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Electrician Talk Forum
17th Can someone help
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<blockquote data-quote="seajayess" data-source="post: 10780" data-attributes="member: 603"><p>If the supply to the sub boards is going to be in SWA all the way change the RCBO for a 40 A MCB then there is no need to RCD protect the cable, You could then fit RCD's in the relavent CU where they are placed, ie garage / office, so you will eliminate nuisense tripping at the supply dont forget you will proberbly have to provide an earth stake and make the sub boards TT hope this helps CJS</p></blockquote><p></p>
[QUOTE="seajayess, post: 10780, member: 603"] If the supply to the sub boards is going to be in SWA all the way change the RCBO for a 40 A MCB then there is no need to RCD protect the cable, You could then fit RCD's in the relavent CU where they are placed, ie garage / office, so you will eliminate nuisense tripping at the supply dont forget you will proberbly have to provide an earth stake and make the sub boards TT hope this helps CJS [/QUOTE]
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