Wiring Methods & MaterialsQuestion 80 of 120
Direct-buried conductors emerging from grade must be protected by an approved enclosure or raceway from below grade to what height?
a.8 feet above finished grade
b.6 feet above finished grade
c.10 feet above finished grade
d.4 feet above finished grade
Explanation
Protection must extend from below grade to at least 8 feet above finished grade, and the underground portion must reach at least 18 inches below grade. Six feet leaves the conductors within easy reach of damage, and neither 4 nor 10 feet is the code value.
Law Reference: 2023 NEC §300.5(D)(1)Practice all 120 questions free — no signup required.
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