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  1. John321
    Offline

    John321 New EF Member

    Location:
    Blackpool, England
    I'm currently wiring an outside light with a built in photocell and I can't figure out what's going wrong. It's wired from a switch with a 3 core.

    At the switch, I've connected the grey(blue) neutral to the other neutrals and I've connected the black(brown) live to the common lives.

    At the light there is a connector block. And this is how I connect it
    Red/Brown - Nothing I guess this is for slave units
    Live - Black(brown)
    Earth - Earth
    Neutral - Grey(blue)

    And put the spare brown on it's own connector block.

    For some reason, the RCD keeps tripping and I can't figure out why. Any ideas? Cheers
     
  2. Vortigern
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    Vortigern Electrician's Arms

    Location:
    England
    Business Name:
    F.H. Electrical
    Post a photo please.
     
  3. Richard Burns
    Online

    Richard Burns Trusted Advisor

    Location:
    Cambridgeshire
    Business Name:
    Richard Burns
    Welcome to the forum, if it is wired as you say and there are no loose strands of cable bridging terminals then I would say you have a light fitting with an earth fault.
    Are you sure the neutrals at the switch are neutrals and the permanent lines are lines?
     
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  4. telectrix
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    telectrix Scouser and Proud of It Trusted Advisor

    Location:
    cheshire/staffordshire
    Business Name:
    Telectrix
    as above ^^^ probability is that there is not a Neutral at the switch.
     
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  5. John321
    Offline

    John321 New EF Member

    Location:
    Blackpool, England
    Thanks for the replies, I appreciate it. The lights are wired to the switch, there is a bunch of neutrals at the switch and I got 240 between the L+N.

    You think the photocell could be faulty?

    Cheers
     
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  6. DJ Ovengloves
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    DJ Ovengloves Guest

    You mean 230 don't you? :)
     
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  7. John321
    Offline

    John321 New EF Member

    Location:
    Blackpool, England
    Roughly yea haha :)
     
  8. Midwest
    Offline

    Midwest Electrician's Arms

    Location:
    Oxfordshire
    Could be 243V or 247V or .....
     
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  9. Pete999
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    Pete999 Trusted Advisor

    Top Poster Of Month

    Location:
    Northampton
    Business Name:
    None
    or244V 0r 248V
     
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  10. davesparks
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    davesparks Trusted Advisor

    Location:
    guildford
    No, the voltage in the U.K. Is not 230V
     
  11. Pete999
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    Pete999 Trusted Advisor

    Top Poster Of Month

    Location:
    Northampton
    Business Name:
    None
    I know Dave, it's 1239 in my place
     
  12. DJ Ovengloves
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    DJ Ovengloves Guest

    I know, but when quoting "mains" it should be stated as such imho. :)

    Edit- in case sums get done incorrectly. For what it's worth the voltage at my house sits at 243 most of the time when I'm doing monthly checks on my equipment.

    ...don't get me started on "low voltage"

     
  13. Pete999
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    Pete999 Trusted Advisor

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    Location:
    Northampton
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    What do you mean DJ "Don't get me started on low voltage" I'm interested that's all
     
  14. DJ Ovengloves
    Offline

    DJ Ovengloves Guest

    Now worries Pete, its tHe use of the phrase "low voltage" for 12 volt lighting, when of course it's elv.

    I know it's really anal, pretty much everyone knows whet is meant, but the odc in me shivers every time I see I being misused.
     
  15. Pete999
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    Pete999 Trusted Advisor

    Top Poster Of Month

    Location:
    Northampton
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    T
     
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