Our mains water enters in the cellar & then runs up the side of the
cellar steps. Electricity comes in from the rear to the CU. Hence a
longish run (15m) of main bond cable needs to run alongside the water
pipe between CU and incoming water.

I am about to put Climaflex pipe insulation around the water pipe:
What is the correct way of running the bond cable - ie (a) clip to pipe
and cover both in Climaflex (b) clip cable to outside of Climaflex or
(c) clip bond cable to wall away from the Climaflex? [(c) is the least
convenient]

Thanks for any advice.

Owain wrote:
ironer wrote:
Our mains water enters in the cellar & then runs up the side of the
cellar steps. Electricity comes in from the rear to the CU. Hence a
longish run (15m) of main bond cable needs to run alongside the water
pipe between CU and incoming water.
I am about to put Climaflex pipe insulation around the water pipe:
What is the correct way of running the bond cable - ie (a) clip to pipe
and cover both in Climaflex (b) clip cable to outside of Climaflex or
(c) clip bond cable to wall away from the Climaflex? [(c) is the least
convenient]

(c) is the correct way.

You could probably do (b)

I definately wouldn't do (a)

What would you consider to be wrong with (a): just the fact that it's
touching the pipe (why, cos it's already electrically connected to it?)

David

I definately wouldn't do (a)

What would you consider to be wrong with (a): just the fact that it's
touching the pipe (why, cos it's already electrically connected to it?)

David

Yes, and if there's enough current flowing in the bonding cable to make
thermal insulation a bad idea, you already have a problem!

On Mon, 13 Nov 2006 22:03:31 -0000, Newshound wrote:

I definately wouldn't do (a)

What would you consider to be wrong with (a): just the fact that it's
touching the pipe (why, cos it's already electrically connected to
it?)

Yes, and if there's enough current flowing in the bonding cable to make
thermal insulation a bad idea, you already have a problem!

Like has been said enough current in that conductor long enough to give
thermal problems you have a much more serious problem elsewhere. I'd go
against being under the insulation as the wire is then hidden and damage
might not be obvious (vermin nibbling round the back etc). I think I'd go
for b) outside but on the climaflex (assuming compatibilty between the
plastics is OK).

--
Cheers
Dave. pam is missing e-mail

Lobster wrote:

What would you consider to be wrong with (a): just the fact that it's
touching the pipe (why, cos it's already electrically connected to it?)

Wiring regulation 528-02-04 is the one usually cited as disallowing this
sort of thing:

"Where a wiring system is to be installed in proximity to a
non-electrical service it shall be so arranged that any foreseeable
operation carried out on either service shall not cause damage to the
other."

IOW a plumber may disturb the wiring, or an electrician the plumbing.
So only method (c) complies with BS 7671, IMHO.

--
Andy