On Thu, 1 Apr 2004 18:19:30 +0100, in uk.d-i-y "Tony Lennard"
strung together this:

Hello all,

I'm replacing a pendant light fitting, unfortunately the switch cable is not
marked. Also, the two wires going to the light bulb are also not marked.

Is there a way to work out which of the black wires is the switch cable?

If the inside of the pendant has;

1 black cable connected to the brown flex
3 reds connected in the middle in 'loop'
2 blacks connected to the blue flex

Then the single black is the switch and the two blacks are the
neutrals, most probably.

If it's anything different you will have to get a tester out and
check, with the light switched on, which black is live, and which
isn't in respect to earth.
--

SJW
A.C.S. Ltd.