What is the common color coding for a 120/240V single-phase service in Canada?

The common color coding for a 120/240V single-phase service in Canada uses black for phase conductors, white for neutral conductors, and green or bare for ground conductors. This standard aligns with the Canadian Electrical Code, which sets guidelines to ensure consistency and safety in electrical installations.

Black is used for phase conductors to indicate live wires that carry current, making it easy for electricians and technicians to identify them in a service panel or during installation. White is designated for neutral conductors, which serve to return the current back to the panel, effectively completing the circuit. Finally, green or bare conductors signify ground wires, which provide a path for electrical current to safely dissipate into the earth in case of faults, ensuring the safety of electrical installations.

By adhering to this established color code, workers in the electrical trade can avoid confusion and ensure that wiring is installed safely and correctly, adhering to the regulations and best practices in Canada. This clarity in color designation helps prevent accidents and improves efficiency in maintenance and troubleshooting tasks.