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Discuss External light testing in the Electrical Wiring, Theories and Regulations area at ElectrciansForums.co.uk.

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  1. Spikenaylor
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    Spikenaylor Regular EF Member

    Hi there.
    just to confirm my thoughts.

    on fitting an external floodlight 400W into to the lighting circuit of a bungalow, what tests do you guys do?
    R1+R2 on all light fittings and sockets for proof of earth and values?
    Insulation on that whole circuit, if I can remove all bulbs, or lives/earth if not?
    ZS on that whole circuit If I have found the furthest point?



    Many thanks for your replies
    Spikenaylor
     
  2. telectrix
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    telectrix Scouser and Proud of It Trusted Advisor

    Top Poster Of Month

    Location:
    cheshire/staffordshire
    Business Name:
    Telectrix
    you only need to test the circuit you work on. IR, R1+R2, Zs, ensure earthing and bonding in place and adequate. MWC.
     
  3. QSGAZ
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    QSGAZ Guest

    If you have sensor on the flood light dont carry out an IR test you might blow the circuit inside it, but you R1+R2 and Zs should be ok.
     
  4. telectrix
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    telectrix Scouser and Proud of It Trusted Advisor

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    Location:
    cheshire/staffordshire
    Business Name:
    Telectrix
    good point. if in doubt, short L/N and IR to E.
     
  5. Plonker 3
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    Plonker 3 Guest

    Always do it that way myself on a existing installation as you can never be 100% that you have disconnected everything that may be damaged be the test.
     
  6. QSGAZ
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    QSGAZ Guest

    Minor works cert you will need just incase you dont know.
     
  7. tony mc
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    tony mc Electrician's Arms

    Quick test on the cct before you start just in case there is a fault and it might save you some head scratching IMO !!
     
  8. GT1
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    GT1 Guest

    Of course I assume there are NO external cables or terminations.
    Otherwise the work is notifiable.
     
  9. ian.settle1
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    ian.settle1 Trusted Advisor

    Location:
    Wirral
    Well if there is no external cables or terminations how the hell does the light work if it is an external light?:confused::confused::confused:
     
  10. GT1
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    GT1 Guest

    The cable comes through the wall straight into the back of the light. So the light has to be of a type where it can accommodate the cable and terminations inside its own housing, without either being visible.

    Therefore no "external" cable or terminations. Thus, NOT notifiable.
     
  11. ian.settle1
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    ian.settle1 Trusted Advisor

    Location:
    Wirral

    As it is a floodlight I think you will find there are external cables.
     
  12. Murdoch
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    Murdoch Electrician's Arms

    Location:
    Woking
    If the light is attached to the house and ALL the connections to the light are inside the housing, IMHO its not notifiable
     
  13. telectrix
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    telectrix Scouser and Proud of It Trusted Advisor

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    Location:
    cheshire/staffordshire
    Business Name:
    Telectrix
    Therefore no "external" cable or terminations. Thus, NOT notifiable.

    external cable is not notifiable as long as it's fixed to the fabric of the building and doesn't have any terminations apart from the light it is supplying.ot
     
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