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Do-It-Yourself (DIY) Question & Answer Forum
What should the voltage be across the mains switch when off?
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<blockquote data-quote="Doc Hudson" data-source="post: 492786" data-attributes="member: 1607"><p>If you have concerns about this "(new)" consumer unit, I would be addressing them to the electrician who installed, tested, certified, (and notified for Part-P if located in appropriate parts of UK), the work. The electrical certificate will state the earthing arrangements, typically page 2 of the standard BS7671 model forms. If its a TT installation there will be a significant difference between Neutral &amp; Earth compared to a TNCS. You may also want to ask about the significant lack of sufficient RCD's to comply with wiring regulation 314. If you are attempting to measure mains voltages you will do better with an approved voltage tester. The electrician who installed &amp; tested the installation should have one and if they come back may be able to show you what the real potential differences are between the points you are trying to test and help resolve your LED problems at the same time.</p><p></p><p>Doc H.</p></blockquote><p></p>
[QUOTE="Doc Hudson, post: 492786, member: 1607"] If you have concerns about this "(new)" consumer unit, I would be addressing them to the electrician who installed, tested, certified, (and notified for Part-P if located in appropriate parts of UK), the work. The electrical certificate will state the earthing arrangements, typically page 2 of the standard BS7671 model forms. If its a TT installation there will be a significant difference between Neutral & Earth compared to a TNCS. You may also want to ask about the significant lack of sufficient RCD's to comply with wiring regulation 314. If you are attempting to measure mains voltages you will do better with an approved voltage tester. The electrician who installed & tested the installation should have one and if they come back may be able to show you what the real potential differences are between the points you are trying to test and help resolve your LED problems at the same time. Doc H. [/QUOTE]
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What should the voltage be across the mains switch when off?
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