Red Blue Green Electrical Wire

The ground wire is usually left bare but in some cases the ground wire color is green.

Red blue green electrical wire.

The usa have their own wiring colours for electrical circuits black red and blue are used for 208 vac three phase. Like black wires they can also be used in some types of switch legs. In the standard wire color code the hot wire in a cable with two conductors plus ground is black and the extra hot wire in a three conductor set is red. If the ceiling fan does not have a light then the red wire and the blue wire may be capped off using a wire nut.

Outdoor ceiling fan wiring. The standard ground wire color is either bare copper or green. The color of the sheathing indicates recommended. Australia also have a different wiring colour standard.

Non metallic or nm 120 volt and 240 volt electrical cable come in two main parts. Canada ac power circuit wiring. The uk s new cable colours for plugs are now harmonise with europe s power cable colours for ac dc. According to standards in use since the mid 1900s a wire color code identifies the purpose of each wire in an electrical circuit.

Blue and yellow. 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. The neutral is white the hot live or active single phase wires are black and red in the case of a second active. Three phase lines are red black and blue.

Electrical cable and wire color markings. So first they made it into 64 pairs of two wires each there were other advantages and then using 6 colors and having a second color for the second wire e g. The outer plastic sheathing or jacket and the inner color coded wires the sheathing binds the inner wires together and its outer markings indicate the number of wires and size of wire gauge within the sheathing. Canadian wiring is governed by the cec canadian electric code.

Blue yellow violet and brown wires often act as the travelers to transfer power between the switches in 3 way and 4 way switch. The white wire is always neutral and when the cable has only two conductors as most 120 volt cables do the hot wire is black. Always assume the red wire in those applications is live. It s possible to link two red wires together or a red wire to a black wire.

However all electrical wires regardless of their function may carry an electrical current at some point and should be treated with equal caution. Brown orange and yellow are used for 480 vac. White orange white blue red green they could have a means of identifying each of the 64 pairs of wire. In addition red wires are used to connect hardwired smoke detectors to the home s power system.