Which of the following circuits must have AFCI protection mandated by electrical codes?

AFCI, which stands for Arc Fault Circuit Interrupter, protection is mandated by electrical codes specifically for circuits in certain areas of a home to enhance safety and reduce the risk of electrical fires. Living room circuits require AFCI protection because these areas often contain various electrical devices, including entertainment systems and lighting, which can be sources of arc faults.

Arc faults can occur due to damaged wiring, loose connections, or incompatible devices, and AFCIs are designed to detect these issues and disconnect the circuit before a fire can start. By requiring AFCI protection in living rooms, the codes aim to minimize hazards associated with common household activities and electrical use in these spaces.

Other areas mentioned, like bathrooms, kitchens, and laundry circuits, have different specific requirements or may be more focused on GFCI (Ground Fault Circuit Interrupter) protection due to their unique risks associated with water exposure rather than arc faults. Therefore, the requirement for AFCI protection specifically highlights the concern for fire safety in areas with a higher likelihood of having multiple devices or older wiring.