In the blink of an eye, a loose connection, frayed cord, or damaged appliance can turn a useful allies into a deadly adversary. Each year, home electrical problems result in an estimated 53,600 fires. These fires cause more than 500 deaths, 1,400 injuries, and $1.4 billion in property damage. Additionally, hundreds of people in the U.S. are electrocuted at home. Many of these electrocutions and home electrical fires could be prevented with electrical safety devices called fault circuit interrupters.
Arc-Fault Circuit Interrupters (AFCIs) 

According to the National Fire Protection Association, electrical arcing is the source of ignition in more than 30,000 fires each year. Arc faults occur when electricity escapes from home wiring, cords, or appliances via damage or improper installation.

Arc fault circuit interrupters (AFCIs) are new safety devices that replace standard circuit breakers in your electrical service panel. AFCIs detect arc faults and quickly cut power to the circuit. They provide a higher level of protection than a standard circuit breaker by detecting the fault and tripping before the arc becomes a fire hazard.