Ahhhhh, it just popped into my head.
The isolator is wired BEFORE the RCD. Of course, derrrr.
The RCD wont trip if the isolator is off because it has no power and the neon will always be on regardless on the RCD because it is "upstream" of the RCD.
Ok, my question is then: Do I need...
Hi,
We had a shower installed a while ago by an electrician (I did the plumbing) which includes a 63A RCD about 1 meter away from the shower, inside a cupboard. All seems to be in order but I noticed today that when I do an RCD test it will only trip when the shower isolator is in the ON...