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Compliant?

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Is this arrangement compliant or not?


Consumer unit. R.C.D. protected shower circuit supplied by a B40 M.C.B. which runs to a cord ceiling switch  in the shower room in 6.0mm2 T&E. Old electric shower removed. New power shower installed with water supplied from tanks. 0.63 Amp transformer in loft to feed new integral shower pump motor. Loft transformer fed via 3 Amp fused switched fused connection unit on a 1.0mm2 T&E cable from old shower ceiling cord switch. 1.0 mm2 T&E run 2.5 metres.


P.S. The switched fused connection unit is at the end of the supply cables.


Confirmation or condemnation by regs. please.


Z.
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  • 0

    Circuits supplied from the transformer secondary will not have RCD protection... Is the transformer output SELV?



    Doesn't necessarily have to be SELV or even ELV - the bathroom RCD regulation only applies to circuit that are protected by ADS (the 701.411.3.3 numbering means it's a adjustment to regulation 411.3.3 - which is in the ADS only section, 411). The output could be 230V separated (section 413) for example, and still not require 30mA RCD protection even it it was under BS 7671 (which is it probably isn't anyway as the equipment standard probably takes precedence).


      - Andy.
Reply
  • 0

    Circuits supplied from the transformer secondary will not have RCD protection... Is the transformer output SELV?



    Doesn't necessarily have to be SELV or even ELV - the bathroom RCD regulation only applies to circuit that are protected by ADS (the 701.411.3.3 numbering means it's a adjustment to regulation 411.3.3 - which is in the ADS only section, 411). The output could be 230V separated (section 413) for example, and still not require 30mA RCD protection even it it was under BS 7671 (which is it probably isn't anyway as the equipment standard probably takes precedence).


      - Andy.
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