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Old 26th Jul 2021, 7:25 pm   #17
Graham G3ZVT
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Join Date: May 2010
Location: Greater Manchester, UK.
Posts: 18,675
Default Re: Faulty mains plug?

A while ago I had the whole-house RCD trip in the middle of the night.
I traced it to the kitchen ring and finally to the "Lec" fridge/freezer, It was now 3am so I ran an extension lead to a socket on a different circuit so it could wait till the morning, expecting it to be the compressor or something equally terminal.

But no, in the light of day there was about 100k of leakage between the earth and live pin of the plug even with the plugs fuse removed. The plug and cable looked substantial and good quality, nevertheless out came the snips and one of my stock of MK plugs with the Granada logo on the cover is now in its place.

Google told me that this problem of leaky mains plugs is not unknown on Lec and some other appliance makes.
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