John Rumm wrote:
On 15/01/2012 16:31, PeterC wrote:
After asking about running Neutral to a switch I decided to put both
lights on to 2-way. Looked for diagrams - although the circuits
aren't complex, the colours seem to be variable. The only tip I had
was from Adam re. using incoming grey as Neutral.
Looked at several diagrams that I found and most of them, including
the Wiki, are using the old colours.

Which wiki were you looking in? Ours uses new colours:

http://wiki.diyfaq.org.uk/index.php?..._Way_Switching

I also want to run the supply and both lights from one switch and
almost all digrams show one light from each switch.
Anyway, I've done a diagram in LibreOffice Draw (couldn't quickly
find any Freeware for the purpose) and have put it up as a .png. I
think that the wires aren't crossed and that the colours are OK,
but...! http://tinypic.com/r/2ntlnpt/5

If you visualise the "landing light" at the other switch, then it
looks close to being a functional equal to:

http://wiki.diyfaq.org.uk/images/5/5...itchingSml.gif

with the exception you have shared a permanent live strapper...

But the circuit looks fine. It is unconventional as you would normally use
two 3 core and earth cables between the switches, but that is not a rule. I
have done similar installs where I was passing the cables through existing
conduit that would not take 2 x 3 core and earth cables and there had to be
no damage to the downstairs walls.

--
Adam