On Fri, 11 Nov 2005 19:44:28 -0000, "Mogweed"
wrote:

Faulty RCD? If they are the same value try swapping two and see if the
fault moves.

sponix

Thanks sponix but I think you're thinking of the MCBs rather than the RCD
)

Well, I have had plug in RCDs that trip when loaded with non-earthed
appliances..

sponix