Electrician Red Seal · Question
A homeowner, an experienced DIY enthusiast, wants to install a new receptacle in their attached garage for a workbench. The existing garage circuit is 15 A, 120 V, and powers garage lighting and one existing general-use receptacle. They plan to use a portable table saw (13 A rated) and a portable vacuum (8 A rated) simultaneously. What is the maximum continuous load permitted on a 15 A branch circuit per the CEC?
For a continuous load on a 15 A branch circuit, the maximum permitted load is 80% of the overcurrent device rating. Therefore, 0.80 * 15 A = 12 A. Operating a t
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Question: A homeowner, an experienced DIY enthusiast, wants to install a new receptacle in their attached garage for a workbench. The existing garage circuit is 15 A, 120 V, and powers garage lighting and one existing general-use receptacle. They plan to use a portable table saw (13 A rated) and a portable vacuum (8 A rated) simultaneously. What is the maximum continuous load permitted on a 15 A branch circuit per the CEC?
Answer options: ✅ 12 A
- 15 A
- 13 A
- 10 A
Correct answer: 12 A
Explanation: For a continuous load on a 15 A branch circuit, the maximum permitted load is 80% of the overcurrent device rating. Therefore, 0.80 * 15 A = 12 A. Operating a table saw and vacuum simultaneously would exceed this limit, potentially tripping the breaker.
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