Robin wrote:

On 25/05/2020 11:48, wrote:
On Monday, 25 May 2020 09:59:17 UTC+1, wrote:
On Monday, 25 May 2020 09:44:10 UTC+1, Jack Harry Teesdale wrote: On
24/05/2020 20:49, wrote:

Had a proper look at the earthing on the new place today. The supply
earth is provided by a clamp onto the sheath. It's not, so far as I
can, a tightenable clamp.
https://www.flickr.com/photos/383551.../dateposted-pu
blic/ It has a 10mm cable in which looks like it only just fits,
can't see how I'd get a 16 in there. (tails are - at the moment - 25mm
as far as a Henley, then down to 16mm) I noticed that the clamp
rotates freely around the sheath. Is that to be expected? I will get
round to measuring the earth soon when the replacement test lead turns
up. No, the clamp should not move and will be an ineffective earth
connection.

Report it to your DNO and they should either rectify it or provide
PME. (this may be delayed due to Coronovirus Regs)

Thanks. That's what I thought, but nice to have it confirmed.

I rang up UK power and they were somewhat unhelpful, and want to know
what Ze is before they will do anything (I tried arguing that what it is
NOW is irrelevant, and I don't want to start waggling their clamp to
demonstrate that it will change). Well, gives me something to do. I
will call back and hope I get someone more helpful.

There's a lead water main. Turns out it does have its uses....

If you're 100% RCDed it's not ideal, but not an immediate threat to
life. If you're not RCDed it is.

Be aware that they will only reconnect your supply after the work if
your water & gas/oil are bonded.



and IIRC to current (continuous 10mm) standard

What does 'continuous' mean in this context? Surely it doesn't mean no
joints? Or does it means no thinner sections?

--

Roger Hayter