Re: Plug In GFCI Device Avail. ?

I read in sci.electronics.design that Rich Grise <richgrise@xxxxxxxxxxx> wrote (in <pan.2005.04.28.17.12.18.161006@xxxxxxxxxxx>) about 'Plug In GFCI Device Avail. ?', on Thu, 28 Apr 2005:

Some idiot will plug it into a 3-to 2-prong adapter that they haven't bothered to ground (AKA "cheater"), ergo no ground fault current, ergo no protection, ergo one more dead idiot with relatives with lawyers.

We don't have those in UK, and our units are not GFCIs but RCDs (Residual Current Detectors)- they operate on a difference in the L and N currents exceeding 30 mA (or 10 mA for some critical applications). So they WOULD work even if plugged into a non-grounded wall socket. However, they (or some of them) can also detect that condition - the test button doesn't work and you can't reset the breaker if it doesn't.
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Regards, John Woodgate, OOO - Own Opinions Only.
There are two sides to every question, except
'What is a Moebius strip?'
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk
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