Fault indicator operable from a remote excitation source through

Details Fault indicator operable from a remote excitation source through Fault indicator operable from a remote excitation source through

1978-10-10

1981-09-08

Strecker, Gerard R.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With coupling means

324 51, 324133, 338214, 361 58, G01R 19165, G01R 3102, H02H 900, H01C 700

Patent

active

042887437

ABSTRACT:
A fault indicator for indicating the occurrence of a fault current in an electrical conductor includes a reset circuit operable from an external electrical excitation source. The external source is connected to the reset circuit by a cable formed from a flexible electrically insulating tubing segment within the lumen of which an electrically conductive coating is disposed. The resulting high impedance electrical interconnection reduces the danger of electrical shock from inadvertant contact with the cable or the fault indicator circuitry, and precludes the source from being adversely affected should the cable become shorted to ground.

REFERENCES:
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patent: 2790053 (1957-04-01), Peterson
patent: 3166688 (1965-01-01), Rowand et al.
patent: 3367851 (1968-02-01), Filreis et al.
patent: 3448323 (1969-06-01), Owens
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patent: 3676740 (1972-07-01), Schweitzer
patent: 3680071 (1972-07-01), Burgoon
patent: 3742247 (1973-06-01), Sunstein
patent: 3863145 (1975-01-01), Kelly et al.
patent: 3906477 (1975-09-01), Schweitzer
patent: 3970932 (1976-07-01), Harvey
patent: 4086529 (1978-04-01), Schweitzer

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