How do you identify a neutral wire in a typical residential circuit?

The neutral wire in a typical residential circuit is identified by its white or grey insulation. In standard wiring practices, the National Electrical Code (NEC) designates that the neutral wire must be either white or grey to ensure consistency and safety within electrical systems. This allows electricians and homeowners to easily identify the neutral wire and connect it properly in circuits, ensuring that the electrical system functions correctly and safely.

In contrast, black and red wires typically indicate hot wires, which carry current, while green wires are reserved for ground connections. Understanding these color codes is essential for safely working with electrical systems and preventing accidents or mistakes during installation or maintenance.