The blue wire, also referred to as the neutral wire, has the function of transferring electricity away from the appliance. The brown wire, otherwise known as the live wire, transfers electricity to the appliance. The combination of these wires is referred to as a circuit.
What is blue electrical wire used for?
Blue wires are used as travelers, usually on three- or four-way switches (controlling a light from multiple locations) or as switch legs for things such as fans or lights. Yellow wires are almost always used as switch legs for outlets, fans, or lights.
Does blue wire go to black or white?
Black wire is for the fan. Blue wire is for the light, if light is included with the fan. White wire is neutral.
Is a blue wire negative or positive?
Blue is Negative, and White is Positive. There is nothing like positive or negative in a wire unless and untill it is connected to a power source. A blue wire may be connected to negative terminal of a power source and black may be connected to positive.
Is blue wire ground?
Other Colored Wires
These are the most common colors used in electrical wiring. … Blue and yellow wires are sometimes used as hot wires and as travelers, green wires (and bare copper wires) are ground wires, and white and gray wires are neutral.
Does black wire go with blue wire?
The black and blue wires need to be connected. … You will be able to control your fan and lights with a single switch. You should twist the black and blue wires the same way you did the previous wires.
Can I connect a blue wire to a black wire?
Why Yes; you can connect if both wire are to be use for same purpose, that is if the black wire is use for neutral and you intend to use the blue wire for neutral you can connect.
Does blue wire go to white?
The blue wire from the ceiling fan gets connected to the second live wire from the ceiling. This second wire can vary in color but is most commonly red or black. This connection allows you to power your lights from the second switch. Connect the white grounded wire from the ceiling to the white wire from the fan.
Is blue and white positive or negative?
White is positive while blue is negative.
Can a blue wire be live?
Blue = Neutral
The neutral wire transfers electricity away from the appliance to avoid overloading. It is located at the circuit end to enable connection once electricity has flowed around the earth and live wires. It is highly unlikely that you will have an electric shock on contact with a blue wire.
Is green or blue wire positive?
The blue is negative or return, so that will go to white. Green with yellow stripe is the ground and will go to the building green. The active wire (high potential) is coloured brown (used to be red).