Redundant electrical grounding system

Details Redundant electrical grounding system Redundant electrical grounding system

1976-08-30

1977-05-24

Lake, Roy

Geometrical instruments

H01R 306

Patent

active

040251390

ABSTRACT:
A back-up grounding system for electrical appliances is used in hazardous locations. The redundant grounding line cord has two green grounding conductors instead of the usual one. A plurality of redundant grounding plugs and receptacles are provided to provide electrical appliances with two complete and separate grounding circuits.

REFERENCES:
patent: 3072873 (1963-01-01), Traher
patent: 3626354 (1971-12-01), Banner

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