Ground fault interrupter with reversed line polarity lamp indica

Details Ground fault interrupter with reversed line polarity lamp indica Ground fault interrupter with reversed line polarity lamp indica

1972-02-22

1976-01-13

Miller, J. D.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

324133, 340253R, H02H 102, G08B 2100

Patent

active

039327906

ABSTRACT:
A ground fault interrupter (GFI) provided with a reversed line polarity lamp indicator to indicate proper installation of the GFI. The reversed line polarity lamp indicator includes a push button and a lamp connected in series between the line conductor of the GFI and ground. In a wiring system having a ground conductor, the series connection is between the line and the ground conductor in which case the reversed line polarity lamp indicator may also be used to check for open circuits in the ground conductor.

REFERENCES:
patent: 3313960 (1967-04-01), Borys
patent: 3548259 (1970-12-01), McDonald

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