Electrician Red Seal · Question
During a rough-in inspection for a new commercial kitchen, the inspector notes that several flexible metal conduits (FMC) connecting to motors are unsupported for a run of 1.2 m (4 ft.). The motors are fixed in place. What is the maximum unsupported length permitted for FMC by the CEC in this scenario?
CEC Rule 12-1014(1) states that flexible metal conduit shall be securely supported within 300 mm (1 ft.) of every box, cabinet, or fitting, and at intervals not
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Question: During a rough-in inspection for a new commercial kitchen, the inspector notes that several flexible metal conduits (FMC) connecting to motors are unsupported for a run of 1.2 m (4 ft.). The motors are fixed in place. What is the maximum unsupported length permitted for FMC by the CEC in this scenario?
Answer options: ✅ 0.6 m (2 ft.)
- 0.9 m (3 ft.)
- 1.2 m (4 ft.)
- Any length, as long as it's not subject to physical damage.
Correct answer: 0.6 m (2 ft.)
Explanation: CEC Rule 12-1014(1) states that flexible metal conduit shall be securely supported within 300 mm (1 ft.) of every box, cabinet, or fitting, and at intervals not exceeding 1.5 m (5 ft.). However, Rule 12-1014(3) allows for an unsupported length not exceeding 600 mm (2 ft.) to permit flexibility. Therefore, 1.2 m (4 ft.) is excessive.
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