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公开(公告)号：EP4231317A1
公开(公告)日：2023-08-23
申请号：EP22157502.0
申请日：2022-02-18
申请人： NKT HV Cables AB
发明人： LÅNGSTRÖM, Sonny , JOHANSSON, Tommy , JÄDERBERG, Johan , SANDELL, Håkan , DAHL RYDE, Christoffer
摘要： A power cable (1) comprising: a power core (3a) including: a conductor (5), an insulation system 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), a first metallic water blocking layer (15) arranged concentrically with and around the outer semiconducting layer (13), a semiconducting polymer layer (19) arranged concentrically with and around the first metallic water blocking layer (15), and a second metallic water blocking layer (21) arranged concentrically with and around the semiconducting polymer layer (19); and an outer sheath (25) arranged around the second metallic water blocking layer (21).
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公开(公告)号：EP4297209A1
公开(公告)日：2023-12-27
申请号：EP22180428.9
申请日：2022-06-22
申请人： NKT HV Cables AB
摘要： A method is disclosed for connecting a first and a second conductor for use in a prefabricated cable accessory. The method comprises electrically connecting the first and second conductors by welding them together and filling a space between an outer surface of the welded conductor and an outer surface of a cable insulation of the first and second conductors by arranging a metal sleeve therebetween.
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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
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.
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公开(公告)号：EP4293846A1
公开(公告)日：2023-12-20
申请号：EP22178751.8
申请日：2022-06-13
申请人： NKT HV Cables AB
IPC分类号： H02G15/105 , H02G15/04 , H02G1/14 , H02G15/013 , H02G15/18
摘要： The invention is concerned with a cable end sealing arrangement for a first cable (22) and a method for connecting a metallic sheath of a first cable end of a first cable to a metallic casing of a cable end sealing arrangement. The cable end sealing arrangement (28) comprises a metallic casing (32, 34), a cable entrance (EN) and a first cable end of the first cable inserted into the cable entrance (EN), the cable end comprising layers of cable material (18, 20) including a metallic sheath (18), wherein in an entry section (ESi) of the metallic casing (32, 34), an end of the metallic sheath (18) is separated from the other layers of the first cable material and is in pressurized contact with the metallic casing (32, 34) in an area of overlap between the casing (32, 34) and the metallic sheath (18).
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