EP1986199A2 - Method of producing a class 5 insulated electric conductor - Google Patents

Method of producing a class 5 insulated electric conductor Download PDF

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Publication number
EP1986199A2
EP1986199A2 EP08154662A EP08154662A EP1986199A2 EP 1986199 A2 EP1986199 A2 EP 1986199A2 EP 08154662 A EP08154662 A EP 08154662A EP 08154662 A EP08154662 A EP 08154662A EP 1986199 A2 EP1986199 A2 EP 1986199A2
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EP
European Patent Office
Prior art keywords
assembly
class
strand
section
wires
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Granted
Application number
EP08154662A
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German (de)
French (fr)
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EP1986199B1 (en
EP1986199A3 (en
Inventor
Alain Clertant
Didier Cumin
Eric Joyeux
Alain Maziere
Pascal Poupon
Thierry Seux
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Nexans SA
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Nexans SA
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Publication of EP1986199A2 publication Critical patent/EP1986199A2/en
Publication of EP1986199A3 publication Critical patent/EP1986199A3/en
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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 the polygonal section identical after the preforming step i, without any specific tool to maintain it. before step ii.
  • 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 conductive wire layers of the strand or the simple assembly of the twist may be helical type S or Z, but it may also be any other configuration well known to those skilled in the art.
  • the set of class 5 conductive wires is 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 i of preforming (deformation).
  • the set of class 5 conductive wires, before the preforming step i 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 lead wires is twisted during the preforming step i.
  • Another object of the present invention is an isolated electrical conductor obtained by said method.
  • Another object of the present invention is an energy cable comprising at least said isolated electrical conductor.
  • a plurality of insulated electrical conductors form a circular cross-section energy cable.
  • 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 ii 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 subassembly 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 S / S / Z or S / Z / S or S / S / S, ... etc.
  • the figure 2 schematically represents the cross-section of a subset of twisted conductor wires 11 having an assembly of 19 conductor wires 1, each 0.5 mm in diameter, helically wound (S or 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.
  • 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 i).
  • the two pressure rollers are rotated in synchronism with the assembly 12,13 on the line 100 of manufacture.
  • Step i can also be carried out with other apparatuses 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 set 12, 13 of conductive wires can be advantageously preformed and twisted.
  • step ii 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 ii can be carried out in a discontinuous manner since, between the preforming step i and said step ii, 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 helix pitch.
  • Said envelope may consist for example of a thermoplastic polymer, halogenated or not, such as a homopolymer or copolymer of ethylene.
  • the present invention is not limited to the examples which have just been described and relates in its generality to all the processes, the insulated electrical conductors and the energy cables that can be envisaged on the basis of the general indications provided in the presentation of the invention. invention.

Abstract

The method involves performing class 5 strand-by-strand type conductive wire assembly and twisted strand type wire assembly for obtaining preformed assemblies with a polygonal transversal section i.e. sector, where assemblies include strands and twists. The preformed assemblies are surrounded with an insulating sleeve for obtaining insulated electrical conductors (32, 33) without requiring preliminary process to maintain the preformed assemblies.

Description

La présente invention se rapporte à un procédé de fabrication d'un conducteur électrique isolé, à un conducteur électrique isolé obtenu par ledit procédé ainsi qu'à un câble d'énergie comprenant ledit conducteur électrique.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.

Elle s'applique typiquement, mais non exclusivement, aux câbles d'énergie à forte section dans le domaine maritime, notamment dans les bateaux.It typically, but not exclusively, applies to high-section energy cables in the maritime domain, especially in ships.

Le document EP-1418 595 décrit un câble électrique de section transversale circulaire comprenant une pluralité de conducteurs électriques isolés les uns par rapport aux autres, chaque conducteur électrique présentant une section transversale polygonale.The document 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.

Le procédé de fabrication d'un tel conducteur électrique isolé comporte plusieurs étapes.The method of manufacturing such an isolated electrical conductor comprises several steps.

Tout d'abord, une multitude de fils conducteurs de classe 5, typiquement en cuivre ou en aluminium, est assemblée par compression pour former un conducteur électrique de section transversale circulaire.First, a multitude of Class 5 lead wires, typically copper or aluminum, are compression-bonded together to form an electrical conductor of circular cross-section.

La classe 5 concerne les fils conducteurs ayant un diamètre respectif d'au plus 0,61 mm conformément à la norme IEC-60228.Class 5 relates to conductor wires having a respective diameter of not more than 0.61 mm in accordance with IEC-60228.

Puis, le conducteur électrique de section transversale circulaire est préformé en un conducteur électrique de section transversale polygonale, notamment en forme de secteur.Then, the electrical conductor of circular cross section is preformed into an electrical conductor of polygonal cross section, in particular sector-shaped.

Enfin, une gaine isolante est extrudée autour du conducteur électrique préformé et permet de maintenir la forme polygonale du conducteur électrique préformé.Finally, an insulating sheath is extruded around the preformed electrical conductor and maintains the polygonal shape of the preformed electrical conductor.

Toutefois, ce type de procédé présente l'inconvénient de comprendre en outre une étape supplémentaire nécessaire pour pouvoir extruder la gaine isolante sur le conducteur électrique préformé.However, this type of method has the disadvantage of further comprising an additional step necessary to extrude the insulating sheath on the preformed electrical conductor.

En effet, cette étape supplémentaire consiste à s'assurer que la forme polygonale du conducteur électrique préformé est maintenue jusqu'à ce que ledit conducteur soit entouré par la gaine isolante.Indeed, 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.

Le problème technique à résoudre, par l'objet de la présente invention, est de proposer un procédé de fabrication d'un conducteur électrique isolé de classe 5 permettant d'éviter les problèmes de l'état de la technique en offrant notamment un procédé facile à mettre en oeuvre, rapide et moins contraignant.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.

La solution du problème technique posé consiste, selon la présente invention, en ce que le procédé de fabrication d'un conducteur électrique isolé comporte les étapes suivantes :

  1. i. préformer un ensemble de fils conducteurs de classe 5 comprenant une pluralité de sous-ensembles de tels fils conducteurs, chacun desdits sous-ensembles comprenant une pluralité de fils conducteurs de classe 5, pour obtenir un ensemble préformé avec une section transversale polygonale, puis
  2. ii. entourer avec contact ledit ensemble préformé d'une gaine isolante, sans étape préalable de maintien de l'ensemble préformé de section transversale polygonale, pour obtenir le conducteur électrique isolé.
The solution of the technical problem posed consists, according to the present invention, in that the method of manufacturing an insulated electrical conductor comprises the following steps:
  1. i. preforming a set of class 5 lead wires comprising a plurality of sub-assemblies of such lead wires, each of said subassemblies comprising a plurality of class 5 lead wires, to obtain a preformed assembly with a polygonal cross-section, and then
  2. ii. contacting said pre-formed assembly with an insulating sheath without any prior step of holding the preformed polygonal cross-section assembly to obtain the isolated electrical conductor.

Grâce à l'invention, le procédé de fabrication d'un conducteur électrique isolé comporte une étape de moins que l'art antérieur.Thanks to the invention, the method of manufacturing an insulated electrical conductor comprises one step less than the prior art.

La structure du conducteur électrique isolé obtenu à partir d'un ensemble de sous-ensembles conforme à la présente invention présente l'avantage de pouvoir garder à l'identique la section polygonale après l'étape de préformage i, sans outil spécifique pour la maintenir avant l'étape ii.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 the polygonal section identical after the preforming step i, without any specific tool to maintain it. before step ii.

On entend par « polygonale » toute figure fermée comportant au moins un segment de droite, et optionnellement au moins une ligne courbe.The term "polygonal" means any closed figure comprising at least one line segment, and optionally at least one curved line.

De préférence, la section transversale polygonale est un secteur. Un secteur est typiquement défini comme une portion de la surface d'un disque comprise entre deux rayons.Preferably, the polygonal cross section is a sector. A sector is typically defined as a portion of the surface of a disk between two radii.

Dans un mode de réalisation particulier, le sous-ensemble de fils conducteurs de classe 5 est un toron ou un tordon.In a particular embodiment, the subset of class 5 conductive wires is a strand or a twist.

On entend par toron un assemblage de plusieurs fils conducteurs (ou en d'autres termes brins) disposés en torsade en une ou plusieurs couches distinctes.Strand means an assembly of several conductive son (or in other words strands) arranged in twist in one or more separate layers.

Plus particulièrement, le sens de torsade desdites couches de fils conducteurs peut alterner d'une couche à l'autre.More particularly, the twist direction of said conductive wire layers can alternate from one layer to another.

On entend par tordon un assemblage simple (sans couche distincte) de plusieurs fils conducteurs torsadés, de préférence avec un même pas et dans le même sens.By bending is meant a simple assembly (without separate layer) of several twisted conductive wires, preferably with the same pitch and in the same direction.

Dans un mode de réalisation préféré, les fils conducteurs sont rangés en couches concentriques autour d'un fil conducteur central. La couche de rang "n" possède typiquement n x 6 fils conducteurs. Les torons sont généralement composés de 7, 19, ou 37 fils conducteurs.In a preferred embodiment, 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.

La configuration en torsade desdites couches de fils conducteurs du toron ou de l'assemblage simple du tordon peut être en hélice du type S ou Z, mais elle peut également être toute autre configuration bien connue de l'homme du métier.The twist configuration of said conductive wire layers of the strand or the simple assembly of the twist may be helical type S or Z, but it may also be any other configuration well known to those skilled in the art.

Dans un autre mode de réalisation particulier, l'ensemble de fils conducteurs de classe 5 est un toron de torons ou un toron de tordons.In another particular embodiment, the set of class 5 conductive wires is a strand strand or a twist strand.

On entend par toron de torons un assemblage de plusieurs torons disposés en torsade en une ou plusieurs couches distinctesStrand strand means an assembly of several strands arranged in a twist in one or more distinct layers

On entend par toron de tordons un assemblage de plusieurs tordons disposés en torsade en une ou plusieurs couches distinctes.Strand means to twist an assembly of several twisted twisted in one or more separate layers.

Plus particulièrement, le sens de torsade desdites couches de torons ou de tordons peut alterner d'une couche à l'autre.More particularly, the twist direction of said layers of strands or twists can alternate from one layer to another.

La configuration en torsade desdites couches de torons ou de tordons peut être en hélice du type S ou Z, mais elle peut également être toute autre configuration bien connue de l'homme du métier.The 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.

Dans un mode de réalisation préféré dudit toron de torons ou dudit toron de tordons, les torons ou les tordons sont rangés en couches concentriques respectivement autour d'un toron central ou d'un tordon central. La couche de rang "n" possède typiquement n x 6 torons ou tordons.In a preferred embodiment of said strand strand or twist strand, 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 titre d'exemple, un toron de tordons peut comporter 7 tordons de 49 fils conducteurs chacun.By way of example, a twisting strand may comprise 7 bends of 49 conductor wires each.

Ainsi, les ensembles de sous-ensembles conformes à l'invention, qu'ils soient par exemple du type toron de torons ou toron de tordons, présentent un arrangement géométrique tel qu'il permet avantageusement d'avoir une plus grande compacité et donc une plus grande plasticité garantissant le maintien propre de la section polygonale après retrait de la contrainte mécanique induite par l'étape i de préformage (déformation).Thus, 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 i of preforming (deformation).

Selon une caractéristique préférée de l'invention, l'ensemble de fils conducteurs de classe 5, avant l'étape de préformage i, a une section transversale circulaire.According to a preferred feature of the invention, the set of class 5 conductive wires, before the preforming step i, has a circular cross section.

Dans un mode de réalisation particulier, la gaine isolante comprend un matériau polymère thermoplastique et/ou thermodurcissable.In a particular embodiment, the insulating sheath comprises a thermoplastic and / or thermosetting polymer material.

A titre d'exemple, le matériau polymère peut être choisi parmi un polymère ou copolymère d'éthylène, un polyester, un polymère fluoré, une polyoléfine, un polyamide, un polyimide, un polyuréthane, un chlorure de polyvinyle, un élastomère tel qu'une résine d'éthylène-propylène, de polychloroprène ou de silicone, et un élastomère thermoplastique.By way of example, 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.

Dans un mode de réalisation particulièrement avantageux, l'ensemble de fils conducteurs de classe 5 est torsadé pendant l'étape de préformage i.In a particularly advantageous embodiment, the set of class 5 lead wires is twisted during the preforming step i.

Un autre objet de la présente invention est un conducteur électrique isolé obtenu par ledit procédé.Another object of the present invention is an isolated electrical conductor obtained by said method.

Un autre objet de la présente invention est un câble d'énergie comprenant au moins ledit conducteur électrique isolé.Another object of the present invention is an energy cable comprising at least said isolated electrical conductor.

Dans un mode de réalisation particulièrement préféré, une pluralité de conducteurs électriques isolés forme un câble d'énergie de section transversale circulaire.In a particularly preferred embodiment, a plurality of insulated electrical conductors form a circular cross-section energy cable.

D'autres caractéristiques et avantages de la présente invention apparaîtront à la lumière des exemples qui vont suivre en référence aux figures annotées, lesdits exemples et figures étant donnés à titre illustratif et nullement limitatif.Other features and advantages of the present invention will appear in light of the examples which follow with reference to the annotated figures, said examples and figures being given for illustrative and not limiting.

La figure 1 représente de manière schématique une structure, en coupe transversale, d'un sous-ensemble de fils conducteurs de classe 5 de type toron conforme à la présente invention.The figure 1 schematically represents a cross-sectional structure of a subset of strand-type class 5 conductive wires according to the present invention.

La figure 2 représente de manière schématique une structure, en coupe transversale, d'un sous-ensemble de fils conducteurs de classe 5 de type tordon conforme à la présente 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.

La figure 3 représente de manière schématique une structure, en coupe transversale, d'un ensemble de fils conducteurs de classe 5 de type toron de torons tels que représentés sur la figure 1, conforme à la présente 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.

La figure 4 représente de manière schématique une structure, en coupe transversale, d'un ensemble de fils conducteurs de classe 5 de type toron de tordons tels que représentés sur la figure 2, conforme à la présente 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.

La figure 5 représente de manière schématique un procédé de fabrication d'un conducteur électrique isolé conforme à la présente invention.The figure 5 schematically shows a method of manufacturing an insulated electrical conductor according to the present invention.

La figure 6 représente de manière schématique une structure, en coupe transversale, d'un ensemble de fils conducteurs de classe 5 préformé conforme à la présente invention.The figure 6 schematically shows a cross-sectional structure of a preformed class 5 conductor wire assembly in accordance with the present invention.

La figure 7 représente de manière schématique une structure, en coupe transversale, de l'ensemble de fils conducteurs de la figure 6 après l'étape ii conforme à la présente invention.The figure 7 schematically shows a structure, in cross-section, of the set of conductive wires of the figure 6 after step ii according to the present invention.

La figure 8 représente de manière schématique une structure, en coupe transversale, d'un câble d'énergie comprenant plusieurs ensembles de fils conducteurs isolés tels que représenté sur la figure 7, conforme à la présente 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.

Pour des raisons de clarté, les mêmes éléments ont été désignés par des références identiques. De même, seuls les éléments essentiels pour la compréhension de l'invention ont été représentés de manière schématique, et ceci sans respect de l'échelle.For the sake of clarity, the same elements have been designated by identical references. Similarly, only the essential elements for understanding the invention have been shown schematically, and this without respect of the scale.

La figure 1 représente schématiquement la coupe transversale d'un sous-ensemble ou d'un ensemble de fils conducteurs de type toron 10 comportant un assemblage de 19 fils conducteurs 1, de 0,5 mm de diamètre chacun.The figure 1 schematically represents the cross-section of a subassembly or a set of strand-type conductor wires 10 having an assembly of 19 conductor wires 1, of 0.5 mm diameter each.

Les fils conducteurs 1 sont rangés en 2 couches concentriques autour d'un fil conducteur central 1a. La première couche 2 et la deuxième couche 3 se composent respectivement de 6 et 12 fils conducteurs.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.

Les configurations en torsade de la première couche 2 (couche de rang "n") et de la deuxième couche 3 (couche de rang "n+1") peuvent être respectivement du type S / S ou S / Z ou Z / S ou Z / Z.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.

Bien entendu, lorsque les fils conducteurs sont rangés en plus de deux couches, plusieurs combinaisons de configuration en torsade sont possibles.Of course, when the conductive wires are stored in more than two layers, several combinations of twist configuration are possible.

Par exemple, lorsque les fils conducteurs sont rangés en trois couches, (non représenté), les configurations en torsade des première, deuxième et troisième couches peuvent être respectivement du type S / S / Z ou S / Z / S ou S / S / S, ... etc.For example, when the conductive wires are arranged in three layers, (not shown), the twisted configurations of the first, second and third layers can be respectively S / S / Z or S / Z / S or S / S / S, ... etc.

La figure 2 représente schématiquement la coupe transversale d'un sous-ensemble de fils conducteurs de type tordon 11 comportant un assemblage de 19 fils conducteurs 1, de 0,5 mm de diamètre chacun, enroulés en hélice (S ou Z) de même sens et de même pas.The figure 2 schematically represents the cross-section of a subset of twisted conductor wires 11 having an assembly of 19 conductor wires 1, each 0.5 mm in diameter, helically wound (S or Z) of the same direction and likewise not.

La figure 3 représente schématiquement la coupe transversale d'un ensemble de fils conducteurs de type toron de torons 12 comportant un assemblage de 19 torons 10.The figure 3 schematically represents the cross-section of a set of strand-type conductor wires 12 having an assembly of 19 strands 10.

Les torons 10 sont rangés en 2 couches concentriques autour d'un toron central 10a. La première couche 2 et la deuxième couche 3 se composent respectivement de 6 et 12 torons.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.

Les configurations en torsade des première et deuxième couches peuvent être celles décrites précédemment.The twisted configurations of the first and second layers may be those described above.

La figure 4 représente schématiquement la coupe transversale d'un ensemble de fils conducteurs de type toron de tordons 13 comportant un assemblage de 19 tordons 11.The figure 4 schematically represents the cross-section of a set of strand-type conductive wires 13 having an assembly of 19 bends 11.

Les tordons 11 sont rangés en 2 couches concentriques autour du tordon central 11a. La première couche 2 et la deuxième couche 3 se composent respectivement de 6 et 12 tordons.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.

Les configurations en torsade des première et deuxième couches peuvent être celles décrites précédemment.The twisted configurations of the first and second layers may be those described above.

La figure 5 représente un procédé de fabrication d'un conducteur électrique isolé conforme à la présente invention.The figure 5 represents a method of manufacturing an insulated electrical conductor according to the present invention.

Sur une même ligne 100 de fabrication, un ensemble 12,13 de fils conducteurs de section transversale circulaire, tel que représenté sur les figures 1, 3 et 4, préalablement stocké sur un dérouleur 101, est tout d'abord amené, à l'aide par exemple de chenilles donneuse 102 et tireuse 103, au niveau d'un banc de préforme 104.On a same line 100 of manufacture, a set 12,13 of conductive son of circular cross section, as represented on the figures 1 , 3 and 4 previously stored on an unwinder 101, is first brought to the aid for example donor caterpillar 102 and printer 103, at a preform bench 104.

Le banc de préforme 104 permet de déformer ledit ensemble 12,13, de préférence de section transversale circulaire, entre deux galets presseurs pour lui donner la section transversale prédéterminée de type polygonale (étape i).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 i).

Les deux galets presseurs, généralement en métal, sont entraînés en rotation en synchronisme avec l'ensemble 12,13 sur la ligne 100 de fabrication.The two pressure rollers, generally metal, are rotated in synchronism with the assembly 12,13 on the line 100 of manufacture.

L'étape i peut également être effectué avec d'autres appareillages aptes à déformer ledit ensemble 12,13 de fils conducteurs de classe 5.Step i can also be carried out with other apparatuses capable of deforming said set 12, 13 of class 5 conducting wires.

A la sortie du banc de préforme 104, on peut obtenir un ensemble préformé 22,23 tel que représenté sur la figure 6, l'ensemble 12,13 initialement de section transversale circulaire étant déformé en un ensemble préformé 22,23 de section transversale sectorielle.At the exit of the preform bench 104, it is possible to obtain a preformed assembly 22, 23 as shown in FIG. figure 6 , the assembly 12,13 initially of circular cross section being deformed into a preformed assembly 22,23 of sectorial cross-section.

Le banc de préforme 104 peut également tourner autour de l'axe longitudinal de l'ensemble 12,13 pour donner un pas d'hélice audit ensemble préformé 22,23 en vu de son assemblage dans une étape ultérieure.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.

En d'autres termes, durant l'étape i de préforme, l'ensemble 12,13 de fils conducteurs peut être avantageusement préformé et torsadé.In other words, during the preform step i, the set 12, 13 of conductive wires can be advantageously preformed and twisted.

Ensuite, de manière continue, l'ensemble préformé 22,23 est entouré d'une gaine isolante (étape ii).Then, continuously, the preformed assembly 22,23 is surrounded by an insulating sheath (step ii).

Typiquement, la gaine isolante peut être extrudée autour dudit ensemble préformé 22,23 en traversant une extrudeuse 105.Typically, the insulating sheath may be extruded around said preformed assembly 22, 23 through an extruder 105.

A la sortie de l'extrudeuse 105, on obtient ainsi un ensemble isolé 32,33, ou en d'autres termes un conducteur électrique isolé, comportant l'ensemble préformé 22,23 recouvert de la gaine isolante 15 tel que représenté sur la figure 7.At the outlet of the 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 .

Bien entendu, l'étape ii peut être réalisée en discontinu puisque, entre l'étape de préformage i et ladite étape ii, il n'est pas nécessaire d'assurer le maintien de ladite préforme, la structure géométrique même de l'ensemble 12,13 de fils conducteurs permettant d'assurer le propre maintien de sa section transversale polygonale.Of course, the step ii can be carried out in a discontinuous manner since, between the preforming step i and said step ii, 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.

Puis, une fois la gaine isolante 15 extrudée autour de l'ensemble préformé 22,23, le conducteur électrique isolé 32,33 peut être plongé dans un bain d'eau 106 afin d'être refroidi.Then, once the insulating sheath 15 is extruded around the preformed assembly 22, 23, the insulated electrical conductor 32, 33 may be immersed in a water bath 106 to be cooled.

Enfin, le conducteur électrique isolé 32,33, est enroulé autour d'un enrouleur 107 pour le stocker en vue, par exemple, d'une étape d'assemblage avec d'autres conducteurs électriques isolés.Finally, 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.

Dans une étape ultérieure, plusieurs conducteurs électriques isolés peuvent être assemblés pour former un câble d'énergie.In a subsequent step, a plurality of insulated electrical conductors may be assembled to form a power cable.

Lors de cette étape d'assemblage, une pluralité desdits conducteurs électriques isolés peut être torsadée avec un pas d'hélice prédéterminé.During this assembly step, a plurality of said insulated electrical conductors may be twisted with a predetermined helix pitch.

A titre d'exemple et comme représenté sur la figure 8, on peut assembler trois conducteurs électriques isolés 32,33 de section transversale sectorielle pour former un câble d'énergie 40 de section transversale circulaire, l'ensemble des trois conducteurs électriques étant entouré d'une enveloppe 41 de maintien et/ou de protection bien connue de l'homme du métier.For example and as shown on the figure 8 , it is possible to assemble three insulated electrical conductors 32, 33 of sectorial cross-section to form an energy cable 40 of circular cross-section, all of the three electrical conductors being surrounded by a casing 41 for holding and / or protecting well. known to those skilled in the art.

Ladite enveloppe peut être constituée par exemple d'un polymère thermoplastique, halogénée ou non, tel qu'un homopolymère ou copolymère d'éthylène.Said envelope may consist for example of a thermoplastic polymer, halogenated or not, such as a homopolymer or copolymer of ethylene.

La présente invention n'est pas limitée aux exemples qui viennent d'être décrits et porte dans sa généralité sur tous les procédés, les conducteurs électriques isolés et les câbles d'énergie envisageables à partir des indications générales fournies dans l'exposé de l'invention.The present invention is not limited to the examples which have just been described and relates in its generality to all the processes, the insulated electrical conductors and the energy cables that can be envisaged on the basis of the general indications provided in the presentation of the invention. invention.

Claims (10)

Procédé de fabrication d'un conducteur électrique isolé (32,33) comportant les étapes suivantes : i. préformer un ensemble (12,13) de fils conducteurs de classe 5 comprenant une pluralité de sous-ensembles (10,11) de tels fils conducteurs, chacun desdits sous-ensembles (10,11) comprenant une pluralité de fils conducteurs de classe 5, pour obtenir un ensemble préformé (22,23) avec une section transversale polygonale, puis ii. entourer avec contact ledit ensemble préformé (22,23) d'une gaine isolante (15), sans étape préalable de maintien de l'ensemble préformé de section transversale polygonale, pour obtenir le conducteur électrique isolé (32,33). A method of manufacturing an insulated electrical conductor (32,33) comprising the steps of: i. preforming an assembly (12, 13) of class 5 conductor wires comprising a plurality of subassemblies (10, 11) of such conductor wires, each of said subassemblies (10, 11) comprising a plurality of class 5 conducting wires , to obtain a preformed assembly (22,23) with a polygonal cross-section, then ii. contacting said pre-formed assembly (22, 23) with an insulating sheath (15) without any prior step of holding the preformed polygonal cross-section assembly to obtain the insulated electrical conductor (32, 33). Procédé selon la revendication 1, caractérisé en ce que le sous-ensemble de fils conducteurs de classe 5 est un toron (10) ou un tordon (11).Method according to claim 1, characterized in that the subset of class 5 conductive wires is a strand (10) or a twist (11). Procédé selon la revendication 1 ou 2, caractérisé en ce que l'ensemble de fils conducteurs de classe 5 est un toron de torons (12) ou un toron de tordons (13).Method according to claim 1 or 2, characterized in that the set of class 5 conducting wires is a strand strand (12) or a strand of twists (13). Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la section transversale polygonale est un secteur.Method according to one of the preceding claims, characterized in that the polygonal cross-section is a sector. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'ensemble (12,13) de fils conducteurs de classe 5, avant l'étape de préformage i, a une section transversale circulaire.Method according to any one of the preceding claims, characterized in that the assembly (12, 13) of class 5 conductive wires, before the preforming step i, has a circular cross section. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la gaine isolante (15) comprend un matériau polymère thermoplastique et/ou thermodurcissable, de préférence le matériau est un polymère ou copolymère d'éthylène.Method according to any one of the preceding claims, characterized in that the insulating sheath (15) comprises a thermoplastic and / or thermosetting polymer material, preferably the material is an ethylene polymer or copolymer. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'ensemble (12,13) de fils conducteurs de classe 5 est torsadé pendant l'étape de préformage i.Method according to any one of the preceding claims, characterized in that the assembly (12, 13) of class 5 conductive wires is twisted during the preforming step i. Conducteur électrique isolé (32,33) obtenu par le procédé tel que défini aux revendications 1 à 7.Isolated electric conductor (32,33) obtained by the process as defined in claims 1 to 7. Câble d'énergie (40) comprenant au moins un conducteur électrique isolé (32,33) tel que défini à la revendication 8.An energy cable (40) comprising at least one insulated electrical conductor (32,33) as defined in claim 8. Câble d'énergie selon la revendication 9, caractérisé en ce qu'une pluralité de conducteurs électriques isolés (32,33) forme un câble d'énergie de section transversale circulaire.Power cable according to claim 9, characterized in that a plurality of insulated electrical conductors (32,33) form a circular cross-section energy cable.
EP08154662.4A 2007-04-26 2008-04-17 Method of producing a class 5 insulated electric conductor Active EP1986199B1 (en)

Applications Claiming Priority (1)

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FR0754721A FR2915621B1 (en) 2007-04-26 2007-04-26 METHOD FOR MANUFACTURING A CLASS 5 ISOLATED ELECTRICAL CONDUCTOR

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EP1986199A3 EP1986199A3 (en) 2012-02-29
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DE102016004552A1 (en) * 2016-04-15 2017-10-19 Waskönig+Walter Kabel-Werk GmbH u. Co. KG Cables, in particular high-performance power cables

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FR2915621B1 (en) 2009-07-17
EP1986199B1 (en) 2014-07-02
JP2008277295A (en) 2008-11-13
FR2915621A1 (en) 2008-10-31
KR101436935B1 (en) 2014-09-02
KR20080096445A (en) 2008-10-30
EP1986199A3 (en) 2012-02-29
JP5301870B2 (en) 2013-09-25

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