What is the standard color code for a grounded conductor in electrical installations?

The standard color code for a grounded conductor in electrical installations is white. In the National Electrical Code (NEC), the white conductor is specifically designated as the neutral wire. This conductor is grounded to ensure safety and prevent electrical shock. Neutral conductors return current back to the electrical source and are essential for completing the circuit.

Other colors have specific meanings as well: black typically designates hot wires, green is used for ground wires, and red is often used for secondary hot wires in 240-volt installations. The use of standardized colors is crucial for ensuring safety and consistency in electrical work, allowing electricians and inspectors to easily identify the purpose of each wire in a system.