Which NEC article governs branch circuits and receptacles in dwelling units?

• A. Article 210
• B. Article 310
• C. Article 300
• D. Article 400

Answer: (A)

Branch circuits and receptacles in dwelling units are governed by Article 210 of the NEC. This article specifically addresses how branch circuits are planned and protected, where receptacles must be placed, and the safety requirements that apply to residential outlets, such as AFCI protection in living areas and GFCI protection in wet or damp locations. It also covers overcurrent protection sizing and circuit design considerations tailored to homes, helping ensure that the wiring supports the outlets and devices used in typical residences. The other articles cover different areas: Article 310 deals with conductors and their ampacity, Article 300 with general wiring methods and installation rules, and Article 400 with flexible cords and cables. So for a question about which article governs branch circuits and receptacles in dwellings, the direct reference is Article 210.