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Electrical Inspection & Testing Forum
faulty RCD? i think its the supply cable.
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<blockquote data-quote="pewter" data-source="post: 425319" data-attributes="member: 15463"><p>the short version.</p><p></p><p>-Consumer unit change MK century 10 way special from Eddies.</p><p></p><p>-12:00 unit installed, RCD's all test ok.</p><p></p><p>-16:00 6 circuits tested and terminated, work fine when energised.</p><p></p><p>-7th circuit makes RHS, RCD trip when energised.</p><p></p><p>-Notice test button on RCD doesnt work, doesnt dissoconnect when testing.</p><p></p><p>-Swap for another identicle RCD, which does the same.</p><p></p><p>-Swap for an older MK RCD, test button works but it doesnt disconnect under test.</p><p></p><p>-Circuit tests OK, appliances unplugged. get it to hold.</p><p></p><p>-then a fridge made it trip, then a kettle, then a cooker, then it tripped with nothing plugged in.</p><p></p><p>-thought possible RCDs all faulty, circuits and appliances made it trip with no consistancy or logic.</p><p></p><p>-getting late put it all on the 1 good RCD</p><p></p><p>-That does the same.</p><p></p><p>-now all RCDs are bad.</p><p></p><p>-19:00 linked out RCDS left them with just MCBs which was no less safe then the old wooden wylex they had before i turned up.</p><p></p><p>-Getting ready to throw all the RCDs at Eddies and never buy MK again.</p><p></p><p>-Test the RCDs at home and all work and test perfectly.</p><p></p><p>-Now i think its the supply, have had it before at another customers. after weeks of tripping, DNO coming out and all sorts, turned out to be neutral conductor broken down in street.</p><p></p><p>-Tomorrow i plan to reinstall the RCDs, see if they do the same. Try putting loads on in the house ot see if that helps it trip, then phone DNO. i think i will be putting link in place of the RCDs until the supply cables gets repaired.</p><p></p><p>whats your thoughts?</p></blockquote><p></p>
[QUOTE="pewter, post: 425319, member: 15463"] the short version. -Consumer unit change MK century 10 way special from Eddies. -12:00 unit installed, RCD's all test ok. -16:00 6 circuits tested and terminated, work fine when energised. -7th circuit makes RHS, RCD trip when energised. -Notice test button on RCD doesnt work, doesnt dissoconnect when testing. -Swap for another identicle RCD, which does the same. -Swap for an older MK RCD, test button works but it doesnt disconnect under test. -Circuit tests OK, appliances unplugged. get it to hold. -then a fridge made it trip, then a kettle, then a cooker, then it tripped with nothing plugged in. -thought possible RCDs all faulty, circuits and appliances made it trip with no consistancy or logic. -getting late put it all on the 1 good RCD -That does the same. -now all RCDs are bad. -19:00 linked out RCDS left them with just MCBs which was no less safe then the old wooden wylex they had before i turned up. -Getting ready to throw all the RCDs at Eddies and never buy MK again. -Test the RCDs at home and all work and test perfectly. -Now i think its the supply, have had it before at another customers. after weeks of tripping, DNO coming out and all sorts, turned out to be neutral conductor broken down in street. -Tomorrow i plan to reinstall the RCDs, see if they do the same. Try putting loads on in the house ot see if that helps it trip, then phone DNO. i think i will be putting link in place of the RCDs until the supply cables gets repaired. whats your thoughts? [/QUOTE]
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faulty RCD? i think its the supply cable.
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