Small sites may use a single diesel set, but larger premises should share load between two or more machines, with interlocked switching so essential loads see only one running supply. Each set is itself a single point of failure, so maintenance routines should aim to cut the chance of failure, addressing common causes: overload (inadequate testing on actual site load), cold engine (heater off or failed), flat batteries (charger off or failed, cold batteries), and cold room (room heater off or excessive air change at standby). Best practice is N+1: two sets each able to carry full load or three each able to carry half, agreed early with the Group and designers.
This control maps to 1 controls across 1 other frameworks. If you already hold one of them, the evidence you collected for it is the starting point here rather than new work.
Every mapping shown was judged rather than inferred from wording similarity, and the ones that failed review are published too. See the coverage reports and what was rejected.
The graph holds this control, the 1 it maps to, and the evidence behind each claim, over MCP and REST.