What type of wire is indicated by the color gray in electrical systems?

In electrical systems, the color gray is standardized to represent the neutral wire. The neutral wire serves an essential function as it returns current back to the power source, completing the electrical circuit. Its designation as gray helps to distinguish it from other conductors, particularly the live wires, which typically use colors like black or red, and the ground wire, which is often green or bare.

Gray is specifically used for neutral conductors in various electrical codes, including the National Electrical Code (NEC), to enhance safety and clarity in wiring installations. This color coding helps electricians and technicians to identify wires quickly and reduces the likelihood of misconnection during installation or maintenance, which could otherwise pose hazards.

The correct understanding of color coding in electrical wiring is crucial as it facilitates proper safety practices and adherence to regulatory standards in electrical work.