. Continued…

Uncontrolled rotation speed of the cable drum and slipping from the installation causing workforce injury and asset damage.

P A 3 3 9P 9A

H

• The speed of rotation of the cable drum must be monitored and controlled at all times through sufficient supervision.

3 1 3P 3A

L

4.

Fixing the route and pulling the cables on the designated route.

Improper planning of the route for cable pulling results in damage to the cable.

A 3 2 6A M

• Before starting the cable pulling the route has to be fixed accordingly and it must be ensured that no barriers or obstructions come in the path of cable pulling.

3 1 3A L

Personnel injury due to improper manual handling methods.

P A 3 3 9P 9A

H

• All personnel to be properly trained on safe manual handling methods prior starting the job.

• Use Mandatory PPE’s (Safety Helmet, Safety Shoes, Coverall, Safety Glass and Safety Hand Gloves). 3 1

3P 3A

L



Work Activity:

Scaffolding work.





Step No



Harm to

C

P

R

Initial Risk


C

P

R

Residual

Risk


Page 2 of 2

Form 136/Rev.01 dt 29.11.11

3.

Inspection of scaffolding accessories. Continued…

No guar rails, toe boards installed resulting in fall of personnel or tools and equipments resulting in personal injury and damage to assets.

P A 3 3 9P 9A

H

• Protect the nearby accessories using suitable barriers during installing scaffolding.

• Ensure installation of toe boards, guard rails. •

3 1 3P 3A

L

4.

Certification of scaffolding after inspection and installation of “scafftag”.

Working without fall protection devices and falling from height.

P 3 3 9P H

• Only competent persons to do the scaffolding work.

• Provide “scafftag” system. • Scaffolding to be inspected and certified regularly. • All scaffolding works to be undertaken by trained

scaffolders only.

3 1 3P L

5.

Periodic inspection of scaffolding and certification. Installation of scaffolding.

Using scaffolding prior inspection and certification and collapse of scaffolding.

P A 3 3 9P 6A

H

• Ensure proper supervision while undertaking the job.

• Inspect the scaffolding prior to use by a competent person.

• Use Mandatory PPE’s (Safety Helmet, Safety Shoes, Coverall, Safety Glass and Safety Hand Gloves) including fall protection devices.

3 1 3P 3A

L



Work Activity:

Substation work / Maintenance.





Step No



Harm to

C

P

R

Initial Risk


C

P

R

Residual

Risk


Page 2 of 2

Form 136/Rev.01 dt 29.11.11

5. Re energizing the equipment.

Conducting maintenance work on high voltage supply lines / equipments resulting in electrocution.

P A 4 3

12P 12A

H

• Re energize the equipment only after ensuring that the task has been suitably completed.

• Maintenance work to be undertaken on high voltage equipments only using tools designated to work with high voltage lines.

• Ensure availability of fire extinguishers (CO2) type.

3 1 3P 3A

L



Work Activity:

Transformer shut down / Maintenance.





Step No



Harm to

C

P

R

Initial Risk


C

P

R

Residual

Risk


Page 2 of 3

Form 136/Rev.01 dt 29.11.11

Erection of scaffold on uneven place and collapse.

P A 3 3 9P 9A

H

• Erection of scaffolding / use of ladders for access

to be done as per safety rules and recommendations. 3 1

3P 3A

L

3.

Erection of scaffolding for access to work area.

Interference with adjacent service structures and damage to plant equipment.

P A 3 3 9P 9A

H

• Only competent persons to do maintenance work. • Work to be properly supervised at all times. • Proper house keeping to be maintained at site. • Safe lifting procedures to be followed.

3 1 3P 3A

L

Non standards components used in erections.

A 3 2 6A M

• A trained first aider to be available at all times during maintenance work.

• Emergency contact Nos. must be available with the persons executing the work.

• All personnel to be trained on the use of fire extinguishers.

• Use Mandatory PPE’s (Safety Helmet, Safety Shoes, Coverall, Safety Glass and Safety Hand Gloves).

3 1 3P 3A

L



Work Activity:

Transformer shut down / Maintenance.





Step No



Harm to

C

P

R

Initial Risk


C

P

R

Residual

Risk


Page 3 of 3

Form 136/Rev.01 dt 29.11.11

4.

Lifting of equipments and transformer accessories.

Falling equipments during lifting due to failure of lifting accessories of lifting equipments. Injury to workforce.

P A 3 3 9P 9A

H

• Work to be properly supervised at all times. • Proper house keeping to be maintained at site. • Safe lifting procedures to be followed. 3 1

3P 3A

L



Work Activity:

Spray painting.





Step No



Harm to

C

P

R

Initial Risk


C

P

R

Residual

Risk


Page 2 of 2

Form 136/Rev.01 dt 29.11.11

4. Execution of the job.

Splashing of paint on body eyes causing damage to eyes and skin diseases.

P 3 3 9P H

• Use proper safety goggles while doing the painting

work as splashing of paint can occur resulting in damage to eyes.

• Never use empty paint drums as sitting aids as empty drums can contain vapors and result in an explosion or fire.

3 1 3P L

Spillage of paint on ground causing land pollution.

P E 3 3 9P 9E

H

• Use drip trays to contain the spillage of paint stored

in bulk quantities. • Give training and stress on importance of personal

hygiene. • Use Mandatory PPE’s (Safety Helmet, Safety

Shoes, Coverall, Safety Glass and Safety Hand Gloves) while doing painting works including the use of respirators / face mask.

3 1 3P 3E

L



Work Activity:

Diesel generator set operations





Step No



Harm to

C

P

R

Initial Risk


C

P

R

Residual

Risk


Page 2 of 3

Form 136/Rev.01 dt 29.11.11

Air pollution and suffocation to personnel due to inhalation of toxic fumes such as CO.

P E 3 3 9P 9E

H

• Reduce emission of toxic gases and prevent air pollution.

3 1 3P 3E

L

Shorting of battery terminals causing fire and explosion.

P A E 3 3

9P A E

H

• Install spark arrestor at the outlet of the DG set. • Only trained personnel to operate the DG set. • Safety induction training to be given for all

personnel. • Use Mandatory PPE’s (Safety Helmet, Safety

Shoes, Coverall, Safety Glass and Safety Hand Gloves) while doing painting works including the use of respirators / face mask.

3 1 3P A E

L

2.

Use and servicing of diesel generator sets. Continued..

Fire and explosion due to improper voltage selection.

P A 3 3 9P 9A

H

• Proper neutral / earth continuity check to be carried out. Check for correct voltage / phase lines when connecting the DG set. 3 1

3P 3A

L

Contact of personnel with rotating or moving rotor blades and injury.

P 3 3 9P H • Use suitable guards or mesh to prevent operator’s

body parts to come in contact with the rotor blades.

3 1 3P L



Work Activity:

Diesel generator set operations





Step No



Harm to

C

P

R

Initial Risk


C

P

R

Residual

Risk


Page 3 of 3

Form 136/Rev.01 dt 29.11.11

Incorrect fuel used or leaking fuel lines causing spillage and damage to equipment.

P A E 3 3

9P 9A 9E

H

• Avoid spillage / leakage of the fuel.

3 1

3P 3A 3E

L



Work Activity:

Overhead lights Maintenance / Repair work, street lighting work.





Step No



Harm to

C

P

R

Initial Risk


C

P

R

Residual

Risk


Page 2 of 2

Form 136/Rev.01 dt 29.11.11

3.

Isolation / lock out / tag out of the power supply.

Working without proper lock out/ tag out isolation procedures and electrocution to personnel.

P A 3 3 9P 9A

H

• Proper lock out/ tag out/ electrical isolation to be done before commencing the electrical maintenance operation.

3 1 3P 3A

L

4.

Replacement of damaged lighting accessories.

Contact with electric supply lines and electrocution and burns to workers.

P A 3 3 9P 9A

H

• Proper supervision to be ensured at all times. • Use equipments and instruments which are

intended to use with high voltages only.

3 1 3P 3A

L

5. Completing the maintenance procedures.

Conducting maintenance without using proper PPE’s and safety devices and causing electrocution arcs and burns.

P A 3 3 9P 9A

H

• Use Mandatory PPE’s (Safety Helmet, Safety Shoes, Coverall, Safety Glass and Safety Hand Gloves) including rubber / Elect. Grade hand gloves, Face shield while doing electrical maintenance operations.

3 1 3P 3A

L



Work Activity:

Water Heaters repair and maintenance.





Step No



Harm to

C

P

R

Initial Risk


C

P

R

Residual

Risk


Page 2 of 2

Form 136/Rev.01 dt 29.11.11

4.

Conducting the repair work and reassembly of the equipment. Continued…

Maintenance work done with out using proper PPE’s causing electrocution, arcs and burns.

P A 3 3

9P 9A 9E

H

• Proper first aid facilities must be made available near the maintenance work being carried out.

• Only competent persons to do the repair work. • Before reassembling ensure that all electric cords

are tightly screwed in place and no connector is loose.

• Ensure proper earthing. • Use Mandatory PPE’s (Safety Helmet, Safety

Shoes, Coverall, Safety Glass and Safety Hand Gloves) including rubber / Elect. Grade hand gloves, Face shield while doing electrical maintenance operations.

3 1

3P 3A 3E

L



Work Activity:

Painting works





Step No



Harm to

C

P

R

Initial Risk


C

P

R

Residual

Risk


Page 2 of 2

Form 136/Rev.01 dt 29.11.11

3. Execution of painting job. Continued…

Spillage of the paint and solvents.

P A E 3 3

9P 9 A9E

H

• Avoid spillage of paint. • Use Mandatory PPE’s (Safety Helmet, Safety

Shoes, Coverall, Safety Glass and Safety Hand Gloves) including face mask for protection from paint fumes.

3 1

3P 3A3E

L



Work Activity:

Transportation of persons / equipment.





Step No



Harm to

C

P

R

Initial Risk


C

P

R

Residual

Risk


Page 2 of 2

Form 136/Rev.01 dt 29.11.11

2.

Transportation of persons / equipment. Continued…

Accidents occurring due to titling or collision with other vehicles due to over speed.

P A 3 3 9P 9A

H

• Speed limit to be maintained while driving (max speed 30 km/hr)

• Care to be taken while driving in foggy conditions. • Regular inspection and periodic maintenance must

be done for the vehicles and equipments.

3 1 3P 3A

L

general procedure hse-gen-04 activity risk ... - qc…qc.imeco.com/qhse/database/maintenanace hse...

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