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
