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Insulation Resistance Testing of downlights
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<blockquote data-quote="Bruspark" data-source="post: 484565" data-attributes="member: 20106"><p>There is little benefit and no wisdom in doing 'just for fun' insulation testing between L &amp; N (unless there is a known fault you have isolated to one circuit and</p><p> are getting very close to) and much less so with any devices remaining connected to the circuit. ... And in many houses with Smokes, Aerial amplifiers etc</p><p> scattered around it's increasing hard to be entirely sure nothing is connected even having asked !</p><p> </p><p> Insulation testing from L+N to E can be done at 250v or 500v and while decent connected equipment will pass at either the existence of such 'still connected'</p><p> devices would make 250V the acceptable and preferred solution unless it became necessary to disconnect all the devices as some other problem is suspected. </p><p></p><p><strong>However</strong> you say you have a qualified inspector to do the test so you can simply give them a sheet of paper that lists the still connected devices per circuit and let them figure how to compliantly test the installation.</p></blockquote><p></p>
[QUOTE="Bruspark, post: 484565, member: 20106"] There is little benefit and no wisdom in doing 'just for fun' insulation testing between L & N (unless there is a known fault you have isolated to one circuit and are getting very close to) and much less so with any devices remaining connected to the circuit. ... And in many houses with Smokes, Aerial amplifiers etc scattered around it's increasing hard to be entirely sure nothing is connected even having asked ! Insulation testing from L+N to E can be done at 250v or 500v and while decent connected equipment will pass at either the existence of such 'still connected' devices would make 250V the acceptable and preferred solution unless it became necessary to disconnect all the devices as some other problem is suspected. [B]However[/B] you say you have a qualified inspector to do the test so you can simply give them a sheet of paper that lists the still connected devices per circuit and let them figure how to compliantly test the installation. [/QUOTE]
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