1 definition by kawaresksenjajok

AFI

Arc Fault Interrupter, a type of electrical protection device that senses an arc between live conductors and ground, and will interrupt the cicuit to prevent a fire. Arcs can be caused by drilling/cutting/nailing into a wire within a wall. Similar to a GFI, Ground Fault Interrupter.

I'm sure glad we installed that AFI, it kept the house from burning down.

by kawaresksenjajok October 7, 2005