What Is A Blue Wire Used For?

What wires go together?

There is a white wire that is the “neutral,” and, finally, a bare copper wire that is the ground wire.

When electrical wires are joined together the black wires must be hooked together, the white wires must be hooked to the white wires, and the ground wires must be hooked together..

What happens if you connect wires wrong?

If you connect wrong wires in high voltage or high amount of current carrying appliances,then you have 99% to get short circuit and the components inside may get blowed, and you may notice smoke sometimes this may cause fire and also burst.

What is blue wire on thermostat?

The Rh wire connects to the heating system. This wire may be red without an “H” attached, in some cases. Blue. The blue wire on the thermostat is the Common or “C” wire.

Is Blue a positive wire?

It’s a standard practice that in a two wire system, blue one should be connected to a positive terminal and black one should be connected to negative a terminal. … Earth Wire/Ground Wire- Green Or Green with yellow. So, the Blue & Black wire will be Positive and Neutral respectively.

Is blue wire same as red?

Fixed wiring electricity supply requires specific wiring colour regulations (bs 7671) to identify different power lines in different countries. The USA have their own wiring colours for electrical circuits, black, red, and blue are used for 208 VAC three-phase; brown, orange and yellow are used for 480 VAC.

Does blue wire go to black or white?

Connect the white wires (neutral wires) from your fan and ceiling together. Connect the green wire to your household ground wire (copper/bare wire). Connect the black wires together. Lastly, connect the blue wires together, or the blue wire to the black wire for lights.

Does blue wire connect to black wire?

Note that the blue wire is connected to the black fan wire so that they can both be operated by the same switch. Connect the ceiling fan blue wire to both the black fan wire and the black wire from the ceiling. This connection allows both the ceiling fan and light kit to be powered by a single light switch.

What is the blue wire in a light fixture?

Look at the wires coming from your ceiling fan. The black wire from the ceiling fan is the hot wire that runs the motor and turns the fan blades. The white wire is neutral and completes the fan circuit. The blue wire is the hot wire for the ceiling fan light fixture.

What is a blue wire?

Yellow and blue electrical wires are also used to carry power but are not for wiring the outlets for common plug-in electrical devices. These colors are used for the live wire pulled through conduit. … You’ll use blue mainly as a traveler for a three-way or four-way switch.

Is blue wire live or neutral?

The blue wire is known as the neutral wire and its job is to take electricity away from an appliance. The brown cable – known as the live wire – actually delivers electricity to your appliance. Together, these two wires form a complete electric circuit.

Which color wire is positive?

redPositive – The wire for the positive current is red. Negative – The wire for the negative current is black. Ground – The ground wire (if present) will be white or grey.