Nexans Patente

A method for attaching an anchoring component to an armor wire (16) of a transmission line for a fitting comprises the steps of providing an anchoring component (2) having an aperture for feeding through the armor wire, placing the anchoring component with the aperture onto the armor wire (16) by passing an end of the armor wire through the aperture and moving the anchoring component along the armor wire (16) into a predetermined first position having a first distance (d1) to an interface section at the end of the armor wire (16), temporarily fixating the armor wire (16) at a second position having a second distance (d2) to the interface section, the second distance (d2) exceeding the first distance (d1), introducing a torque at the interface section to twist a section of the armor wire (16) extending from the interface section up to the temporarily fixated second position, thereby interlocking the anchoring component (2) and the aperture together, and releasing the armor wire (16) at the second position, wherein the armor wire (16) has a non-circular cross-sectional shape, and wherein the aperture is shaped to conform a cross-sectional shape of the armor wire (16).

Connection device (20) comprising a separable electrical connector (21) and a stress cone (22), the connector comprising a casing (32) comprising a first chamber (23), a second chamber (24) and a external conductive layer (31), the stress cone (22) comprising a body (54) and an insulating layer (55) integrated onto a groove (66) of the body during manufacturing of the stress cone, such that the stress cone comprises a first insulating external surface (68) and a second external surface (69) intended to be connected to an external shield layer of the cable, the first external surface (68) extending partially inside and partially outside the second chamber (24) of the casing (32), so as to create a shield break between the external conductive layer (31) of the casing (32) and the external shield layer of the cable.

A separable electrical connector (21), comprising a casing (32) comprising a first chamber (23) and a second chamber (24), and an internal electrode (30) wrapped by an insulating material (33) and arranged to receive a cable lug (46) comprising a connecting portion (48) intended to be connected to at least one interface in the first chamber and a receiving portion (47) into which the end of the cable is positioned, the internal electrode being arranged so that when the cable lug is positioned in the internal electrode after the end of the cable has been forcibly inserted into the connector, part of the connecting portion and the entire receiving portion of the cable lug are located in the second chamber so that tensions generated in the insulating material by the forced insertion are concentrated in the second chamber (24).

A radial water barrier for a subsea cable is proposed, wherein the water barrier comprises a longitudinally welded lead-free metal sheet formed into a tube having an outer surface, wherein at least a part of the outer surface has a radially undulating structure with a pitch of at least 2 mm in a longitudinal direction, and wherein the radially undulating structure has an amplitude in form of a radial depth of the geometric pattern in the range of 0.015 mm to 5 mm.

Assemblage (30) comprenant une torsade (31) constituée par deux câbles électriques (21, 22) à un conducteur qui sont torsadés de sorte que chacun des deux câbles électriques (21, 22) forme une hélice de pas P, les deux câbles électriques (21, 22) présentant respectivement des diamètres extérieurs D1 et D2,caractérisé en ce que le pas P est égal à au plus 50 fois un diamètre extérieur sur assemblage OD, le diamètre extérieur sur assemblage OD étant la somme des diamètres extérieurs D1 et D2 : OD = D1 +D2,et en ce que la torsade (31) ne comporte pas de dispositif mécanique coopérant avec les câbles électriques ou de matériau déposé sur les câbles électriques pour maintenir torsadés les câbles électriques.Application particulière à des installations en extérieur, notamment des installations comprenant au moins un panneau solaire photovoltaïque (50).

There is provided a method of manufacturing a power cable, the power cable comprising at least a cable core and a lead-free metallic water barrier (202) surrounding the cable core. The method comprises heating at least a first portion of the lead-free metallic water barrier (202); surrounding the first portion of the lead-free metallic water barrier (202) with a heat-activatable adhesive layer (212); and surrounding at least a portion of the adhesive layer (212) with a reinforcement layer (216). The adhesive layer (212) adheres to the water barrier (202) and to the reinforcement layer (216).

There is provided a cable handling system for deploying a cable bundle from a cable-laying vessel. The cable bundle comprises a first layer and a second layer on top of the first layer. The first layer comprises a first cable and a second cable adjacent to the first cable. The second layer comprises a third cable. The cable handling system comprises an over-boarding guide assembly comprising a curved surface for bending the cable bundle as the cable bundle is deployed overboard. The cable handling system comprises a bundle support structure provided on or adjacent to the over-boarding guide assembly. The cable handling system comprises a first side support and a second side support arranged such that the first layer of the cable bundle is receivable therebetween as the cable bundle is bent. The first and second side supports are arranged to substantially constrain lateral movement of the first cable with respect to the second cable as the cable bundle passes therethrough.

The present invention relates to wet design high voltage (HV) power cables comprising a cable core, which cable core comprises an electrical conductor being surrounded by an inner semiconductive layer, an insulation layer and optionally an outer semiconductive layer in that order. Further, the present invention relates to a method of manufacturing a wet design HV power cable. Moreover, the present invention relates to the use of the wet design HV power cable.

A system for inspection of an insulation system of a cable, wherein the cable comprises an electric conductor and an insulation system surrounding the electric conductor, the system comprises a cable stripping device configured to radially slice the cable insulation system to produce a helically formed strip of insulation, and an optical inspection device configured to receive the helically formed strip of insulation and inspect it to detect any anomalies present in the helically formed strip of insulation.

The present invention relates to a process for preparing a joint between two electric high voltage power cables. Further, the present invention relates to a flexible vulcanized joint between two power cables as well as to a joined power cable.

L'invention concerne un câble électrique comprenant au moins un élément électriquement conducteur allongé et au moins une couche électriquement isolante obtenue à partir d'une composition polymère comprenant (i) au moins un matériau polymère thermoplastique à base de polypropylène ; et (ii) au moins un additif qui est un polymère porteur de groupements carbonylés

A power cable (10) comprises at least one cable core (11) comprising an electrical conductor (20) having two or more conductor elements (12) and an insulating system (19, 15, 16) radially surrounding the electrical conductor (20), where the insulating system comprises an inner semiconductive layer, insulation layer and outer semiconductive layer. The electrical conductor (20) comprises a plurality of transversally arranged watertight barriers (21) arranged intermittently along the longitudinal direction of the power cable (10) wherein the plurality of watertight barriers (21) have a diameter (D) and a length (L), where the diameter of the watertight barriers essentially corresponds to the diameter (d) of the conductor, and wherein the outer surface of the plurality of watertight barriers (21) is watertight linked to an extension layer extending a distance along the length of the electrical conductor. A method for manufacturing a power cable with water barrier, comprising the steps of: a) providing an electrical conductor (20) having two or more conductor elements (12), b) providing a plurality of watertight barriers arranged intermittently along the longitudinal direction of the electrical conductor, wherein the plurality of watertight barriers have a diameter and a length, where the diameter of the watertight barriers essentially corresponds to the diameter of the electrical conductor, c) link the outer surface of the plurality of watertight barriers (21) watertight to an extension layer so that the extension layer extends a distance along the length of the electrical conductor, and d) providing an insulating system (13, 15, 16) radially surrounding the electrical conductor (20), where the insulating system comprises an inner semiconductive layer, insulation layer and outer semiconductive layer.

A high voltage direct current (HVDC) power cable comprising a non-solid conductor (20), an inner semiconducting layer (19) surrounding the non-solid conductor (20), an insulating layer (15) surrounding the inner semiconducting layer (19) and an outer semiconducting layer (16) surrounding the insulation layer, wherein a water blocking composition is included in interstices of the non-solid conductor (20) wherein the water blocking composition comprises 20-95 wt-% polymer base comprising a polymer selected from polyisoprene, butyl rubber, neoprene, ethylene propylene rubber, ethylene propylene diene monomer rubber, ethylene-octene, styrene ethylene butadiene styrene, polyurethanes and silicone rubber; and 5-50 wt-% conductive filler.

L'invention concerne un câble (10) électrique comprenant une âme (7) conductrice et un système (9) isolant entourant ladite âme conductrice (7), et dans lequel le système isolant comprend au moins une couche (8) comprenant une matrice (11) polymère dans laquelle sont dispersées des particules (3) solides de polymère réticulé, avantageusement issu d'un recyclage.

A method of manufacturing an electric power cable comprises providing a plurality of conductor elements, stranding the conductor elements to combine the conductor elements into at least one conductor layer to form a conductor, applying a water blocking composition to the conductor elements in a stranding region during the stranding, such that interstices between the conductor elements comprise the water blocking composition, heating the conductor elements before and/or during entering the stranding region to a first temperature, and scraping off a part of the water blocking composition to adjust a layer thickness of the water blocking composition on the at least one conductor layer to a predetermined level, wherein the water blocking composition is configured to prevent water ingress within the at least one cable element.

The present invention relates to the technical field of subsea power cables. More specifically, the invention relates to a method of manufacturing a high voltage power cable comprising a cable core surrounded by an insulation system, wherein the cable core comprises conductor elements and a water blocking composition, wherein the method comprises the steps of stranding the conductor elements to obtain a stranded bundle of conductor elements, introducing the water blocking composition in the voids left in the stranded bundle of conductor elements, degassing of the water blocking composition, obtaining the cable core, and surrounding the insulation system coaxially around the cable core. The present invention further relates to a high voltage power cable produced by the method according to the invention and a use of the high voltage power cable.

A dynamic high-voltage submarine cable comprises at least one cable core comprising an electrical conductor and an electrically insulating layer (4) radially surrounding outside of the electrical conductor (3), and a water barrier radially surrounding outside of the cable core (2). The water barrier comprises a corrugated metal tube (10) having an inner diameter (20) larger than 90mm and a corrugation pitch (p) in a range of 4 - 12 mm, characterized in that the metal tube has a wall thickness (T) in a range of 0.1 - 1,2 mm and a corrugation depth (d) of more than 5 mm.

A power cable system, comprising a power cable, and a cooling device thermally coupled to the power cable, wherein the cooling device comprises an enclosure, wherein a first region of the enclosure is configured to absorb heat from one part of the power cable, wherein a second region of the enclosure is configured to release heat to another part of the power cable, another object or the environment, and wherein the cooling device has a two-phase heat transfer mechanism inside the enclosure for conducting a heat transfer between the first region and the second region.

La présente invention concerne un câble électrique comprenant au moins un élément allongé électriquement conducteur et une couche électriquement isolante en contact direct avec l'élément allongé électriquement conducteur, où :- la couche électriquement isolante est obtenue à partir d'une composition polymère thermoplastique qui comprend au moins 50 % en masse de polypropylène, sous forme d'un homopolymère, d'un copolymère, ou en mélange et sous forme homophasique, hétérophasique ou en mélange ; et- la couche électriquement isolante comprend des bulles de gaz.

There is provided apparatus for enabling space charge distribution measurement of a high voltage cable (110). The apparatus comprises: a compartment (140; 240; 340; 440) for holding a pulsed electro-acoustic, PEA, sensor (260; 360) in contact with the high voltage cable; and a coupling structure (130; 230; 330; 424; 529) configured to couple the compartment to the high voltage cable between a base of a termination device (120; 420) of the high voltage cable and a ground screen (150; 450) of the high voltage cable.

La présente invention concerne un procédé de fabrication en continu d'un câble électrique (1) comprenant un élément électriquement conducteur allongé (2), une couche isolante (3) entourant ledit élément électriquement conducteur allongé ; et une gaine (4) entourant ladite couche isolante , et dans lequel :- la couche isolante (3) est extrudée autour dudit élément électriquement conducteur allongé (2), à partir d'une première composition polymère thermoplastique C1 non réticulable ; et- la gaine (4) est extrudée autour de la couche isolante (3) , à partir d'une deuxième composition polymère thermoplastique C2 non réticulable, distincte de la composition C1.

La présente invention a pour objet un câble électrique (1), notamment bien adapté pour le transport d'énergie à basse tension, comprenant au moins une couche électriquement isolante (3) entourant au moins un élément électriquement conducteur allongé (2), où ladite couche isolante (3) est obtenue à partir d'une composition polymère thermoplastique comprenant un polymère de propylène homophasique ; et un copolymère d'éthylène hétérophasique, présent à hauteur de moins de 40% en poids par rapport au poids total de polymères dans la composition polymère thermoplastique.

La présente invention concerne un procédé de préparation d'un câble électrique comprenant une étape d'application d'une couche électriquement isolante autour d'au moins un élément électriquement conducteur allongé à partir d'une composition polymère, où des précurseurs minéraux sont introduits dans la composition polymère préalablement à ladite application, qui sont ensuite convertis sous forme de particules minérales. L'invention concerne également les câbles tels qu'obtenus selon ce procédé qui comprennent des particules minérales au sein de leur couche électriquement isolante, et qui sont particulièrement bien adaptés au transport de courant continu à moyenne ou haute tension.

Ce clip (10) de maintien multifonction comporte : une paire de gorges (16, 18) adaptée à retenir deux spires (12, 14) adjacentes d'un même élément enroulable ou à maintenir un ou deux objets au moins partiellement cylindriques, la section transversale de la paire de gorges (16, 18) formant un oméga dont la branche centrale est commune aux deux gorges de la paire de gorges (16, 18) ; et une gorge (19) en C dont l'ouverture est à l'opposé de l'ouverture de la paire de gorges (16, 18), les gorges de la paire de gorges (16, 18) et la gorge (19) en C étant adaptées à se clipser sur un support et la gorge (19) en C étant en outre adaptée à s'emboîter de façon coaxiale dans une gorge de la paire de gorges (16, 18) d'un autre clip (10) identique.

A power cable assembly is proposed, comprising a first power cable end section having a first conductor, a first electrically insulating layer and a first metallic function layer arranged outside the first electrically insulating layer; a second power cable end section having a second conductor, a second electrically insulating layer and a second metallic function layer arranged outside the second electrically insulating layer; a cable joint electrically connecting the first conductor and the second conductor, wherein the cable joint has a joint insulating layer for joining the first electrically insulating layer and the second electrically insulating layer, and a joint metallic function layer for joining the first metallic function layer and the second metallic function layer, wherein the joint metallic function layer is soldered to the first metallic function layer and second metallic function layer under use of a lead-free soldering material or wherein the joint metallic function layer comprises a lead-free soldering material, and wherein the lead-free soldering material comprises at least one of a group of components, the group consisting of indium, tin, aluminium, copper, silver, bismuth, zinc, antimony, lithium and their alloys.

Ce dispositif (10) de stockage, transport et installation de fils ou câbles électriques, comporte : une première plaque (12) en matière plastique ; une seconde plaque (14) en matière plastique parallèle à la première plaque (12) ; quatre tubes (16) métalliques reliant entre elles les première et seconde plaques (12, 14) ; au moins un cylindre (18) sur lequel est enroulé un fil ou câble électrique, le cylindre (18) étant monté sur la première plaque (12) et sur la seconde plaque (14) et étant mobile en rotation autour de son axe de révolution ; et au moins une poignée (20) de transport.

A power cable characterized in that the ratio of the total mass of the materials of the power cable used to make the power cable and coming from a circular economy source to the total mass of the materials used to make the power cable is at least 20%

The present invention relates to a power cable comprising a cable core comprising an electrical conductor and an electrically insulating layer surrounding the electrical conductor, and a water barrier sheath surrounding the cable core, wherein the water barrier sheath comprises a metal layer, wherein the metal layer comprises a metal alloy comprising zinc, or a zinc alloy.

A transfer line arrangement (200) comprises a transfer line (201, 220) for fluids and a support structure (116, 117, 118) attached to the transfer line. The transfer line comprises flexible sections (202) enabling pivotable movement of the transfer line around an axis such that one end of the transfer line is connectable to a connector at a fluid source (107) for a fluid and the other end of the transfer line is connectable with a connector (111) at a tank to be filled with fluid. The transfer line comprises vacuum insulated multiwalled tubes.

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L'invention a pour objet un boîtier de connexion comportant une paire principale et une paire secondaire de contacts électriques sur une carte de circuit imprimé (22), chaque paire comprenant un premier (24<1>, 24<2>) et un second (25<1>, 25<2>) contacts électriques; un premier ensemble (26<1>) de pistes conductrices couplant électriquement les premiers contacts des paires principale (23<1>) et secondaire (23<2>), et un deuxième ensemble (26<2>) de pistes couplant électriquement les seconds contacts des paires principale et secondaire. Les contacts de la paire principale sont deux contacts à perforation ou à déplacement d'isolation recevant transversalement et connectant directement deux conducteurs isolés d'un même câble principal Ethernet à paire unique (1a) entrant et sortant du boîtier par deux voies principales (27<1>, 27<2>) d'accès au boîtier. Les contacts de la paire secondaire (23<2>) connectent électriquement deux conducteurs isolés d'un même câble secondaire Ethernet (1b) relié au travers d'une voie secondaire (27<3>) d'accès au boîtier.

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