DIYbanter - View Single Post - Is RCD/RCBO mandatory for electric shower?

ARWadsworth

BruceB wrote:
In article ,
says...

BruceB wrote:
In article
,
says...

In article ,
says...

Is RCD/RCBO protection now mandatory?

Not because its a shower as such[1], although fitting one for
a shower is very common. However if the cable run is
"unprotected" (i.e. cables not enclosed in an earthed metal
screen, and its buried in a wall at a depth of less than
50mm), then it would need an RCD to comply with the
requirements for cable protection.

I believe that is wrong now.

If you replace the cable with a larger one then the work you
have done has to comply with the current regulations which
require an rcd for every circuit in a room with a bath or
shower.

It is regulation 701.411.3.3

I disagree. An electric shower could be fitted to a 16th edition
regs bathroom if the new shower is integrated with the existing
supplementary bonding.

Can you say why you think that and give an authority. All new work
has to comply with *current* regulations. I cannot see how this long
after the introduction of the 17th edition you can elect to use the
16th (or 15th, 14th, 13th etc) edition.

However I would agree with you if you were just changing the shower
unit, but not if you are doing any work on the circuit.

Lets start again just in case I jumped the gun or just ****ed up in my
description of what you can do:-).

A new shower circuit would need to be RCD protected as per 701.411.3.3 and
meet the 17th edition regs (as you said)

Let's not throw reg nos at each other and find a way to agree or disagree
and hopefully help other learn.

I am suggesting (and I was not clear about that) that a new electric shower
could be installed using the 17th edition requirements into an existing 16th
edition bathroom setup without having to RCD all the existing circuits in
the bathroom if you extend the existing supplementary bonding into the new
shower circuit.

--
Adam