Patent · US Active

Electric power cable and a process for the production of the power cable

US10679772B2 · kind B2 · utility

0Cited by

6References

9Claims

0Family size

Assignee

NKT HV Cables AB · SE

Inventors

Hossein Ghorbani · Malmö, SE
Peter Sunnegårdh · Kallinge, SE
Birgitta Källstrand · Västerås, SE
Carl-Olof Olsson · Västerås, SE
Ulf Nilsson · Stenungsund, SE
Per-Ola Hagstrand · Stenungsund, SE
Villgot Englund · Göteborg, SE
Emy Silfverberg · Lerum, SE
Niklas Thorn · Stenungsund, SE

Key dates

Filing date	Jun 23, 2015
Grant date	Jun 9, 2020
Priority date	—
Expiry date	Jun 23, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02A30/14
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electric power cable and a process for the production of the cable including a metal conductor and an electric insulation system surrounding the conductor coaxially and radially outwards of the conductor having improved electric properties. The insulation system includes an inner semi-conducting layer surrounded radially outwards by an insulation layer and wherein the insulation layer is surrounded radially outwards by an outer semi-conducting layer. The electric power cable further includes an inner water blocking material arranged in the conductor and/or to surround the conductor radially outwards and an outer water blocking material arranged radially outwards from the insulation system. An inner barrier layer is arranged as a diffusion hindering layer between the inner water blocking material and the insulation system and an outer barrier layer is arranged as a diffusion hindering layer between the insulation system and the outer water blocking material.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.