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Domestic Power Wiring - Upstairs & Downstairs

I have surveyed a house and have observed a domestic ring circuit which is serves a floor area exceeding 100m2, including upstairs, downstairs and utility containing (washing machine and tumble dryer) (kitchen ring is separate). I am ok with this circuit contravening the 100m2 guidance, and not being respective to the load of the whitegoods, but I understand there is guidance on a domestic ring only covering a single level.

Can somebody point me towards this guidance either in published Guidance Notes or the Regulations.

Thanks

Slight smile

Parents
  • It used to be considered good practice to split the layout vertically rather than horizontally, so that two ring circuits both supplied upstairs and downstairs, so if a circuit MCB tripped half the sockets remained working on both floors.

  • Absolutely right. I still do it like this now. If there is a problem with one circuit you still have power on both floors so no extension leads up the stairs. It also uses considerably less cable.

    Gary

Reply
  • Absolutely right. I still do it like this now. If there is a problem with one circuit you still have power on both floors so no extension leads up the stairs. It also uses considerably less cable.

    Gary

Children
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