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| 3.1 Prevention Safety cases, which include offshore, above sea surface petroleum infrastructure, must describe how the following requirements are achieved Offshore helicopter landing areas must comply with relevant national and international guidelines Aids to navigation for offshore installations must comply with relevant national and international guidelines and All above sea surface offshore petroleum infrastructure must have AIS complying with relevant national and international requirements. 3.2 Control and Detection The safety case must describe how the following requirements are achieved with regard to control and detection of Major Accident Hazard Petroleum infrastructure shall have suitable means to detect hazards and then achieve a safe condition, if necessary, by shutting down For petroleum infrastructure where a release of a substance can give rise togas or vapour with the potential fora Major Accident Hazard, an appropriate detection system shall be installed to detect that hazard and initiate a suitable response For petroleum infrastructure where afire could occur with the potential to create a Major Accident Hazard, an appropriate detection system shall be installed to detect the fire and initiate a suitable response All hydrocarbon risers on offshore Facilities, shall have a remotely operated topside fail-safe isolation valve located at the lowest practicable point on the riser that allows safe access for testing and maintenance, has a minimum of pipework and potential 20 The specific requirements of the Irish Coast Guard are relevant here. leak points outboard of this valve and is protected from fire and explosion as far as is reasonably practicable All pipelines that contain or may contain hydrocarbons crossing the boundary fence of an onshore Facility shall have a remotely operated fail-safe isolation valve suitably located and All Facilities shall have appropriate emergency power such that loss of the normal power supply does not impair the ability to manage Major Accident Hazards. Download 0.73 Mb. Share with your friends:
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