In article ,
TheScullster wrote:

"Dave Plowman (News)" wrote

The house is a 25 year old Barratt's timber framed type. With weird
wiring. The lighting is wired in singles - 1mm grey double sheathed
cable with a red or black inner. Earth just ordinary green/yellow. All
just draped across the joists for the shortest run. The lines looped
to the next in the switch box - and the neutrals looped to the next in
the ceiling rose. The earth seemed to run at random - but was looped
at every switch or ceiling rose I looked at.

I have a 1970s build property, part of a small(ish) estate west of Hull.
The lighting is wired similarly, but the earth is catered for by the use
of singles&earth. Enough of the individual line and neutral cables have
integral earth to ensure all switch and ceiling rose points are earthed
- fortunately.

A single cable with an ECC? Never seen that one.

Takes a bit of sussing when you're used to the modern
twin&earth loop-in standard. Can also be even-more-confusing when some
pratt has used black singles for line duty (this was later work not
original install).

Plenty older houses were wired in singles - but before TW&E became the
norm. And this house was built long after that was the case - and long
after earthed lighting circuits too.
As it happens it's quite convenient in some ways - makes installing a
different light fitting somewhat easier since there's no loop in loop out
ceiling rose to worry about.

Phil

--
*A closed mouth gathers no feet.*

Dave Plowman London SW
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