Bowtie slide to GHSE
- 1. 1 Bow Tie Risk Assessment
- 2. 17 July 2016 息 PETRONAS 2013 2
- 3. Hazard Release Event PREVENT Containment DETECT Gas/Flame Detection CONTROL ESD, Blowdown MITIGATION Fire Protection, Deluge RESCUE & RECOVERY Lifeboat, Rescue Boat The Swiss Cheese Barrier Model Operating Integrity determines the number and size of the holes in the barriers. Poor Operating Integrity eats at the barrier
- 4. Operating Integrity Good operating integrity minimizes the number of holes, minimizes the time that temporary holes exist and limits their size. PHA, Operating Procedures & PSI, SCE Bypass, PTW, JHA, MOC, SOL, Operating Envelopes, Alarm Management, Competency Poor operating integrity increase the number of holes, increases the time that temporary holes exist and increases their size.
Editor's Notes
- #2: Key Notes: The bowtie model provides for the assessment of hazards in order to: Identify the potential hazard release, escalation and consequence scenarios, Identify the controls (i.e. barriers and escalation factor controls) required to effectively manage these Hazards (e.g. the HSE critical Elements, HSE Critical Tasks and Procedures) Support the ALARP demonstration Provide visibility and communicate the above information to those responsible for managing, or who may be affected by the hazards In the event of an event of an incident, have the ability to relate causes of incidents to the controls that failed, thus enabling improved incident learning and prevention.