Electric cable joints and methods of making them
First Claim
1. An electric cable joint between two cables each having a metallic conductor surrounded by extruded polymeric insulation comprising at least one pin of relatively hard material extending in a generally radial direction through a close-fitting bore in the insulation of each cable and embedded into the metallic conductor within it, contiguous ends of the metallic conductors being aligned and connected together by a conductor joint, screening means extending over the conductor joint and the area of each said pin, and a resilient insulating body shrunk onto the cable insulation to insulate the joint.
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Accused Products
Abstract
An electric cable joint arrangement includes two cables each having a cable end. Each cable has a metallic conductor surrounded by extruded polymeric insulation. Contiguous ends of the conductors are aligned and connected together by a joint, a screen extending over the joint, and a resilient insulating body shrunk onto the insulation to insulate the joint arrangement. At least one pin extends through a close-fitting bore in the insulation of each cable end and is embedded into the conductor. The screen extends over each pin. An associated method includes exposing insulation, forming at least one bore through the insulation, driving a pin through each bore until the pin is embedded into the conductor, aligning and connecting together ends of the metallic conductors, and providing a screen extending over a conductor joint and an area of each of the pin and a resilient insulating body shrunk onto the cable insulation.
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Citations
31 Claims
- 1. An electric cable joint between two cables each having a metallic conductor surrounded by extruded polymeric insulation comprising at least one pin of relatively hard material extending in a generally radial direction through a close-fitting bore in the insulation of each cable and embedded into the metallic conductor within it, contiguous ends of the metallic conductors being aligned and connected together by a conductor joint, screening means extending over the conductor joint and the area of each said pin, and a resilient insulating body shrunk onto the cable insulation to insulate the joint.
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18. An electric cable joint substantially as described with reference to FIG. 1.
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19. An electric cable joint substantially as described with reference to FIG. 2.
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20. A method of making an electric cable joint between two cables each having a metallic conductor surrounded by extruded polymeric insulation comprising cutting back the cable ends to expose the insulation;
- forming at least one bore extending in a generally radial direction through the insulation of each cable and driving a close-fitting pin through each such bore until it is embedded into the metallic conductor within it, aligning and connecting together contiguous ends of the metallic conductors, and providing screening means extending over the conductor joint and the area of each said pin and a resilient insulating body shrunk onto the cable insulation to insulate the joint.
- View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A method of making an electric cable joint substantially as described with reference to FIG. 1.
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31. A method of making an electric cable joint substantially as described with reference to FIG. 2.
Specification