In article ,
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.


That sounds like what existed here on an old installation. Where the
incoming lead water main and the sheath to the mains riser provided the
rudimentary earth.

If you can use the mains riser for earth it needs the correct clamp - but
that's really a job for the supply company to make sure it is up to it.

--
*How much deeper would the oceans be without sponges? *

Dave Plowman London SW
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