rcd tripping

Fred · 2010-11-01T11:14:18+00:00

Hi,In the last few weeks we've had a couple of power cuts caused by theRCD in the CU tripping but it's not obvious what it causing it. Noneof the MCBs have tripped.It seems that each time the washing machine is on its spin cycle and Iam wondering whether that is responsible. However, we have had thewashing machine on plenty of other times and nothing has happened.Is there anyway to pin point what is causing these trips? Is a washingmachine a likely culprit?I suppose a board full of rcbos would make it easy to identify theproblem but I haven't got one of those ;) But didn't I read somewherehere that rcbos only switch the live not the neutral (makes sensesince the neutrals are connected to the bus bar not the rcbo), so isan advantage of using rcds that it gives you protection on both poles?TIA

Nov 01, 2010 20 Replies

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John Rumm 15 years ago

Yup, spot on.

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