WIRELESS EMERGENCY POWER INTERRUPTING SYSTEM

摘要

47,362 WIRELESS EMERGENCY POWER INTERRUPTING SYSTEM A system for deenergizing an electrical power distribution circuit under emergency conditions. The system comprises a three-wire power circuit including a line conductor, a neutral conductor, and a ground conductor, the circuit being protected by a ground fault circuit breaker operable upon detection of ground fault current in the circuit to disconnect the circuit from the source of electrical power. A plurality of receptacles are included in the circuit downstream from the ground fault circuit breaker to receive connecting plugs of electrical apparatus to be powered from the circuit. A removable plug adapted for insertion into any of the receptacles includes at least three pins, each pin being connected to one of the conductors when the plug is inserted into a receptacle. The series combination of a resistor and a momentary contact pushbutton switch is connected between the pins which come in electrical contact with the line conductor and the ground conductor. Actuation of the pushbutton switch when the plug is inserted into any of the receptacles produces a flow of current from the line conductor to the ground conductor, thereby actuating the ground fault circuit breaker and disconnecting the circuit downstream from the breaker from a source of electrical power.