Moisture proof electrical cable
AssigneeKabel-und Metallwerke Gutehoffnungshutte Aktiengesellschaft
InventorPeter Madry
Life of this patent
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Abstract
An insulated cable core is provided with a shield made of individual wires which are embedded in a first plastically deformable jacket which carries a water vapor impermeable sleeve made of wrapped or folded metal or metallized foil or ribbon whose adjoining edges are sealed. This sleeve carries a second plastically deformable jacket to be embedded in-between two such jackets. The usual protective covering is provided around the outer deformable jacket.
Claims7
Electrical cable for medium and high voltages, and including a conductor core with insulating jacket covered by an electrically conductive layer, further comprising:
- a shield made of metallic, elongated elements such as ribbons or wires on the said layer;
- a first plastically deformable jacket on the layer and sealingly embedding said ribbons or wires of said shield;
- a water-vapor-impermeable sleeve on the first jacket and being comprised of a helically coiled metal or metallized ribbon having adjoining edges sealingly interconnected, the sleeve being sealed by the first jacket;
- a second, plastically deformable, water-proofing jacket on the sleeve and sealing the sleeve from its outside, the sleeve being sealingly embedded by and in between the first and second jackets;
- and
- protective cover means on the second jacket.
Dependencies are inferred from the claim text.