:|I think that the OP has put forward a very good answer himself in his original post. Install an enclosure containing an RCD and MCB etc.I don't know why people are suggesting that he does it differently and in a manner that doesn't comply with the Regulations.
He has also asked if he should re-route the socket circuit that supplies the shaver point and extractor fan.
Well unless you are of the opinion that all circuits require upgrading when only one circuit has been worked on, I wouldn't bother.
I think I would use an RCBO rather than an RCD and MCB and ensure that the enclosure meets the requirements for BS EN 60439.
Post #10?Wouldn't comply with the regulations.The whole circuit requires RCD protection, which would be back to the CU.
I personally couldn't comment cuz maybe posts #4 & #10 are in a dream I read...."701.411.3.3 Aditional protection by RCDsAdditional protection shall be provided for all circuits of the location, by use of one or more RCDs having the characteristics specified in Regulation 415.1.1."
As you can see, the reference is to protecting the circuit, not some or part of the circuit.
Well I read page one and had a suitable answer, but now I've lost the will to live.
Do you accept that the Regulations require the circuit to be RCD protected?Just my little input.The regs would require any alteration or addition to a circuit going into the bathroom would need RCD protection, but as far as I am aware it does not state where this RCD protection originates from, so could with all purpose be a RCD spur outlet, next to the nearest socket outlet, or lighting circuit, and not the whole circuit back to the CU.
Any circuit going into the bathroom under the current (version) of the regulations will require RCD protection.Do you accept that the Regulations require the circuit to be RCD protected?Do you consider that placing an RCD part way along a circuit would be protecting the circuit, or only protecting part of the circuit?
The 3A Fuse is not there to protect the circuit, it is there to protect the conductor, where there is a reduction in the current-carrying capacity.Any circuit going into the bathroom under the current (version) of the regulations will require RCD protection.I say version because I think you will find errors have been made in the regulations and these errors will be addressed with the first ammendment.
Placing a RCD part way along a circuit will not protect the whole of that circuit, in the same way that placing a 3amp fuse in the holder of a fused spur would not fuse that whole circuit to 3 amp.
What the RCD spur will do is comply with the regulations that the circuit going into the bathroom is additionaly protected by a 30mA RCd.
The circuit itself would still be protected from overcurrent etc by the mother circuits protective devise at the Cu.
could that not also be read as not just the lighting circuit for example but also the feed for underfloor heating and the towel rail heater."701.411.3.3 Aditional protection by RCDsAdditional protection shall be provided for all circuits of the location, by use of one or more RCDs having the characteristics specified in Regulation 415.1.1."
As you can see, the reference is to protecting the circuit, not some or part of the circuit.
All of the circuits, lighting, UFH, towel rail, SELV shaver socket the works.could that not also be read as not just the lighting circuit for example but also the feed for underfloor heating and the towel rail heater.So when it says circuits it's not saying protect the whole circuit but you must protect every circuit in the location, at the location??
just another option I thought I'd put out there
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