H - Electricity – 01 – R
Patent
H - Electricity
01
R
H01R 13/713 (2006.01) H01H 83/02 (2006.01) H01R 13/66 (2006.01)
Patent
CA 2510142
In the present invention the basic detection and interruption components of a Leakage Current Detector Interrupter (LCDI) in combination with a sensor module are coupled to a conductor such as a shield conductor of an extension or appliance cord having line, neutral, possibly ground and shield conductors to provide a new improved type of detector which interrupts current to a load when an abnormal non-electrical condition such as smoke, high heat, high or low pressure, etc. is detected by the sensor module. The sensor module in combination with the LCDI provides, either singularly or in combination, the following advantages: A sensor module that need not be rated to carry the full electrical load required by the appliance because the LCDI can operate with a nominal low current signal; Prevents the LCDI from being reset should the device become inoperative (reset lockout); Tests the integrity of the conductor from the sensor module within the extension or appliance cord, in addition to testing the functionality of the LCDI; and, Can interrupt current to the load if an electrical connection is detected between the sensor module conductor and neutral, or the sensor module conductor and ground.
Leviton Manufacturing Co. Inc.
Ridout & Maybee Llp
LandOfFree
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