In article ,
Owain wrote:
Double-pole fusing was also the norm before WW2, leading to
all kinds of dangers.

DP fusing necessary because the supply at that time wasn't reliably tied
to earth.

Giving twice the chance of the wrong one blowing? ;-)

Could have dated from DC days, too.

--
*Reality? Is that where the pizza delivery guy comes from?

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