What is a arc fault breaker?

Answer 1

All circuit breakers are designed to extinguish the arc created when the circuit breaker interrupts an electrical fault current. High-voltage circuits breakers use various techniques such as stretching and cooling the arc, and replacing the arc's path with a dielectric to prevent it from restriking.

Answer 2

As of 2013 the NEC code specifies that a Arc Fault Breakers be installed in all living areas. Bedrooms, Hallways, Closets, Dens, Family Rooms, Dining Rooms, Parlors, Libraries, Recreation Rooms, etc. Smoke alarms also must be AFCI protected. The 2014 Code is more than likely going to include kitchens, and laundry rooms. The reason for AFCI is that arcs from loose wiring is the most common cause of fires in a home. The AFCI will trip when it detects an arc thus preventing overheating of the wires and a fire.

Answer 3

It senses unusual high current flow in an electrical circuit, such as when a device cord shorts out.

Answer 4

The NEC codes states that all living areas must be protected with an Arc Fault Breaker. If you want to pass inspection then install them.

Answer 5

In the CEC an arc fault breaker must be used on branch circuits that supply receptacles installed in sleeping facilities of a dwelling unit.