Electrician Red Seal · Question
When installing non-metallic sheathed cable (NMSC), commonly known as Romex, what is the maximum spacing for staples or straps when securing the cable to a wooden stud?
CEC Rule 12-510(2) states that NMSC shall be secured by staples or straps at intervals not exceeding 900 mm and within 300 mm of every box or fitting.
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Question: When installing non-metallic sheathed cable (NMSC), commonly known as Romex, what is the maximum spacing for staples or straps when securing the cable to a wooden stud?
Answer options:
- 300 mm (12 inches)
- 600 mm (24 inches) ✅ 900 mm (36 inches)
- 1500 mm (60 inches)
Correct answer: 900 mm (36 inches)
Explanation: CEC Rule 12-510(2) states that NMSC shall be secured by staples or straps at intervals not exceeding 900 mm and within 300 mm of every box or fitting.
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