Arc Fault Circuit Protection

According to the U.S. Fire Administration, during a typical year, an estimated 248,500 one- and two-family residential building fires are reported to U.S. fire departments and cause an estimated 2,135 deaths, 8,550 injuries, and $5.9 billion in property loss. Many of the fires attributed to “faulty wiring” are caused by arc faults that standard circuit breakers and fuses cannot detect.

Other possible Arcing Faults:

  • Damaged wires.
  • Worn electrical insulation.
  • Cables improperly nailed or stapled.
  • Cords in contact with vibrating metal.
  • Cord deteriorated by heat.
  • Cracked or stressed electrical cords.
  • Misapplied or damaged appliances.
To learn more, watch the "Fire risks behind the walls" video.

Where Do Arc Faults Occur?



During Construction. 

During new construc-
tion or remodeling a
wire can be pinched,
punctured by a nail, or
stapled too tightly
against a wood stud.

Behind the Walls.

The nail from a
picture hanger or
flooring can actually
puncture insulation.


Loose Connection.

A wall plug or switch
can cause an electrical
fault if not properly
installed, or if the
connections have
become loose.


Damaged Cords

Insulation can be
damaged when furniture
is pushed up against
a cord or it becomes
caught and pinched in
a door.