Electrical safety drop disconnect

Details Electrical safety drop disconnect Electrical safety drop disconnect

1985-07-02

1987-10-06

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

307119, 361114, 439369, 439371, 439449, H02H 726

Patent

active

046987177

ABSTRACT:
An electrical safety disconnect device inserted in overhead power wires to prevent live broken wires from contacting the ground or persons in their vicinity. The device takes the form of a male-female plug combination that automatically separates when the wire experiences a predetermined force generally less than that required to break the wire itself. A band encircles both the male and female components to hold them together and maintain the electrical connection. This band breaks when a predetermined stress pulls on the wires to allow the male and female portions to separate. The device sits on the wire near to the pole closer to the source of electricity. Upon separating, as in a storm for example, the "live" end of the wire hangs above the ground where it cannot contact people or other objects. Placing the female component on this portion of the wire provides additional protection to the environs.

REFERENCES:
patent: 3111355 (1963-11-01), Samburoff et al.
patent: 3345604 (1967-10-01), Henschen et al.
patent: 4332432 (1982-06-01), Colleran

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