Question 2063 of 931 · Texas Journeyman Electrician Exam
In general, what minimum vertical clearance must overhead service conductors maintain above a flat roof that is walked on?
Exactly one answer is correct.
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Correct answer to question 2063
- B: 8 ft 6 in.
Explanation
The general rule calls for 8 ft 6 in. above the roof surface, maintained for at least 3 ft in all directions from the roof edge. Reduced values in the exceptions apply only to sloped roofs, overhangs and roofs not subject to pedestrian traffic. See 230.24(A).
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