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Shower circuit design.

Sparkingchip

Why would an electrician install a 10 mm twin and earth circuit protected by a B32 MCB for a 8.5 kW shower?

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    Current rating for 6.00mm twin and earth pretty much only seems to be complaint if the cable is clipped direct.

    Or by using installation methods 57 or 58 where the cable is buried direct in certain masonry having a thermal  resistivity not greater than 2K.m/W. This excludes thermally insulating materials.

    Z.

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