Electrical cable joint structure and method of manufacture

Details Electrical cable joint structure and method of manufacture Electrical cable joint structure and method of manufacture

1981-11-09

1984-12-11

Askin, Laramie E.

Electricity: conductors and insulators

Conduits, cables or conductors

Combined

156 49, 174DIG8, 264515, 432225, H02G 15184

Patent

active

044879946

ABSTRACT:
A multilayer, heat shrinkable composite tube covering is provided for a cable joint structure in which intimately joined layers define a semiconductive inner or conductor shield, an insulation layer, and an outer or insulation shield for the joint. Furthermore, a highly resistive semiconducting layer is provided over the joint under the innermost layer of the composite tube, forming a dual layer conductor shield for the joint. In the preferred embodiment, the entire composite tube is pressure extruded in a common operation and all three layers are simultaneously chemically cured and cooled under pressure to provide the intimately joined layers of the composite tube. Subsequently, when the tube is shrunk over the joint, the three layers shrink as a unit, so that there is no possibility of trapping impurities or gas bubbles between layers.

REFERENCES:
patent: 2716777 (1955-09-01), Hagen
patent: 2936491 (1960-05-01), Hamlin
patent: 3554999 (1971-01-01), Shaw et al.
patent: 4304616 (1981-12-01), Richardson
patent: 4378463 (1983-03-01), Senior et al.

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