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It is because the nec standard.

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Q: Why are the black and white wires hot?
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Related questions

Hot wires in home wiring are normally colored and ground wires in computers are normally colred?

hot wires are black, white wires are ground


Which of the two wires is hot which is neutral?

If this is a home wiring question and the wires are black and white then black is Hot and white is Neutral. If you also have a red wire, it is the other hot wire, and either the black or the red wire to the white one would be 120 volts, and red to black would be 240 volts.


What are the live and neutral wires in a ceiling light?

The live wire is the wire that carries electrical current to the light fixture, while the neutral wire provides a return path for the current to complete the circuit. In a ceiling light, the live wire is typically colored black or red, while the neutral wire is colored white or gray. It is important to properly identify and connect these wires to ensure safe operation of the light fixture.


How do you install a swag kit with two wires to a light with three wires?

You will first need to determine which wire is the hot wire in the ceiling box. Connect the swag kit's two wires to the hot wire and the neutral wire in the ceiling box, leaving the third wire unconnected. Ensure all connections are secure and insulated. You may need to consult a professional electrician if you are unsure about the wiring.


What to do with the white wire in track light with black green and white wires if the house does not have a white one?

If the house wiring does not have a white wire, you can cap off the white wire from the track light with a wire nut and electrical tape if necessary. The white wire is typically used as the neutral wire, but if it's not present in your house wiring, capping it off safely will ensure the track light functions correctly with the available black and green wires.


Have a red white black wires for a dryer plug what wires are hot ones?

In a typical dryer plug, the two hot wires are usually the red and black wires. The white wire is typically the neutral wire and the green or bare wire is the ground wire. Always consult the manufacturer's instructions to be sure.


How do you wire 220V with 2 black 1 white wire?

Your black wires are your hot wires. The white is your neutral or common. It would be best to run an equipment ground (green wire) too.


You have two white wires and two black wires which one is the ground?

black wire is hot wire .And the white is the common or white is ground. Depends on what your talking about in an outlet or car battery. In a outlet the ground wire is green or bare copper. neutral is red and hot is black (I remember it by hot can kill you so black is death) if I am not mistaken. As for a car battery i think it's the opposite red is hot and black is neutral.


How do you install 220 receptacle with white black and bare wires?

Assuming the wires are the correct gauge for application and breaker you use black and white wires as hot. Put red electrical tape on each end of white wire and connect red and black to the breaker output and bare wire to ground lug in panel. At receptacle connect black and red to hot contacts and bare wire to ground lug.


What color is the hot wire in a power window in a 2004 Chrysler sebring?

The wires for the left front window are red/black for up and green/black for white. For the right front window, the wires for up are red/white and the wires for down are green.


Outside porch lamp has no box just two wires coming in black wires are tied and don't connect to fixture just the white wires what is going on here?

It sounds like the black wires may be hot wires coming from the power source and the white wires could be neutral wires. The black wires are typically connected to the fixture's black wires. If the black wires aren't connected and capped off, the fixture won't receive power. It's important to properly connect all wires to ensure the fixture functions safely.


How do you connect a 240 v cooktop with 4 wires to a service panel with 3 wires?

You cannot directly connect a 4-wire cooktop to a 3-wire circuit. To do so, you will need to upgrade the circuit to a 4-wire setup by running a new cable that includes the additional ground wire. This is necessary to ensure the cooktop operates safely and meets electrical code requirements. It's recommended to hire a licensed electrician to perform this upgrade.