In article , writes
tony sayer wrote:
In article , writes
"Dave Plowman (News)" wrote:
In article ,
wrote:
It will only reduce the severity of a shock you get if you get
some part of your body between live and earth. If you put your
finger across live and neutral (quite easy if doing something to
lights) then the RCD will do nothing at all for you.

Thought the time taken for the RCD to trip made this rather unlikely?

The RCD won't *ever* trip if you put your finger across live and
neutral, it dosn't trip on that sort of fault.


*Not strictly true, if you know how an RCD actually works. There will
still be "some" leakage current through your body that does not go back
via the neutral return so if that exceeds the RCD trip current, quite
likely, then out she goes!.....

Standing on a ladder on a wooden (probably) floor the leakage through
your body to earth will be virtually non-existent. You'll probably
have shoes with rubber/plastic soles as well.


Don't you believe it!. Well if you do, then grab the mains in one hand
and note the results.

Usual disclaimer don't they this at home unless by doing so you'll help
the gene pool along.......
--
Tony Sayer