Color Code of wires • A wire cable is available in white, blue, red, black or green color. A blue, red or black colored cable would constitute the live wire. A white insulated wire is neutral, while a green wire is the earthing cable.
Copper and Aluminum Wire • Aluminum is the most commonly used material in electric wires but copper is a superior electrical conductor compared to aluminum.
Voltage & Current Capacity • The current or voltage capacity of the wire is related to the gauge and material of the wire cable.