Which inspection is required before covering electrical wiring in walls under NC building codes?
Correct Answer
B) Electrical rough-in inspection
NC building codes require an electrical rough-in inspection before electrical wiring can be covered by drywall or other wall coverings.
Why This Is the Correct Answer
NC building codes require an electrical rough-in inspection to be completed and approved before any electrical wiring, boxes, or conduit installed in walls can be covered with drywall or other wall materials. This inspection ensures all wiring meets code before it becomes inaccessible.
Why the Other Options Are Wrong
Option A: Grounding inspection
A grounding inspection is not a separately required inspection that must occur before covering walls. Grounding is verified as part of the rough-in inspection and/or the final electrical inspection.
Option C: Final electrical inspection
A final electrical inspection occurs after all work is complete — including after drywall, devices, fixtures, and the service panel are all installed. It cannot logically occur before covering walls.
Option D: Service panel inspection
A service panel inspection, if performed separately, evaluates the panel itself. It does not satisfy the requirement to inspect rough-in wiring inside walls before they are covered.
Memory Technique
Think of construction phases in order: Frame → Rough-In (inspect!) → Insulation → Drywall → Finish → Final (inspect!). The rough-in inspection is the gate between rough-in and covering the walls. No approval = no drywall.
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