- Reaction score
- 247
I know the guide states a supply to outbuildings should come via a MCB,but, if the MCB is on a RCD rail and that MCB supplies the outbuilding CU via a main switch,RCD,MCB, is that not a whole lot of gubbins that realy is not required, can the supply out not be taken direcly from the switched side of the parent CU main switch, in fact would it not serve better if the supply out was take from a couple of henlys before the parent CU.
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