Question 6006 of 749 · Maryland Journeyperson Electrician Exam
What is the minimum cover for any wiring method installed under a public street, highway, alley, or commercial parking lot?
Exactly one answer is correct.
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Correct answer to question 6006
- B: 24 in
Explanation
Under streets, highways, roads, alleys, driveways, and parking lots, the minimum cover is 24 in for all wiring methods. See Table 300.5 in NEC 2020 and 2023; the underground installation rules are in 300.7 in NEC 2026.
More questions: Wiring Methods, Conductors and Boxes
- 6007Direct buried conductors emerging from grade must be protected by enclosures or raceways to what height above finished grade?
- 6008Under NEC 2020 and 2023, where must a warning ribbon be placed for direct buried service conductors that are 18 in or more below grade and not encased in concrete?
- 6010What does the Code require for backfill around underground cables and raceways?
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- 6013NM cable passes through holes in metal studs that are punched at the factory. What must be done?
- 6014A cable run parallel to a wood framing member must be kept at least how far from the nearest edge of the member where nails or screws are likely to penetrate?