Patent ID: 6407893
Filing Date: 2002-06-18
Classification: G01R,H02H

Abstract:
An arc fault detector capable of being electrically connected to an electrical wiring system having a source of electric power comprising:indicating means for providing an indicia representing the presence of at least one arc fault condition in the electrical wiring system: trigger means, responsive to a trigger signal received after activation of the trigger means, for causing said indicating means to provide the indicia; means for activating said trigger means for a predetermined period of time when a voltage of the source of electrical power is below a predetermined value; and first arc fault detecting means for detecting a line impedance associated with the electrical wiring system after said activating means activates said trigger means, and for generating a line impedance signal when said detected line impedance is greater than a predetermined value with the line impedance signal being output as the trigger signal to the trigger means.