A wiring diagram is a simplified conventional pictorial representation of an electrical circuit. It shows the components of the circuit as simplified shapes, and the power and signal connections between the devices.
Electrical Wire Colors Usa. White or gray neutral n. 3 phase phase 2 red. 2 120 208 240 volt ac wiring color codes in usa.
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Below we have also included some of the more common colour codes used throughout the us and europe in case you have imported appliances and wiring. Hot active wires may be any other colors except these. In case of a three phase power supply the combination of red yellow and blue are used for the active line power conductors black color for neutral conductor and green or green yellow for protective ground. This color of wire is used to transfer power to switches and outlets in all types of circuits.
The common colors are black red blue brown yellow and orange high leg delta insulated wire sometimes other colors.
What the color of an electrical wire means black electrical wires. The protective ground must be bare green or green yellow striped. In 220 volt circuits red wires are the secondary live wires. 3 phase phase 1 black. Single phase line hot black or red.
