In article ,
Malcolm wrote:
If the RCD trips and won't reset, reverse the polarity.

That suggests a fault elsewhere in *your* wiring or appliances. RCDs ain't
'polarity' sensitive.

Our continental
cousins don't have the concept of live and neutral that we do

That's because there's no such thing as polarity with AC - unless you
ground one leg as the UK does. Not all countries do.

--
*The average person falls asleep in seven minutes *

Dave Plowman London SW
To e-mail, change noise into sound.