Discuss Where is reg for singular main switch in the UK Electrical Forum area at ElectriciansForums.net
Aahh, perhaps I should have said; reg 462.1.201!Huh?
537.1.3 is about plugs and sockets for luminaires.
Thanks @happysteve for your inspiration. Would the internal main switch in each CU meet 462.1.201?The Schedule of Inspections IET model forms give you a clue: item 7.3 in the EIC Schedule of Inspections, or item 4.6 in the EICR Schedule of Inspections.
Either way, the answer is "462.1.201" as far as it goes. The Reg states:
"A main linked switch or linked circuit-breaker shall be provided as near as practicable to the origin of every installation as a means of switching the supply on load and as a means of isolation.
A main switch intended for operation by ordinary persons, e.g. of a household or similar installation shall interrupt both live conductors of a single-phase supply."
"Electrical installation" is defined in part 2 of the Regs as, "An assembly of associated electrical equipment having co-ordinated characteristics to fulfill specific purposes."
This has come up before and it's been said the circuits from each cu are classed as an installation so each main switch counts as an isolator for that installation.Any definite answers on this one
I'm with you there.But where there is a single source of supply and the distinction between which circuits are on which CU is neither obvious to the user nor done that way for a specific functional reason, it is only logical to call it one installation.
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