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Do-It-Yourself (DIY) Question & Answer Forum
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<blockquote data-quote="SLIPSHOD &amp; SLAPDASH" data-source="post: 13554" data-attributes="member: 16"><p>I note the Consumer unit has a Rcd main switch, Is this a TT system ? The 17th edition states one Rcd is not acceptable (my opinion is, it never was) so a simple job you are doing now means you may have to change that Consumer unit.</p><p></p><p>Before anyone argues this point read up on the Part P rules about regs etc.</p><p></p><p>The head does look like a TNS. The old earth connection may have corroded away and the earth cable has never been connected since the house was rewired, the electrician may have left it turned off and the owner switched it on .</p></blockquote><p></p>
[QUOTE="SLIPSHOD & SLAPDASH, post: 13554, member: 16"] I note the Consumer unit has a Rcd main switch, Is this a TT system ? The 17th edition states one Rcd is not acceptable (my opinion is, it never was) so a simple job you are doing now means you may have to change that Consumer unit. Before anyone argues this point read up on the Part P rules about regs etc. The head does look like a TNS. The old earth connection may have corroded away and the earth cable has never been connected since the house was rewired, the electrician may have left it turned off and the owner switched it on . [/QUOTE]
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