| 摘要 |
A ground fault circuit interrupter (GFCI) for use with a power cable which connects a power source to a load. The GFCI includes first and second pairs of terminals which are located at opposite ends of the power cable, the first pair of terminals being designated for connection with the power source and the second pair of terminals being designated for connection with the load. A pair of electrical outlets are connected to the power cable at a location between the first and second pairs of terminals. A first circuit breaker is located in the power cable between the pair of electrical outlets and the second pair of terminals. A ground fault detection circuit detects the presence of a ground fault condition in the power cable and, in turn, generates a trip signal which is used to energize a solenoid that is ganged to the first circuit breaker. In one embodiment, a second circuit breaker is located in the power cable between the first pair of terminals and the pair of electrical outlets, the second circuit breaker being ganged to the first circuit breaker. In this manner, the GFCI provides ground fault protection regardless of whether the power source is connected to the first or second pairs of terminals. In another embodiment, a reverse wiring circuit is provided which generates an artificial ground fault condition when the power source is improperly connected to the second pair of terminals rather than the first pair of terminals.
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