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Cable across surface of insulation.

Discussion in 'Electrics UK' started by conny, 22 Jun 2021.

  1. conny

    conny

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    I'm about to insulate my new workshop with 40mm glass fibre boards which have a fire resistant surface into 50mm recess between the upright supports. I intend to run a 4.0mm radial circuit across the surface of the boards behind a 150mm upstand at the back of the work bench. Circuit will consist of up to 9 double gang sockets protected by a 20A MCB and a 30mA RCD. I will only be using a maximum of 3 items at a time and these will consist of 1 x machine, 1 x dust extraction unit and possibly my CD player. The number of sockets is simply avoid the necessity of moving items to use them and avoid trailing cables. Can anyone see a problem with this?
     
  2. EFLImpudence

    EFLImpudence

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    No.

    4mm² T&E would be rated at 18.5A even when completely surrounded by thermal insulation.
     
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  4. conny

    conny

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    Have to think of an alternative route then.
    Thank you.

    Sorry, I may have mis-read your reply.
    Are you saying 'No there is no problem', or 'No, you can't do it'?
     
  5. davelx

    davelx

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    He's saying there is no problem. (You asked "Can anyone see a problem with this?" :))
     
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