In residential wiring, what color is typically used for the hot wire?

In residential wiring, the hot wire is conventionally colored black or red. This color coding is important as it helps identify the function of each wire in an electrical circuit. Black is the most common color used for the primary hot wire, while red may serve as a secondary hot wire, particularly in circuits with multiple phases or for switched connections.

Understanding this color coding is crucial for safety and proper wiring practices. It helps electricians and homeowners avoid mistakes that could lead to short circuits or electrical fires. The use of these colors is standardized in many wiring systems, including the National Electrical Code (NEC) in the United States.

In contrast, white is typically used for neutral wires, green is designated for grounding, and blue is not usually standard for hot wiring in residential settings. This clarity in color usage aids in the maintenance and troubleshooting of electrical systems.