The UL and CPSC concluded, in 1995, that circuit breakers able to trip when they detect either an arc or ground fault are very promising in protecting against electrical fires. Subsequent development and testing by Eaton....Cutler-Hammer research engineers and others have clearly verified that conclusion, and, as a consequence, all of todays AFCI circuit breakers, available from four manufacturers, protect against both arc and ground faults.
Ground fault protection is a hidden benefit; it is not required today by UL1699, the AFCI Standard. Nevertheless, Eaton....Cutler-Hammer has chosen to dual-list its breakers to UL1699 and either UL1053, Ground-Fault Sensing or Relaying Equipment; or UL943, Ground-Fault Circuit Interrupter. This paper examines the process by which such Dual-Listed breakers protect against the eleven recognized types of electrical wiring faults.
(HEAD) BACKGROUND: A STUDY IS THE FOUNDATION FOR SAFER RESIDENCES ...
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