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Do-It-Yourself (DIY) Question & Answer Forum
Test a socket ring main.
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<blockquote data-quote="SPECIAL LOCATION" data-source="post: 561631" data-attributes="member: 250"><p>Unless one is a time delayed device, in the event of an earth leakage fault with two RCD's in series, it can be a bit of pot-luck which one trips or if both trip..?</p><p></p><p>Basically with no discrimination built into the circuit design, it's just down to the operating characteristics of the devices and the circuit characteristics of the wiring which causes either device to operates first. </p><p></p><p>So the house and bar both operating sounds like they are probably both functioning correctly, as its unlikely to have two RCD's become a bit oversensitive at the same time? </p><p></p><p></p><p></p><p>Random swapping of devices generally achieves very little...</p><p></p><p>A suitable test meter (or meters) that can perform RCD tests, Insulation resistance tests, Continuity tests, Earth loop impedance tests,</p><p>Would quickly identify what parts of the installation are electrically sound...</p><p>And which parts, (if any), have any poor test reading....</p><p></p><p>It could be faulty damaged wiring, faulty appliances, water ingress, lose connection arcing and breaking down etc..</p><p></p><p>But you are very limited if you have no access to any suitable test meters?</p></blockquote><p></p>
[QUOTE="SPECIAL LOCATION, post: 561631, member: 250"] Unless one is a time delayed device, in the event of an earth leakage fault with two RCD's in series, it can be a bit of pot-luck which one trips or if both trip..? Basically with no discrimination built into the circuit design, it's just down to the operating characteristics of the devices and the circuit characteristics of the wiring which causes either device to operates first. So the house and bar both operating sounds like they are probably both functioning correctly, as its unlikely to have two RCD's become a bit oversensitive at the same time? Random swapping of devices generally achieves very little... A suitable test meter (or meters) that can perform RCD tests, Insulation resistance tests, Continuity tests, Earth loop impedance tests, Would quickly identify what parts of the installation are electrically sound... And which parts, (if any), have any poor test reading.... It could be faulty damaged wiring, faulty appliances, water ingress, lose connection arcing and breaking down etc.. But you are very limited if you have no access to any suitable test meters? [/QUOTE]
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Test a socket ring main.
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