Arc Fault Receptacle Wiring. Designed to detect a wide range of potentially hazardous arc-faults resulting from damage in branch circuit wiring as well as extensions to branches such as appliances and cord sets the OBC AFCI responds by interrupting power. 21012 B Dwelling unit family rooms dining rooms living rooms parlors libraries dens bedrooms sun rooms recreation rooms closets hallways wiring methods require AFCI.
AFCI interrupts power when an arc-fault is detected in the circuit downstream from where the receptacle is installed including within items plugged into it. The ordinary circuit breaker wont sense and operate that quickly during the initial stage of producing arc in the circuit. Wires are often folded jammed into boxes quickly and if the wrong two wires make contact they can trip an AFCI.
It is a safety alert.
Arcing can create high intensity heat which may over time ignite surrounding material such as wood framing or insulation. Pass Seymour Outlet Branch Circuit Arc-Fault Circuit Interrupter AFCI Receptacles and Dual-Function AFCIGFCI Receptacles are the latest innovations in electrical safety technology and a Code-approved cost-effective alternative to AFCI and Dual-Function AFCIGFCI breakers. Wiring the AFCI Arc Fault Circuit Interrupters and Outlets AFCI Circuit and Outlets Greg you can combine the outlets from these two rooms on the same AFCI circuit as long as the outlets will be general purpose where there will not be any large equipment loads plugged into the outlets. What is an arc-fault.