Code Q&A: Vertical Clearance Requirements for Overhead Conductors

Code Q&A: Vertical Clearance Requirements for Overhead Conductors

NEC rules on the neutral conductor as the circuit equipment grounding conductor?

Q. When installing outside branch circuits and feeders, what is the minimum vertical clearance required for overhead conductors?

Find the Answer

Overhead conductor spans must maintain vertical clearances as follows [225.18]:

  • 10 ft above finished grade, sidewalks, platforms, or projections from which they might be accessible to pedestrians for 120V, 120/208V, 120/240V, or 240V circuits (Figure).

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