Safety disconnect switch for suspended cables

Details Safety disconnect switch for suspended cables Safety disconnect switch for suspended cables

1978-10-02

1980-03-25

Askin, Laramie E.

Electricity: conductors and insulators

Overhead

Ground clamps and cable clips

200 79, 248 64, H02G 718

Patent

active

041951921

ABSTRACT:
A safety disconnect switch for mounting on a utility pole to serve as an anchor at one end of a suspended service entrance cable extending to a remote building, so as to first disconnect the cable and then drop it harmlessly to the ground upon an excessive tension force being applied to the cable by a falling tree or the like. This device includes a movable terminal clamping means or slider that joins the termial ends of the wires of the suspended cable to the bus bars of the incoming power supply lead wires. A detent switch mechanism or means holds the movable terminal clamping means in either a first fixed position or a second cable-released position. The detent switch means also includes a locking means and a trigger means to open the locking means upon a predetermined tension force being exerted on the suspended cable.

REFERENCES:
patent: 470382 (1892-03-01), Kerstein
patent: 3519727 (1970-07-01), Rasmussen et al.
patent: 3711049 (1973-01-01), Grannis
patent: 3761865 (1973-09-01), Bomgaars et al.

Affiliated with

Also associated with

Rating

Safety disconnect switch for suspended cables does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Safety disconnect switch for suspended cables, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Safety disconnect switch for suspended cables will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1402669