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Bathroom Lights Tripping RCBO

Former Community Member
Former Community Member
Hi all. I have fully rewired my house, completed approx 5/6 weeks ago. Testing passed without fault. Last night the missus pulled the cord for the bathroom lights and apparently they all flashed on for a second and tripped the rcbo. (I have confirmed this) The 4 downlights are Aurora 5W ip65 fittings. Have since turned the fan iso off and remade switch but still tripped. Investigated the cables and their connections, no fault their either. Disconnected all the lights and wago’d off and no trip. At this point I turned the fan back on and whaddyaknow.. it tripped. 


seems as if their is a fault with the fan (opened it up and connection is okay so who knows) as well as the lights? Seems extremely unlikely to have blown together. I can not wrap my head around the issue. Please advise further!!
Parents
  • 0
    What else does this RCBO supply ?

    Does just adding any small load to that circuit trip it ? Try adding a test socket and something you know to be good.

    Can you tell if it is firing on an overload or the RCD part ?

    What test gear do you have to hand, can you ramp test the RCD or look at the standing earth leakage?


    and finally

    how are your N-E and LE voltages looking today ?

    (just in case the supply neutral has gone walk about.)


    Mike.
Reply
  • 0
    What else does this RCBO supply ?

    Does just adding any small load to that circuit trip it ? Try adding a test socket and something you know to be good.

    Can you tell if it is firing on an overload or the RCD part ?

    What test gear do you have to hand, can you ramp test the RCD or look at the standing earth leakage?


    and finally

    how are your N-E and LE voltages looking today ?

    (just in case the supply neutral has gone walk about.)


    Mike.
Children
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