Patent ID: 6980005
Filing Date: 2005-12-27
Classification: G01R,H02H

Abstract:
1. An electrical wiring protection device for use in coupling AC power through an AC power distribution system to at least one electrical load, the device comprising: an automated self-test circuit coupled to the AC power distribution system and configured to generate at least one simulated fault signal during a first predetermined half-cycle polarity of AC power; a detector circuit coupled to the automated self-test circuit, the detector circuit generating a detection signal in response to the at least one simulated fault signal; and an interval timing circuit coupled to the automated self-test circuit, the interval timing circuit being configured to enable the automated self-test circuit to generate the at least one simulated fault signal during a first predetermined interval and not enable the automated self-test circuit during a subsequent second predetermined interval, the first predetermined interval and the second predetermined interval being recurring time intervals.