one of the black wires should have a red sleeve (bit of red insulating
tape) - if so, that's the switch line.
If not,
Is the old fitting still connected?
Are there 2 or 3 wires going in to the fitting?
Let us know first.
Hugh


--
----------------------------------------------------------------------------
---------
view my philatelic items for sale on ebay at:
http://tinyurl.com/l32i
"Tony Lennard" wrote in message
...
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?

Thanks

Tony Lennard