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221 条记录 (耗时 0.021 秒)

    FLEXIBLE DIRECT-CURRENT SUBMARINE CABLE
    4.
    发明公开
    FLEXIBLE DIRECT-CURRENT SUBMARINE CABLE 审中-公开

    公开(公告)号：EP4207217A1

    公开(公告)日：2023-07-05

    申请号：EP22819118.5

    申请日：2022-03-08

    申请人： Zhongtian Technology Submarine Cable Co., Ltd.

    发明人： YU, Hongmiao ,  YAN, Zhiyu ,  YAN, Yan ,  HU, Ming ,  ZHAO, Youlin ,  WANG, Liyuan ,  WANG, Wenchao

    IPC分类号： H01B7/282 ,  H01B7/14

    摘要： A flexible direct-current submarine cable, including a water-blocking conductor (1) and an optical fiber assembly (2), where the water-blocking conductor (1) includes a conductor core (11) covering an outer side of the optical fiber assembly (2); the conductor core (11) includes at least two conductor layers (111) including a first conductor layer (111a) and a second conductor layer (111b); the first conductor layer (111a) and the second conductor layer (111b) are alternately provided along a radial direction of the optical fiber assembly; the first conductor layer (111a) is formed by stranding a plurality of first metal wires (30) arranged along a circumferential direction of the optical fiber assembly (2); the second conductor layer (111b) is formed by stranding a plurality of second metal wires (40) arranged along the circumferential direction of the optical fiber assembly (2).

    ASSEMBLAGE FOR BLOCKING WATER
    5.
    发明公开
    ASSEMBLAGE FOR BLOCKING WATER 审中-公开

    公开(公告)号：EP4002394A1

    公开(公告)日：2022-05-25

    申请号：EP20306363.1

    申请日：2020-11-12

    申请人： Nexans

    发明人： JOHANSEN, Ben Kristian

    IPC分类号： H01B7/282 ,  H01B13/00

    摘要： The invention concerns a solid ring-conductor assemblage (20) for blocking water from migrating in the axial direction of an electrical stranded conductor (1). The solid ring-conductor assemblage (20) comprises a ring and an electrical stranded conductor, wherein the diameter of an initial opening of the ring exceeds an outer diameter of the stranded conductor (1). The solid ring-conductor assemblage (20) is obtained by the process comprising the following steps:
    -placing the ring in an installed position where the electrical stranded conductor (1) runs through the initial opening,
    - applying a compressive force (F) onto the ring (2) in the installed position thereby compressing the ring (2) as well as the portion of the electrical stranded conductor (1) as covered by the ring into a compressed state, where the compressed ring and the compressed portion of the electrical stranded conductor bonds as an entity providing the solid ring-conductor assemblage (20).
    The invention also concerns_a ring to obtain the solid ring-conductor assemblage, a cable comprising a stranded electrical conductor wherein at least one ring is compressed around the electrical stranded conductor, and a method for manufacturing an electrical stranded conductor arranged with at least one solid ring-conductor assemblage.

    PROCESS FOR MANUFACTURING A SUBMARINE POWER CABLE AND POWER CABLE SO MANUFACTURED
    8.
    发明公开
    PROCESS FOR MANUFACTURING A SUBMARINE POWER CABLE AND POWER CABLE SO MANUFACTURED 审中-公开

    公开(公告)号：EP3792938A1

    公开(公告)日：2021-03-17

    申请号：EP20195806.3

    申请日：2020-09-11

    申请人： Prysmian S.p.A.

    发明人： POZZATI, Giovanni ,  CRISTOFANI, Fabrizio ,  FRIGERIO, Silvio ,  LIBOI, Paolo

    IPC分类号： H01B7/282 ,  H01B13/22 ,  H01B13/26 ,  H01B7/14 ,  B21C37/08 ,  H01B7/20

    摘要： Process for manufacturing a power cable (100) comprising: providing a power cable core (110) comprising an electric conductor (115) and having an outer diameter; providing a copper foil (300) having a width such that, after folding of the copper foil (300) to provide a copper sheath (120) around each power cable core (110), the copper sheath (120) has an inner diameter from 5 to 15 mm greater than the power cable core outer diameter; providing a protective strip (130) over the power cable core (110) in a position substantially matching a welding die (550a), the protective strip (130) having a radially inner and outer surface and being made of copper with a coating, at least on the radially outer surface, made of a metal or a metal alloy having a melting temperature comprised between 90 °C and 250°C; folding the copper foil (300) around the power cable core (110) so as to bring two longitudinal copper foil rims (310) to contact one to the other; welding the two contacted longitudinal copper foil rims (310) with a welding die (550a) thus obtaining a copper sheath (120) in form of a tube with a welding seam (125) and having a diameter; reducing the diameter of the copper sheath (120) to put it into direct contact with the power cable core (110) and the protective strip (130); heating the protective strip (130) and the copper sheath (120) at a temperature higher than the melting temperature of the coating of the strip (130) so that the coating fuses in the welding seam (125); extruding a polymeric sheath (140) around the copper sheath (120).

    CUNISI ALLOY CABLE SHEATHING
    9.
    发明公开
    CUNISI ALLOY CABLE SHEATHING 审中-公开

    公开(公告)号：EP3786982A1

    公开(公告)日：2021-03-03

    申请号：EP19306032.4

    申请日：2019-08-26

    申请人： Nexans

    发明人： JOHANSON, Audun

    IPC分类号： H01B7/282

    摘要： The present invention relates to a water blocking layer/sheathing for subsea power cables made from a CuNiSi-alloy.