In article , A.Lee
writes
John Rumm wrote:
A.Lee wrote:
I've been renovating the G/Fs bathroom this week, ....[shower supply]
looking like it is a spur from the cooker supply

Just looking like, or is it actually on the cooker supply?

Thinking about it, I was slightly sidetracked by the 'Cooker' on the
separate fuse. It is in fact a gas cooker, which obviously replaced the
previous electric cooker, so should be no problems with overloading the
cable.
It is a 30A fuse, with the relevent cable (6mm iirc).

There are no RCDs anywhere in system.

Prior to the 17th edition regs[1], there were plenty of cases when an
electric shower could be adequately protected and safe even without a
RCD.

But wouldnt fitting a RCD be much safer than it being protected only by
a fuse?

I'd guess that 3/4 of all/old electric shower installations don't have
RCDs and I've yet to hear of any Daily Whail exposes on grannies being
killed off, so the old concept doesn't seem that flawed to me, provided
! that the shower is wired and earthed correctly.

Mine is on an MCB only and I am perfectly happy with that, it's even one
of the early Dolphin ones with a direct and uninsulated heating element
in the water flow.
--
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