In article ,
"DerbyBoy" No-one writes:

It is one of those Power Showers that is wall mounted - it is literally
going over the place where the old electric shower used to be. (Just new
gravity water feeds to it).

It's unlikely he will get the 6mm² or 10mm² electric shower cable
into terminals of a 3A appliance.

There is presumably a separate switch (pull-cord, probably) for the
shower? After changing the MCB as described earlier, he could replace
the switch with an FCU, and pull a 1mm² T&E from there to the shower,
if it's designed to be hardwired.

He was hoping to avoid the obvious solution which was to put a FSU in the
loft above the shower - the only easy place. He doesn't like going into his
loft. Any other locations mean more electrical work and routing of cables
which he is hoping to avoid.

Must make the plumbing rather difficult?
BTW, FCU must be in the bathroom, or immediately outside, not in the loft.
It has to be positioned so as to be under the immediate control of a person
working on the shower (or it has to be of a type which can be locked in the
off-position with a padlock).

Of course, the plumber should know all this, or he wouldn't be doing the
wiring for the shower at all.

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]