Branch Circuits & WiringQuestion 137 of 521
After the required fastening near boxes, EMT must be supported at intervals not exceeding what distance?
a.8 ft
b.10 ft
c.12 ft
d.6 ft
Explanation
Section 358.30(A) requires EMT to be supported at least every 10 ft along the run. Combined with fastening within 3 ft of boxes, this keeps the raceway secure. 8 and 6 ft are stricter than required, and 12 ft exceeds the maximum support spacing.
Law Reference: 2023 NEC §358.30(A)Practice all 521 questions free — no signup required.
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