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RCD Plug Trip
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<blockquote data-quote="SPECIAL LOCATION" data-source="post: 513754" data-attributes="member: 250"><p>Both questions answer is no...</p><p></p><p>Adding RCD plugs to an already RCD protected circuit will prove nothing..</p><p></p><p>Randomly swapping RCD modules without first proving a faulty item is normally an expensive waste of time...</p><p></p><p>99% of the time when RCD's start tripping they are normally doing exactly what they are designed to do.</p><p></p><p>i.e. disconnecting the power in less than half a second because they have detected a fault of 30mA or greater leaking to earth..</p><p></p><p>Although it could be oversensitive, it is actually more common for faulty RCD's to stop tripping rather than start random tripping..</p><p></p><p>Any competent electrician can test an RCD with a suitable meter and verify if it is operating correctly or not in probably less than 10mins..</p><p></p><p>IF the RCD is proved to be working correctly then the nest step is to test the circuit wiring..</p><p></p><p>, </p><p></p><p>However is does sound as though you probably have a bad design of CU with a single RCD protecting multiple circuits...</p><p></p><p>which can be a bit of a pain in the bum to diagnose the exact cause..</p><p></p><p> Guinness</p></blockquote><p></p>
[QUOTE="SPECIAL LOCATION, post: 513754, member: 250"] Both questions answer is no... Adding RCD plugs to an already RCD protected circuit will prove nothing.. Randomly swapping RCD modules without first proving a faulty item is normally an expensive waste of time... 99% of the time when RCD's start tripping they are normally doing exactly what they are designed to do. i.e. disconnecting the power in less than half a second because they have detected a fault of 30mA or greater leaking to earth.. Although it could be oversensitive, it is actually more common for faulty RCD's to stop tripping rather than start random tripping.. Any competent electrician can test an RCD with a suitable meter and verify if it is operating correctly or not in probably less than 10mins.. IF the RCD is proved to be working correctly then the nest step is to test the circuit wiring.. , However is does sound as though you probably have a bad design of CU with a single RCD protecting multiple circuits... which can be a bit of a pain in the bum to diagnose the exact cause.. Guinness [/QUOTE]
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