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Answer for USA, Canada and countries running a 60 Hz supply service.In the electrical code that are only two colors that are for a specific use. Green, green/yellow is only for grounding purposes. White is only used specifically for a neutral wire in single phase three wire systems or the neutral leg of a wye three phase system. All other colored wires are used to carry circuit current.

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The white wire, regardless of outlets or ceiling, is often the neutral wire. the black wire is also often a hot wire tho this may not always seem the case. ex: in a ''switch leg" (wires to turn on and off a light switch) the black is often the hot from the loop circuit coming to the light switch. To insert the switch the black is broken and you send the black down to the light switch. Then a "red" goes up from the switch and is connected to the hot side of the light, completing the circuit. This known as a switch leg... In three wire bundles with a ground wire, red can also be used as a hot, as long as you label it.

Red and black often hot wires, white is often neutral. If a white wire needs to be used as a hot it must be marked by wrapping it in black tape and this is sometimes the case in 3- way wiring circuits.

Safety note: don't ever assume a wire is not a "hot wire" just because it has a certain color!

Nor should anyone ever assume what a wire is being used for just because of its color!

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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.
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Is the red wire hot or common?

If wired correctly the red wire will be hot, but any wire can be hot regardless of colour if done incorrectly.


Light switch has 4 wire colors red and white and green and black which is the hot wire?

You have a 3 way switch. Your black wire is the hot wire. Your green wire is the ground wire. Your red and white wires go to the light and other switch. You should have gotten a wiring diagram with your switch.


How do you wire a light switch with only black and red wires?

The black wire is typically the hot wire that carries the electrical current, while the red wire is often used as a traveler wire. Connect the black wire to one terminal of the light switch and the red wire to the other terminal. Make sure to turn off the power before wiring the switch to avoid electrical shock.


If there are a red wire a black wire and a bare wire in a 120 volt supply wire which is the hot wire?

Where there is a red wire involved that usually indicates some type of special switching arrangement or more likely a 240 Volt circuit. In this case there will be 240 volts across the red and black and they will both be hot. Normally for 120 Volts the black is hot, the white is common and the bare wire is ground.


Can a red wire be neutral?

In ordinary circumstances, a red wire is a secondary hot wire in an AC circuit, or the positive power leg in a DC circuit. Red should not be used as a neutral. If it is used for something other than a hot wire it must be labeled on the wire at all connection points- and would STILL be a bad idea.

Related Questions

Is the red wire hot?

Yes, the red wire is typically considered a hot wire in electrical wiring.


Is the red wire hot in this electrical circuit?

Yes, the red wire is hot in this electrical circuit.


Is the red wire hot or common?

If wired correctly the red wire will be hot, but any wire can be hot regardless of colour if done incorrectly.


When was Red Hot TV - Canada - created?

Red Hot TV - Canada - was created in 2003.


Light switch has 4 wire colors red and white and green and black which is the hot wire?

You have a 3 way switch. Your black wire is the hot wire. Your green wire is the ground wire. Your red and white wires go to the light and other switch. You should have gotten a wiring diagram with your switch.


Which wires, red and black, are considered hot in the electrical circuit?

In an electrical circuit, the red wire is typically considered the hot wire, while the black wire is usually the neutral wire.


Is the red wire the negitave on your battery?

No Red is positive and it is hot


What wire is the hot wire on your 1995 Honda accord lx for the horn the blue and red wire or the white?

normally the blue and red wires are hot white is standaed for nutral,


A light switch has three wire colors red and white and green which is the hot wire and which is the neutral?

Red is hot Green is ground White is neutral


How do you wire a light switch with only black and red wires?

The black wire is typically the hot wire that carries the electrical current, while the red wire is often used as a traveler wire. Connect the black wire to one terminal of the light switch and the red wire to the other terminal. Make sure to turn off the power before wiring the switch to avoid electrical shock.


Where can I find a wiring diagram for a 1979 Trans Am to find the hot wire color?

red is usually the hot wire.


Which wire is hot on a lamp cord?

The wire that is hot on a lamp cord is typically the one that is black or red in color.