Wiring device with multi-shot miswire

Details Wiring device with multi-shot miswire Wiring device with multi-shot miswire

2007-11-20

2007-11-20

Sherry, Michael (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Ground fault protection

C324S424000

Reexamination Certificate

active

11237399

ABSTRACT:
The present invention is directed to a protective wiring device that includes a plurality of line terminals coupled to a plurality of load terminals by way of at least one conductive path. A miswire detection circuit is coupled to the at least one conductive path. The miswire detection circuit is configured to monitor signal propagation characteristics on the at least one conductive path and generate a miswire detection signal based on the signal propagation characteristics commencing each time source power is applied to either the plurality of line terminals or the plurality of load terminals. A fault detection circuit is coupled to the at least one conductive path. The fault detection circuit is configured to detect a fault condition propagating on the at least one conductive path. The fault detection circuit is configured to generate a trip signal in response to either the fault condition or the miswire detection signal. A circuit interrupter is coupled to the fault detection circuit. The circuit interrupter is configured to introduce an electrical discontinuity in the at least one conductive path in response to the trip signal.

REFERENCES:
patent: 5706155 (1998-01-01), Neiger et al.
patent: 6040967 (2000-03-01), DiSalvo
patent: 6522510 (2003-02-01), Finlay et al.
patent: 6628486 (2003-09-01), Macbeth
patent: 6795285 (2004-09-01), Jozwiak et al.

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