公开(公告)号：EP4386782A1

公开(公告)日：2024-06-19

申请号：EP22214228.3

申请日：2022-12-16

申请人： NKT HV Cables AB

发明人： MATTSSON, Andreas ,  JÄDERBERG, Johan ,  WIKSTRÖM, Joakim ,  ERICSSON, Johnny ,  DANIELSSON, Pontus

IPC分类号： H01B7/282 ,  H02G1/16 ,  H02G1/14 ,  H01B7/14 ,  H01B7/20

CPC分类号： H01B7/20 ,  H02G1/16 ,  H01B7/14

摘要： A power cable comprising: a conductor, an insulation system comprising an inner semiconducting layer arranged around the conductor, an insulation layer arranged around the inner semiconducting layer, and an outer semiconducting layer arranged around the insulation layer, a metallic water blocking layer (13) arranged around the insulation system (5), comprising a first axial section (13a), a second axial section (13b), and an intermediate axial section (13c) made of a lead-free metal material which is different from a first metal material of at least one of the first axial section (13a) and the second axial section (13b), the intermediate axial section (13c) being arranged between the first axial section (13a) and the second axial section (13b), wherein the intermediate axial section (13c) is joined thermally along its entire inner or outer perimeter with each of the first axial section (13a) and the second axial section (13b) to obtain a watertight connection between the intermediate axial section (13c) and each of the first axial section (13a) and the second axial section (13b), wherein the lead-free metal material has a lower yield strength than the first metal material.