mc spake thus:

I gather that you are in the UK (hence "ring" wiring structure, which
I like, instead of the American daisychain) and that everything is
in the same room. It should work fine.

So how does house wiring work in the UK? Is there more than one
grounding ("earthing") point? And how is this better?

(Here, the Merkin practice is to ground the "service panel"--the box
where the big wires come into the house--to a single ground rod, with
everything running downstream from that.)

By the way, this brings up a strange experience I had recently doing
some wiring. I was working for a guy who owns two houses right next to
each other, and he wanted to run a cable TV connection from one house to
the other. I was about to connect the cable in the attic of the house
that was the source of the signal when I got a little tingle. After
grabbing a VOM, it turned out that there was about a 20 volt difference
between the two cable grounds.

Was this due to power line potential differences, or to cable signal
potential differences, or something else? The cable guys do their own
grounding outside, and I don't think they put in any bonds to the
electric service ground. In any case, the whole project was abandoned
then and there as a bad idea. (It occurred to me that a cable
transformer could have solved the problem, but then so could doing the
thing the right way: just getting both houses wired for cable.)


--
Pierre, mon ami. Jetez encore un Scientologiste
dans le baquet d'acide.

- from a posting in alt.religion.scientology titled
"France recommends dissolving Scientologists"