Ground conductor monitoring system

Electricity: electrical systems and devices – Safety and protection of systems and devices – Ground fault protection

Patent

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Details

361113, 340649, 340652, 324 51, H02H 510

Patent

active

043684980

ABSTRACT:
Disclosed is a ground conductor monitoring system which makes efficient use of an audio signal to continuously check the continuity of at least the ground conductor of a cable system.

REFERENCES:
patent: 2880377 (1959-03-01), Buckingham et al.
patent: 3387064 (1968-06-01), Joy et al.
patent: 3746929 (1973-07-01), Kotheimer
patent: 3783340 (1974-01-01), Becker
patent: 3825915 (1974-07-01), Dow
patent: 3840782 (1974-10-01), Monaghan
patent: 4016429 (1977-04-01), Vercellotti et al.
patent: 4075675 (1978-02-01), Burkett et al.
patent: 4142143 (1979-02-01), Daniel
patent: 4153923 (1979-05-01), Graf

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