The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 10, 2026

Filed:

Dec. 05, 2023
Applicant:

Nkt Hv Cables Ab, Lyckeby, SE;

Inventors:

Andreas Mattsson, Karlskrona, SE;

Johan Jäderberg, Lyckeby, SE;

Joakim Wikström, Karlskrona, SE;

Johnny Ericsson, Rödeby, SE;

Pontus Danielsson, Lyckeby, SE;

Assignee:

NKT HV Cables AB, Lyckeby, SE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B 7/28 (2006.01); H01B 7/14 (2006.01); H01B 7/282 (2006.01); H01B 9/04 (2006.01);
U.S. Cl.
CPC ...
H01B 7/2825 (2013.01); H01B 7/14 (2013.01); H01B 9/04 (2013.01);
Abstract

A power cable includes from inside to outside: a conductor; an insulation system having an inner semiconducting layer, an insulation layer, and an outer semiconducting layer; a metallic water blocking layer including a first axial section, a second axial section, and an intermediate axial section arranged between the first axial section and the second axial section and made of a lead-free metal material which is different from a first metal material of at least one of the first axial section and the second axial section. The intermediate axial section is joined thermally along its entire inner or outer perimeter with each of the first axial section and the second axial section to obtain watertight connections. The lead-free metal material has a lower yield strength than the first metal material.


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