EP3511951B1 - Conductor for overhead transport of high-voltage electric power - Google Patents

Conductor for overhead transport of high-voltage electric power Download PDF

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Publication number
EP3511951B1
EP3511951B1 EP18212344.8A EP18212344A EP3511951B1 EP 3511951 B1 EP3511951 B1 EP 3511951B1 EP 18212344 A EP18212344 A EP 18212344A EP 3511951 B1 EP3511951 B1 EP 3511951B1
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EP
European Patent Office
Prior art keywords
wires
conductor
conductor according
solid
aluminum
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EP18212344.8A
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German (de)
French (fr)
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EP3511951A1 (en
Inventor
Stéphane Morice
Maxime DELBOVE
Dionisio Rodriguez
Dominique PELOSO
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Nexans SA
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Nexans SA
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
    • H01B5/08—Several wires or the like stranded in the form of a rope
    • H01B5/10—Several wires or the like stranded in the form of a rope stranded around a space, insulating material, or dissimilar conducting material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
    • H01B5/002—Auxiliary arrangements
    • H01B5/004—Auxiliary arrangements for protection against corona

Definitions

  • the invention relates to a high voltage overhead electric power transmission conductor.
  • the document CN 203 311 918 U describes a high-voltage overhead electrical power transmission conductor comprising a central group of aluminum-based composite material tubes and an outer layer of solid conductor wires.
  • the patent document CN 203520993 U describes a high voltage aerial electrical power transmission conductor comprising a central group of stranded aluminum tubes surrounded by layers of solid aluminum conductor wires also stranded.
  • this central group of aluminum tubes makes it possible to obtain a conductor of relatively large diameter and therefore to avoid the corona effect, also called corona effect, capable of generating audible noise, when this conductor is installed and under tension, this type of driver poses the following technical problem.
  • This known conductor has very limited resistance to crimping connection sleeves, the tubes of the central group having a strong tendency to deform.
  • the invention solves this problem by proposing a high voltage overhead electric power transmission conductor having a transverse resistance ensuring good resistance to the crimping of connection sleeves.
  • the invention relates to a high-voltage aerial electrical power transmission conductor comprising a central group comprising, in at least one internal layer, tubular metal wires around a central rod, this central group being surrounded by at least one external layer of solid conductor wires, said layer internal also comprising at least one solid wire, characterized that the conductive wires of the said outer layer are of smaller diameter than that of the wires of the said inner layer.
  • the diameter of the conductor is increased without a significant increase in its weight, which is important, because this type of overhead conductor is installed on pylons and the mechanical reinforcement of these pylons is complex and expensive.
  • the reduction in the diameter of the wires of the outer layer compared to the diameter of the wires of the inner layer makes it possible to reduce the noise generated by the corona effect, emitted by the line in operation, by limiting the peak effect the cause of air ionization and noise.
  • the invention also makes it possible to obtain a conductor which can work at high temperature and guarantees a good lifetime.
  • said internal layer comprises at least two solid threads.
  • Said two solid yarns are preferably diametrically opposed in said internal layer.
  • said solid wire(s) is (are) of the same external diameter as said tubular wires.
  • said solid wire(s) is (are) metallic.
  • said wires are made of aluminum or aluminum alloy.
  • Aluminum can be hard or annealed.
  • Said central rod is preferably made of fibers embedded in a resin.
  • the conductor has, thanks to this type of composite rod, a particularly high mechanical strength, allowing installation on relatively distant pylons.
  • the central rod can also be a rod made of steel wires or aluminum or aluminum alloy wires.
  • Said central rod advantageously consists of carbon fibers embedded in an epoxy resin.
  • Said rod advantageously comprises a coating layer of aluminum or aluminum alloy.
  • All wires are preferably stranded.
  • the single figure is a cross-sectional view of a high-voltage overhead electrical power transmission conductor according to the invention.
  • a high voltage aerial electrical power transmission conductor comprises a central group 1 comprising in one or more internal layer(s) tubular metal wires 1A, preferably made of aluminum or aluminum alloy, and also at least one solid wire 1D of the same outer diameter, around a central rod 1B and this central group is surrounded by at least one outer layer of solid conductor wires 2, preferably made of aluminum or aluminum alloy.
  • the inner layer comprises at least two solid wires 2A of metal, and preferably of aluminum or aluminum alloy, diametrically opposed in the inner layer. A good resistance to transverse compression is thus obtained.
  • All the wires are stranded to form the conductor.
  • the central rod 1B consists of carbon fibers embedded, preferably by pultrusion, in an epoxy resin and comprises an aluminum layer 1E of aluminum or aluminum alloy coating.
  • the conductive wires 2 of the outer layer have a smaller diameter than that of the wires 1A, 1D of the inner layer.

Description

L'invention concerne un conducteur de transport d'énergie électrique aérien haute tension.The invention relates to a high voltage overhead electric power transmission conductor.

Le document CN 203 311 918 U décrit un conducteur de transport d'énergie électrique aérien haute tension comportant un groupe central de tubes en matériau composite à base d'aluminium et une couche extérieure de fils conducteurs pleins.The document CN 203 311 918 U describes a high-voltage overhead electrical power transmission conductor comprising a central group of aluminum-based composite material tubes and an outer layer of solid conductor wires.

Le document de brevet CN 203520993 U décrit un conducteur de transport d'énergie électrique aérien haute tension comportant un groupe central de tubes en aluminium toronnés entouré de couches de fils conducteurs pleins en aluminium également toronnés.The patent document CN 203520993 U describes a high voltage aerial electrical power transmission conductor comprising a central group of stranded aluminum tubes surrounded by layers of solid aluminum conductor wires also stranded.

Si ce groupe central de tubes en aluminium permet d'obtenir un conducteur de diamètre relativement important et donc d'éviter l'effet couronne appelé également effet corona propre à générer un bruit audible, lorsque ce conducteur est installé et sous tension, ce type de conducteur pose le problème technique suivant.If this central group of aluminum tubes makes it possible to obtain a conductor of relatively large diameter and therefore to avoid the corona effect, also called corona effect, capable of generating audible noise, when this conductor is installed and under tension, this type of driver poses the following technical problem.

Ce conducteur connu présente une tenue au sertissage de manchons de connexion très limitée, les tubes du groupe central ayant une forte tendance à se déformer.This known conductor has very limited resistance to crimping connection sleeves, the tubes of the central group having a strong tendency to deform.

L'invention résout ce problème en proposant un conducteur de transport d'énergie électrique aérien haute tension présentant une résistance transversale assurant une bonne tenue au sertissage de manchons de connexion.The invention solves this problem by proposing a high voltage overhead electric power transmission conductor having a transverse resistance ensuring good resistance to the crimping of connection sleeves.

L'invention concerne un conducteur de transport d'énergie électrique aérien haute tension comportant un groupe central comprenant dans au moins une couche interne des fils tubulaires métalliques autour d'un jonc central, ce groupe central étant entouré d'au moins une couche externe de fils pleins conducteurs, ladite couche interne comprenant également au moins un fil plein, caractérisé que les fils conducteurs de ladite couche externe sont de diamètre inférieur à celui des fils de ladite couche interne.The invention relates to a high-voltage aerial electrical power transmission conductor comprising a central group comprising, in at least one internal layer, tubular metal wires around a central rod, this central group being surrounded by at least one external layer of solid conductor wires, said layer internal also comprising at least one solid wire, characterized that the conductive wires of the said outer layer are of smaller diameter than that of the wires of the said inner layer.

Grâce à l'invention, le diamètre du conducteur est augmenté sans augmentation notable de son poids, ce qui est important, car ce type de conducteur aérien est installé sur des pylônes et le renfort mécanique de ces pylônes est complexe et coûteux.Thanks to the invention, the diameter of the conductor is increased without a significant increase in its weight, which is important, because this type of overhead conductor is installed on pylons and the mechanical reinforcement of these pylons is complex and expensive.

En outre, la réduction du diamètre des fils de la couche externe par rapport au diamètre des fils de la couche interne permet de réduire le bruit engendré par l'effet de couronne, émis par la ligne en fonctionnement, en limitant l'effet de pointe à l'origine de l'ionisation de l'air et du bruit.In addition, the reduction in the diameter of the wires of the outer layer compared to the diameter of the wires of the inner layer makes it possible to reduce the noise generated by the corona effect, emitted by the line in operation, by limiting the peak effect the cause of air ionization and noise.

L'invention permet également d'obtenir un conducteur pouvant travailler à haute température et garantissant une bonne durée de vie.The invention also makes it possible to obtain a conductor which can work at high temperature and guarantees a good lifetime.

Selon un mode de réalisation préféré, ladite couche interne comporte au moins deux fils pleins.According to a preferred embodiment, said internal layer comprises at least two solid threads.

Lesdits deux fils pleins sont de préférence diamétralement opposés dans ladite couche interne.Said two solid yarns are preferably diametrically opposed in said internal layer.

De préférence, le(s)dit(s) fil(s) plein(s) est (sont) de même diamètre externe que lesdits fils tubulaires.Preferably, said solid wire(s) is (are) of the same external diameter as said tubular wires.

Avantageusement, le(s)dit(s) fil(s) plein(s) est (sont) métalliques.Advantageously, said solid wire(s) is (are) metallic.

De préférence, lesdits fils sont en aluminium ou alliage d'aluminium. L'aluminium peut être dur ou recuit.Preferably, said wires are made of aluminum or aluminum alloy. Aluminum can be hard or annealed.

Ledit jonc central est de préférence constitué de fibres noyées dans une résine.Said central rod is preferably made of fibers embedded in a resin.

Le conducteur présente grâce à ce type de jonc composite une tenue mécanique particulièrement importante, permettant une installation sur des pylônes relativement éloignés.The conductor has, thanks to this type of composite rod, a particularly high mechanical strength, allowing installation on relatively distant pylons.

Le jonc central peut être également un jonc en fils d'acier ou en fils d'aluminium ou d'alliage d'aluminium.The central rod can also be a rod made of steel wires or aluminum or aluminum alloy wires.

Ledit jonc central est avantageusement constitué de fibres de carbone noyées dans une résine époxy.Said central rod advantageously consists of carbon fibers embedded in an epoxy resin.

Ledit jonc comporte avantageusement une couche de revêtement d'aluminium ou alliage d'aluminium.Said rod advantageously comprises a coating layer of aluminum or aluminum alloy.

Tous les fils sont de préférence toronnés.All wires are preferably stranded.

L'invention est décrite ci-après plus en détail à l'aide d'une figure ne représentant qu'un mode de réalisation préféré de l'inventionThe invention is described below in more detail with the aid of a figure representing only one preferred embodiment of the invention.

La figure unique est une vue en coupe transversale d'un conducteur de transport d'énergie électrique aérien haute tension conforme à l'invention.The single figure is a cross-sectional view of a high-voltage overhead electrical power transmission conductor according to the invention.

Un conducteur de transport d'énergie électrique aérien haute tension conforme à l'invention comporte un groupe central 1 comprenant dans une ou plusieurs couche(s) interne(s) des fils tubulaires métalliques 1A, de préférence en aluminium ou alliage d'aluminium, et également au moins un fil plein 1D de même diamètre externe, autour d'un jonc central 1B et ce groupe central est entouré d'au moins une couche externe de fils pleins conducteurs 2, de préférence en aluminium ou alliage d'aluminium.A high voltage aerial electrical power transmission conductor according to the invention comprises a central group 1 comprising in one or more internal layer(s) tubular metal wires 1A, preferably made of aluminum or aluminum alloy, and also at least one solid wire 1D of the same outer diameter, around a central rod 1B and this central group is surrounded by at least one outer layer of solid conductor wires 2, preferably made of aluminum or aluminum alloy.

Selon ce mode de réalisation préféré, la couche interne comporte au moins deux fils pleins 2A métalliques, et de préférence en aluminium ou alliage d'aluminium, diamétralement opposés dans la couche interne. Il est ainsi obtenu une bonne résistance à la compression transversale.According to this preferred embodiment, the inner layer comprises at least two solid wires 2A of metal, and preferably of aluminum or aluminum alloy, diametrically opposed in the inner layer. A good resistance to transverse compression is thus obtained.

Tous les fils sont toronnés pour former le conducteur.All the wires are stranded to form the conductor.

Le jonc central 1B est constitué de fibres de carbone noyées, de préférence par pultrusion, dans une résine époxy et comporte une couche d'aluminium 1E de revêtement d'aluminium ou alliage d'aluminium.The central rod 1B consists of carbon fibers embedded, preferably by pultrusion, in an epoxy resin and comprises an aluminum layer 1E of aluminum or aluminum alloy coating.

Les fils conducteurs 2 de la couche externe sont de diamètre inférieur à celui des fils 1A, 1D de la couche interne.The conductive wires 2 of the outer layer have a smaller diameter than that of the wires 1A, 1D of the inner layer.

A titre d'exemple dimensionnel, un tel conducteur peut comprendre :

  • un jonc central 1B composite d'un diamètre de l'ordre de 7 millimètres avec une couche de revêtement 1E d'une épaisseur de l'ordre de 0,5 millimètre,
  • six fils tubulaires 1A de la couche interne, d'un diamètre de l'ordre de 5 millimètres et d'une épaisseur de l'ordre de 1,5 millimètre,
  • deux fils pleins 1D de la couche interne d'un diamètre de l'ordre de 5 millimètres,
  • dix-huit fils conducteurs 2 de la couche externe d'un diamètre de l'ordre de 3,5 millimètres.
By way of dimensional example, such a conductor may comprise:
  • a central composite rod 1B with a diameter of around 7 millimeters with a coating layer 1E with a thickness of around 0.5 millimeters,
  • six tubular wires 1A of the inner layer, with a diameter of the order of 5 millimeters and a thickness of the order of 1.5 millimeters,
  • two 1D solid wires of the inner layer with a diameter of the order of 5 millimeters,
  • eighteen conducting wires 2 of the outer layer with a diameter of the order of 3.5 millimeters.

Claims (10)

  1. A conductor for overhead transport of high-voltage electric power including a central group (1) comprising, in at least one inner layer, tubular metal wires (1A) around a central rod (1B), this central group (1) being surrounded by at least one outer layer of solid conductive wires (2), said inner layer also comprising at least one solid wire (1D), characterized in that the conductive wires (2) of said outer layer have a diameter smaller than that of the wires (1A, 1D) of said inner layer.
  2. The conductor according to claim 1, characterized in that said inner layer includes at least two solid wires (1D).
  3. The conductor according to the preceding claim, characterized in that said two solid wires (1D) are diametrically opposite in said inner layer.
  4. The conductor according to one of the preceding claims, characterized in that said solid wire(s) (1D) has (have) the same outer diameter as said tubular wires (1A).
  5. The conductor according to one of the preceding claims, characterized in that said solid wire(s) (1D) is (are) metallic.
  6. The conductor according to one of the preceding claims, characterized in that said wires (1A, 1D, 2) are made from aluminum or aluminum alloy.
  7. The conductor according to one of the preceding claims, characterized in that said central rod (1B) is made up of fibers embedded in a resin.
  8. The conductor according to the preceding claim, characterized in that said central rod (1B) is made up of carbon fibers embedded in an epoxy resin.
  9. The conductor according to claim 7 or 8, characterized in that said rod (1B) includes a coating layer (1E) of aluminum or alloy.
  10. The conductor according to one of the preceding claims, characterized in that said wires (1A, 1D, 2) are twisted.
EP18212344.8A 2018-01-16 2018-12-13 Conductor for overhead transport of high-voltage electric power Active EP3511951B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1850358A FR3076944B1 (en) 2018-01-16 2018-01-16 HIGH VOLTAGE ELECTRICAL ENERGY TRANSMISSION CONDUCTOR

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Publication Number Publication Date
EP3511951A1 EP3511951A1 (en) 2019-07-17
EP3511951B1 true EP3511951B1 (en) 2023-06-07

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CA (1) CA3029049A1 (en)
FR (1) FR3076944B1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004273177A (en) * 2003-03-06 2004-09-30 Furukawa Electric Co Ltd:The Low noise type electric cable
CN202996331U (en) * 2012-12-27 2013-06-12 远东电缆有限公司 Energy-saving expanded lead
CN203311918U (en) * 2013-06-27 2013-11-27 远东电缆有限公司 Composite core diameter expanding lead
CN203520993U (en) * 2013-09-09 2014-04-02 河南通达电缆股份有限公司 Twisted aluminum tube set supporting hollow expanded diameter conductor
JP6240030B2 (en) * 2014-06-16 2017-11-29 住友電気工業株式会社 Overhead power line

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EP3511951A1 (en) 2019-07-17
FR3076944A1 (en) 2019-07-19
CA3029049A1 (en) 2019-07-16
FR3076944B1 (en) 2020-12-18

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