but the RCD would almost certainly make it "similar switchgear"
I'd still argue not - without any overcurrent protective devices there's no incoming or outgoing circuits - it's all (by the definition of a circuit) all one circuit. It can't therefore be a distribution board, and thus not any particular type of distribution board that is a consumer unit, so any similarity doesn't seem at all obvious. Let alone meeting the switchgear definition's requirement for containing both main and auxiliary switching equipment.
- Andy.
Well, this is where it gets tenuous.
The overcurrent protection may be downstream of the device (in this case usually justifiably so), therefore it fits into the "one or more fuses, circuit breakers, residual current operated devices" category in the definition of Consumer Unit in BS 7671. Certainly, the single RCD-isolator controls energy, and is certainly involved in the distribution of electrical energy.
but the RCD would almost certainly make it "similar switchgear"
I'd still argue not - without any overcurrent protective devices there's no incoming or outgoing circuits - it's all (by the definition of a circuit) all one circuit. It can't therefore be a distribution board, and thus not any particular type of distribution board that is a consumer unit, so any similarity doesn't seem at all obvious. Let alone meeting the switchgear definition's requirement for containing both main and auxiliary switching equipment.
- Andy.
Well, this is where it gets tenuous.
The overcurrent protection may be downstream of the device (in this case usually justifiably so), therefore it fits into the "one or more fuses, circuit breakers, residual current operated devices" category in the definition of Consumer Unit in BS 7671. Certainly, the single RCD-isolator controls energy, and is certainly involved in the distribution of electrical energy.
