Apparatus for joining transmission cables

Metal working – Method of mechanical manufacture – Electrical device making

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Details

29755, 439796, H01R 4300, H01R 1109

Patent

active

053014227

ABSTRACT:
A device for joining sections of solid-dielectric underground cable comprises conductor extension pieces or ferrules respectively attached to the center conductors of each of the cable sections, conductor inserts installed in a cavity of each of the ferrules, and a conductor clamp for clamping the ferrules together in a predetermined longitudinal arrangement. The conductor clamp comprises a pair of semi-cylindrical shell pieces which, when assembled together, form a modified cylindrical structure having a central aperture for receiving the ferrules. Each conductor insert includes a disk-shaped flange plate on its outer end. Fasteners are used to compress the shell pieces toward one another into secure engagement with the ferrules, so that the ferrules, and the center conductors to which they are attached, are retained in a desired predetermined mechanical relationship. The flange plates of the conductor inserts are larger than the central aperture of the assembled clamp so that the flange plates are longitudinally constrained by the walls of the cavity. As a result, the assembly can withstand large forces in tension and compression which may be produced due to thermal expansion and contraction of the cable.

REFERENCES:
patent: 2931009 (1960-03-01), Dutton et al.
patent: 3992569 (1976-11-01), Hankins et al.
patent: 4458976 (1984-07-01), Hudson et al.
patent: 4710593 (1987-12-01), Hall, Jr. et al.

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