A residential service entrance conductor must maintain a minimum clearance above a public sidewalk or walkway of:

A residential service entrance conductor

Multiple choice — select the best answer

A8 feet
B10 feet
C12 feet
D15 feet

✓ Correct answer: B. 10 feet NEC 230.24(B) requires service conductors to maintain at least 10 feet of clearance above walkways accessible only to pedestrians, ensuring pedestrian safety beneath the wires.

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Topic: Electrical Systems

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