Answer for USA, Canada and countries running a 60 Hz supply service.
Yes. this is a type of connection that is used to wire a split receptacle usually in the kitchen for counter plugs. Look on the back of the receptacle at the gold coloured screws, there is a tie bar that connects the screws together pry this bar out by wiggling it back and forth until it breaks. Connect the red wire to the top screw, the black wire to the bottom gold screw and the white wire to the silver coloured screw. If this connection is made without removing the tie bar, the breaker will trip, as you are putting 240 volts across the receptacle's top and bottom outlet causing a short circuit.
Three wire circuits are also used to feed individual rooms fed directly from the distribution panel. The black and the white wire are used for all of the receptacles in the room. From the same cable the red and white are used for the lighting circuit in the room. The white wire being common to both circuits.
As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.
Before you do any work yourself,
on electrical circuits, equipment or appliances,
always use a test meter to ensure the circuit is, in fact, de-energized.
IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB
SAFELY AND COMPETENTLY
REFER THIS WORK TO QUALIFIED PROFESSIONALS.
To wire a duplex receptacle using 14-3 wire, connect the black wire to the brass screw (hot), the red wire to the other brass screw (switched hot), the white wire to the silver screw (neutral), and the ground wire to the green screw (ground). For the 14-2 wire, connect the black wire to the brass screw, the white wire to the silver screw, and the ground wire to the green screw. Remember to turn off the power before making any connections and consult a professional if you're unsure.
Yes, you can replace a short length of 14-2 wire with 14-3 wire and not use the red conductor. Just cap off the red wire with a wire nut at both ends to ensure it is not accidentally connected to anything. Keep in mind that the unused red wire must still be properly terminated in electrical junction boxes.
No. You will need a 14/3 with Ground.
Yes, you can run two sets of 3-way switches with one 14-3 wire. The black wire would be the common wire for one set of switches, and the red wire would be the common wire for the other set. The white wire is the neutral wire, and the bare copper wire is the ground wire.
No, you should use a 14/3 or 14/4 cable with multiple conductors to properly wire a three-way switch. Three-way switches require multiple wires to allow for controlling a light fixture from two different locations.
The only way to change a 14-2 wire into a 14-3 wire is to physically remove the 14-2 and replace it with a 14-3.
The '12' and '14' refers to the gauge of the wire. A 14 gauge wire is used for circuits drawing 15 amps or less; general lighting and outlets. A 12 gauge wire is used for 20 amp circuits, like dishwashers, disposals, and microwaves. The '-2' refers to the number of conductors in the wire. 14-2 is a 14 gauge wire with 2 conductors in the sheath. A 14-3 with ground would have three conductors plus a ground in the sheath, for a total of four wires, and is most often used for ceiling fan wiring and three way switches.
16 Ga wire is smaller than 14 Ga. The answer is absolutely NO!
You could but is it a total waste of money and is overkill. Use 12/2 with ground on all 120 volt outlets and light switches.
To wire a duplex receptacle using 14-3 wire, connect the black wire to the brass screw (hot), the red wire to the other brass screw (switched hot), the white wire to the silver screw (neutral), and the ground wire to the green screw (ground). For the 14-2 wire, connect the black wire to the brass screw, the white wire to the silver screw, and the ground wire to the green screw. Remember to turn off the power before making any connections and consult a professional if you're unsure.
No. A 20 amp breaker needs 12 gauge wire.
14-3 Is the standard wire use for residental smoke detectors.
Mr- Deity - 2006 Mr- Deity and the Hard Wire 3-14 was released on: USA: 11 January 2010
Yes, you can replace a short length of 14-2 wire with 14-3 wire and not use the red conductor. Just cap off the red wire with a wire nut at both ends to ensure it is not accidentally connected to anything. Keep in mind that the unused red wire must still be properly terminated in electrical junction boxes.
No. You will need a 14/3 with Ground.
Yes, you can run two sets of 3-way switches with one 14-3 wire. The black wire would be the common wire for one set of switches, and the red wire would be the common wire for the other set. The white wire is the neutral wire, and the bare copper wire is the ground wire.
Actually they have 3. A round ground, wide neutral, and narrow hot. If it only has 2 it is an old outlet with no ground wire. If that is the case in your home, I highly suggest you connect a jumper wire from the ground screw to the white neutral wire on the silver screw to provide some protection. Do this at every outlet in the home. Replace all the outlets in your home with new ones if they are so old they do not have a ground connection.