On 3 Dec 2020 at 10:28:18 GMT, "Chris Green" wrote:

I have just been trying to work out the (electrical) zones for our
wet room and I'm finding it a bit difficult.

The fundamental difficulty is that I can't really see how one decides
(for Zone 2) what is "... beyond zones 0&1, extends 60cm horizontally
and ..." as there is no well defined 'edge' of the shower. This
really carries on from "Zone 0 - The interior of the bath or shower",
the shower doesn't have an 'interior', there isn't even a shower
curtain.

Is there some sort of conventional 'size of a shower' which is a
defined horizontal distance from the shower head?

It is{1] a certain distance from the shower *fixed outlet* where the flexible
pipe for the shower head screws in. Hard to convince our electrician, but
that was the rule, at least a few years ago.



[1] I haven't actually checked the current 18th edition of the regs, our
shower room was built under the 17th edition.

--
Roger Hayter