How should a residential electrical system be documented for an inspection?

• A. With complete as-built drawings, panel schedules, load calculations, and compliance notes showing conformity to code and amendments.
• B. With only a single-line diagram.
• C. With verbal summary from the installer.
• D. With photographs of outlets.

Answer: (A)

Thorough, permanent documentation showing exactly what was installed and how it complies with code is what an inspector needs. Complete as-built drawings capture the real layout of wiring, devices, and panels, reflecting actual installations. Panel schedules document each circuit, its breaker size, and the connected load where applicable, making it easy to verify circuiting and sizing. Load calculations demonstrate the service size and how the calculated loads on feeders and branch circuits are met, ensuring the system isn’t overloaded and equipment is properly sized. Compliance notes reference the applicable code edition and amendments, and note any deviations or interpretations used to show conformity. Together, these elements provide a full, auditable record for inspection and future work. A single-line diagram lacks detail about actual wiring paths and circuit interconnections; verbal summaries aren’t a formal record; photographs alone don’t convey circuit-by-circuit loads or code compliance.