Electrician Red Seal · Question
A construction electrician is running flexible conduit (Liquid-Tight Flexible Metal Conduit - LFMC) to a motor in a wet location. The conduit run includes several bends and is exposed to potential physical damage. What is the minimum bending radius allowed for LFMC with a nominal trade size of 21 mm (3/4 in.) when field-fabricated?
CEC Rule 12-1300(4) and Table 21 specifies the minimum bending radius for flexible conduit. For an LFMC with a nominal trade size of 21 mm (3/4 in.), the minimu
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Question: A construction electrician is running flexible conduit (Liquid-Tight Flexible Metal Conduit - LFMC) to a motor in a wet location. The conduit run includes several bends and is exposed to potential physical damage. What is the minimum bending radius allowed for LFMC with a nominal trade size of 21 mm (3/4 in.) when field-fabricated?
Answer options:
- 100 mm (4 in.)
- 125 mm (5 in.) ✅ 150 mm (6 in.)
- 175 mm (7 in.)
Correct answer: 150 mm (6 in.)
Explanation: CEC Rule 12-1300(4) and Table 21 specifies the minimum bending radius for flexible conduit. For an LFMC with a nominal trade size of 21 mm (3/4 in.), the minimum bending radius when field-fabricated is 150 mm (6 in.).
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