Red Seal Industrial Electrician Practice Exam

Which color code represents hot conductors in Canada?

1. Blue or white

2. Brown, red, or black

3. Green or bare

4. Yellow or orange

The correct answer is: Brown, red, or black

In the context of electrical wiring in Canada, the color coding for conductors is established to ensure safety and consistency across installations. Hot conductors, which carry current from the power source to the load, are designated by specific colors that help electricians easily identify their function within a circuit. The colors brown, red, and black are used to indicate hot conductors in Canada. Brown is commonly found in single-phase systems, while red may be used in three-phase systems, along with black, which is typically used for general hot conductors. This standardization is crucial for safe electrical practices because it helps to prevent accidental contact with live wires, promoting safe operation and installation. The other color codes mentioned in the options refer to different functions. For instance, green or bare indicates grounding conductors, which serve the important purpose of safety by providing a pathway for fault currents. Blue or white is typically used for neutral conductors, while yellow or orange is often reserved for specific applications, such as second hot conductors in 240V circuits. Understanding these color codes is essential for all electricians to work safely and effectively in compliance with Canadian electrical regulations.