On Wed, 03 Dec 2003 22:29:15 GMT, Martin Angove
wrote:

It wasn't that which caused the problem, it was the suggestion that
for a run-on fan you should wire the "permanent live" from such a spur,
but take the "switched live" from the (e.g. bathroom) light switch. In
this instance you have connected the fan across two circuits which
*should* be separate for all the reasons already mentioned (refer to my
previous reply).

Ding! Sorry, my lights have just switched on!

I certainly didn't mean it to be wired that way, and you are
absolutely right about me being locked up if that's what I
suggested.....

What I was thinking was that the fan would be standalone and not
controlled by the light switch. In our current house for example our
bathrooms have a fan which is controlled explicitly by a switch
outside of the bathroom, and I assume that this would be wired to the
ring main (switching the lights on and off has no effect on the fan).

This is the kind of point which to many people seems so blindingly
obvious as not to need labouring (oh boy, after last night, do I know
about labour!) but which to the person on autopilot can quite easily
lead to a major safety issue. Again, for clarification of the possible
safety issues I refer the reader to my previous reply on the current
version of this thread :-)

I need to take more care about expressing myself.....

PoP