AFCI protection is required for branch circuits supplying 120-volt single-phase 15- and 20-amp loads in which location?

• A. Living room outlets
• B. Sunroom lighting outlets
• C. Outdoor receptacles
• D. Kitchen counter outlets

Answer: (B)

AFCI protection is required for branch circuits that feed outlets in living areas of a dwelling. The sunroom is considered a living area, so any 120-volt single-phase 15- or 20-amp circuit that supplies outlets there must have AFCI protection. This protection helps detect arc faults that could start fires, providing a safer electrical system for spaces people frequently use. Outdoor receptacles are typically governed by GFCI protection for moisture hazards, and kitchen countertop outlets have their own AFCI/GFCI requirements, but the example that best matches the code’s living-area rule is sunroom lighting outlets, since the sunroom is categorized as a living area where outlets must be AFCI-protected.