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RCCB tripping randomly
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<blockquote data-quote="Geoff1946" data-source="post: 499811" data-attributes="member: 28452"><p>Hi StephenB. </p><p></p><p>I'm in the same position as yourself as an electrical engineer with no electrical installation qualifications, though perhaps I've dabbled in it more than you. </p><p></p><p>The first thing I would do is check all my class 1 appliances for insulation resistance. If you have or can borrow an insulation tester, preferably a 500v "megger" or similar, but even a low voltage multimeter with 10 megohm range then that's a straightforward move which may just reveal your problem. Pay special attention to those with heating elements, and if you have an electric cooker on the circuit that's a prime suspect.</p><p></p><p>Another thing you may want to check is whether you have moisture in any outdoor light fittings.</p><p></p><p>Beyond that, if you've never worked on installed wiring, then starting by trying to find a semi intermitant fault is probably a bit ambitious.</p></blockquote><p></p>
[QUOTE="Geoff1946, post: 499811, member: 28452"] Hi StephenB. I'm in the same position as yourself as an electrical engineer with no electrical installation qualifications, though perhaps I've dabbled in it more than you. The first thing I would do is check all my class 1 appliances for insulation resistance. If you have or can borrow an insulation tester, preferably a 500v "megger" or similar, but even a low voltage multimeter with 10 megohm range then that's a straightforward move which may just reveal your problem. Pay special attention to those with heating elements, and if you have an electric cooker on the circuit that's a prime suspect. Another thing you may want to check is whether you have moisture in any outdoor light fittings. Beyond that, if you've never worked on installed wiring, then starting by trying to find a semi intermitant fault is probably a bit ambitious. [/QUOTE]
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RCCB tripping randomly
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