EP3179483B1 - Electrical conductor for aeronautical applications - Google Patents

Electrical conductor for aeronautical applications Download PDF

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Publication number
EP3179483B1
EP3179483B1 EP16199394.4A EP16199394A EP3179483B1 EP 3179483 B1 EP3179483 B1 EP 3179483B1 EP 16199394 A EP16199394 A EP 16199394A EP 3179483 B1 EP3179483 B1 EP 3179483B1
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Prior art keywords
strands
copper
aluminum
alloy
electrical conductor
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German (de)
French (fr)
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EP3179483A1 (en
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Patrick Rybski
Sébastien Dablement
Werner WILCKEN
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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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
    • H01B1/023—Alloys based on aluminium
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
    • H01B1/026—Alloys based on copper
    • 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
    • H01B7/0009—Details relating to the conductive cores

Definitions

  • the invention relates to an electrical conductor for aeronautical applications.
  • the patent document FR 3 009 126 describes such a multi-stranded electrical conductor comprising at least one central silver-plated aluminum strand and a plurality of silver-plated copper strands arranged around this central strand.
  • this document describes a first conductor comprising an aluminum strand disposed at the center of the conductor, surrounded by six peripheral copper strands in contact in pairs and arranged in a single layer.
  • It also describes a second conductor comprising seven aluminum strands arranged in the center of the conductor, ie a central strand surrounded by six strands, these seven strands being surrounded by twelve peripheral copper strands in contact two by two and arranged in a single layer.
  • he describes a third conductor comprising nineteen aluminum strands arranged in the center of the conductor, i.e. a central strand surrounded by six strands surrounded by twelve strands, these nineteen strands being surrounded by eighteen peripheral copper strands in contact with two in pairs and arranged in a single layer.
  • the diameter of the central aluminum strands is substantially equal to that of the peripheral copper strands.
  • the assembly cohesion of the strands is obtained by means of an assembly operation, commonly called stranding, and which makes it possible by twisting and according to a preferential pitch value, to maintain the relative position of each strand with respect to the others.
  • the aluminum strands are therefore of reduced diameter and their assembly by stranding is problematic given the fragility of these strands.
  • the document JP 2010-129257 describes a multi-stranded electrical conductor comprising a single central strand of aluminum and a plurality of conductive strands of aluminum disposed in at least one layer around this central strand.
  • the document DE 298 02 010 U1 describes a cable for audio application comprising a single central metallic strand surrounded by twelve carbon fibers.
  • the invention proposes to reduce the use of aluminum strands of such a small cross section.
  • the invention provides a multi-stranded electrical conductor according to claim 1.
  • the diameter of all of said peripheral conductive strands is substantially identical.
  • the gauge called "American Wire Gauge” (acronym AWG, also known as Brown and Sharp (B&S) Wire Gauge) is a unit of measurement used in the United States among others, allowing to measure and standardize the diameter of a non-ferrous solid metal conductor.
  • This caliber is defined by the following data: AWG Diameter (mm) Section (mm 2 ) 12 2.05 3.31 13 1.83 2.62 14 1.63 2.08 15 1.45 1.65 16 1.29 1.31 17 1.15 1.04 18 1.02 0.823 19 0.912 0.653 20 0.812 0.518 21 0.723 0.410 22 0.644 0.326 23 0.573 0.258 24 0.511 0.205 25 0.455 0.162 26 0.405 0.129 27 0.361 0.102 28 0.321 0.0810 29 0.286 0.0642 30 0.255 0.0509
  • This gauge is also used to describe conductors with several stranded wires. In this case, it relates to a conductor whose cross section is equal to the total of the cross sections of the individual wires, the space between individual wires not being considered.
  • the multi-stranded electrical conductor being of AWG gauge of between 16 and 30, comprising a single central strand of aluminum or aluminum alloy and a plurality of conductive strands arranged around this central strand, the ratio between the diameter of said aluminum or aluminum alloy strand and the diameter of said peripheral conductor strands is equal to 3, these peripheral conductor strands being in contact two by two and twelve in number.
  • said conductive strands are made of copper or of a copper alloy. They can also be hybrids, comprising for example an aluminum part and a copper part.
  • At least one of said conductive strands consists at least of a layer of copper and of a layer of silver-plated copper alloy, the silver content of which is between 0.1% and 0.5% by weight.
  • the mass rate represents the ratio of the mass of silver to the mass of silver-plated copper alloy.
  • the specific contribution of each strand made up of a copper layer, and a layer of silver-plated copper alloy, the mass content of which is between 0.1% and 0.5%, is to allow the conductor to have a mechanical resistance greater than that of a copper strand of equivalent section, without degrading its electrical conductivity.
  • the conductor can have either a single strand or several strands of such a composition. Said conductor can also comprise other conductive strands made up of different compositions.
  • Strands arranged at the periphery of the conductor and made up at least of a layer of copper and a layer of silvered copper make it possible to minimize the contact resistances, subsequent to the connection of the connection parts by the user.
  • the strands are covered with a protective layer against corrosion.
  • the protective layer can be a layer of nickel.
  • the invention also relates to an electric cable consisting of at least one such multi-stranded electric conductor.
  • the multi-stranded electrical conductor shown on figure 1 is AWG gauge between 16 and 30 and comprises a single central strand 10 of aluminum or aluminum alloy and a plurality of strands 11 of copper or copper alloy arranged around this central strand.
  • the ratio between the diameter of the aluminum or aluminum alloy strand and the diameter of the peripheral copper or copper alloy strands is equal to 3, these peripheral copper or copper alloy strands being in contact in pairs and twelve in number.
  • the ratio between the section of the aluminum or aluminum alloy strand and the section of the peripheral copper or copper alloy strands is equal to 43%.
  • the characteristics of the strands as a function of the AWG caliber are specified in Table 1 below.
  • Table n ° 1 Al / Al alloy strands Cu / Cu Alloy strands AWG caliber Number ⁇ son Section Number ⁇ son Section mm mm 2 mm mm 2 30 1 0.191 0.029 12 0.0635 0.038 28 1 0.236 0.044 12 0.0785 0.058 26 1 0.3 0.071 12 0.1 0.094 24 1 0.345 0.093 12 0.115 0.125 22 1 0.48 0.181 12 0.16 0.241 20 1 0.609 0.291 12 0.203 0.388 18 1 0.762 0.456 12 0.254 0.608 16 1 0.9 0.636 12 0.3 0.848
  • the driver shown in the figure 2 is AWG 12 or 14 gauge and comprises a single central strand 21 of aluminum or aluminum alloy and a plurality of strands 22 of copper or copper alloy arranged around this central strand.
  • the ratio between the diameter of the aluminum or aluminum alloy strand and the diameter of the peripheral copper or copper alloy strands is equal to 5, these peripheral copper or copper alloy strands being in contact in pairs and eighteen in number.
  • the ratio between the section of the aluminum or aluminum alloy strand and the section of the peripheral copper or copper alloy strands is equal to 58%.
  • the characteristics of the strands as a function of the AWG caliber are specified in Table 2 below.
  • the driver shown in the figure 3 is AWG 12 or 14 gauge and comprises a single central strand 30 of aluminum or aluminum alloy and a plurality of strands 31 of copper or copper alloy arranged around this central strand.
  • the ratio between the diameter of the aluminum or aluminum alloy strand and the diameter of the peripheral copper or copper alloy strands is equal to 3, these peripheral copper or copper alloy strands being in contact in pairs and arranged in two layers of twelve and eighteen strands.
  • the ratio between the section of the aluminum or aluminum alloy strand and the section of the peripheral copper or copper alloy strands is equal to 23%.
  • the driver shown in the figure 4 is AWG 12 or 14 gauge and includes a layer of six strands 40B of aluminum over a central strand 40A and a plurality of copper or copper alloy strands arranged in a single layer around these central strands.
  • the ratio of the diameter of the aluminum or aluminum alloy strands to the diameter of the copper or copper alloy strands peripheral is equal to 1.67, these peripheral copper or copper alloy strands being in contact in pairs and eighteen in number.
  • the ratio between the section of the aluminum or aluminum alloy strands and the section of the peripheral copper or copper alloy strands is equal to 52%.
  • the driver shown in the figure 5 is AWG 12 or 14 gauge and comprises a layer of twelve strands 50B of aluminum on the central strand 50A and a plurality of strands 51 of copper or copper alloy arranged in a single layer around these central strands.
  • the ratio between the diameter of the central strand 50A of aluminum or aluminum alloy and the diameter of the peripheral copper or copper alloy strands is equal to 3, these peripheral copper or copper alloy strands being in contact in pairs. two and eighteen in number.
  • the ratio between the section of aluminum or aluminum alloy 50A and 50B aluminum or aluminum alloy strands and the section of the peripheral copper or copper alloy strands is equal to 54%.
  • the ratio between the diameter of the central aluminum or aluminum alloy strand 50A and the diameter of the layer of aluminum or aluminum alloy strands surrounding it is also equal to 3.
  • the conductor strands are arranged together so that the circular section of the conductor is as circular as possible. Indeed, such a conductor is easy to handle. Moreover, its behavior in bending is identical, whatever the direction of bending. It can therefore more easily be deployed and then connected in order to make an electrical connection between different devices.

Description

L'invention se rapporte à un conducteur électrique pour des applications aéronautiques.The invention relates to an electrical conductor for aeronautical applications.

Le document de brevet FR 3 009 126 décrit un tel conducteur électrique multibrins comprenant au moins un brin en aluminium argenté central et une pluralité de brins en cuivre argenté disposé autour de ce brin central.The patent document FR 3 009 126 describes such a multi-stranded electrical conductor comprising at least one central silver-plated aluminum strand and a plurality of silver-plated copper strands arranged around this central strand.

Plus précisément, ce document décrit un premier conducteur comprenant un brin en aluminium disposé au centre du conducteur, entouré de six brins périphériques en cuivre en contact deux à deux et disposés en une seule couche.More precisely, this document describes a first conductor comprising an aluminum strand disposed at the center of the conductor, surrounded by six peripheral copper strands in contact in pairs and arranged in a single layer.

Il décrit également un deuxième conducteur comprenant sept brins en aluminium disposés au centre du conducteur, soit un brin central entouré de six brins, ces sept brins étant entourés de douze brins périphériques en cuivre en contact deux à deux et disposés en une seule couche.It also describes a second conductor comprising seven aluminum strands arranged in the center of the conductor, ie a central strand surrounded by six strands, these seven strands being surrounded by twelve peripheral copper strands in contact two by two and arranged in a single layer.

Il décrit enfin un troisième conducteur comprenant dix-neuf brins en aluminium disposés au centre du conducteur, soit un brin central entouré de six brins entourés de douze brins, ces dix-neuf brins étant entourés de dix-huit brins périphériques en cuivre en contact deux à deux et disposés en une seule couche.Finally, he describes a third conductor comprising nineteen aluminum strands arranged in the center of the conductor, i.e. a central strand surrounded by six strands surrounded by twelve strands, these nineteen strands being surrounded by eighteen peripheral copper strands in contact with two in pairs and arranged in a single layer.

Selon tous les modes de réalisation décrits, le diamètre des brins d'aluminium centraux est sensiblement égal à celui des brins de cuivre périphériques.According to all the embodiments described, the diameter of the central aluminum strands is substantially equal to that of the peripheral copper strands.

La cohésion d'assemblage des brins est obtenue au moyen d'une opération d'assemblage, communément appelée toronnage, et qui permet par torsadage et selon une valeur de pas préférentielle, de maintenir la position relative de chaque brin par rapport aux autres.The assembly cohesion of the strands is obtained by means of an assembly operation, commonly called stranding, and which makes it possible by twisting and according to a preferential pitch value, to maintain the relative position of each strand with respect to the others.

Les brins d'aluminium sont donc de diamètre réduit et leur assemblage par toronnage est problématique compte-tenu de la fragilité de ces brins.The aluminum strands are therefore of reduced diameter and their assembly by stranding is problematic given the fragility of these strands.

Par ailleurs, il est connu du document de brevet WO 2012/073843 un conducteur électrique multibrins comprenant un brin unique central éventuellement en aluminium ou en alliage d'aluminium central et une pluralité de brins conducteurs disposés en au moins une couche autour de ce brin central.Moreover, it is known from the patent document WO 2012/073843 a multi-stranded electrical conductor comprising a single central strand optionally made of aluminum or of a central aluminum alloy and a plurality of conductive strands arranged in at least one layer around this central strand.

Le document JP 2010-129257 décrit un conducteur électrique multibrins comprenant un brin unique central en aluminium et une pluralité de brins conducteurs en aluminium disposés en au moins une couche autour de ce brin central.The document JP 2010-129257 describes a multi-stranded electrical conductor comprising a single central strand of aluminum and a plurality of conductive strands of aluminum disposed in at least one layer around this central strand.

Le document DE 298 02 010 U1 décrit un câble pour application audio comprenant un brin unique central métallique entouré de douze fibres de carbone.The document DE 298 02 010 U1 describes a cable for audio application comprising a single central metallic strand surrounded by twelve carbon fibers.

Sans compromettre la flexibilité du conducteur, l'invention propose de diminuer l'utilisation de brins d'aluminium de si petite section.Without compromising the flexibility of the conductor, the invention proposes to reduce the use of aluminum strands of such a small cross section.

Pour ce faire, l'invention propose un conducteur électrique multibrins selon la revendication 1.To do this, the invention provides a multi-stranded electrical conductor according to claim 1.

Selon l'invention, le diamètre de tous lesdits brins conducteurs périphériques est sensiblement identique.According to the invention, the diameter of all of said peripheral conductive strands is substantially identical.

Par ailleurs, le calibre appelé « American Wire Gauge » (d'acronyme AWG, également connu sous le nom de Brown and Sharp (B&S) Wire Gauge) est une unité de mesure utilisée aux États-Unis entre autres, permettant de mesurer et de standardiser le diamètre d'un conducteur métallique monobrin non-ferreux. Ce calibre est défini par les données suivantes : AWG Diamètre (mm) Section (mm2) 12 2.05 3.31 13 1.83 2.62 14 1.63 2.08 15 1.45 1.65 16 1.29 1.31 17 1.15 1.04 18 1.02 0.823 19 0.912 0.653 20 0.812 0.518 21 0.723 0.410 22 0.644 0.326 23 0.573 0.258 24 0.511 0.205 25 0.455 0.162 26 0.405 0.129 27 0.361 0.102 28 0.321 0.0810 29 0.286 0.0642 30 0.255 0.0509 In addition, the gauge called "American Wire Gauge" (acronym AWG, also known as Brown and Sharp (B&S) Wire Gauge) is a unit of measurement used in the United States among others, allowing to measure and standardize the diameter of a non-ferrous solid metal conductor. This caliber is defined by the following data: AWG Diameter (mm) Section (mm 2 ) 12 2.05 3.31 13 1.83 2.62 14 1.63 2.08 15 1.45 1.65 16 1.29 1.31 17 1.15 1.04 18 1.02 0.823 19 0.912 0.653 20 0.812 0.518 21 0.723 0.410 22 0.644 0.326 23 0.573 0.258 24 0.511 0.205 25 0.455 0.162 26 0.405 0.129 27 0.361 0.102 28 0.321 0.0810 29 0.286 0.0642 30 0.255 0.0509

Ce calibre est également utilisé pour décrire des conducteurs à plusieurs fils toronnés. Dans ce cas, il se rapporte à un conducteur dont la section transversale est égale au total des sections transversales des fils individuels, l'espace entre fils individuels n'étant pas considéré.This gauge is also used to describe conductors with several stranded wires. In this case, it relates to a conductor whose cross section is equal to the total of the cross sections of the individual wires, the space between individual wires not being considered.

Selon l'invention, le conducteur électrique multibrins étant de calibre AWG compris entre 16 et 30, comprenant un unique brin central en aluminium ou en alliage d'aluminium et une pluralité de brins conducteurs disposés autour de ce brin central, le rapport entre le diamètre dudit brin en aluminium ou en alliage d'aluminium et le diamètre desdits brins conducteurs périphériques est égal à 3, ces brins périphériques conducteurs étant en contact deux à deux et au nombre de douze.According to the invention, the multi-stranded electrical conductor being of AWG gauge of between 16 and 30, comprising a single central strand of aluminum or aluminum alloy and a plurality of conductive strands arranged around this central strand, the ratio between the diameter of said aluminum or aluminum alloy strand and the diameter of said peripheral conductor strands is equal to 3, these peripheral conductor strands being in contact two by two and twelve in number.

Avantageusement, lesdits brins conducteurs sont en cuivre ou en alliage de cuivre. Ils peuvent également être hybrides, comportant par exemple une partie en aluminium et une partie en cuivre.Advantageously, said conductive strands are made of copper or of a copper alloy. They can also be hybrids, comprising for example an aluminum part and a copper part.

De préférence, au moins un desdits brins conducteurs est constitué au minimum d'une couche de cuivre et d'une couche en alliage de cuivre argenté, dont le taux massique d'argent est compris entre 0,1% et 0,5%.Preferably, at least one of said conductive strands consists at least of a layer of copper and of a layer of silver-plated copper alloy, the silver content of which is between 0.1% and 0.5% by weight.

Le taux massique représente le rapport entre la masse d'argent sur la masse d'alliage de cuivre argenté. La contribution spécifique de chaque brin constitué d'une couche en cuivre, et d'une couche d'alliage de cuivre argenté, dont le taux massique d'argent est compris entre 0,1% et 0,5%, est de permettre au conducteur d'avoir une résistance mécanique supérieure à celle d'un brin de cuivre de section équivalente, sans en dégrader la conductibilité électrique. Le conducteur peut posséder, soit un seul brin soit plusieurs brins d'une telle composition. Ledit conducteur peut également comprendre d'autres brins conducteurs constitués de compositions différentes.The mass rate represents the ratio of the mass of silver to the mass of silver-plated copper alloy. The specific contribution of each strand made up of a copper layer, and a layer of silver-plated copper alloy, the mass content of which is between 0.1% and 0.5%, is to allow the conductor to have a mechanical resistance greater than that of a copper strand of equivalent section, without degrading its electrical conductivity. The conductor can have either a single strand or several strands of such a composition. Said conductor can also comprise other conductive strands made up of different compositions.

Des brins disposés en périphérie du conducteur et constitués au minimum d'une couche de cuivre et d'une couche de cuivre argentés permettent de minimiser les résistances de contact, consécutives au raccordement des pièces de connexion par l'utilisateur.Strands arranged at the periphery of the conductor and made up at least of a layer of copper and a layer of silvered copper make it possible to minimize the contact resistances, subsequent to the connection of the connection parts by the user.

Avantageusement, les brins sont recouverts d'une couche protectrice vis-à-vis de la corrosion.Advantageously, the strands are covered with a protective layer against corrosion.

Les contraintes mécaniques, les variations de température, d'hygrométrie et de pression, ainsi que les matériaux d'isolation, imposent en effet au conducteurs, et donc aux brins constituants ces conducteurs, une adaptation spécifique vis-à-vis des risques de corrosion.Mechanical stresses, variations in temperature, hygrometry and pressure, as well as the insulation materials, in fact impose on the conductors, and therefore on the strands constituting these conductors, a specific adaptation to the risk of corrosion. .

La couche protectrice peut être une couche de nickel.The protective layer can be a layer of nickel.

L'invention concerne également un câble électrique constitué d'au moins un tel conducteur électrique multibrins.The invention also relates to an electric cable consisting of at least one such multi-stranded electric conductor.

L'invention est décrite ci-après plus en détail à l'aide de figures représentant uniquement des modes de réalisation préférés de l'invention.

  • La figure 1 est une vue en coupe transversale d'un premier mode de réalisation de l'invention.
  • La figure 2 est une vue en coupe transversale d'un exemple de conducteur.
  • La figure 3 est une vue en coupe transversale d'un deuxième mode de réalisation de l'invention.
  • La figure 4 est une vue en coupe transversale d'un exemple de conducteur.
  • La figure 5 est une vue en coupe transversale d'un troisième mode de réalisation de l'invention.
The invention is described below in more detail with the aid of figures showing only preferred embodiments of the invention.
  • The figure 1 is a cross-sectional view of a first embodiment of the invention.
  • The figure 2 is a cross-sectional view of an exemplary conductor.
  • The figure 3 is a cross-sectional view of a second embodiment of the invention.
  • The figure 4 is a cross-sectional view of an exemplary conductor.
  • The figure 5 is a cross-sectional view of a third embodiment of the invention.

Le conducteur électrique multibrins représenté sur la figure 1 est de calibre AWG compris entre 16 et 30 et comprend un unique brin central 10 en aluminium ou en alliage d'aluminium et une pluralité de brins 11 en cuivre ou en alliage de cuivre disposés autour de ce brin central. Le rapport entre le diamètre du brin en aluminium ou en alliage d'aluminium et le diamètre des brins en cuivre ou en alliage de cuivre périphériques est égal à 3, ces brins périphériques en cuivre ou en alliage de cuivre étant en contact deux à deux et au nombre de douze. Le rapport entre la section du brin en aluminium ou en alliage d'aluminium et la section des brins en cuivre ou en alliage de cuivre périphériques est égal à 43%.The multi-stranded electrical conductor shown on figure 1 is AWG gauge between 16 and 30 and comprises a single central strand 10 of aluminum or aluminum alloy and a plurality of strands 11 of copper or copper alloy arranged around this central strand. The ratio between the diameter of the aluminum or aluminum alloy strand and the diameter of the peripheral copper or copper alloy strands is equal to 3, these peripheral copper or copper alloy strands being in contact in pairs and twelve in number. The ratio between the section of the aluminum or aluminum alloy strand and the section of the peripheral copper or copper alloy strands is equal to 43%.

Plus précisément, les caractéristiques des brins en fonction du calibre AWG sont précisées dans le tableau n°1 suivant. Tableau n° 1 Brins d'Al/alliage d'Al Brins Cu/AlliageCu Calibre AWG Nombre ø fils Section Nombre ø fils Section mm mm2 mm mm2 30 1 0,191 0,029 12 0,0635 0,038 28 1 0,236 0,044 12 0,0785 0,058 26 1 0,3 0,071 12 0,1 0,094 24 1 0,345 0,093 12 0,115 0,125 22 1 0,48 0,181 12 0,16 0,241 20 1 0,609 0,291 12 0,203 0,388 18 1 0,762 0,456 12 0,254 0,608 16 1 0,9 0,636 12 0,3 0,848 More precisely, the characteristics of the strands as a function of the AWG caliber are specified in Table 1 below. Table n ° 1 Al / Al alloy strands Cu / Cu Alloy strands AWG caliber Number ø son Section Number ø son Section mm mm 2 mm mm 2 30 1 0.191 0.029 12 0.0635 0.038 28 1 0.236 0.044 12 0.0785 0.058 26 1 0.3 0.071 12 0.1 0.094 24 1 0.345 0.093 12 0.115 0.125 22 1 0.48 0.181 12 0.16 0.241 20 1 0.609 0.291 12 0.203 0.388 18 1 0.762 0.456 12 0.254 0.608 16 1 0.9 0.636 12 0.3 0.848

Le conducteur représenté sur la figure 2 est de calibre AWG 12 ou 14 et comprend un unique brin central 21 en aluminium ou en alliage d'aluminium et une pluralité de brins 22 en cuivre ou en alliage de cuivre disposés autour de ce brin central. Le rapport entre le diamètre du brin en aluminium ou en alliage d'aluminium et le diamètre des brins en cuivre ou en alliage de cuivre périphériques est égal à 5, ces brins en cuivre ou en alliage de cuivre périphériques étant en contact deux à deux et au nombre de dix-huit. Le rapport entre la section du brin en aluminium ou en alliage d'aluminium et la section des brins en cuivre ou en alliage de cuivre périphériques est égal à 58%.The driver shown in the figure 2 is AWG 12 or 14 gauge and comprises a single central strand 21 of aluminum or aluminum alloy and a plurality of strands 22 of copper or copper alloy arranged around this central strand. The ratio between the diameter of the aluminum or aluminum alloy strand and the diameter of the peripheral copper or copper alloy strands is equal to 5, these peripheral copper or copper alloy strands being in contact in pairs and eighteen in number. The ratio between the section of the aluminum or aluminum alloy strand and the section of the peripheral copper or copper alloy strands is equal to 58%.

Plus précisément, les caractéristiques des brins en fonction du calibre AWG sont précisées dans le tableau n°2 suivant. Tableau n°2 Brins cl'Al/alliage d'Al Brins Cu/AlliageCu Calibre AWG Nombre Ø fils Section Nombre Ø fils Section mm mm 2 mm mm2 14 1 1,250 1,227 18 0,25 0,884 12 1 1,600 2,011 18 0,32 1,448 More precisely, the characteristics of the strands as a function of the AWG caliber are specified in Table 2 below. Table n ° 2 Al / Al alloy strands Cu / Cu Alloy strands AWG caliber Number Ø wires Section Number Ø wires Section mm mm 2 mm mm 2 14 1 1,250 1,227 18 0.25 0.884 12 1 1,600 2011 18 0.32 1,448

Le conducteur représenté sur la figure 3 est de calibre AWG 12 ou 14 et comprend un unique brin central 30 en aluminium ou en alliage d'aluminium et une pluralité de brins 31 en cuivre ou en alliage de cuivre disposés autour de ce brin central. Le rapport entre le diamètre du brin en aluminium ou en alliage d'aluminium et le diamètre des brins en cuivre ou en alliage de cuivre périphériques est égal à 3, ces brins en cuivre ou en alliage de cuivre périphériques étant en contact deux à deux et disposés en deux couches de douze et dix-huit brins. Le rapport entre la section du brin en aluminium ou en alliage d'aluminium et la section des brins en cuivre ou en alliage de cuivre périphériques est égal à 23%.The driver shown in the figure 3 is AWG 12 or 14 gauge and comprises a single central strand 30 of aluminum or aluminum alloy and a plurality of strands 31 of copper or copper alloy arranged around this central strand. The ratio between the diameter of the aluminum or aluminum alloy strand and the diameter of the peripheral copper or copper alloy strands is equal to 3, these peripheral copper or copper alloy strands being in contact in pairs and arranged in two layers of twelve and eighteen strands. The ratio between the section of the aluminum or aluminum alloy strand and the section of the peripheral copper or copper alloy strands is equal to 23%.

Plus précisément, les caractéristiques des brins en fonction du calibre AWG sont précisées dans le tableau n°3 suivant.

Figure imgb0001
More precisely, the characteristics of the strands according to the AWG caliber are specified in Table 3 below.
Figure imgb0001

Le conducteur représenté sur la figure 4 est de calibre AWG 12 ou 14 et comprend une couche de six brins 40B en aluminium sur un brin central 40A et une pluralité de brins en cuivre ou en alliage de cuivre disposés en une couche unique autour de ces brins centraux. Le rapport entre le diamètre des brins en aluminium ou en alliage d'aluminium et le diamètre des brins en cuivre ou en alliage de cuivre périphériques est égal à 1,67, ces brins en cuivre ou en alliage de cuivre périphériques étant en contact deux à deux et au nombre de dix-huit. Le rapport entre la section des brins en aluminium ou en alliage d'aluminium et la section des brins en cuivre ou en alliage de cuivre périphériques est égal à 52%.The driver shown in the figure 4 is AWG 12 or 14 gauge and includes a layer of six strands 40B of aluminum over a central strand 40A and a plurality of copper or copper alloy strands arranged in a single layer around these central strands. The ratio of the diameter of the aluminum or aluminum alloy strands to the diameter of the copper or copper alloy strands peripheral is equal to 1.67, these peripheral copper or copper alloy strands being in contact in pairs and eighteen in number. The ratio between the section of the aluminum or aluminum alloy strands and the section of the peripheral copper or copper alloy strands is equal to 52%.

Plus précisément, les caractéristiques des brins en fonction du calibre AWG sont précisées dans le tableau n°4 suivant.

Figure imgb0002
More precisely, the characteristics of the strands as a function of the AWG caliber are specified in Table 4 below.
Figure imgb0002

Le conducteur représenté sur la figure 5 est de calibre AWG 12 ou 14 et comprend une couche de douze brins 50B en aluminium sur le brin central 50A et une pluralité de brins 51 en cuivre ou en alliage de cuivre disposés en une couche unique autour de ces brins centraux. Le rapport entre le diamètre du brin central 50A en aluminium ou en alliage d'aluminium et le diamètre des brins en cuivre ou en alliage de cuivre périphériques est égal à 3, ces brins en cuivre ou en alliage de cuivre périphériques étant en contact deux à deux et au nombre de dix-huit.The driver shown in the figure 5 is AWG 12 or 14 gauge and comprises a layer of twelve strands 50B of aluminum on the central strand 50A and a plurality of strands 51 of copper or copper alloy arranged in a single layer around these central strands. The ratio between the diameter of the central strand 50A of aluminum or aluminum alloy and the diameter of the peripheral copper or copper alloy strands is equal to 3, these peripheral copper or copper alloy strands being in contact in pairs. two and eighteen in number.

Le rapport entre la section des brins en aluminium ou alliage d'aluminium 50A et 50B en aluminium ou en alliage d'aluminium et la section des brins en cuivre ou en alliage de cuivre périphériques est égal à 54%. Quant au rapport entre le diamètre du brin central 50A en aluminium ou en alliage d'aluminium et le diamètre de la couche de brins en aluminium ou en alliage d'aluminium l'entourant, il est également égal à 3.The ratio between the section of aluminum or aluminum alloy 50A and 50B aluminum or aluminum alloy strands and the section of the peripheral copper or copper alloy strands is equal to 54%. As for the ratio between the diameter of the central aluminum or aluminum alloy strand 50A and the diameter of the layer of aluminum or aluminum alloy strands surrounding it, it is also equal to 3.

Plus précisément, les caractéristiques des brins en fonction du calibre AWG sont précisées dans le tableau n°5 suivant.

Figure imgb0003
More precisely, the characteristics of the strands as a function of the AWG caliber are specified in Table 5 below.
Figure imgb0003

Dans tous les cas, les brins conducteurs sont arrangés ensemble de manière à ce que la section circulaire du conducteur soit la plus circulaire possible. En effet, un tel conducteur est facile à manipuler. De plus, son comportement en flexion est identique, quelle que soit la direction de flexion. Il peut donc plus facilement être déployé puis raccordé afin de réaliser une liaison électrique entre différents dispositifs.In all cases, the conductor strands are arranged together so that the circular section of the conductor is as circular as possible. Indeed, such a conductor is easy to handle. Moreover, its behavior in bending is identical, whatever the direction of bending. It can therefore more easily be deployed and then connected in order to make an electrical connection between different devices.

Claims (6)

  1. Multistrand electrical conductor of AWG calibre between 16 and 30, comprising a single central strand (10) in aluminium or aluminium alloy and a plurality of conducting strands (11) arranged around this central strand (10), the diameter of all said peripheral conducting strands (11) in contact in pairs being substantially identical, characterized in that the ratio between the diameter of said central strand (10) in aluminium or aluminium alloy and the diameter of said peripheral conducting strands (11) is 3, these peripheral conducting strands (11) being twelve in number.
  2. The multistrand electrical conductor according to claim 1, characterized in that said peripheral conducting strands (11) are in copper or copper alloy.
  3. The multistrand electrical conductor according to one of the preceding claims, characterized in that at least one of said peripheral conducting strands (11, 31, 50B) is composed of at least one layer of copper and one layer of silver-plated copper alloy having a weight percent of silver of between 0.1 % and 0.5 %.
  4. The multistrand electrical conductor according to one of the preceding claims, characterized in that said peripheral conducting strands (11, 31, 50B) are coated with a protective layer against corrosion.
  5. The multistrand electrical conductor according to claim 4, characterized in that said protective layer is a nickel layer.
  6. Electrical cable composed of at least one multistrand electrical conductor according to one of the preceding claims.
EP16199394.4A 2015-12-09 2016-11-17 Electrical conductor for aeronautical applications Active EP3179483B1 (en)

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US10373724B1 (en) * 2018-01-12 2019-08-06 Microsoft Technology Licensing, Llc Power cables, computing devices using the same, and methods of use
FR3101735B1 (en) * 2019-10-03 2021-09-03 Avo Carbon France Rotary Collector for Rotary Electric Machine Rotor
US11699538B1 (en) * 2022-04-20 2023-07-11 Aptiv Technologies Limited High-voltage electrical cable with mixed conductors

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BE363469A (en) *
GB1477940A (en) * 1975-12-04 1977-06-29 Standard Telephones Cables Ltd Cables
DE29802010U1 (en) * 1998-02-06 1999-04-01 Audioplan Kuehn & Kuehn Cables for audio purposes
US6960724B2 (en) * 2002-09-30 2005-11-01 Schlumberger Technology Corporation Dual stress member conductive cable
JP4804860B2 (en) * 2004-10-27 2011-11-02 古河電気工業株式会社 Composite twisted conductor
JP2010129257A (en) * 2008-11-26 2010-06-10 Sumitomo Wiring Syst Ltd Twisted conductor
JP2012119073A (en) * 2010-11-29 2012-06-21 Yazaki Corp Stranded conductor for insulated wire
FR2990048A1 (en) * 2012-04-26 2013-11-01 Nexans ELECTRIC ENERGY TRANSPORT CABLE
JP2014175137A (en) * 2013-03-08 2014-09-22 Fujikura Ltd Twisted wire conductor
FR3009126A1 (en) 2013-07-24 2015-01-30 Thales Sa MULTIPURPOSE ELECTRICAL CONDUCTOR IN COPPER AND SILVER ALUMINUM

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FR3045200B1 (en) 2018-11-09
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US20170169915A1 (en) 2017-06-15
EP3179483A1 (en) 2017-06-14

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