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Discuss Max run for 10.5 kw shower cable in the Electrical Wiring, Theories and Regulations area at ElectrciansForums.co.uk.

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  1. sidekick
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    sidekick Regular EF Member

    If 10.5 kw shower installed on 10mm t/e and 45a MCB over 15m, is it likely to have any problem as shower leaflet states max 12m run? Cable clipped direct with the exception of 2.5m running through some pipe boxing (containing hot water pipe)
     
  2. telectrix
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    telectrix Scouser and Proud of It Trusted Advisor

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    Location:
    cheshire/staffordshire
    Business Name:
    Telectrix
    that max. 12m may refer to 6mm. can't see a problem with 10mm. have you calculated the VD?
     
  3. sidekick
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    sidekick Regular EF Member

    just under 3v
     
  4. sidekick
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    sidekick Regular EF Member

    should any adjustment be made for the 2.5m going through the pipe box with hot pipe?
     
  5. Andy78
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    Andy78 Trusted Advisor

    Location:
    Kingston upon Hull
    This would be the area of most concern with me. How close are the pipe and the cable ? is the pipe lagged ? what's the ambient temp of the area ? etc
     
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  6. wallyanker
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    wallyanker Guest

    I know its border line but 10.5kw could potentially draw 45.7a. Maybe change the mcb to a 50a.

    10mm cable is suitable for this job
     
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