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US 4,381,424 AGranted
Multi-core cable connection for medium voltage cable
AssigneeMinnesota Mining and Manufacturing Company
InventorsHarold C. Hervig, Dieter Kehr, Raymond Krabs
Life of this patent
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Abstract
A multi-core cable connection for medium voltage cables in which each core connection includes a pair of prefabricated permanently elastic stress control elements, each of which has a sleeve-like main body of insulating material and a conductive sleeve-like insert in the body, extending out of one end thereof and bridging the core insulation and the conductor connector.
Claims8
A multi-core cable connection for medium voltage cables, comprising:
- a conductor connector providing a core connection for each cable core, and
- a stress control envelope surrounding each core connection and extending a distance along the core insulation and lying in close contact with it, each stress control envelope including
- two prefabricated permanently elastic stress control elements, each of the stress control elements comprising
- a sleeve-like main body of permanently elastic insulating material which extends a distance on the core insulation and terminates there with a gradually decreasing diameter and towards its end adjacent the conductor connector extends a distance over the conductor connector and terminates there with a gradually decreasing diameter, and
- a permanently elastic, conductive, sleeve-like insert in the main body and bridging the core insulation and the conductor connector;
- and
- an electrically insulating filling material bridging the ends of the stress control elements on the conductor connector.
4 more elements
Dependencies are inferred from the claim text.