HSECES Identification
HSECES is defined as parts of an installation and such of its structures, plant equipment & systems (including computer programs) or any part thereof, the failure of which could cause or contribute substantially to; or a purpose of which is to prevent or limit the effect of a major accident or any accident with severe or catastrophic consequences.
Examples of HSECES are as follows:
- Hydrocarbon containment
- Overpressure protection
- Emergency Shutdown Systems
- Fire and Gas System
- Flare and blow down systems
- Emergency power
- Escape routes
- Permit to work systems
- HVAC System
Major Accident Hazard (MAH)
A Major Accident is an uncontrolled occurrence / incident that leads to Catastrophic or Severe consequences to the health and safety of people, assets, the environment and the company reputation.
Some of the examples of Major Accidents are:
- Loss of containment of flammable and / or toxic fluids leading to fire, explosion and / or toxic injury
- Events resulting in structural failure which could lead to further progressive collapse
- Loss of stability of mobile offshore installation
- Well blowouts
- Ships colliding with offshore installations or onshore jetties used for bulk loading explosive, flammable or toxic substances.
- Other external hazards affecting onshore and offshore sites e.g., work barges alongside fixed installations, helicopters and aircraft, road/marine product tankers.
- Fire, explosion or the release of a dangerous substance involving death or serious injury to persons on the installation or engaged in an activity on or in connection with it;
- Collision of a helicopter with the installation;
- Any event arising from a work activity involving the death or serious personal injury to persons on the installation or engaged in an activity in connection with it.
Major accidents exclude ‘Occupational accidents’ caused by ‘Occupational hazards’. Occupational hazards are those hazards with the potential of causing accidents through slips trips, falls, crushing, drowning, electrocution etc.
The identification of HSECES will not consider occupational accident scenarios.
HSECES Identification
The methodology for identification of HSECES is as follows,
- Identify the Major Accident Hazards (MAH) of the facility that is under project phase(s) through HAZID reports or other safety studies reports.
- Identify the MAH safety barriers (such as to prevent / mitigate / control / emergency response)
- A Bow Tie workshop shall be conducted to identify the HSECES for each MAH with the participation of required technical teams.
- Each MAH Hazard & Effects register sheet list shall be reviewed during bow-tie workshop for identification of Barriers & Recovery Preparedness Measures.
- List out all the HSECES for each MAH scenario.
- List out HSECES sub-elements as applicable, for each identified HSECES.
- Classify & record the functional role of HSECES in the Management of MAH. The functional role can be Inherent Safety / Prevent / Control / Mitigate / Emergency Response etc.
- Record the HSECES functional role justification i.e, why it is HSECES, its purpose and how is it linked to the management of MAH.
- Record the MAH reference number for each HSECES.
- Prepare the HSECES Register
HSECES Identification
HSECES is defined as parts of an installation and such of its structures, plant equipment & systems (including computer programs) or any part thereof, the failure of which could cause or contribute substantially to; or a purpose of which is to prevent or limit the effect of a major accident or any accident with severe or catastrophic consequences.
Examples of HSECES are as follows:
- Hydrocarbon containment
- Overpressure protection
- Emergency Shutdown Systems
- Fire and Gas System
- Flare and blow down systems
- Emergency power
- Escape routes
- Permit to work systems
- HVAC System
Major Accident Hazard (MAH)
A Major Accident is an uncontrolled occurrence / incident that leads to Catastrophic or Severe consequences to the health and safety of people, assets, the environment and the company reputation.
Some of the examples of Major Accidents are:
- Loss of containment of flammable and / or toxic fluids leading to fire, explosion and / or toxic injury
- Events resulting in structural failure which could lead to further progressive collapse
- Loss of stability of mobile offshore installation
- Well blowouts
- Ships colliding with offshore installations or onshore jetties used for bulk loading explosive, flammable or toxic substances.
- Other external hazards affecting onshore and offshore sites e.g., work barges alongside fixed installations, helicopters and aircraft, road/marine product tankers.
- Fire, explosion or the release of a dangerous substance involving death or serious injury to persons on the installation or engaged in an activity on or in connection with it;
- Collision of a helicopter with the installation;
- Any event arising from a work activity involving the death or serious personal injury to persons on the installation or engaged in an activity in connection with it.
Major accidents exclude ‘Occupational accidents’ caused by ‘Occupational hazards’. Occupational hazards are those hazards with the potential of causing accidents through slips trips, falls, crushing, drowning, electrocution etc.
The identification of HSECES will not consider occupational accident scenarios.
HSECES Identification
The methodology for identification of HSECES is as follows,
- Identify the Major Accident Hazards (MAH) of the facility that is under project phase(s) through HAZID reports or other safety studies reports.
- Identify the MAH safety barriers (such as to prevent / mitigate / control / emergency response)
- A Bow Tie workshop shall be conducted to identify the HSECES for each MAH with the participation of required technical teams.
- Each MAH Hazard & Effects register sheet list shall be reviewed during bow-tie workshop for identification of Barriers & Recovery Preparedness Measures.
- List out all the HSECES for each MAH scenario.
- List out HSECES sub-elements as applicable, for each identified HSECES.
- Classify & record the functional role of HSECES in the Management of MAH. The functional role can be Inherent Safety / Prevent / Control / Mitigate / Emergency Response etc.
- Record the HSECES functional role justification i.e, why it is HSECES, its purpose and how is it linked to the management of MAH.
- Record the MAH reference number for each HSECES.
- Prepare the HSECES Register