You are installing a ceiling fan in your bathroom and you have an outlet wire that runs across the ceiling down the wall so can you cut that wire and splice in the fan wiring using a junction box?

Answer 1

Physically you won't be able to cut this wire that is in place, insert a box and re-splice it. To make a legal splice in an electrical box you have to have 6 inches of wire protruding from the box. This extra wire allows you enough length to splice with wire-nuts and add pigtails to accommodate the switch. Remember all splices in electrical wire have to be made in a junction box. Most electrical fires are started at poor connections and that is why junction boxes are used to contain a fire if it starts. <><><> As you asked this question here, the best advice anyone can give you is to check with a local licensed electrician or your local electrical safety authority to find out for sure what the wiring code in your locality (town/state) says about doing this change to your household AC wiring.

The wiring codes and regulations are much stricter in many countries these days - some codes make it illegal to do this kind of work if you are not a licensed electrician in any room area or space which is likely to get water spray or splashes, such as a bathroom, shower room, laundry, pool area or similar. : IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB

SAFELY AND COMPETENTLY

REFER THIS WORK TO QUALIFIED PROFESSIONALS.

If you do this work yourself, always turn off the power

at the breaker box/fuse panel

BEFORE you attempt to do any work

AND

always use an electrician's test meter having metal-tipped probes

(not a simple proximity voltage indicator)

to insure the circuit is, in fact, de-energized.