On 28/05/2020 18:26, ARW wrote:
On 27/05/2020 21:44, Robin wrote:
On 27/05/2020 20:14, ARW wrote:
On 27/05/2020 16:11, Robin wrote:
On 27/05/2020 13:51, Roger Hayter wrote:
snip

Sorry too that for some reason I thought I knew UKPN was your DNO.
You mean if you fix a 2" X 3/4' chunk of brass on the wall with
several
green and yellow wires going into it you would have to label it
"safety
electral earth etc"?Â*Â* And should you enclose it to discourage
interference?

Yes it makes sense, though my electrican did not bother.Â*Â* Maybe he
(or
I) might have done if it hadn't been in a workshop.


All I meant was that I agree with those who argue a screwed
connection in a main bonding conductor brings it within
514.13.1((ii) ("a point of connection of every bonding conductor to
an extraneous-conductive-part") and so requires the warning notice.
It can be argued the other way but I was persuaded by the fact that
the join must be accessible (else you wouldn't use a screwed
connection, would you?) so it makes sense to require a warning
notice there as at connections to pipes etc.

What happens in practice is of course another matter.Â* But I've seen
labels used where the bonding used a combination of cable and pipe.

I don't know just what your chunk of brass was for but
514.13.1((iii) provides that no label is needed for a MET by
switchgear.



Just call it an earth marshalling bar?

Stickers that say "earth warning do not remove" are cheap



I'll be guided by you!

I've seen those labels on EMBs a few times (once inside a CU) but
never really understood why they are used instead of BS 951 labels or
how they finesse 514.13.1.



Personally I do not think it matters that much.

But some people like to see safety stickers and they get paid to look
for non problems.


Fair point. I'll put me clipboard away.

--
Robin
reply-to address is (intended to be) valid