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Main RCD???


NozSpark

Question

Lets say you have been asked to replace a shower and the CU whilst reasonable new has no RCD protection,, you recommend RCD protection and they agree to it,

they will not go as far as a CU change and RCBOs would be overly expensive............ they are however happy for it to go in the tails and accept the problems that would arise in the event of a fault...

I know that this is not strictly to the regs, but would you do it or not???

Surely any RCD is better than none???

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20 answers to this question

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rcbo are expensive i pay
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that is cheap. are they crap

didnt want to waste

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didnt want to waste
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I would do as Ianmacd says , put the RCD on the shower , you have done your bit as safe as pos. You have made the customer aware , each set of regs are not retrospective, if they don't want it ,then as I keep saying, we are not the Electric Police.

Its like a car mechanic I suppose, who tells you your car has four bald tyres and dodgey brakes. He can do no more, its now up to you, get the credit card out or ignore his professional advice .

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I would do as Ianmacd says , put the RCD on the shower , you have done your bit as safe as pos. You have made the customer aware , each set of regs are not retrospective, if they don't want it ,then as I keep saying, we are not the Electric Police.

Its like a car mechanic I suppose, who tells you your car has four bald tyres and dodgey brakes. He can do no more, its now up to you, get the credit card out or ignore his professional advice .

Concur with Deke & ianApplaud Smiley:D

Divert the old shower cable out of the CU into a new standalone RCD...

run cable from CU MCB into this new RCD.

The circuit YOU are working on is compliant...

But you have NO obligation to have to amend any other circuits you have not worked on!!

I did a replacement shower like this a few months back...

just RCD the circuit..

advise the customer "in writing" and note on CERT.

no problem;)

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yes. often. sometimes its the only way

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I would not but I am busy so can pick and choose work to a certain extent. Just remember if things do go wrong it will be you that they blame.

Batty

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Noz - would have made a good poll!

Batty - what could go wrong?

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Noz - would have made a good poll!

Batty - what could go wrong?

When the RCD trips out at 10 o'clock in the evening and they are left in darkness.

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When the RCD trips out at 10 o'clock in the evening and they are left in darkness.

Then they work out which circuit is causing it, leave the MCB off and no bother?

RCBO's for them with a minuscule of common sense?

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Then they work out which circuit is causing it, leave the MCB off and no bother?

RCBO's for them with a minuscule of common sense?

No good if its a neutral to earth fault though.

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leaving the MCB off will have no effect on a N-E fault. or even a L-E fault depending where on the circuit it is. using DP MCB's would be the only way to fully isolate a circuit

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When the RCD trips out at 10 o'clock in the evening and they are left in darkness.

I would have thought that if they are advised of the risks and accept them; then that should be OK..

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Why not just put the shower circuit on an RCD?

Would not comply with 17th ie other circuits in bathroom but if I had to do it I would do that rather than having one Rcd for whole house.

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