How reliable are RCDs in consumer units?
How much does residual current monitor RCM cost, from where?
They seem to have a readout of how much current is being lost to earth,
so could be used to see which appliances are leaking how much
(by turning them on and off)
if an RCM was installed bedore the fuseboxes..
I cant find one on ebay
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[george]
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