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Do-It-Yourself (DIY) Question & Answer Forum
Lights tripping
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<blockquote data-quote="Andy™" data-source="post: 70981" data-attributes="member: 2012"><p>an MCB tripping could be either L-N or L-E, but if the RCD doesnt trip, more likely L-N</p><p></p><p>RCDs will not trip on L-N fault</p><p></p><p>R1R2 will be of no help. you need IR. once fault is known, split circuit half way, test again. one should be clear, one will have fault. split again and keep going. slight different process for rings though</p></blockquote><p></p>
[QUOTE="Andy™, post: 70981, member: 2012"] an MCB tripping could be either L-N or L-E, but if the RCD doesnt trip, more likely L-N RCDs will not trip on L-N fault R1R2 will be of no help. you need IR. once fault is known, split circuit half way, test again. one should be clear, one will have fault. split again and keep going. slight different process for rings though [/QUOTE]
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