Electrician Red Seal · Question
A residential garage is to be wired with a 15 A, 120 V duplex receptacle. According to the Canadian Electrical Code (CEC), what is the minimum acceptable wire size for the branch circuit conductors if the circuit length is 20 metres (65 feet) and the conductors are copper, rated for 75°C (167°F)?
For a 15 A circuit, 14 AWG copper wire is the minimum size permitted by CEC Rule 14-600. Even with a 20-metre (65-foot) run, voltage drop for a 15 A load on 14
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Question: A residential garage is to be wired with a 15 A, 120 V duplex receptacle. According to the Canadian Electrical Code (CEC), what is the minimum acceptable wire size for the branch circuit conductors if the circuit length is 20 metres (65 feet) and the conductors are copper, rated for 75°C (167°F)?
Answer options: ✅ 14 AWG
- 12 AWG
- 10 AWG
- 8 AWG
Correct answer: 14 AWG
Explanation: For a 15 A circuit, 14 AWG copper wire is the minimum size permitted by CEC Rule 14-600. Even with a 20-metre (65-foot) run, voltage drop for a 15 A load on 14 AWG conductor would typically be within acceptable limits for a general-purpose receptacle.
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