What color is typically used for a grounded conductor in AC wiring?

The grounded conductor in AC wiring is typically represented by white. This convention is established in the National Electrical Code (NEC) and is widely accepted in electrical installations. The white color designation helps to universally identify the neutral wire, which serves a critical role in the electrical system by carrying the return current back to the power source.

In an AC circuit, the grounded conductor is important for safety, as it provides a low-resistance path for fault currents and helps to stabilize the voltage throughout the electrical system. By using a standardized color such as white, electricians and technicians can easily identify the function of each wire, reducing the risk of improper connection and enhancing overall safety.

In contrast, other colors are assigned specific roles in electrical wiring. For instance, green is designated for grounding (protective ground), black is typically used for hot wires, and red may denote a secondary hot wire in a multi-wire branch circuit. Understanding these color codes is essential for ensuring safe and effective electrical installations.