公开(公告)号：EP4270420A1

公开(公告)日：2023-11-01

申请号：EP22170841.5

申请日：2022-04-29

申请人： NKT HV Cables AB

发明人： DAHL RYDE, Christoffer ,  SANDELL, Håkan ,  TYRBERG, Andreas ,  PERSBERG, Andreas ,  LÅNGSTRÖM, Sonny ,  JOHANSSON, Tommy ,  POURRAHIMI, Amir

IPC分类号： H01B7/282 ,  H01B9/00

摘要： A power cable (1) comprising: a conductor (5), an insulation system (7) comprising an inner semiconducting layer (9) arranged around the conductor (5), an insulation layer (11) arranged around the inner semiconducting layer (9), and an outer semiconducting layer (13) arranged around the insulation layer (11), an elastic mechanical support layer (15) arranged around the outer semiconducting layer (13), a metallic water blocking layer (17) having a longitudinal weld seam (17a), the metallic water blocking layer (17) being arranged around the mechanical support layer (15), wherein the mechanical support layer (15) is permanently thermally expanded radially as a result of a heat treatment process, thereby mechanically supporting the metallic water blocking layer (17).