Appendix 3 - Guidance on SCE groups and minimum performance assurance levels EP 2009-9009 Restricted 37 SCE group listing SCE goal Typical equipment types Description Minimum level SCE group SI001 SCE group title Structures Subsea/Vessel Hull/GBS/Foundation Structures Primary subsea, vessel hull, gravity based or foundation structures. To provide and maintain structural integrity under all expected actions through service life. Provide sufficient robustness to maintain availability of critical systems during a major incident Foundations, including piles and pile guides and concrete supports Jacket and substructure, Gravity Based Structure (GBS) • Vessel hull steel work and plating Vessel bulkheads, underwater void spaces and double bottoms Seawater draw down system for GBS • Foundations, including piles and pile guides, concrete supports and shallow foundations At system level, e.g. hull SCE group SI002 SCE group title Topside Structures Topsides or surface primary structure. To provide and maintain structural integrity under all expected actions through service life, and to provide sufficient robustness to maintain availability of critical systems during a major incident Integrated deck/cellar deck/module support frame/deck trusses • Module structure/module supports • Bridge structure and supports • TR structure, plating (skin) and supporting structure • Topsides anchor and mooring points, load transfer system • Structural steel supporting safety critical process equipment • Dropped object protection • muster platforms and lifeboat davits • Escape and evacuation structure and supports • Flares, vents and drilling derrick structures • Crane pedestals • Helidecks and supporting structure At module and elevation level SCE group SI003 SCE group title Heavy lift cranes and Mechanical handling equipment Heavy lift cranes and mechanical handling equipment are lifting appliances. To maintain suitable integrity so that loads, or any lifting component, does not fail in a manner that could cause or contribute to a major incident Overhead gantry crane in hydrocarbon process area Offshore platform pedestal crane At item level, i.e. per crane
