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In the U.S., the white wire is common. This connects to the wide slot of an outlet. You should verify this, either with an outlet tester or voltmeter, since you don't know who may have been working on the wiring before. If you don't have experience working with house wiring, I would recommend getting a do-it-yourself book to be safe, and make sure your work meets code.
What else can I help you with?
When at a 2 pole light switch and the wire colors shown are black white and green which is the hot wire and which is the common?
the black wire is the hot wire
What is common wire in a three way when all the wires are black?
If this is a new installation then you have a choice of picking any one you wand to make the common wire. Usually a three wire cable used for three way switching has a white, red and black wire in them. If this is an existing installation and you have misplaced which wire is the common you will have to go back to the switch to find the conductor used. Disconnect it from the switch and temporarily place it on the ground wire. Next go to the next junction box and start ringing the wires to ground. When you find which wire is grounded, this is the common conductor.
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.
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 install a lamp that has a white and black wire?
First, you call a licensed electrician... The usual rule in the US at least is that black is the hot wire and white is the neutral wire. (If the wires are some color other than black and white, usually the darker wire is the hot wire.) However, you should never assume that whoever wired your house followed this rule; to be safe, you should always double check.
The black wire in a power connector is always connected to?
Automotive : negative ( ground ) side Household : common ( hot ) side
Which is the positive wire between a white and black wire?
That depends if it is automotive or household wiring. On a car a black wire is almost always ground. On house wiring black is the supply (hot) wire.That depends if it is automotive or household wiring. On a car a black wire is almost always ground. On house wiring black is the supply (hot) wire.
When at a 2 pole light switch and the wire colors shown are black white and green which is the hot wire and which is the common?
the black wire is the hot wire
What color is the common wire used in electrical wiring?
The common wire used in electrical wiring is typically black.
What is the polarity of wires when you have a black and a white wire on a 12 volt radar?
In a DC circuit, the black wire is typically the negative (-) wire and the white wire is the positive (+) wire. To ensure proper connection, always check the specific wiring instructions for the radar system you are using.
Can green wire be used in place of black or red wire?
No. Green should always signify the ground wire.
What is the proper way to connect the black wire on a thermostat?
The proper way to connect the black wire on a thermostat is to attach it to the terminal labeled "C" or "Common" on the thermostat. This wire provides power to the thermostat and is typically connected to the common wire from the HVAC system.
What colour wire goes in com?
The wire that goes in the "COM" terminal is usually the black wire, which is the common wire. This wire is used as the reference point for the circuit.
What color is the common wire typically identified as in electrical wiring systems?
The common wire in electrical wiring systems is typically identified as black.
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.
What wire is always hot the line wire or the load wire?
The Load wire is always hot (black or red wire) and the Line wire is the one that returns to your fusebox (usually white). Answer above is absolutely wrong written by someone who does not know electricity and will get you electrocuted. The white wire is your neutral wire. The black or red coming from the electrical panel is the line wire. the black or red wire going to the next outlet or light fixture is your load wire. in some cases a white wire will be a line or load and should be indicated with black tape on it denoting it is not a neutral. quick recap is Line = power in, load = power out.
On a 110 voltage circuit where the white wire is common the black wire is normally?
The voltage potential supplying conductor.
