"Nearly Done!" wrote in message
om...
Thanks for your help so far fellas! What I'm thinking of doing is
taking a feed from the circuit (which is a junction box circuit) into
another junction box and have the light fitting, fan and switch all
converging in there (wired up as the last ceiling rose on a ceiling
rose circuit). Would that be OK or would it be better for everything
to be wired together at the light fitting?

You'll have more wires than terminals in a standard JB. I'd suggest using a
loop-in light fitting and taking everything from there.

An isolating switch will be fitted between junction box and fan. The
fan doesn't require an earth as per the wiring instructions.

Yeah, but it's good practise to use 3+E (as suggested by Owain) and to leave
the earth unused and safe in the fan. Connect the other end in the fitting -
doesn't hurt to have earth for when you drill thro' the cable ;-)
Besides if you've been following some of the other threads you'll have
noticed how the IEE change their requirements everytime there's a new set of
regs so for the 17th edition you'll need to earth double insulated equipment
and will only be allowed 6 volts in a bathroom.

I'm OK with how the switch and the light should be wired up in the
junction box. What I'm not sure about is where the switched live,
permanent live and neutral from the fan need to go.

Permanent live from the loop - lives, switched live from the return to the
light from the switch, neutral from loop - neutrals. Hope that makes sense.
Richard