"BigWallop" wrote in message
om...


To comply with the 30mA RCD ruling, you won't be able to run a fan heater
or
anything else of that nature on the final ring. In fact, one PC may be
enough to trip a 30mA RCD because of the feedback to earth from the
switching PSU. Try it, though.

I recommend you get the appliance tested.
No PC or fan heater or fridge or anything else I have has every tripped a 30
ma rcd and I don't see why they should.