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Do-It-Yourself (DIY) Question & Answer Forum
Consumer Unit further than 3 metres from the metering position
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<blockquote data-quote="kme" data-source="post: 132929" data-attributes="member: 113"><p>Yes. If the CU is &gt;3M from HED; some form of isolation (switchfuse, 2 pole iso., KMF etc) is needed at the supply end.</p><p></p><p>IF it is TT, it MUST have RCD protection, regardless of method of install.</p><p></p><p>If its TN, then as long as you cover the &lt;50mm in walls / earthed sheath / mechanical protection rules, you don`t need the RCD (hence the use of SWA. Most customers deem to prefer it to galv trunking along the hallway:C)</p><p></p><p>KME</p></blockquote><p></p>
[QUOTE="kme, post: 132929, member: 113"] Yes. If the CU is >3M from HED; some form of isolation (switchfuse, 2 pole iso., KMF etc) is needed at the supply end. IF it is TT, it MUST have RCD protection, regardless of method of install. If its TN, then as long as you cover the <50mm in walls / earthed sheath / mechanical protection rules, you don`t need the RCD (hence the use of SWA. Most customers deem to prefer it to galv trunking along the hallway:C) KME [/QUOTE]
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Do-It-Yourself (DIY) Question & Answer Forum
Consumer Unit further than 3 metres from the metering position
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