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Do-It-Yourself (DIY) Question & Answer Forum
Confused - lighting circuit.
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<blockquote data-quote="UNG" data-source="post: 559691" data-attributes="member: 8931"><p>Had one a while ago on a dual RCD CU and the fault was not on the side of board where the RCD was tripping. The strange bit was the RCD that protected the faulty circuit did not trip and when tested operated as it should it was a bit strange that the fault bypassed that RCD and tripped the RCD on the other side of the CU, found the fault and repaired it</p><p>The only explanation I could come up with for the odd tripping was that one RCD was slightly more sensitive when tested</p></blockquote><p></p>
[QUOTE="UNG, post: 559691, member: 8931"] Had one a while ago on a dual RCD CU and the fault was not on the side of board where the RCD was tripping. The strange bit was the RCD that protected the faulty circuit did not trip and when tested operated as it should it was a bit strange that the fault bypassed that RCD and tripped the RCD on the other side of the CU, found the fault and repaired it The only explanation I could come up with for the odd tripping was that one RCD was slightly more sensitive when tested [/QUOTE]
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Confused - lighting circuit.
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