Safety Critical Element Management Manual EP 2009-9009 Restricted 44 SCE group listing (continued) SCE goal Typical equipment types Description Minimum level SCE group PS005 SCE group title Fire Water Ring Main and Other Distribution Systems Firewater ring main distribution system from the fire pump discharge to the end-users. To distribute sufficient firewater to all firewater systems Firewater tank Pipework (including supports) from the 1st manual isolation valve downstream of fire pump discharge to the end-user activation valve Deluge set inlet isolation valve Helideck monitor manual isolation valve Sprinkler system manual isolation valve Fire hydrant isolation valve Fire hose isolation valve Low ring main pressure switches Fire main pressure control valves At system/area level SCE group PS006 SCE group title Passive Fire Protection Passive fire protection to maintain structural integrity in the event of a fire. To limit the effect of afire on structure, plant, safety systems and personnel Passive Fire protection coatings or barriers protecting critical structure, plant and safety systems. At area level SCE group PS007 SCE group title Gaseous Fire Protection Systems Gaseous fire protection Systems for extinguishing fires in an equipment enclosure. To mitigate the effects of afire and to prevent escalation of fires in enclosed areas CO 2 system for switch room At system level SCE group PS008 SCE group title Fine Water Spray (FWS) Systems Fine water spray systems for extinguishing fires in an equipment enclosure. To mitigate the effects of afire and to prevent escalation of fires in enclosed areas, e.g. diesel engine enclosures. Protection to generators turbines At system level SCE group PS010 SCE group title Power Management System Power management system to control the operation of critical electrical switchgear through shedding of noncritical loads. To maintain the stability of the main power generating system by load sharing and shedding. Electrical network monitoring and control systems At system level
