ADNOC WMS PANEL ASSESMENT TOPICS

Electrical area classification

Class-1, Div-1, above 650 volt

Class-1, Div-2, in btw 250v & 650 v

UN classified area – Below 250v

Hazardous area classification

Zone 0 – Flammable atmosphere continuously present or exit for long time

Zone 1- Flammable atmosphere Likely present on normal operation

Zone 2- Flammable atmosphere Unlikely present on normal operation

Dust Zone area classification

Zone 20 – Explosive atmosphere continuously present in the form combustible dust/cloud

Zone 21– Explosive atmosphere Likely present in the form combustible dust/cloud

Zone 22– Explosive atmosphere Unlikely present in the form combustible dust/cloud

H2S Zone
R Zone (Red Zone)

 Description: The highest risk zone, where H₂S concentrations exceed 100 ppm (parts per million).
 Safety Measures:
o SCBA (Self-Contained Breathing Apparatus) required for entry.
o Restricted area; access only for trained and authorized personnel.
o Continuous H₂S monitoring and gas detectors required.
o Immediate evacuation is required if concentrations rise above safe levels.
o Emergency rescue teams must be on standby.

A Zone (Amber Zone)

 Description: Moderate risk zone, where H₂S concentrations range from 10 to 100 ppm.
 Safety Measures:
o Escape Respirators or Air-Purifying Respirators (APR) may be required.
o H₂S gas detectors should be used to monitor exposure levels.
o Entry into the area is only allowed with a valid PTW and appropriate PPE.
o Personnel should be trained in emergency response procedures.

Y Zone (Yellow Zone)

 Description: Low to moderate risk zone, where H₂S concentrations are below 10 ppm but may occasionally
exceed this threshold.
 Safety Measures:
o Personal gas monitors should be used to detect any increases in H₂S levels.
o Respirators may not be mandatory but should be available for emergency situations.
o Access allowed with standard work permits, with precautions in place for emergency evacuation.
G Zone (Green Zone)

 Description: The lowest risk zone, where H₂S concentrations are consistently below 10 ppm.
 Safety Measures:
o No special respiratory protection is typically required, but gas monitoring should still be conducted
regularly.
o Standard safety procedures are followed with minimal restrictions on access.

Proximity Hazard
Adjacent live equipment – High voltage electric panel, rotating machinery, High pressure pipe line

SIMOPS

Work nearby Confined space

Hazardous area

Traffic and moving equipment -

Overhead work – Scaffolding, crane lifts, work at height

Power Tools
Power tools- Cutter, welding machine, Drilling machine, Chain saw…

Hazard- cut injury, Burn, E-shock, noise, Vibration, spark, fire and explosion, toxic fumes…

Precaution- 110v – m30Amp ELCB, Dead’s man switch, Machine guard, Disc RPM greater than machine RPM 100%
spark containment, Welding booth, Fire extinguisher, fire watcher, fire blanket, Double eye protection, leather
gloves, Apron, ear plug, Job rotation/rest period

Hand Tools
Hazard- wrong way of use, Due to defective condition use, Due to failure of right tool for right job, Due to wrong way
of carrying tool

LOTO- LOG OUT TAG OUT

Preparation – Shutdown – Isolation – Logout & Tag out – Stored energy check - Isolation verification

Access & Egress

Clear and unobstructed routes for workers and vehicle/equipment movements

Safe access to elevated or confined space

Emergency egress

Barricading and signage

SIMOPS and restricted areas- control access, authorize entry

Access control & monitoring

Stop work policy
There is an unsafe condition or unsafe behavior.
You observe a potential violation of HSE rules or procedures.
There is a risk to personnel safety, asset integrity, or the environment.
Work is being done without valid authorization or without a proper permit.

Conflict Activity
Definition:
Two or more tasks that, when done simultaneously, interfere with each other, increase
risks, or violate safety procedures.

Examples:

 Hot work conflicts with gas testing/confined space entry

 Lifting operations conflict with work at height
 Excavation conflicts with vehicle movement/scaffolding
 Electrical isolation conflicts with mechanical maintenance
 Hydro testing conflicts with hot work

Risks:

 Fire/explosion
 Injuries
 Equipment damage
 Environmental harm

Management:

 Identify in planning (JSA/RA)

 Review PTW conflicts
 Conduct SIMOPS meetings
 Apply controls and communicate
 No work without conflict resolution and SIMOPS plan

Emergency Response
Definition:
Immediate actions to control, mitigate, and recover from an emergency.

Types of Emergencies

1. Fire / Explosion
2. Gas Leak / Toxic Release
3. Oil Spill / Environmental Incident
4. Medical Emergency
 5. Confined Space Rescue
6. Equipment Failure / Collapse
7. Natural Disaster
8. Security Threat

Job Performer’s Role in an Emergency

1. Stop Work immediately (SWA).

2. Raise the Alarm (shout, activate call point, radio).
3. Evacuate safely to Assembly Point.
4. Account for your team (report missing persons).
5. Assist if trained (first aid, firefighting).

ADNOC ERP Steps

 Alarm & Notification

 Evacuation & Muster
 Headcount at Assembly Point
 ERT Activation
 Control Room coordination
 All Clear declaration

Key Roles

 Site Controller (OIM): Overall command

 ERT: Fire, rescue, first aid
 HSE: Safety & communication
 Muster Checkers: Headcounts

Emergency Equipment

 Fire extinguishers (CO2, Dry Powder)

 SCBA
 Gas detectors
 First aid kits
 Fire hoses
 Safety showers

Gas Testing
Authorized gas tester will do gas test

Oxygen level – 19.5 to 23.5,

H2S – less than 5 ppm,

CO less than 25 ppm,

Hydro carbon less than 5 ppm,

S02 less than 2 ppm,

Ammonia less than 25 ppm

Super Vision
Work team follow the HSE precautions

Effectiveness of control measures is maintained

SIMOPS protocol are followed

Working at Height (WAH)

Any work where a person could fall from one level to another, risking injury. ADNOC considers
work at height when the fall is over 1.8 meters or into a hazard (machinery, water, etc.).

Hazards

 Falls from ladders, scaffolds, platforms

 Falling objects hitting people below
 Collapse of working platforms
 Poor weather (wind, rain)
 Work without fall protection.
 Use damaged equipment.
 Work alone at height.
 Proceed without a rescue plan.

Precaution

1. Risk Assessment (JSA / RA) before starting.

2. PTW (Permit to Work) issued for WAH tasks.
3. Use Proper Equipment:
o Full-body harness with double lanyards
o Approved anchorage points
o Scaffolds with guardrails, toe boards
o Mobile Elevated Work Platforms (MEWPs)
4. Barricade & Signage below the working area.
5. Tool Lanyards to prevent dropping tools.
6. Weather Conditions monitored.
7. Training & Competency of workers mandatory.
8. Rescue Plan in place before work starts.

Lifting Operation
Any activity involving lifting, moving, or lowering loads using lifting equipment like cranes,
hoists, or forklifts.

Key Hazards:

 Load drop or shifting

  Crane overturning
 Contact with overhead power lines
 Struck-by incidents
 Equipment failure

 Poor communication Lift over people

 Exceed equipment capacity
 Use damaged lifting gear
 Lift in bad weather (high wind)

Control Measures:

1. Risk Assessment (JSA / RA) before the lift

2. PTW (Permit to Work) issued for lifting tasks
3. Competent personnel involved:
o Rigger
o Banksman
o Crane Operator
4. Approved Lifting Plan (required for critical lifts)
5. Pre-use inspection of equipment (slings, shackles, hooks)
6. Ensure load is within SWL (Safe Working Load) limits
7. Use taglines to control load movement
8. Barricade the lift area and keep unauthorized persons clear
9. Ensure effective communication (hand signals / radios)

Excavation
Excavation is any work involving the removal of earth to create a hole, trench, or
cavity. It includes digging activities using manual or mechanical means.

Key Hazards:

 Cave-ins or trench collapse

 Falling materials or equipment into the excavation
 Falling personnel
 Hazardous atmospheres (toxic gases, low oxygen)
 Underground utilities (electric cables, gas, water lines)
 Water ingress and flooding
 Mobile equipment movement near excavation edge
 Enter an unprotected excavation
 Work near unsupported edges
 Ignore water accumulation inside excavation
 Proceed without verifying utility clearances

Control Measures:

1. Risk Assessment (JSA / RA) prior to work

2. Permit to Work (PTW) must be approved
3. Excavation approved and marked on site drawings
4. Shoring, benching, or sloping to prevent collapse
5. Barricade and warning signs around excavation
6. Safe access and egress (ladders/ramps) provided
 7. Daily inspection by a competent person
8. Check for underground services before digging
9. Atmospheric testing for confined excavations
10. Keep heavy equipment away from edges
11. Emergency rescue plan in place

Welding, Cutting & Grinding

Hot Work activities that involve welding, cutting, and grinding generate heat, sparks, and
molten metal, posing fire, explosion, and health hazards.

Key Hazards:

 Fire and explosion (from sparks, hot metal)

 Burns and eye injuries (arc flash, flying particles)
 Toxic fumes and gases (welding fumes)
 Noise and vibration hazards
 Electrical shock (arc welding equipment)
 Oxygen displacement in confined spaces
 Flying sparks causing secondary hazards
 Perform hot work without a valid PTW
 Weld or cut near flammable materials without protection
 Use damaged cables or welding equipment
 Ignore fire watch and standby arrangements

Control Measures:

1. Conduct Risk Assessment (JSA/RA)

2. Obtain Hot Work Permit (PTW)
3. Clear the area of flammable materials or cover with fire blankets
4. Firewatcher with extinguisher on standby
5. Use appropriate PPE:
o Welding helmet with proper filter lens
o Fire-resistant clothing
o Safety gloves and shoes
o Hearing protection
6. Ensure proper ventilation/exhaust systems
7. Ground welding equipment properly
8. Barricade work area and display warning signs
9. No hot work in confined spaces without gas testing and ventilation
10.Conduct continuous gas monitoring where required

Ionizing Radiation
Ionizing radiation refers to energy emitted from radioactive sources that can ionize atoms,
potentially causing harm to living tissues. It includes alpha, beta, gamma rays, and X-rays.

Key Hazards:

 Radiation exposure leading to health risks (burns, radiation sickness)

  Long-term effects like cancer
 Genetic damage
 Environmental contamination
 Internal exposure by inhalation or ingestion
 Enter controlled areas without authorization
 Handle radioactive sources without proper training and PPE
 Ignore alarm signals or safety warnings
 Tamper with radiation safety devices

Control Measures:

1. Conduct Risk Assessment (JSA/RA) before any activity

2. Obtain necessary permits and regulatory approvals
3. Only trained and authorized personnel allowed
4. Use time, distance, and shielding principles to minimize exposure
o Time: Limit exposure duration
o Distance: Maintain safe distance from the source
o Shielding: Use barriers like lead shields
5. Personal dosimeters to monitor radiation exposure
6. Display radiation warning signs and restrict area access
7. Regular equipment and area monitoring for radiation levels
8. Emergency procedures and decontamination plans in place
9. Proper storage and handling of radioactive materials
10.Medical surveillance for workers exposed to radiation

Adnoc 10-LSR
Work Authorization

Confined space

Energy isolation

Bypassing safety controls

Toxic gas

Safe mechanical lifting

Working at height

Line of fire

Driving

Hot work

Hydrogen Sulphide
Hydrogen Sulphide is a highly toxic, flammable, and colorless gas with a characteristic rotten egg smell. It is
commonly found in oil and gas operations.

Key Hazards:

 Toxic inhalation hazard; can cause respiratory paralysis and death

  Flammable and explosive at certain concentrations
 Heavier than air; accumulates in low-lying areas
 Olfactory fatigue (loss of smell) at high concentrations
 Corrosive to metals

Exposure Limits (ADNOC Standard):

 Allowed working time- 8 Hours- Less than 5 ppm

 10 ppm: Occupational Exposure Limit (OEL)
 100 ppm: Immediately Dangerous to Life and Health (IDLH)

Health Effects:

 Low concentration: Eye and throat irritation, headaches

 Moderate concentration: Nausea, dizziness, coughing
 High concentration: Unconsciousness, respiratory failure, death

Control Measures:

1. Conduct Risk Assessment (JSA/RA)

2. Continuous H₂S gas monitoring in hazardous areas
3. PTW system with H₂S hazard identification
4. Use of Personal H₂S gas detectors
5. Wear approved respiratory protection (SCBA) in high-risk zones
6. Emergency response plan in place (H₂S drill readiness)
7. Wind direction indicators to help safe evacuation
8. Training and certification for H₂S awareness and response
9. Access control to high-risk areas
10. Regular maintenance and calibration of detection systems

Emergency Response Actions:

11. Don SCBA and evacuate to upwind safe assembly point

12. Raise the alarm and inform the control room
13. Assist affected personnel if trained (use SCBA)
14. Perform muster check and wait for “All Clear” signal

Equipment and Machinery

Definition: Equipment and machinery refer to tools, devices, and mechanical systems used to perform various
industrial tasks. This includes fixed machines (e.g., pumps, compressors) and mobile equipment (e.g., cranes,
forklifts).

Key Hazards:
  Mechanical hazards (moving parts, rotating equipment)
 Entanglement, crushing, and caught-in incidents
 Noise and vibration hazards
 Equipment failure and malfunction
 Electrical hazards from powered machinery
 Human error due to poor training or fatigue
 Operate faulty or damaged equipment
 Bypass safety guards or interlocks
 Wear loose clothing near rotating machinery
 Ignore warning signs and alarms

Control Measures:

1. Conduct Risk Assessment (JSA/RA) for equipment use

2. Permit to Work (PTW) for high-risk machinery operations
3. Ensure machinery is properly maintained and inspected
4. Use guards and barriers on moving parts
5. Authorized and trained personnel only to operate machinery
6. Follow Lock Out / Tag Out (LOTO) procedures during maintenance
7. Maintain safe working distances from operating machinery
8. Wear appropriate Personal Protective Equipment (PPE)
9. Implement noise control measures and hearing protection if required
10. Follow manufacturer’s instructions and safety procedures

Confined Space Entry

Definition: A confined space is an enclosed or partially enclosed area with limited entry or exit, not designed for
continuous occupancy, and may contain hazardous conditions.
Examples: Tanks, vessels, pits, silos, sewers, pipelines.

Key Hazards:

 Oxygen deficiency or enrichment

 Toxic gases and vapors (H₂S, CO)
 Flammable atmospheres
 Engulfment hazards (liquids, solids)
 Restricted movement and access

 Poor visibility and communication Enter a confined space without authorization and permit
 Ignore gas test results or alarms
 Work alone inside confined spaces
 Use equipment not rated for hazardous areas

Control Measures:

1. Conduct Risk Assessment (JSA/RA)

2. Obtain and display a valid Confined Space Entry Permit (PTW)
3. Atmospheric testing before and during entry (Oxygen, Toxic, Flammable gases)
4. Ensure adequate ventilation inside the space
5. Use approved Personal Protective Equipment (PPE) including SCBA if required
6. Appoint a trained standby person outside the confined space
 7. Use approved entry and exit procedures, including rescue plans
8. Continuous communication between entrant and standby person
9. Ensure lighting and intrinsically safe equipment
10. Emergency rescue equipment on standby (Tripod, Winch, Harness)

Source of Ignition
Definition: A source of ignition is any heat or spark-producing element that can ignite flammable materials, gases,
vapors, or dust, leading to fire or explosion hazards.
Common Sources of Ignition:

 Open flames (matches, lighters, welding torches)

 Sparks from tools or machinery (grinding, cutting)
 Hot surfaces (engine parts, pipes)
 Electrical equipment (motors, switches, lights)
 Static electricity
 Lightning strikes
 Spontaneous combustion (oxidizing materials)
 Smoking materials (cigarettes, cigars)
 Allow open flames near flammable substances
 Use damaged electrical equipment in hazardous areas
 Work without appropriate fire protection and extinguishers available
 Ignore fire and explosion hazard signage

Control Measures:

1. Identify potential sources of ignition before starting work

2. Use proper grounding and bonding techniques to prevent static buildup
3. Inspect electrical equipment for defects and ensure proper maintenance
4. Use intrinsically safe tools and equipment in hazardous areas
5. Keep hot work away from flammable materials or use fire blankets
6. Follow Safe Work Procedures for handling combustible materials
7. Prohibit smoking in designated hazardous zones
8. Use explosion-proof or flameproof electrical equipment where applicable
9. Implement proper ventilation systems to prevent gas accumulation
10. Conduct regular safety inspections and audits of ignition sources