EP1113460B1 - Câble, notamment câble sous-marin, et sa méthode de fabrication - Google Patents

Câble, notamment câble sous-marin, et sa méthode de fabrication Download PDF

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Publication number
EP1113460B1
EP1113460B1 EP00126358A EP00126358A EP1113460B1 EP 1113460 B1 EP1113460 B1 EP 1113460B1 EP 00126358 A EP00126358 A EP 00126358A EP 00126358 A EP00126358 A EP 00126358A EP 1113460 B1 EP1113460 B1 EP 1113460B1
Authority
EP
European Patent Office
Prior art keywords
armour
cable
section
strands
filler strands
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00126358A
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German (de)
English (en)
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EP1113460A3 (fr
EP1113460A2 (fr
Inventor
Matthias Hoch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Norddeutsche Seekabelwerke GmbH
Original Assignee
Norddeutsche Seekabelwerke GmbH
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Filing date
Publication date
Application filed by Norddeutsche Seekabelwerke GmbH filed Critical Norddeutsche Seekabelwerke GmbH
Publication of EP1113460A2 publication Critical patent/EP1113460A2/fr
Publication of EP1113460A3 publication Critical patent/EP1113460A3/fr
Application granted granted Critical
Publication of EP1113460B1 publication Critical patent/EP1113460B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/182—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/14—Submarine cables

Definitions

  • the invention relates to a cable, in particular a submarine cable, according to the preamble of claim 1. Furthermore, the invention relates to a method for producing a cable, in particular a submarine cable, according to the preamble of claim 8.
  • Cables have in addition to a predominantly metallic and / or optical conductor having cable core on a surrounding reinforcement of one or more reinforcing layers.
  • the reinforcement absorbs mechanical stresses on the cable. Particularly in submarine cables, the reinforcement serves to protect the cable core with the conductors during laying, picking up, landing, plowing or the like from the given mechanical loads. Sea areas with rocky, slippery seabed in the area of underwater mountains with steep slopes, even in shallower waters used for fishing and anchoring on the routes intended for landings, will be protected by additional reinforcement layers.
  • the reinforcement is not exposed to the same load on the continuous cable length everywhere. Since the reinforcing structure of continuous submarine cables must always be dimensioned as a function of the largest load, the reinforcement is over-dimensioned on longitudinal sections with less load. This makes such a cable more expensive and, above all, the cable has an unnecessarily large weight.
  • the present invention seeks to provide a cable, in particular a submarine cable, which has a structure that meets the local requirements and in which the reinforcement remains reliably held together. Furthermore, the invention has for its object to provide a simple method for producing such a cable, especially submarine cable.
  • a cable for achieving the above object has the features of claim 1.
  • individual reinforcing wires are at least partially replaced by filler strands preferably the same cross section of a less tensile and / or limp, especially lighter material
  • a reinforcement can be created, which is tuned to the predetermined mechanical loads of the cable.
  • the Grestrfite serve practically only as gap filler, which ensure that the reinforcement remains closed around by the Art istsdrähte hold the adjacent Arm istsdrähte in their intended position.
  • the cable is formed in the armor of several, at least two, Arm michsabitesen, but at least the cable core is uninterrupted.
  • the reinforcement of a reinforcement section has at least one filler strand in at least one end region which replaces a section of a reinforcement wire in the relevant end region of the reinforcement section.
  • the mechanical, external load capacity of the relevant area of the cable decreases towards the end of the relevant reinforcing section.
  • all reinforcing wires of a reinforcing layer of the reinforcing section are replaced by filler strands toward the connection point.
  • the reinforcing sections have different reinforcements for adapting the cable to different external loads.
  • the reinforcing portions usually have a different number of reinforcing layers. For example, a less loaded area of the cable has only a single reinforcement layer, while a more heavily loaded area has two (or even more) reinforcement layers.
  • the outer reinforcing layer of the reinforcing layer having several reinforcing layers in the direction of the other reinforcing section will have an increasingly smaller number of reinforcing wires in the longitudinal direction towards the end.
  • the fill strands replacing the reinforcing wires in sections in the course of the respective cable, in particular the uninterrupted cable core be connected to the respective reinforcing wire.
  • the reinforcing wire which is removed in some areas, is continued by the filler line serving as a placeholder in the longitudinal direction of the cable, that is, extended.
  • the connection of the respective Arm istsdrahts with the Grestrang takes place in particular by means that do not appreciably thicken the joint.
  • a thin-walled tube of preferably steel, aluminum or stainless steel is used. An end region of the reinforcing wire and of the filler strand to be joined is inserted into the tube halfway down its length and connected to the tube.
  • the inventive replacement of the reinforcing wires by filler strands can be used in all conceivable cable types and constructions, not only for submarine cable.
  • the individual reinforcing wires and filler strands of the reinforcement can run in a straight line in the longitudinal direction of the cable, but can also be twisted and / or stranded.
  • a method for solving the above-mentioned problem comprises the measures of claim 8. Characterized in that the continuous cable core is provided with a reinforcement, which is formed from different Arm michsabitesen, can be made to meet the requirements of reinforcing. Where the mechanical stresses of the cable are lower because, for example, a submarine cable is placed and plowed in shallower water depths, a reinforcing section with a smaller number of reinforcing wires can be used. In higher loaded areas, however, the reinforcement has reinforcing sections with a larger number of reinforcing wires. It can be such a cable, especially submarine cable form, which has in some areas a different strength strong armor. In submarine cables, the reinforcing sections are expediently chosen and placed in such a way that a reinforcement which meets the given requirements is produced, in particular the reinforcement for submarine cables is adapted to the depth profile of the cable route.
  • the replacement of individual armor wires with filler strands results in the cable retaining its usually round, cylindrical shape and the diameter does not change.
  • the cable produced by the method according to the invention therefore has a continuous course with a constant diameter in the longitudinal direction, without it being apparent on the outer shape of the cable, at which points and in which number of reinforcing wires have been replaced by filler strands.
  • the reinforcing wires of an outer reinforcing layer are increasingly replaced by filler strands towards the end of the respective Arm michsabitess, and preferably before so far that at the end of a Arm michsabitess at least the outer Arm michslage only has filler strands, which may be only the only ( inner) reinforcement of the adjacent Arm michsabitess can overlap a short distance.
  • the present at the end of the relevant Arm michsabitess only in the outer reinforcing layer ensure by their pliable properties cohesion of the outer reinforcing layer at the end of the Arm michsabitess, whereby the filler strands of the outer Arm michslage not jump.
  • the ends of the filler strands of the outer reinforcing ply may be held together by a bandage, such as high tensile fiber wrap, cords or the like, preferably in the entire transition region between adjacent reinforcing sections.
  • This bandage or wrapping may extend to form a continuous transition to the subsequent end portion of the adjacent reinforcement portion having a smaller diameter due to a lack of reinforcement layer.
  • FIG. 1 shows a cross section of a submarine cable 10 with a known per se structure.
  • FIG. 2 shows a cross section through a submarine cable 11 with a different construction of a basically known type.
  • the submarine cables 10 and 11 have basically the same structure inside. In that regard, the same reference numerals are used for both submarine cables 10 and 11.
  • the same design cable cores 12 of the submarine cable 10 and 11 have a central, central cladding tube 13.
  • the remaining cavity in the cladding tube 13 may optionally be filled by a highly viscous, flowable filling material.
  • the cladding tube 13 is surrounded by a reinforcing layer 15 of a plurality of identical reinforcing wires 16.
  • the metallic reinforcing wires 16 are arranged directly adjacent to one another in the reinforcing layer 15, so that they form a closed jacket around the cladding tube 13.
  • the cable core 12 has an inner sheath 17 made of an insulating material, such as plastic, in particular polyethylene.
  • the inner sheath 17 electrically separates the cable core 12 from the parts of the submarine cables 10 and 11 arranged around the cable core 12, and thus from the sea-ground when laid.
  • Each of the two submarine cables 10 and 11 has a reinforcement 18 and 19. These reinforcements 18 and 19 are formed differently in the submarine cables 10 and 11.
  • the reinforcement 18 is formed from two reinforcing layers 20 and 21.
  • An inner reinforcing layer 20 surrounds the inner sheath 17 of the cable core 12.
  • the outer reinforcing layer 21 surrounds the inner reinforcing layer 20.
  • the outer reinforcing layer 21 is preferably surrounded by an outer sheath 22 formed of plastic or a plastic-like material (for example polypropylene yarn) ,
  • the submarine cable 11 differs from the submarine cable 10 in that the reinforcement 19 has only a single reinforcement layer.
  • This Arm michslage corresponds to the inner Arm michslage 20 of the submarine cable 10 and is therefore provided with the same reference numeral.
  • the sole Arm réelleslage 20 of the submarine cable 11 is in turn surrounded by an outer sheath 24, the Protection of the submarine cable 11 and is made of the same material as the outer sheath 22 is formed.
  • the Arm michslagen 20 and 21 are formed from the same, circular Arm michsdrumbleten 25. These consist of steel, stainless steel or aluminum.
  • the Arm michsdrähte 25 are arranged in a sealing position around the cable core 12 around, whereby the Arm michslagen 20 and 21 form closed protective shells around the cable core 12 around.
  • the Arm michslagen 20 and 21 of the submarine cable 10 have different diameters. These come about despite the same diameter of the reinforcing wires 25 in that the outer reinforcing layer 21 has a larger number of Arm réellesdrähten 25 than the inner Arm réelleslage 20.
  • the Armtechnischsdrähte 25 individual or all Arm réelleslagen 20 and 21 are preferably stranded in a conventional manner. This also applies to the reinforcing wires 16 for forming the reinforcing layer 15 in the cable core 12 of the submarine cable 10 and / or 11.
  • the submarine cable has different reinforcements.
  • it is the reinforcements 18 and 19.
  • Arm michsabête from the reinforcements 18 and 19 are arranged in the requirements gereven way, especially in coordination with the cable route, distributed over the length of the submarine cable.
  • the cable core 12, which is always the same, runs uninterruptedly over the entire length of the submarine cable, that is to say continuously over the individual successive reinforcing sections. Where the reinforcing section is formed like the reinforcement 18, the submarine cable has a cross-section of the submarine cable 10 shown in Fig. 1.
  • the submarine cable is formed in cross-section like the submarine cable 11 of Fig. 2 .
  • the sequentially arranged on the continuous cable core 12 different Arm michsabitese preferably have continuous Arm michsdrähte 25 in the inner Arm michslage 20. It is also conceivable that the Arm michsdrähte 25 extend only over the respective Arm michsabites and are connected to each other in the transition region 28.
  • FIG. 1 shows a cross-section through a region of the submarine cable 10 in which four reinforcing wires 25 have been replaced by filling strands 31. There are each two juxtaposed Standstrlinde 31 arranged distributed on diametrically opposite regions of the outer Arm istslage 21.
  • the Standstrcarde 31 are formed of a less tensile material, which is additionally or alternatively limp. These requirements are fulfilled by filling strands 31 formed from plastic. These may be thermoplastic, unreinforced plastics, but also reinforced plastics, in particular fiber-reinforced plastics, for example glass fiber reinforced plastics. Such fill strands 31 are lighter than the reinforcing wires 25, whereby the weight of the submarine cable 10 can be reduced by adapting the reinforcement 18 to the prevailing pressure conditions.
  • a connection of the facing ends of the respective Arm michsdrahts 25 and its associated Grestrangs 31 can be through a pipe section namely, a thin-walled sleeve 32 (FIG. 4).
  • the sleeve 32 may be formed of different materials. Preferably, it is made of a material which is compatible with the material of the respective reinforcing wire 25, for example stainless steel, in particular stainless steel.
  • a thin-walled design of the sleeve 32 results in that only a slight and hardly disturbing increase in diameter is present at the juncture of the Arm istsdrahts 25 with the Grestrang 31.
  • the submarine cable is composed of several different Arm michsabitesen, the cable core 12 but runs continuously.
  • the reinforcement 18 and the reinforcement 19 follow each other alternately, so that successively different Reinforcing sections arise.
  • the number of different Arm michsabitese are no limits.
  • submarine cables 10 and 11 with different reinforcements 18, 19 can follow each other several times.
  • the positioning and length of the respective Arm michsabitese corresponds to the course, especially the water depths and the seabed condition, the route on which the submarine cables should be laid. Then, that portion of the assembled submarine cable having a reinforcing portion with a reinforcement 19 of only one reinforcing layer 20 is located in low stress areas.
  • the thicker reinforcing section with two reinforcing layers 20 and 21 has filler strands 31.
  • fill strands 31 are present only in the end region 29 of the outer reinforcing layer 21.
  • the filling strands 31 of the same are gradually replaced, ie along a transition section along the longitudinal axis of the continuous cable core 12 again by Arm michsdrähte 25. This can be done for each individual Standstrang 31 or each Arm michsdraht 25, but also in groups of multiple Standstrcarde 31 or Arm michsdrähte 25.
  • the formation of the outer reinforcing layer 21 at the end of the submarine cable 10 by only Drstrlinde 31 ensures a light cohesion of the formed of a pliable plastic Grestrfite 31 in the outer Arm michslage 21.
  • blunt filling strands 31 of the outer reinforcing layer 21 of a Arm michsabitess To equalize a reinforcing section with only one reinforcing layer 20 (FIG. 2), the ends of the filler strands 31 can be flattened or softened by softening.
  • the ends of the filler strands 31 at the end of the outer reinforcing layer 21 of the submarine cable 10 may be welded, whereby the filler strands 31 are reliably held together in the outer reinforcing layer 21.
  • a wrapping of the filling strands 31 to ensure their cohesion in the outer reinforcing layer 21 may then be omitted if necessary.
  • the invention is suitable for any type of cable and not only for the submarine cables 10 and 11 shown in the figures, for example.
  • a submarine cable with the appropriate length and defined alternating reinforcement which with respect to the capacity of the Route along which the submarine cable is to be laid, is adapted such that more resilient Arm michsabête are on such sections of the submarine cable, which have a greater depth and less resilient Arm michsabitese sections lower water depth and thereby not so high load are assigned. It is thus possible to produce a submarine cable adapted to the prevailing conditions with regard to the reinforcement.

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  • Insulated Conductors (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Ropes Or Cables (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Claims (12)

  1. Câble, en particulier câble sous-marin (10, 11), qui présente une âme de câble (12) dotée de préférence de plusieurs conducteurs, une armature (18, 19) qui entoure cette âme et constituée de plusieurs parties d'armature, et des brins plus légers que les fils d'armature (25) et qui remplacent au moins certains fils d'armature (25) d'au moins une partie de l'armature, caractérisé en ce qu'au moins une partie de l'armature (19) présente plusieurs couches d'armature (20, 21) et en ce que cette ou ces parties d'armature présentent au moins une couche d'armature (21) de plus qu'une autre partie de l'armature, au moins certains fils d'armature (25) de la partie de l'armature (19) qui présente une couche d'armature (21) de plus sont remplacés au moins en partie par des brins plus légers configurés comme brins de remplissage (31), en un matériau plus léger, moins résistant en traction que les fils d'armature (25) et/ou flexible.
  2. Câble selon la revendication 1, caractérisé en ce que les brins de remplissage (31) présentent sensiblement la même section transversale que les fils d'armature (25) remplacés par ces brins de remplissage (31) et en ce que les brins de remplissage (31) sont de préférence réalisés en matière synthétique.
  3. Câble selon les revendications 1 ou 2, caractérisé en ce que le nombre des brins de remplissage (31) qui remplacent les fils d'armature (25) se modifie sur la longueur d'au moins une partie de l'armature, le nombre des brins de remplissage (31) augmentant de préférence en direction de l'extrémité de la partie concernée de l'armature.
  4. Câble selon l'une des revendications précédentes, caractérisé en ce que les brins de remplissage (31) sont reliés aux fils d'armature (25).
  5. Câble selon l'une des revendications précédentes, caractérisé en ce que les brins de remplissage (31) sont disposés dans la couche extérieure d'armature (21).
  6. Câble selon l'une des revendications précédentes, caractérisé en ce que les brins de remplissage (31) s'étendent jusqu'à une extrémité de la partie d'armature adjacente à une autre partie de l'armature et dotée des câbles de remplissage (31).
  7. Câble selon la revendication 5, caractérisé en ce que sur une extrémité de la partie d'armature qui présente les brins de remplissage et qui est tournée vers la partie d'armature suivante, tous les films d'armature (25) de la couche extérieure d'armature (21) sont remplacés par des brins de remplissage (31).
  8. Procédé de fabrication d'un câble et en particulier d'un câble sous-marin (10, 11), dans lequel une âme continue de câble (12) est dotée d'au moins une armature extérieure formée par différentes parties d'armature et dotée de plusieurs fils d'armature (16, 25), des fils individuels d'armature (25) étant remplacés dans au moins une partie de l'armature par des brins plus légers que les fils d'armature (25), caractérisé en ce qu'une partie des fils d'armature (25) de cette partie d'armature est remplacée par des brins plus légers configurés comme brins de remplissage (31), cette partie d'armature présentant un plus grand nombre de couches d'armature (20, 21) qu'une autre partie de l'armature, un nombre progressivement plus élevé de fils d'armature (25) de la couche extérieure d'armature (21) étant remplacé par les brins de remplissage (31) en direction de l'extrémité de la partie d'armature concernée, les brins de remplissage (31) étant formés d'un matériau plus léger, moins résistant en traction et/ou flexible.
  9. Procédé selon la revendication 8, caractérisé en ce que dans la zone d'une extrémité qui doit être reliée à l'autre partie de l'armature, au moins une partie des fils d'armature (25) d'une partie d'armature est remplacée par les brins de remplissage (31), les brins de remplissage (31) étant reliés aux fils d'armature (25) qui sont remplacés par les brins de remplissage (31).
  10. Procédé selon les revendications 8 ou 9, caractérisé en ce que dans le sens de la longueur du câble et en particulier du câble sous-marin (10), des parties des fils d'armature (25) sont remplacées progressivement par les brins de remplissage (31) de préférence en donnant des longueurs différentes à certains tronçons longitudinaux ou à des groupes de plusieurs tronçons longitudinaux des brins de remplissage (31).
  11. Procédé selon les revendications 8 ou 9, caractérisé en ce qu'en direction de l'extrémité de la partie d'armature qui présente plusieurs couches d'armature (20, 21), un nombre de plus en plus grand de fils d'armature (25) sont progressivement remplacés jusqu'à ce que tous les fils d'armature (25) de la couche extérieure d'armature (21) aient été remplacés par des brins de remplissage (31).
  12. Procédé selon l'une des revendications précédentes, caractérisé en ce que tous les brins de remplissage (31) de la couche extérieure d'armature (21) de la partie d'armature concernée se terminent dans la zone de la transition avec la partie d'armature voisine, de préférence essentiellement bout à bout.
EP00126358A 1999-12-27 2000-12-02 Câble, notamment câble sous-marin, et sa méthode de fabrication Expired - Lifetime EP1113460B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19963205 1999-12-27
DE19963205 1999-12-27

Publications (3)

Publication Number Publication Date
EP1113460A2 EP1113460A2 (fr) 2001-07-04
EP1113460A3 EP1113460A3 (fr) 2002-09-25
EP1113460B1 true EP1113460B1 (fr) 2006-05-17

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EP00126358A Expired - Lifetime EP1113460B1 (fr) 1999-12-27 2000-12-02 Câble, notamment câble sous-marin, et sa méthode de fabrication

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Country Link
US (1) US6567591B2 (fr)
EP (1) EP1113460B1 (fr)
JP (1) JP2001210150A (fr)
AT (1) ATE326761T1 (fr)
DE (2) DE10059918A1 (fr)

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JP2002140937A (ja) * 2000-11-01 2002-05-17 Furukawa Electric Co Ltd:The 外装付き長尺体
US7184364B2 (en) * 2002-10-29 2007-02-27 Geospace Engineering Resources International, Lp Armored seabed laid seismic cable and method and apparatus for manufacturing same
KR100506860B1 (ko) * 2003-12-03 2005-08-08 엘에스전선 주식회사 광섬유 복합 전력 케이블
DE102004015219B4 (de) * 2004-03-22 2006-04-20 Warschau, Katrin Kabel für geophysikalische Mess- und Erkundungszwecke
BRPI0823359B1 (pt) 2008-12-29 2019-02-05 Prysmian Spa cabo para transmissão de energia elétrica
DE102009057147A1 (de) 2009-12-05 2011-06-09 Führer, Werner Kabel hoher Steifigkeit
US8915659B2 (en) 2010-05-14 2014-12-23 Adc Telecommunications, Inc. Splice enclosure arrangement for fiber optic cables
US8885998B2 (en) * 2010-12-09 2014-11-11 Adc Telecommunications, Inc. Splice enclosure arrangement for fiber optic cables
US9190184B2 (en) 2011-04-12 2015-11-17 Ticona Llc Composite core for electrical transmission cables
WO2012142107A1 (fr) 2011-04-12 2012-10-18 Ticona Llc Tiges thermoplastiques renforcées par des fibres continues et procédé de pultrusion pour leur fabrication
AU2012242983A1 (en) 2011-04-12 2013-10-03 Ticona Llc Umbilical for use in subsea applications
JP6169006B2 (ja) * 2014-01-20 2017-07-26 古河電気工業株式会社 海中ケーブル、海中ケーブル敷設構造、および海中ケーブルの敷設方法
EP3183736B1 (fr) * 2014-08-21 2019-11-20 Materion Corporation Fil pour transmission en eau profonde
DE102014014794A1 (de) 2014-10-10 2016-04-14 Werner Führer Kabel hoher Steifigkeit und Verfahren zur Herstellung desselben
DE102014014793A1 (de) 2014-10-10 2016-04-14 Werner Führer Kabel hoher Steifigkeit
ES2929629T3 (es) * 2015-11-10 2022-11-30 Bekaert Sa Nv Método para producir un cable de transmisión de potencia eléctrica
EP3333995B1 (fr) * 2016-12-07 2024-08-07 Nexans Système de câble sous-marin à faible perte et procédé de pose d'un système de point d'arrivée de câbles sous-marins
KR102710133B1 (ko) * 2019-02-18 2024-09-25 엘에스전선 주식회사 이종 아머 와이어 및 이를 구비하는 해저케이블
CN112635107A (zh) * 2020-12-18 2021-04-09 中天科技海缆股份有限公司 系泊缆及其制造方法

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GB2138523B (en) * 1983-04-22 1986-05-21 Bridon Plc Variable density cables
EP0811177B1 (fr) * 1995-12-20 2006-08-09 Alcatel Configuration de cable sous-marin resistant a l'abrasion

Also Published As

Publication number Publication date
US6567591B2 (en) 2003-05-20
EP1113460A3 (fr) 2002-09-25
ATE326761T1 (de) 2006-06-15
EP1113460A2 (fr) 2001-07-04
DE50012767D1 (de) 2006-06-22
JP2001210150A (ja) 2001-08-03
DE10059918A1 (de) 2001-06-28
US20010016103A1 (en) 2001-08-23

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