teabird wrote in
:

Hello,

I want to replace a ceiling light fixture with a ceiling fan and have
a question about the wiring. The light is controlled by 2 3-way
switches, meaning I can turn on the light from 2 sides of the room.
The fan has a blue wire that powers the lights, and a black wire that
I assume powers the fan, a green wire is the ground and *1* white
wire.

I can install the fan and hook up the lights to the existing 3-way
circuit, but I'll need to run another conductor for the fan. No
problem, there is an outlet below where I want to put the variable
controller for the fan. But when I get to the fan, I'll have to
connect the white wires together to complete the circuit.

Question: isn't there a possible hazard if the two circuits are
different (the one for the fan and the one for the lights), is there a
possibility that I'd energize one circuit from the other through the
common neutral in the fan box?

Thanks,

Teabird




They sell electronic remotes for fan/lights that do not need two separate
hot lines.

If you take two hot wires from two different circuits and those two
circuits happen to come from opposite sides of the panel box (left &
right buss bars), those two hot wires will have 220 between them. Doesn't
sound like a good idea does it?