Electrician Red Seal · Question
According to the Canadian Electrical Code (CEC), what is the minimum acceptable clear working space in front of an electrical panel operating at 120/208V, when there are no live parts on the opposite side of the working space?
CEC Rule 2-308(1)(a) specifies a minimum clear working space of 750 mm for equipment operating at 0-150V to ground. While 120/208V is a multi-phase system, the
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Question: According to the Canadian Electrical Code (CEC), what is the minimum acceptable clear working space in front of an electrical panel operating at 120/208V, when there are no live parts on the opposite side of the working space?
Answer options: ✅ 750 mm (30 inches)
- 900 mm (36 inches)
- 1000 mm (39 inches)
- 1200 mm (48 inches)
Correct answer: 750 mm (30 inches)
Explanation: CEC Rule 2-308(1)(a) specifies a minimum clear working space of 750 mm for equipment operating at 0-150V to ground. While 120/208V is a multi-phase system, the voltage to ground from any phase is 120V.
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