On Wed, 26 May 2004 00:02:53 +0100, "Andy Wade"
strung together this:

Nope, that's it.

That's not quite true because of the note above Table 54H in the regs which
says "Local public electricity supply network conditions may require a
larger conductor" - so, strictly speaking, you should check with the
relevant distributor to see if they require a larger size.

Fair point, however it is 'most likely'' that 10mm will suffice. I
doubt anyone at wherever it is that the OP rings will have a clue what
he's on about anyway!

I've no idea how often this applies, but when I used to have dealings with
the old Eastern Electricity on such matters they certainly preferred the use
of 16mm^2 main bonding. The issue may also come up in London, where fault
levels tend to be higher.

Can't say as I've ever come across any of that, just goes to show.

Given that you need a reel of 16 mm^2 cable for the main earthing conductor,
you may as well use the same size for main bonding, just to be on the safe
side, and avoid having to carry a reel of 10mm^2 as well.

Hmmm, you can, I'll stick to 10mm thanks! I can't see someone rewiring
there own house buying 100m of 16mm earth to use 3m of it though! I
think you're aiming your comments at the profesionals now, shouldn't
that be moved OT!
--

SJW
A.C.S. Ltd