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Electrical Inspection & Testing Forum
Another borrowed neutral question
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<blockquote data-quote="norv" data-source="post: 3610" data-attributes="member: 23"><p>Going back to a job on Thurs.</p><p></p><p>Changed the CU &amp; the RCD trips when the socket CB is turned on. I've got my trusty fault finding list ready, but just to confirm if there was a borrowed neutral from a lighting circuit to sockets or vice versa then wouldnt the RCD trip only when one of the lights were switched on or something was plugged in? I'm 99% sure everything was unplugged &amp; all lights off when I did the CU change</p></blockquote><p></p>
[QUOTE="norv, post: 3610, member: 23"] Going back to a job on Thurs. Changed the CU & the RCD trips when the socket CB is turned on. I've got my trusty fault finding list ready, but just to confirm if there was a borrowed neutral from a lighting circuit to sockets or vice versa then wouldnt the RCD trip only when one of the lights were switched on or something was plugged in? I'm 99% sure everything was unplugged & all lights off when I did the CU change [/QUOTE]
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Another borrowed neutral question
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