answersLogoWhite

0


Best Answer

In household wiring it is the "hot" wire that carries current to the load.

User Avatar

Wiki User

11y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is black wire use for?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Electrical Engineering

Can a 220-4 wire cord be reduced to 3 wire?

When flexible cords are talked about the ground wire is in the conductor count. A four wire cord will have black, red, white, and green coloured wires in the flexible cable set. A three wire cord will have a black, white and green coloured wires in the cable set. To use a four wire cord to carry 220 volts just use the black, red and green wires. Connect to the cord ends. Black and red to the outside blade terminal screws and the green wire to the green ground screw. To use a three wire cord to carry 220 volts just use all of the wires. Black and white to the outside blade terminal screws and the green wire to the green ground screw.


How do you install a ceiling fan to plug into a wall outlet and should you use two or three strand electrical cord and which strand on the cord connects to which fan wires?

The neutral wire will have writing or ribs on it and connects to the white wire. The smooth wire is hot and connects to the black wire. Use 3 strand wire in size AWG # 16. If the fan has a light it will have a blue wire. Connect that blue wire to the black wire.


Do you need 3-wire romex to feed bedroom ceiling box by electrical code?

No, you can feed it with a 2 wire Romex + ground. It depends on what is mounted on the ceiling. If it is just a light all you need is 2 wire + ground Romex. However if it is a fan/light and you want to control each one independant of the other you will need to use 3 wire Romex + ground. This is of course if you have 2 seperate switches. You would then connect the red wire to the blue light wire and the black wire to the black fan wire. If you use 2 wire Romex just connect the blue and black fan/light wire to the black wire in the ceiling box.


Is there a difference between black wire and red wire?

Yes, the red wire is a positive wire (+) and the black wire is a negative wire (-) :D


Is the red wire connection usually on the left and the black is on the right?

There is no code rule designation which side that the wire colours are terminated on. I always use red on the left and black on the right when connecting to a distribution panel.

Related questions

What wire can you use as a remote for your amp?

I would use some new wire, preferring the black kind to the other colors.


Where do I find the reverse light power wire on a 2003 Dodge Ram 2500 and what color is it. Did Dodge use the traditional black wire for the ground?

Purple wire black stripe.


Can a 220-4 wire cord be reduced to 3 wire?

When flexible cords are talked about the ground wire is in the conductor count. A four wire cord will have black, red, white, and green coloured wires in the flexible cable set. A three wire cord will have a black, white and green coloured wires in the cable set. To use a four wire cord to carry 220 volts just use the black, red and green wires. Connect to the cord ends. Black and red to the outside blade terminal screws and the green wire to the green ground screw. To use a three wire cord to carry 220 volts just use all of the wires. Black and white to the outside blade terminal screws and the green wire to the green ground screw.


How do you install a ceiling fan to plug into a wall outlet and should you use two or three strand electrical cord and which strand on the cord connects to which fan wires?

The neutral wire will have writing or ribs on it and connects to the white wire. The smooth wire is hot and connects to the black wire. Use 3 strand wire in size AWG # 16. If the fan has a light it will have a blue wire. Connect that blue wire to the black wire.


Do you need 3-wire romex to feed bedroom ceiling box by electrical code?

No, you can feed it with a 2 wire Romex + ground. It depends on what is mounted on the ceiling. If it is just a light all you need is 2 wire + ground Romex. However if it is a fan/light and you want to control each one independant of the other you will need to use 3 wire Romex + ground. This is of course if you have 2 seperate switches. You would then connect the red wire to the blue light wire and the black wire to the black fan wire. If you use 2 wire Romex just connect the blue and black fan/light wire to the black wire in the ceiling box.


Why does a battery snap have a red wire and a black wire?

Red wire=positive Black wire=negative


Is there a difference between black wire and red wire?

Yes, the red wire is a positive wire (+) and the black wire is a negative wire (-) :D


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

Connect the black wire to the incoming hot wire and the red wire to the out going load.


When wiring a house do you have to use the black wire as the hot wire?

No, there are different occasions when the red of a three wire cable gets used as a hot wire. There also times when the white wire gets used as a hot but has to be re identified as a hot with marking tape. When wiring baseboard heaters the cable used is red and black with no white wire in the set.


Can you bypass the dimmer switch in a 94 Honda accord and not use it at all?

I was playing with mine and if you bridge the red and black wires, your instrument panel will light up. DON'T bridge the red/black wire and the black wire - it will blow a fuse.


How do you wire the last fixture in a parallel circuit?

The last fixture in a parallel circuit is wired the same as the first. In North America, all of the fixtures are wired black wire to black wire and white wire to white wire. The black wire being the "hot" wire and the white wire being the neutral wire.


Is the red wire connection usually on the left and the black is on the right?

There is no code rule designation which side that the wire colours are terminated on. I always use red on the left and black on the right when connecting to a distribution panel.