What are the three different types of wires?
Live, neutral and earth mains wires In a plug, the live wire (brown) and the neutral wire (blue) are the two wires that form the complete circuit with a household appliance. The earth wire (green and yellow) does not normally form part of the circuit and is included as a safety wire. The 12/2 wire includes two insulated conductors such as one black (hot) and one white (neutral), along with a bare or green ground wire. It is the most commonly used wire for standard 120-volt household circuits, such as outlets and lighting.Complete answer: The three types of wires used in household circuits are Earth wire, Live wire, and Neutral wire.