"Jethro" wrote in message
...
As someone who has experienced a shock from simultaneously touching a
metal screw retaining a double insulated switch into a metal backbox
that was contacting the live feed, to a metal carpet join strip that I
was standing on in my socks I can confirm it hurts.

Someone ought to provide M3.5 durable plastic screws - but I don't
think they do!

A far more acceptable and viable solution is to install or extend the
RCD to protect the whole house and forget rewiring (unless its rubber)
Of course if you are concerned that loosing all the lights is a
problem then stick a few emergency lights around the place.

Isn't this advised against in the regulations ? On the basis that if the
RCD
were to trip out, you wouldn't want to try and find your fuse box in the
dark ?



I think a small maintained emergency light over the CU (driven from the
circuit that would otherwise provide illumination for the CU) would be a
very good idea in this circumstance.

--
Richard Sampson

mail me at
richard at olifant d-ot co do-t uk