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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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    I don’t have an issue with using 10 mm, it may be OTT as in this particular instance I would rate the cable at 52 amps.

    So it could possibly be protected by a 45 or 50 amp device rather than a 40 amp, but the installer actually chose a 32 amp. 

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    I don’t have an issue with using 10 mm, it may be OTT as in this particular instance I would rate the cable at 52 amps.

    So it could possibly be protected by a 45 or 50 amp device rather than a 40 amp, but the installer actually chose a 32 amp. 

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