Document No
Revision No
Effective Date
Pages
HOT WORKS
Probability and Severity
Likelihood of Occurrence
ISOAF
6 X 6 Risk
Matrix
Severity of Consequence
Very
Likely
Likely
6
Unlikely
4
Very
Unlikely
Extremel
y
Unlikely
Remote
3
Minor
Moderate
Serious
Very
Serious
Catastroph
ic
Disastrous
1
2
3
4
5
6
5
2
1
Acceptable
Document Number:
Uncontrolled if printed, refer to EDMS for current version
Acceptable
If ALARP
Demonstrate
d
Unacceptabl
e
More
Controls
Required
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Document No
Revision No
Effective Date
Pages
HOT WORKS
CONSEQUENCE
Leve
l
Description
6
Disastrous
5
Catastroph
ic
4
Very
Serious
3
Human
ENVIRONMENTAL
MATERIAL OR
PRODUCTION
MEDIA
Internal: Multiple Fatalities
External: Multiple Fatalities
to local population
Pollution with massive and
lasting consequence for vast
Ecosystems of high ecological
interest
X> 100M€
Re-use the event by personalities (Political,
NGO’s etc.) followed by negative
mobilisation
Internal: Multiple Fatalities
External: 1 Fatality and / or
numerous injuries to local
population
Internal: Permanent disability or
Fatality. External: Injuries among
local population
Transport or security related 3rd
party fatality
Large scale Pollution in
Ecosystems of high ecological
interest
10M€ <x < 100M€
Report in International media, Negative
comments in social media or negative
response from social influencers
Pollution with significant
environmental impact
2M€ <x < 10M€
Report in National media, numerous
Negative comments in social media or
negative response from social influencers in
local language
Serious
Recordable with Lost time
including temporary but not
permanent disability
Pollution of small area with
Limited environmental impact
2ook€ <x < 2M€
Notices in National media and press agency
dispatch, Negative comments in social
media or negative response from social
influencers with plus foo followers
2
Moderate
Recordable without Lost time,
MTC including restricted work
Very localised Pollution with
Minimal environmental
impact
2ok€ <x < 2ook€
1
Minor
First Aid
Temporary exceed omission
standard. Below groups
statistical reporting standard
x < 2ok€
Local media (written press, tv)
Comments on local media websites,
Information on local social media, twitter,
discussion forums in local language.
No Reaction
Document Number:
Uncontrolled if printed, refer to EDMS for current version
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Document No
Revision No
Effective Date
Pages
HOT WORKS
PROBABILITY
Leve
l
6
Description
Definition
Very Likely Expected to occur several times during plant lifetime
P
People
E
Environment
5
Likely
Could occur several times during plant lifetime
A
Asset
4
Unlikely
Could occur once for every 10 – 20 similar plants over 20 – 30 years of plant
lifetime
R
Reputation
3
Very
Unlikely
One time per year for at least 1000 nits
One time for every 100-200 similar lants in the world
Has already occurred but company has taken corrective action
2
Extremely
Unlikely
An event that can be expected to occur several times during the festival / event
construction.
1
Remote
Possible but never or seldom occurred over a 20–30-year period for a large number
of sites <1000.
Document Number:
Uncontrolled if printed, refer to EDMS for current version
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Revision No
Effective Date
Pages
HOT WORKS
RA- 022
002
25/10/2024
List of abbreviations
Project:
TIS
PD – Project Director.
TM – Transport Manager
SUP – Supervisor (per discipline)
CM – Construction Manager
LM – Logistics Manager
PLM – Plant Manager
CO - Crane Operator
WI – Work Instruction
DR - Driver
Document Number:
Uncontrolled if printed, refer to EDMS for current version
HSE – HSE Dept (any)
FOR – Foreman (per discipline)
LS – Lifting Supervisor
AP – Approved Person
MD – MEWP Driver
RIG – Rigger
SSWP – Site Safety Working Procedure
POW – PowerPoint
SM – Store manager
Nur – Nurse
MM– Maintenance Manager
MEPM – MEP Manager.
CFO- Chief Fire Officer
PO
- Purchasing Officer.
JSA – Job Safety Analysis
BS – British Standard
Page 1 of 9
MC – Muster Captain
2023
Document No
Revision No
Effective Date
Pages
HOT WORKS
Document Number:
Uncontrolled if printed, refer to EDMS for current version
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Impact / Consequence
Item
Needs /
Activity /
Product
Risk / Aspect / Hazard
P E
A
Risk Rating
Residual RR
R
S
P
R
S
•
•
Uses of welding
machines
•
•
•
•
•
•
•
•
Electrocution
Toxic Fumes and Gases
Fire and explosion
Burn from Hot object
and sparks
UV/Arc-Eye
Poor managed cables
Noise
Slipping and tripping
•
•
•
•
HOT WORKS
P E A
•
•
R •
•
Fatality
Serious injury
Minor injuries
Property damage
Environmental
damage
•
•
•
•
•
•
•
•
4
5
•
20
•
•
•
•
•
•
•
•
•
•
•
•
Uses of acetylene
and oxygen gas
•
•
•
•
•
•
•
Fume and gases
Fire and explosion
Eye injuries
Skin irritation
Asphyxiation
Heat-stroke
Fire burns
Document Number:
Uncontrolled if printed, refer to EDMS for current version
P E A
•
•
•
R
•
•
Additional
Controls
Control Measures
Fatality
Serious injury
Minor injuries
Property damage
Environmental
damage
•
•
•
5
5
25
•
•
Toolbox talk meeting and JSA shall be conducted prior
to work
Only Qualified and trained personnel will perform
welding activity
Permit to work shall be adhered in daily basis
Welding area shall be isolated
Welding activity shall be conducted in well ventilated
area or Local Exhaust Ventilation (LEV) system shall
be provided for indoor ventilation
All flammables shall be kept away from the welding
Carry out the required pre-welding checks
Welding helmets with side-shields shall be used
Respiratory protective equipment (RPE) to be used
Good Housekeeping shall be maintained
Cable roller shall be used
Electric cable shall be double insulated with
appropriate capacity and in good condition
Equipment shall be fitted with Ground Fault Circuit
Interrupter (GFCI)
Provide suitable fire extinguisher near close to welding
area
Fire watcher shall be in place
Fire watcher shall patrol welding area
Firewatcher shall not leave while welding is being
completed or for 20 minutes afterwards
Firewatcher shall ensure area is in compliance with
PTW
Firewatcher shall raise alarm in the event of a fire
Fire checklist shall be completed
Welding machine and other equipment used shall
inspected prior to use
Avoid welding with SIMOPS
Provide the fire resistance welding curtain when work
is close to other activities
Long sleeve fire resistance clothing shall be worn
Long sleeve leather gloves, body apron, arm and leg
cover shall be used in large and prolonged welding
Allow hot metal to cool before touching
Toolbox talk meeting and JSA shall be conducted prior to
work Conduct a fire check prior to start using gas cylinders
Provide a hot work permit prior to that the activity
Flammable or combustible materials shall be kept away
from the area of gas welding/cutting
Only qualified and trained person shall be used to perform
gas welding and cutting operations
Check for leaks prior to use
4
5
P
2
1
Page 2 of 9
PIC
Due Date
SUP
CM
HSE
AP
Prior start of
hot works
activities
SUP
HSE
SM
PO
AP
Prior start of
hot works
activities
RR
8
5
2023
Impact / Consequence
Item
Needs /
Activity /
Product
Risk / Aspect / Hazard
P E
A
Risk Rating
Slip, trip and falling
Chemical reactions
Document Number:
Uncontrolled if printed, refer to EDMS for current version
Additional
Controls
Control Measures
S
•
•
Residual RR
R
P
R
S
P
PIC
RR
•
Gas cylinder shall be transported using trolley, secured with
chains and kept in upright position
• Transportation shall be in well ventilated vehicle were
required to transport on longer journeys
• Hoses shall be purged prior to use
• Acetylene and Oxygen gas cylinders shall be stored
separately in a cage by at least 20 feet and sign to be
installed.
• Cylinders shall be stored upright in dedicated open storage
area and secured at all times
• Secure cylinders always to prevent them from falling,
whether empty or full
• Cap shall be put in all cylinders when not in use or in
transportation
• Visual inspection shall be conducted to all equipment prior
to start using the gas cutting setup
• Fire watcher shall be provided in an area of the gas cutting
activity
• Provide personal protective equipment to the workers
concerned against the hazards during the cutting process i.e
boots, gauntlets, eye protection, body apron, long sleeve fire
resistant clothing
• Use eye and face protection, a face shield with appropriate
UV protection is needed
• Cylinders shall not be rolled on their sides, carried, or
hoisted
• Cylinder valve couplings should be free of debris before
attaching a regulator
• Only friction lighters shall be used to ignite torches
• Only approved green oxygen hoses with righthand threaded
couplings and approved red fuel gas hoses with left-hand
threaded coupling
• The system shall be fixed with flashback arrestors and nonreturn valve
• Ensure all valves, pressure regulator and gauges are in
working condition
• Fire extinguisher shall be provided near the area of gas
cutting activity
• Ensure gas hoses are protected from fires, hot objects and
away from walkways
• Ensure that pressure regulator is properly installed amd
tightened and without leak.
• Ensure there no leak from cylinders to torch
• Always close the cylinder valve and depressurized when not
in used.
• Acetylene should not be used in contact with materials
that can react violently with it, such as copper, silver, or
mercury
Page 3 of 9
2023
Due Date
Impact / Consequence
Item
Needs /
Activity /
Product
Risk / Aspect / Hazard
P E
A
Risk Rating
Residual RR
R
S
P
R
S
•
Uses of grinder
machine
•
•
•
•
•
•
•
•
•
•
•
•
Noise
Rotating disc and
entanglement
Disk breakage
Flying metal particles
Fire sparks
Electrocution
Contact with
uncontrolled grinder
Fumes and metal dust
Slip, trip and falling
Kickback
•
•
•
•
•
•
P
A
•
•
•
Serious injury
Minor injuries
Property damage
•
•
•
4
5
20
•
•
•
•
•
•
•
•
•
•
•
•
Document Number:
Uncontrolled if printed, refer to EDMS for current version
Additional
Controls
Control Measures
Toolbox talk meeting and JSA shall be conducted prior to
work
All grinder shall be fixed with safety guards
Grinding activity shall be performed under permit to work
(Hot work)
Visual inspection shall be conducted to the grinder prior to
using and must be in good condition, the defective
equipment shall not be used
Defective equipment shall be removed and quarantined and
reported to supervisor
Electrical lead shall be protected from damage, the
damaged cable shall not be used
Flammable or combustible materials shall be kept away
from the area of grinding
Fire extinguisher shall be present when grinding activities
are taking place
Only grinder with dead man switch shall be used and shall
not be bypassed.
Note On/off lock switch must not be used during operation
Grinder shall not be modified in any way
Loose clothes and Jewellery shall not be allowed to be used
when working with grinder machine
Only competent and experienced personnel will be allowed
to operate the machine
Ensure size of the disc matches with that of the grinder
All portable grinders shall be complete with non-electric
conductor handle. Removal of the handle during use is
prohibited
Each grinder shall be inspected and labelled (PAT
Inspection)
Abrasive wheels, grinding or cutting discs without the
manufacturer’s maximum RPM marked shall not be used.
RPM (rotation per minute) of the wheel shall be more than
a grinding machine.
Cutting Disks shall be used for Cutting only and Grinding
disks for Grinding only.
The machine should be operated at the correct speed
for the wheel being used
The machine should use the correct type and size of the
wheel for the material being worked on
Proper PPE, including double eye protection such as the
use of Glasses underneath of a face shield and dust mask,
gloves, shall be worn by all personnel operating grinder
Ear Plugs shall be worn at all times.
Electric extension cable shall be run neatly in a manner and
hang on insulated hangers that do not cause tripping
hazards.
4
P
2
Page 4 of 9
PIC
Due Date
SUP
HSE
SM
PO
AP
Prior start of
hot works
activities
RR
8
2023
Impact / Consequence
Item
Needs /
Activity /
Product
Risk / Aspect / Hazard
P E
A
Risk Rating
Residual RR
R
S
P
R
•
•
•
•
•
•
•
•
•
•
•
•
•
Housekeeping
•
•
•
•
•
Fire
Slip trip fall
Manual handling
Spill
P
Document Number:
Uncontrolled if printed, refer to EDMS for current version
A
Additional
Controls
Control Measures
•
•
Major Injury
Property Damage
3
4
12
S
P
RR
3
3
9
PIC
Screens shall be erected around grinding works where
possible to prevent flying sparks showering nearby
personnel/equipment or personnel removed from the area.
Grinding disc of the grinder shall be changed when the
power source is isolated, and the plug physically removed.
Expiry year of disk shall be visible on the disk. Do not use
an expired grinding disk.
Subjected Workpieces shall be secured using proper
clamps. Holding the workpiece onto one hand while
performing grinding operations is prohibited.
Due to the possibility of a wheel disintegrating during startup, employees shall be briefed not to stand directly in front
of the wheel as it accelerates to full operating speed.
Worn out / damaged, grinding, or cutting disc shall be
replaced. When changing the disc, proper tools shall be
use.
All worn out / damaged, grinding, or cutting disc shall be
returned to the stores at the end of each shift to ensure that
they are disposed properly.
Do not used cutting disk for grinding and vice versa.
Unplug the machine when not in used
Do not leave disk turning at the end of the task
Inspect work area prior to start of task
Ensure area is clean and clear
Keep spare equipment in a safe place away from the work
area
Put all welding rods in a dedicated metal container during
the welding activities
Page 5 of 9
2023
Due Date