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MCB/RCD on consumer unit tripping
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<blockquote data-quote="boltonsparky" data-source="post: 506022" data-attributes="member: 4678"><p>A time delay RCD isn't suitable for the use you intend. </p><p></p><p>I doubt there is much wrong with the microwave itself (proven by the testing done on it) and the problems you are experiencing are due to a build up of earth leakage from various sources, the microwave just tips it over the edge. </p><p></p><p>As mentioned by Andy you need to get somebody competent in to test the rest of the installation. They'll be able to measure earth leakage of the installation and I'd bet on it being higher than it should be and the microwave adding just enough to send it over and trip. It may also be that the RCD is over sensitive which a ramp test would eliminate. </p><p></p><p>A very basic way of indicating if it is build up of leakage from multiple sources is to unplug everything in the house and just try the microwave on its own but this won't test the installation itself and isn't a substitute for proper testing. </p></blockquote><p></p>
[QUOTE="boltonsparky, post: 506022, member: 4678"] A time delay RCD isn't suitable for the use you intend. I doubt there is much wrong with the microwave itself (proven by the testing done on it) and the problems you are experiencing are due to a build up of earth leakage from various sources, the microwave just tips it over the edge. As mentioned by Andy you need to get somebody competent in to test the rest of the installation. They'll be able to measure earth leakage of the installation and I'd bet on it being higher than it should be and the microwave adding just enough to send it over and trip. It may also be that the RCD is over sensitive which a ramp test would eliminate. A very basic way of indicating if it is build up of leakage from multiple sources is to unplug everything in the house and just try the microwave on its own but this won't test the installation itself and isn't a substitute for proper testing. [/QUOTE]
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MCB/RCD on consumer unit tripping
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