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borrowed

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  1. A

    RCD Tripping

    Changed my cu yesterday and all seemed fine. Not added any new circuits as yet. But I turned on one of the kitchen lights (there are 3 sets of downlights) and it tripped both rcds. I couldnt reset the rcd at first but it did after a while, not good....... every thing worked but this one set of...
  2. D

    Have i got a borrowed neutral

    Dear all, I would be grateful for some advice, a friend has a redundanct lighting circuit that they want disabling so they can plaster over the old fitting holes on the wall, when i tested the circuit the switch wire (black wire red sleeve) only has power to it, there are two other live wires...
  3. R

    Tripping out BOTH RCDs

    did a cu change on friday. tt system, simple split load board, dual rcds. Theres a fault on one of the lighting circuits. when one of the light switches is turned on it trips out BOTH rcds on the CU. going back to the house shortly to further investigate. would this be a borrowed neutral on...
  4. W

    Borrowed Neutral ??

    Might be a borrowed neutral?
  5. S

    testing for borrowed neutrals

    on changing fuse boards has anyone got a sucssesful method of testing for borrowed neutrals before changing ? finding probs on changing boards then to find borrowed neutrals on two way lighting on stairs and wall lights thanks for any feedback !
  6. S

    RCBO's on to old wiring....HELP!!!

    I seem to be having alot of trouble after installing anew consumer unit with 5 RCBO's I have got really high milli second readings and dont understand why I am looking at 350 x 1 and no operation on x 5. IR is fine and so is R1 + R2. Any suggestions????:confused:
  7. A

    borrowed neutral

    Sorry for this dumb question.... What would be the easiest way of testing to see if you have a borrowed neutral? Disconnect neutrals in cu and do a continuity test between neutrals?:confused: My apologies in advance....
  8. P

    Beware The Borrowed Neutral

    i had a phone call off my mate today he had done cu change ,dual rcd as per 17th,he said alls fine until i turn on the landing light (2 way switch) and both the rcds keep tripping,turns out he had put up lights and down lights on different rcds as recomended,turns out when the council wired the...

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