EP1986199B1 - Verfahren zur Herstellung eines isolierten elektrischen Leiters der Klasse 5 - Google Patents

Verfahren zur Herstellung eines isolierten elektrischen Leiters der Klasse 5 Download PDF

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Publication number
EP1986199B1
EP1986199B1 EP08154662.4A EP08154662A EP1986199B1 EP 1986199 B1 EP1986199 B1 EP 1986199B1 EP 08154662 A EP08154662 A EP 08154662A EP 1986199 B1 EP1986199 B1 EP 1986199B1
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EP
European Patent Office
Prior art keywords
assembly
class
strand
conductive wires
section
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.)
Active
Application number
EP08154662.4A
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English (en)
French (fr)
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EP1986199A3 (de
EP1986199A2 (de
Inventor
Alain Clertant
Didier Cumin
Eric Joyeux
Alain Maziere
Pascal Poupon
Thierry Seux
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.)
Nexans SA
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Nexans SA
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Publication date
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Publication of EP1986199A2 publication Critical patent/EP1986199A2/de
Publication of EP1986199A3 publication Critical patent/EP1986199A3/de
Application granted granted Critical
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    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/0006—Apparatus or processes specially adapted for manufacturing conductors or cables for reducing the size of conductors or cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/006—Constructional features relating to the conductors

Definitions

  • the present invention relates to a method of manufacturing an insulated electrical conductor, to an insulated electrical conductor obtained by said method as well as to an energy cable comprising said electrical conductor.
  • EP-1418 595 discloses a circular cross-section electrical cable comprising a plurality of insulated electrical conductors relative to each other, each electrical conductor having a polygonal cross-section.
  • the method of manufacturing such an isolated electrical conductor comprises several steps.
  • Class 5 lead wires typically copper or aluminum are compression-bonded together to form an electrical conductor of circular cross-section.
  • Class 5 relates to conductor wires having a respective diameter of not more than 0.61 mm in accordance with IEC-60228.
  • the electrical conductor of circular cross section is preformed into an electrical conductor of polygonal cross section, in particular sector-shaped.
  • an insulating sheath is extruded around the preformed electrical conductor and maintains the polygonal shape of the preformed electrical conductor.
  • this type of method has the disadvantage of further comprising an additional step necessary to extrude the insulating sheath on the preformed electrical conductor.
  • this additional step is to ensure that the polygonal shape of the preformed electrical conductor is maintained until said conductor is surrounded by the insulating sheath.
  • the technical problem to be solved, by the object of the present invention is to propose a method of manufacturing an insulated electrical conductor of class 5 making it possible to avoid the problems of the state of the art by notably offering an easy method to implement, fast and less restrictive.
  • the method of manufacturing an insulated electrical conductor comprises one step less than the prior art.
  • the structure of the insulated electrical conductor obtained from a set of subassemblies according to the present invention has the advantage of being able to keep at least the polygonal section after the preforming step iii without specific tool to maintain it before step iv.
  • polygonal means any closed figure comprising at least one line segment, and optionally at least one curved line.
  • the polygonal cross section is a sector.
  • a sector is typically defined as a portion of the surface of a disk between two radii.
  • the subset of class 5 conductive wires is a strand or a twist.
  • Strand means an assembly of several conductive son (or in other words strands) arranged in twist in one or more separate layers.
  • twist direction of said conductive wire layers can alternate from one layer to another.
  • bending is meant a simple assembly (without separate layer) of several twisted conductive wires, preferably with the same pitch and in the same direction.
  • the conductive wires are arranged in concentric layers around a central conductive wire.
  • the rank layer "n" typically has n ⁇ 6 conductors.
  • the strands are generally composed of 7, 19, or 37 wires.
  • the twist configuration of said conductor wires of the strand or of the simple assembly of the twist may be of Sou Z type, but it may also be any other configuration well known to those skilled in the art.
  • the set of Class 5 leads are a strand strand or a twist strand.
  • Strand strand means an assembly of several strands arranged in a twist in one or more distinct layers
  • Strand means to twist an assembly of several twisted twisted in one or more separate layers.
  • twist direction of said layers of strands or twists can alternate from one layer to another.
  • twist configuration of said strand or twist layers may be helical S or Z type, but may also be any other configuration well known to those skilled in the art.
  • the strands or twists are arranged in concentric layers respectively around a central strand or a central strand.
  • the rank layer "n" typically has n ⁇ 6 strands or twists.
  • a twisting strand may comprise 7 bends of 49 conductor wires each.
  • the sets of subassemblies according to the invention whether they are for example of the strand strand or the twist strand type, have a geometric arrangement such that it advantageously makes it possible to have greater compactness and therefore greater plasticity guaranteeing the proper maintenance of the polygonal section after removal of the mechanical stress induced by step iii of preforming (deformation).
  • the set of class 5 conducting wires, before the preforming step iii has a circular cross section.
  • the insulating sheath comprises a thermoplastic and / or thermosetting polymer material.
  • the polymeric material may be chosen from an ethylene polymer or copolymer, a polyester, a fluoropolymer, a polyolefin, a polyamide, a polyimide, a polyurethane, a polyvinyl chloride or an elastomer such as an ethylene-propylene, polychloroprene or silicone resin, and a thermoplastic elastomer.
  • the set of class 5 conductive wires is twisted during the preforming step iii.
  • the figure 1 schematically represents a cross-sectional structure of a subset of strand-type class 5 conductive wires according to the present invention.
  • the figure 2 schematically shows a cross-sectional structure of a sub-assembly of class 5 conductive threads of the twist type according to the present invention.
  • the figure 3 schematically shows a structure, in cross-section, of a set of strand-like strand-type conductor wires 5 as shown in FIG. figure 1 according to the present invention.
  • the figure 4 schematically shows a cross-sectional structure of a set of twisted strand-type class 5 conductive wires as shown in FIG. figure 2 according to the present invention.
  • the figure 5 schematically shows a method of manufacturing an insulated electrical conductor according to the present invention.
  • the figure 6 schematically shows a cross-sectional structure of a preformed class 5 conductor wire assembly in accordance with the present invention.
  • the figure 7 schematically shows a structure, in cross-section, of the set of conductive wires of the figure 6 after step iv according to the present invention.
  • the figure 8 schematically shows a structure, in cross-section, of an energy cable comprising several sets of insulated conductor wires as shown in FIG. figure 7 according to the present invention.
  • the figure 1 schematically represents the cross-section of a sub-assembly or a set of strand-type conductor wires 10 having an assembly of 19 conductor wires 1, of 0.5 mm diameter each.
  • the conductive wires 1 are arranged in two concentric layers around a central conductor wire 1a.
  • the first layer 2 and the second layer 3 consist respectively of 6 and 12 conductors son.
  • the twisted configurations of the first layer 2 (rank layer “n") and second layer 3 (rank layer “n + 1") can be respectively of the S / S or S / Z or Z / S type or Z / Z.
  • the twisted configurations of the first, second and third layers can be respectively of the type S / S / Z or S / Z / / Sou S / S / S, ... etc.
  • the figure 2 schematically represents the cross-section of a sub-assembly of twisted conductor wires 11 having an assembly of 19 conductor wires 1, each of 0.5 mm diameter, helically wound (Sou Z) of the same direction and likewise not .
  • the figure 3 schematically represents the cross-section of a set of strand-type conductor wires 12 having an assembly of 19 strands 10.
  • the strands 10 are arranged in two concentric layers around a central strand 10a.
  • the first layer 2 and the second layer 3 consist respectively of 6 and 12 strands.
  • the twisted configurations of the first and second layers may be those described above.
  • the figure 4 schematically represents the cross-section of a set of strand-type conductive wires 13 having an assembly of 19 bends 11.
  • the bends 11 are arranged in two concentric layers around the central bead 11a.
  • the first layer 2 and the second layer 3 consist respectively of 6 and 12 bends.
  • the twisted configurations of the first and second layers may be those described above.
  • the figure 5 represents a method of manufacturing an insulated electrical conductor according to the present invention.
  • a set 12,13 of conductive son of circular cross section is first brought to the aid for example donor caterpillar 102 and printer 103, at a preform bench 104.
  • the preform bench 104 serves to deform said assembly 12, 13, preferably of circular cross-section, between two pressure rollers to give it the predetermined cross-section of polygonal type (step iii).
  • the two pressure rollers are rotated in synchronism with the assembly 12,13 on the line 100 of manufacture.
  • Step iii may also be carried out with other apparatus capable of deforming said set 12, 13 of class 5 conducting wires.
  • the preform bench 104 may also rotate about the longitudinal axis of the assembly 12,13 to give a helical pitch to said preformed assembly 22,23 for its assembly in a subsequent step.
  • the assembly 12, 13 of conducting wires may advantageously be preformed and twisted.
  • step iv the preformed assembly 22,23 is surrounded by an insulating sheath.
  • the insulating sheath may be extruded around said preformed assembly 22, 23 through an extruder 105.
  • an isolated assembly 32,33 is thus obtained, or in other words an insulated electrical conductor comprising the preformed assembly 22,23 covered with the insulating sheath 15 as shown in FIG. figure 7 .
  • step iv can be carried out in a discontinuous manner since, between the preforming step i and said step iv, it is not necessary to ensure the maintaining said preform, the very geometric structure of the set 12,13 conductive son to ensure the proper maintenance of its polygonal cross section.
  • the insulated electrical conductor 32, 33 may be immersed in a water bath 106 to be cooled.
  • the insulated electrical conductor 32,33 is wound around a winder 107 for storage in view, for example, of an assembly step with other insulated electrical conductors.
  • a plurality of insulated electrical conductors may be assembled to form a power cable.
  • a plurality of said insulated electrical conductors may be twisted with a predetermined pitch of helix.
  • Said envelope may consist for example of a thermoplastic polymer, halogenated or not, such as a homopolymer or copolymer of ethylene.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulated Conductors (AREA)
  • Communication Cables (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)
  • Manufacture Of Motors, Generators (AREA)

Claims (8)

  1. Verfahren zur Herstellung eines isolierten elektrischen Leiters (32,33), das die folgenden Schritte aufweist:
    i. Bilden mindestens einer Untergruppe (10, 11), die eine Vielzahl von Leitungsdrähten der Klasse 5 umfasst,
    ii. Bilden einer Gruppe (12, 13) von Leitungsdrähten der Klasse 5, die eine Vielzahl der in Schritt i gebildeten Untergruppen (10, 11) umfasst,
    iii. Vorformen der in Schritt ii erhaltenen Gruppe (12, 13), um eine vorgeformte Gruppe (22, 23) mit einem polygonalen Querschnitt zu erhalten, und
    iv. kontaktierendes Umgeben der in Schritt iii erhaltenen vorgeformten Gruppe (22, 23) mit einer Isolierhülle (15), um den isolierten elektrischen Leiter (32, 33) zu erhalten,
    wobei Schritt iv keinen vorherigen Schritt des Haltens der vorgeformten Gruppe mit polygonalem Querschnitt umfasst.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Schritt i der Bildung der Untergruppe darin besteht, die Vielzahl Leitungsdrähte der Klasse 5 zu verdrillen.
  3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Untergruppe Leitungsdrähte der Klasse 5 eine Litze (10) oder eine Bündellitze (11) ist.
  4. Verfahren nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Gruppe Leitungsdrähte der Klasse 5 eine Litzenlitzen (12) oder eine Bündellitzenlitze (13) ist.
  5. Verfahren nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der polygonale Querschnitt ein Sektor ist.
  6. Verfahren nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Gruppe (12,13) Leitungsdrähte der Klasse 5 vor dem Schritt des Vorformens iii einen kreisförmigen Querschnitt hat.
  7. Verfahren nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Isolierhülle (15) ein thermoplastisches und/oder duroplastisches Polymermaterial umfasst, wobei das Material vorzugsweise ein Polymer oder ein Ethylen-Copolymer ist.
  8. Verfahren nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Gruppe (12, 13) Leitungsdrähte der Klasse 5 beim Schritt des Vorformens iii verdrillt wird.
EP08154662.4A 2007-04-26 2008-04-17 Verfahren zur Herstellung eines isolierten elektrischen Leiters der Klasse 5 Active EP1986199B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0754721A FR2915621B1 (fr) 2007-04-26 2007-04-26 Procede de fabrication d'un conducteur electrique isole de classe 5

Publications (3)

Publication Number Publication Date
EP1986199A2 EP1986199A2 (de) 2008-10-29
EP1986199A3 EP1986199A3 (de) 2012-02-29
EP1986199B1 true EP1986199B1 (de) 2014-07-02

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EP08154662.4A Active EP1986199B1 (de) 2007-04-26 2008-04-17 Verfahren zur Herstellung eines isolierten elektrischen Leiters der Klasse 5

Country Status (4)

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EP (1) EP1986199B1 (de)
JP (1) JP5301870B2 (de)
KR (1) KR101436935B1 (de)
FR (1) FR2915621B1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105655044B (zh) * 2014-08-27 2017-10-27 陕西永光电力电缆制造有限公司 一种电力用电缆
DE102016004552A1 (de) * 2016-04-15 2017-10-19 Waskönig+Walter Kabel-Werk GmbH u. Co. KG Kabel, insbesondere Hochleistungs-Energiekabel
KR102001961B1 (ko) * 2016-08-11 2019-07-19 넥쌍 유연성 섹터 도체를 갖는 전력 케이블
KR20230140848A (ko) * 2022-03-30 2023-10-10 엘에스전선 주식회사 음향 케이블용 도체 및 이를 포함하는 음향 케이블

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5215637A (en) * 1975-07-22 1977-02-05 Hitachi Cable Method of twisting core
JPH01175110A (ja) * 1987-12-28 1989-07-11 Fujikura Ltd 架空送電線
JPH0660733A (ja) * 1992-08-10 1994-03-04 Riken Densen Kk リッツ線およびその製造方法
JP3299327B2 (ja) * 1993-02-26 2002-07-08 日立電線株式会社 リッツ線
DE19549406C2 (de) * 1995-06-22 1997-12-11 Alcatel Kabel Ag Verfahren zur Herstellung eines Sektorleiters für elektrische Energiekabel
DE19522627A1 (de) * 1995-06-22 1997-01-02 Alcatel Kabel Ag Verfahren zur Herstellung eines Leiters für elektrische Energiekabel
JP2001043740A (ja) * 1999-07-28 2001-02-16 Fujikura Ltd 架空送電線
JP2003303515A (ja) * 2002-04-09 2003-10-24 Furukawa Electric Co Ltd:The 通電用複合撚線導体
JP2003331671A (ja) * 2002-05-16 2003-11-21 Furukawa Electric Co Ltd:The 分割導体の製造方法
PT1418595E (pt) * 2003-03-28 2010-07-19 Grupo General Cable Sist S S A CONDUTOR METáLICO E MéTODO DE FABRICO DO MESMO
JP4804860B2 (ja) * 2004-10-27 2011-11-02 古河電気工業株式会社 複合撚線導体
JP4866545B2 (ja) * 2004-12-03 2012-02-01 株式会社フジクラ ケーブルおよび撚合せ型ケーブル

Also Published As

Publication number Publication date
JP2008277295A (ja) 2008-11-13
FR2915621B1 (fr) 2009-07-17
KR20080096445A (ko) 2008-10-30
FR2915621A1 (fr) 2008-10-31
EP1986199A3 (de) 2012-02-29
JP5301870B2 (ja) 2013-09-25
KR101436935B1 (ko) 2014-09-02
EP1986199A2 (de) 2008-10-29

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