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Do-It-Yourself (DIY) Question & Answer Forum
green sleeving/switch wires when upgrading consumer unit
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<blockquote data-quote="davetheglitz" data-source="post: 25759" data-attributes="member: 173"><p>My take on this is as follows:-</p><p></p><p>When you install a new board to the 17th it's wise to do some tests before changing it to ensure that you aren't chasing faults at the end of the day in failing light - i.e N-E faults/very poor insulation resistance. Anything that could cause problems.</p><p></p><p>Your earthing and bonding should be up to regs and you should ensure that the CU has been installed correctly so insulation, polarity and Zs etc on all attached circuits are required. I.e as per EIC. Use limitations and cover your back.</p><p></p><p>If for example the insulation resistance on one circuit is 1M - then it may not be up to current regs and the customer should be informed - but you shouldn't take it on yourself to put it right at your cost. The work you have done can only have improved the installation! Similarly if there are single insulated wires at pendants - inform the customer - but in effect it's nothing to do with the work that you carried out.</p><p></p><p>Regarding changing green sleeving to green/yellow for the whole installation - why? It's insulated - it's safe and to the best of my knowledge electricity is colourblind! I would just note this on a PIR - but wouldn't advocate changing is as there is no safety hazard.</p></blockquote><p></p>
[QUOTE="davetheglitz, post: 25759, member: 173"] My take on this is as follows:- When you install a new board to the 17th it's wise to do some tests before changing it to ensure that you aren't chasing faults at the end of the day in failing light - i.e N-E faults/very poor insulation resistance. Anything that could cause problems. Your earthing and bonding should be up to regs and you should ensure that the CU has been installed correctly so insulation, polarity and Zs etc on all attached circuits are required. I.e as per EIC. Use limitations and cover your back. If for example the insulation resistance on one circuit is 1M - then it may not be up to current regs and the customer should be informed - but you shouldn't take it on yourself to put it right at your cost. The work you have done can only have improved the installation! Similarly if there are single insulated wires at pendants - inform the customer - but in effect it's nothing to do with the work that you carried out. Regarding changing green sleeving to green/yellow for the whole installation - why? It's insulated - it's safe and to the best of my knowledge electricity is colourblind! I would just note this on a PIR - but wouldn't advocate changing is as there is no safety hazard. [/QUOTE]
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green sleeving/switch wires when upgrading consumer unit
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