What color insulation typically indicates a ground wire?

In electrical wiring, the color of insulation is standardized to indicate the function of each wire within a circuit. Ground wires are specifically designated for safety, providing a path for electrical current to safely return to the ground in case of a fault in the system.

The correct answer is grounded in these standards, where the color green or bare (without insulation) is explicitly used to designate ground wires. This ensures that anyone working with or installing electrical systems can easily identify which wires are meant for grounding purposes, thereby enhancing safety and preventing accidental electrical shocks or malfunctions.

Other colors, such as red, black, and white, are commonly used for different functions; for instance, black is often used for hot wires and white for neutral. Therefore, understanding these color codes is vital for anyone working in electrical installations and maintenance.