Which NEC article covers service conductors and service equipment?

• A. Article 215
• B. Article 230
• C. Article 220
• D. Article 300

Answer: (B)

Service conductors and service equipment are governed by the section that handles the service entrance—the wires from the utility and the main disconnects and equipment that control that power entering the building. This part of the NEC sets how the service conductors are installed, how the service disconnects are rated and located, and how the service equipment is protected and arranged. That focus makes it the best match for questions about service entrances. Other parts deal with downstream distribution (branch circuits and feeders), load calculations, or general wiring methods, which don’t address the service entrance components themselves.