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US 2022/0115165 A1Published application
Multi-layer radial water barrier for rapid manufacture
AssigneeNexans
InventorsAudun JOHANSON, Robin SANGAR
Life of this patent
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Abstract
A power cable has a cable core comprising at least one conductor with an insulating system and a water barrier surrounding the cable core. The water barrier comprises a helically wound strength bearing layer interconnected by a low melting point material.
Claims16
A power cable comprising:
- a cable core comprising at least one conductor with an insulating system
- a water barrier surrounding the cable core,
- wherein the water barrier comprises a helically wound strength bearing layer interconnected by a material with a lower melting point than the strength bearing layer.
A method for providing a cable core with a multilayered barrier, comprising the steps of:
- a) applying a multilayered tape with overlapping regions to the cable core by helically winding said tape around said cable core,
- wherein the multilayered tape comprises at least one layer of a low-melting point material and a strength bearing layer
- b) heating the winded multilayered tape to a temperature above the melting point of the low-melting point material and below the melting point of the strength bearing layer of the tape for a period of time sufficient to melt the low melting layer(s) of the tape.
Dependencies are inferred from the claim text.