A spur off a ring with FCU (UK)

[DarrenA]

It's true that Appendix 15 in the regs gives example circuits and the examples all have one spur off a ring.
It's also true that more people are familiar with the appendix than the actual regulation, so there is some merit is sticking to the examples.

For the record, the actual regulation says:
Accessories to BS 1363 may be supplied through a ring final circuit, with or without unfused spurs, [ .... ]
Such circuits are deemed to meet the requirements of Regulation 433.1.1 if the current-carrying capacity (I,) of the cable is not less than 20 A and if, under the intended conditions of use, the load current in any part of the circuit is unlikely to exceed for long periods the current-carrying capacity (I,) of the cable.

Both my suggestions meet that as the max load current will be less than the CCC of the cable in both cases.
However it they are impractical for other reasons, fair enough!

Maybe elsewhere in the regs it states that a spur can only have one sngl/dbl socket or one FCU? Its just that while reading up about all this I have come across several posts that say according to regs you can't have more than one FCU off a single spur.

It does make sense to be able to have 2 though as 2 x 13A FCU = 26A which is within the 2.5mm cable limits and an unfused dbl socket would allow the same. That is unless you also add those unfused "cube" socket doublers, though that's a different conversation!

 

[DarrenA]

Bathroom extractors would rarely be supplied from anywhere other than lighting.

Trust no one where electricity is concerned and prove everything.

Thanks for the advice.