公开(公告)号：US20240120131A1

公开(公告)日：2024-04-11

申请号：US18131868

申请日：2023-04-07

Applicant: NEXANS

Inventor： Audun JOHANSON ,  Sigurd SCHAWLANN ,  Massimiliano MAURI ,  Simon JORGENSEN

IPC: H01B7/282 ,  H01B1/02 ,  H01B9/00

CPC classification number: H01B7/2825 ,  H01B1/02 ,  H01B9/00 ,  H01B7/14

Abstract: A metallic water barrier sheath for power cables for submarine or land applications is provided where the water barrier sheath comprises a metallic layer made of tin or a tin alloy.

公开(公告)号：US20240233980A1

公开(公告)日：2024-07-11

申请号：US18543283

申请日：2023-12-18

Applicant: NEXANS

Inventor： Anton AKULICHEV ,  Massimiliano MAURI ,  Audun JOHANSON

IPC: H01B7/282 ,  H01B3/00 ,  H01B7/14

CPC classification number: H01B7/2825 ,  H01B3/002 ,  H01B7/14

Abstract: A water barrier (130) for a power cable has a composite layer having a first component, where the first component is a polymer, and at least a second component. The second component is impermeable to water molecules where the second component is selected from fibres having an aspect ratio of 10 or higher and an average length of 1 mm or less, plate-like particles having an aspect ratio of 10 or higher, fibres having an average length of more than 1 mm, fabrics or any combination thereof. The second component is dispersed into the first component, a power cable (100).

公开(公告)号：US20240233979A1

公开(公告)日：2024-07-11

申请号：US18540385

申请日：2023-12-14

Applicant: NEXANS

Inventor： Massimiliano MAURI ,  Sigurd SCHAWLANN ,  Audun JOHANSON ,  Karl Magnus BENGTSSON

IPC: H01B7/282

CPC classification number: H01B7/282

Abstract: A joint (300) for joining a first electric cable (100) and a second electric cable (200), each cable (100; 200) having an electric conductor, an insulation system surrounding the electric conductor, and a water barrier (130;230) surrounding the insulation system. The insulation system has an inner semiconducting layer, an insulating layer and an outer semiconducting layer, where the joint has an electrical conductor joint electrically connecting end sections of the two electrical conductors. An insulation system joint has an inner layer made of a first polymeric semiconducting material surrounding the electric conductor joint, an intermediate insulating layer made of a polymeric insulating material, covering an external surface of the inner semiconducting layer, an outer layer made of a second polymeric semiconducting material, covering an external surface of the insulating layer; and a water barrier layer surrounding the insulation system joint, wherein the water barrier layer is made of pre-formed water barrier elements (140a; 140b; 240a; 240b).

公开(公告)号：US20220189659A1

公开(公告)日：2022-06-16

申请号：US17547358

申请日：2021-12-10

Applicant: NEXANS

Inventor： Massimiliano MAURI ,  Simon JORGENSEN ,  Knut Magne FURUHEIM ,  Bettina GRORUD ,  Markus JARVID ,  Audun JOHANSON

IPC: H01B7/282 ,  H01B7/14

Abstract: A lead-free water barrier suited for dynamical submarine high voltage power cables has a water barrier including a laminate structure. The laminate structure has a metal foil having a lower and an upper surface area. A first layer of a thermoplastic semiconducting polymer is laid onto the first adhesive layer, and a second layer of a thermoplastic semiconducting polymer is laid onto the second adhesive layer. The laminate structure is thermally joined by a heat treatment.

公开(公告)号：US20240203620A1

公开(公告)日：2024-06-20

申请号：US18288865

申请日：2022-04-12

Applicant: NEXANS

Inventor： Audun JOHANSON ,  Simon JORGENSEN ,  Massimiliano MAURI

IPC: H01B9/02 ,  H01B13/24

CPC classification number: H01B9/02 ,  H01B13/24

Abstract: A water barrier for encapsulating a cable core has an inner layer of lead-free metal foil having an elastic modulus lower than 210 GPa, an intermediate layer of adhesive material, and an outer layer of a polyethylene-based semi-conducting polymer having an elastic modulus higher than 0.5 GPa. A power cable is providing having such a water barrier.

公开(公告)号：US20230378740A1

公开(公告)日：2023-11-23

申请号：US18132702

申请日：2023-04-10

Applicant: NEXANS

Inventor： Audun JOHANSON ,  Sigurd SCHAWLANN ,  Massimiliano MAURI ,  Simon JORGENSEN

IPC: H02G15/18 ,  H02G1/14

CPC classification number: H02G15/18 ,  H02G1/14

Abstract: Power cables are provided having a joint with a metallic water barrier and, in particular, metallic water barrier materials for cable joints for use in high voltage cables for both land and submarine applications.

公开(公告)号：US20240363264A1

公开(公告)日：2024-10-31

申请号：US18685382

申请日：2022-08-02

Applicant: NEXANS

Inventor： Massimiliano MAURI ,  Simon JORGENSEN

IPC: H01B7/282 ,  H01B13/26

CPC classification number: H01B7/282 ,  H01B13/26

Abstract: The present arrangement includes both a method of applying a non-lead sheathed radially and longitudinally conductive water barrier to a high voltage cable and a non-lead sheathed radially and longitudinally conductive water barrier and a laminate tape.

公开(公告)号：US20230139062A1

公开(公告)日：2023-05-04

申请号：US17521468

申请日：2021-11-08

Applicant: NEXANS

Inventor： Massimiliano MAURI ,  Simon JORGENSEN ,  Pal GRONBERG BRAEKKE

IPC: H01B7/282 ,  H02G15/184

Abstract: A reinforced water barrier over a joint between power cables is suited for subsea cables having different water barrier/sheathing designs. The reinforced water barrier comprises an intermediate water barrier made of lead or a lead alloy which stretches over the joint and is attached to the underlaying water barriers of the joined cables, and which is reinforced by being coated with a layer of polyethylene based adhesive followed by a layer of polymeric outer sheathing. The adhesive layer and the layer of polymeric outer sheathing are thermally set by a heat treatment.

公开(公告)号：US20220376483A1

公开(公告)日：2022-11-24

申请号：US17731171

申请日：2022-04-27

Applicant: NEXANS

Inventor： Massimiliano MAURI ,  Erik Markus JARVID

IPC: H02G1/14 ,  H02G15/196 ,  H02G15/00

Abstract: An insulation system for jointing of high voltage conductors has an inner layer made of a crosslinked first polymeric semiconducting material, an intermediate insulating layer made of a thermoplastic polymeric insulating material, and an outer layer made of a second polymeric semiconducting material. The insulation system is adapted for surrounding the electric conductor joint.

公开(公告)号：US20240420868A1

公开(公告)日：2024-12-19

申请号：US18742849

申请日：2024-06-13

Applicant: NEXANS

Inventor： Audun JOHANSON ,  Massimiliano MAURI

IPC: H01B7/282 ,  H01B7/14 ,  H01B13/22

Abstract: A method of manufacture for a subsea power cable (100), includes the step of providing at least one cable core (125) having an electrical conductor (110) and an electrically insulating system (120) arranged radially outside of the electrical conductor (110). The method includes adding a liquid material having a polymer, on top of the at least one cable core (125), forming a buffer layer (130); and applying a water barrier (140) radially outside of the buffer layer (130).