EP2793237A1 - Power-transmission cable with composite joints - Google Patents
Power-transmission cable with composite joints Download PDFInfo
- Publication number
- EP2793237A1 EP2793237A1 EP20140155813 EP14155813A EP2793237A1 EP 2793237 A1 EP2793237 A1 EP 2793237A1 EP 20140155813 EP20140155813 EP 20140155813 EP 14155813 A EP14155813 A EP 14155813A EP 2793237 A1 EP2793237 A1 EP 2793237A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rods
- cable according
- metal layer
- metal
- thickness
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims abstract description 37
- 239000002184 metal Substances 0.000 claims abstract description 37
- 229920005989 resin Polymers 0.000 claims abstract description 6
- 239000011347 resin Substances 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 239000000835 fiber Substances 0.000 claims abstract description 5
- 239000004020 conductor Substances 0.000 claims abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 14
- 229910000838 Al alloy Inorganic materials 0.000 claims description 8
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 4
- 239000004917 carbon fiber Substances 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000002788 crimping Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010288 cold spraying Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000001192 hot extrusion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- 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
- H01B5/102—Several wires or the like stranded in the form of a rope stranded around a space, insulating material, or dissimilar conducting material stranded around a high tensile strength core
- H01B5/105—Several wires or the like stranded in the form of a rope stranded around a space, insulating material, or dissimilar conducting material stranded around a high tensile strength core composed of synthetic filaments, e.g. glass-fibres
Definitions
- the invention relates to a cable for the transmission of electricity, in particular air, comprising a set of composite rods.
- Overhead cables with composite central rods forming a mechanical support of conductive wires wound around the rods and consisting of fibers pultruded in a resin are known.
- the central support comprises three groups of several stranded composite unit rods, each such group being coated with a layer of extruded aluminum hot. These groups of rods are stranded together and covered with another layer of aluminum by hot extrusion, around which are wound conductive son.
- the unitary rods are formed of carbon fibers and glass fibers pultruded in a resin.
- each group of unit rods contains a highly viscous two-component silicone grease polymerized.
- aluminum filler elements are stranded with the groups of unitary rods.
- the invention solves this problem by proposing a central composite rod ropes reliable manufacturing and constitution particularly resistant in operation.
- the invention proposes a power transmission cable comprising a central assembly of composite unit rods formed of fibers embedded in a resin and around which are arranged metal conductor wires, said set of unitary rods being coated with a first metal layer, characterized in that each unit ring is covered with a second metal layer with a thickness of less than 1 mm, said unitary rods having a diameter of between 1 and 10 mm and said first metal layer having a thickness of less than 3 mm.
- said set of rods comprises a central unit rod disposed on the longitudinal axis of the cable around which are strung several other unit rods.
- said first metal layer consists of a metal strip wound and welded longitudinally.
- said second metal layers consist of a metal strip wound and welded longitudinally.
- Said first metal layer is advantageously made of aluminum or aluminum alloy.
- Said second metal layers are advantageously also made of aluminum or aluminum alloy.
- Said unitary rods are advantageously made of carbon fibers pultruded in an epoxy resin.
- Said conductive son are preferably aluminum or aluminum alloy.
- said central unit ring has a diameter substantially equal to 4 mm and said other unit rods have a diameter of between 3 and 6 mm.
- Said first metal layer advantageously has a thickness of between 0.7 and 1.5 mm.
- Said second metal layers preferably have a thickness of between 0.2 mm and 0.5 mm.
- This figure is a cross-sectional view of a cable according to the invention.
- a power transmission cable comprises a central assembly 1 of composite unit rods 1A, 1B formed of fibers embedded in a resin, preferably carbon fibers pultruded in an epoxy resin, and around which are wound metal conductors son 2, 3, preferably aluminum or aluminum alloy 'aluminum.
- the cable comprises a first inner layer of conductive wires 2 of trapezoidal section and two outer layers of wires 3 of Z-shaped section wound in a reverse direction.
- Any combination of conductive wires of circular, trapezoidal and / or Z-shaped section may be used according to design considerations.
- the set of unit rods 1 is coated with a first metal layer 4 and each unit rod 1A, 1B is covered with a second metal layer 5A, 5B.
- This set of unit rods 1 comprises a central unit ring 1A disposed on the longitudinal axis of the cable and around which are strung several other unitary rods 1 B, for example six in number.
- the central unitary ring 1A advantageously has a diameter of between 1 and 10 mm, preferably substantially equal to 4 mm, and the other unitary rods 1 B advantageously have a diameter also between 1 and 10 mm, preferably between 3 and 6 mm and advantageously substantially equal to 5.5 mm.
- the first and second metal layers 4, 5A, 5B consist of a metal strip wound and welded longitudinally but they can also be made by another method, for example by extrusion, by plasma spraying or by cold spraying. .
- metal layers 4, 5A, 5B are preferably made of aluminum or aluminum alloy, but may also be of another metal, for example steel or stainless steel.
- the first metal layer 4 has a thickness less than 3 mm, preferably between 0.7 and 1.5 mm and advantageously substantially equal to 1 mm
- the second metal layers 5A, 5B have a thickness of less than 1 mm, preferably between 0.2 and 0.5 mm and advantageously substantially equal to 0.3 mm.
Landscapes
- Non-Insulated Conductors (AREA)
- Insulated Conductors (AREA)
Abstract
L'invention concerne un câble de transport d'électricité comportant un ensemble (1) central de joncs unitaires composites (1A, 1B) formés de fibres noyées dans une résine et autour duquel sont disposés des fils conducteurs métalliques (2, 3), ledit ensemble de joncs unitaires (1) étant revêtu d'une première couche métallique (4). Selon l'invention, chaque jonc unitaire (1A, 1 B) est recouvert d'une seconde couche métallique (5A, 5B) d'une épaisseur inférieure à 1 mm, lesdits joncs unitaires (1A, 1B) ayant un diamètre compris entre 1 et 10 mm et ladite première couche métallique (4) ayant une épaisseur inférieure à 3 mm.The invention relates to a power transmission cable comprising a central assembly (1) of composite unit rods (1A, 1B) formed of fibers embedded in a resin and around which metal conductor wires (2, 3) are arranged, said unitary rod assembly (1) being coated with a first metal layer (4). According to the invention, each unit rod (1A, 1B) is covered with a second metal layer (5A, 5B) with a thickness of less than 1 mm, said unitary rods (1A, 1B) having a diameter of between 1 and 10 mm and said first metal layer (4) having a thickness of less than 3 mm.
Description
L'invention concerne un câble de transport d'électricité en particulier aérien comportant un ensemble de joncs composites.The invention relates to a cable for the transmission of electricity, in particular air, comprising a set of composite rods.
Des câbles aériens à joncs centraux composites formant support mécanique de fils conducteurs enroulés autour des joncs et constitué de fibres pultrudées dans une résine sont connus.Overhead cables with composite central rods forming a mechanical support of conductive wires wound around the rods and consisting of fibers pultruded in a resin are known.
Selon le document de brevet
Pour extruder à chaud la première couche d'aluminium, chaque groupe de joncs unitaires contient une graisse de silicone à deux composants très visqueuse polymérisée. Par ailleurs, des éléments de remplissage en aluminium sont toronnés avec les groupes de joncs unitaires.To hot extrude the first aluminum layer, each group of unit rods contains a highly viscous two-component silicone grease polymerized. In addition, aluminum filler elements are stranded with the groups of unitary rods.
Outre sa complexité de fabrication suite à l'extrusion des couches d'aluminium, ce type de jonc pose le problème technique suivant. Dans chaque groupe de joncs unitaires, ces joncs unitaires relativement fragiles sont assemblés par toronnage sans protection et avec contacts directs entre eux. Il en résulte des risques importants de détérioration lors du câblage, lors du sertissage d'accessoires et même lors de l'utilisation du câble, par exemple suite aux efforts provoqués par le vent.In addition to its manufacturing complexity following the extrusion of aluminum layers, this type of rod poses the following technical problem. In each group of unitary rods, these relatively fragile unit rods are assembled by stranding unprotected and with direct contacts between them. This results in significant risks of deterioration during wiring, during the crimping of accessories and even during the use of the cable, for example due to the forces caused by the wind.
L'invention résout ce problème en proposant un câble à joncs composites centraux de fabrication fiable et de constitution particulièrement résistante en fonctionnement.The invention solves this problem by proposing a central composite rod ropes reliable manufacturing and constitution particularly resistant in operation.
Pour ce faire, l'invention propose un câble de transport d'électricité comportant un ensemble central de joncs unitaires composites formés de fibres noyées dans une résine et autour duquel sont disposés des fils conducteurs métalliques, ledit ensemble de joncs unitaires étant revêtu d'une première couche métallique, caractérisé en ce que chaque jonc unitaire est recouvert d'une seconde couche métallique d'une épaisseur inférieure à 1 mm, lesdits joncs unitaires ayant un diamètre compris entre 1 et 10 mm et ladite première couche métallique ayant une épaisseur inférieure à 3 mm.To do this, the invention proposes a power transmission cable comprising a central assembly of composite unit rods formed of fibers embedded in a resin and around which are arranged metal conductor wires, said set of unitary rods being coated with a first metal layer, characterized in that each unit ring is covered with a second metal layer with a thickness of less than 1 mm, said unitary rods having a diameter of between 1 and 10 mm and said first metal layer having a thickness of less than 3 mm.
De cette façon, tous les joncs unitaires sont totalement protégés lors du câblage, lors du sertissage d'accessoires et lors de l'utilisation du câble, par la seconde couche dont l'épaisseur n'excède pas 1 mm.In this way, all unit rods are fully protected during the wiring, during the crimping of accessories and when using the cable, by the second layer whose thickness does not exceed 1 mm.
De préférence, ledit ensemble de joncs comporte un jonc unitaire central disposé sur l'axe longitudinal du câble autour duquel sont toronnés plusieurs autres joncs unitaires.Preferably, said set of rods comprises a central unit rod disposed on the longitudinal axis of the cable around which are strung several other unit rods.
De préférence, ladite première couche métallique est constituée d'une bande de métal enroulée et soudée longitudinalement.Preferably, said first metal layer consists of a metal strip wound and welded longitudinally.
De préférence, lesdites secondes couches métalliques sont constituées d'une bande de métal enroulée et soudée longitudinalement.Preferably, said second metal layers consist of a metal strip wound and welded longitudinally.
Ladite première couche métallique est avantageusement en aluminium ou en alliage d'aluminium.Said first metal layer is advantageously made of aluminum or aluminum alloy.
Lesdites secondes couches métalliques sont avantageusement également en aluminium ou en alliage d'aluminium.Said second metal layers are advantageously also made of aluminum or aluminum alloy.
Lesdits joncs unitaires sont avantageusement en fibres de carbone pultrudées dans une résine époxy.Said unitary rods are advantageously made of carbon fibers pultruded in an epoxy resin.
Lesdits fils conducteurs sont avantageusement en aluminium ou en alliage d'aluminium.Said conductive son are preferably aluminum or aluminum alloy.
De préférence, ledit jonc unitaire central a un diamètre sensiblement égal à 4 mm et lesdits autres joncs unitaires ont un diamètre compris entre 3 et 6 mm.Preferably, said central unit ring has a diameter substantially equal to 4 mm and said other unit rods have a diameter of between 3 and 6 mm.
Ladite première couche métallique a avantageusement une épaisseur comprise entre 0,7 et 1,5 mm.Said first metal layer advantageously has a thickness of between 0.7 and 1.5 mm.
Lesdites secondes couches métalliques ont de préférence une épaisseur comprise entre 0,2 mm et 0,5 mm.Said second metal layers preferably have a thickness of between 0.2 mm and 0.5 mm.
L'invention est décrite ci-après plus en détail à l'aide d'une figure représentant un mode de réalisation préféré de l'invention.The invention is described below in more detail with the aid of a figure representing a preferred embodiment of the invention.
Cette figure est une vue en coupe transversale d'un câble conforme à l'invention.This figure is a cross-sectional view of a cable according to the invention.
Un câble de transport d'électricité conforme à l'invention comporte un ensemble central 1 de joncs unitaires composites 1A, 1B formés de fibres noyées dans une résine, de préférence des fibres de carbone pultrudées dans une résine époxy, et autour duquel sont enroulés des fils conducteurs métalliques 2, 3, avantageusement en aluminium ou en alliage d'aluminium.A power transmission cable according to the invention comprises a central assembly 1 of
A titre d'exemple, comme illustré, le câble comporte une première couche interne de fils conducteurs 2 de section trapézoïdale et deux couches externes de fils 3 de section en forme de Z enroulés dans un sens inverse. Toute combinaison de fils conducteurs de section circulaire, trapézoïdale et/ou en Z peut être utilisée selon des considérations de dimensionnement.By way of example, as illustrated, the cable comprises a first inner layer of
L'ensemble de joncs unitaires 1 est revêtu d'une première couche métallique 4 et chaque jonc unitaire 1A, 1B est recouvert d'une seconde couche métallique 5A, 5B.The set of unit rods 1 is coated with a
Cet ensemble de joncs unitaires 1 comporte un jonc unitaire central 1A disposé sur l'axe longitudinal du câble et autour duquel sont toronnés plusieurs autres joncs unitaires 1 B, par exemple au nombre de six.This set of unit rods 1 comprises a
Le jonc unitaire central 1A a avantageusement un diamètre compris entre 1 et 10 mm, de préférence sensiblement égal à 4 mm, et les autres joncs unitaires 1 B ont avantageusement un diamètre également compris entre 1 et 10 mm, de préférence compris entre 3 et 6 mm et avantageusement sensiblement égal à 5,5 mm.The central
De préférence, les première et seconde couches métalliques 4, 5A, 5B sont constituées d'une bande de métal enroulée et soudée longitudinalement mais elles peuvent également être réalisée par un autre procédé, par exemple par extrusion, par projection plasma ou par projection à froid.Preferably, the first and
Ces couches métalliques 4, 5A, 5B sont de préférence en aluminium ou en alliage d'aluminium, mais peuvent être également en un autre métal, par exemple en acier ou acier inoxydable.These
Avantageusement, la première couche métallique 4 a une épaisseur inférieure à 3 mm, de préférence comprise entre 0,7 et 1,5 mm et avantageusement sensiblement égale 1 mm, et les secondes couches métalliques 5A, 5B ont une épaisseur inférieure à 1 mm, de préférence comprise entre 0,2 et 0,5 mm et avantageusement sensiblement égale à 0,3 mm.Advantageously, the
Claims (11)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1353462A FR3004847B1 (en) | 2013-04-17 | 2013-04-17 | JONCS COMPOSITES ELECTRICITY TRANSPORT CABLE |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2793237A1 true EP2793237A1 (en) | 2014-10-22 |
EP2793237B1 EP2793237B1 (en) | 2016-04-13 |
Family
ID=48856830
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14155813.0A Not-in-force EP2793237B1 (en) | 2013-04-17 | 2014-02-19 | Power-transmission cable with composite joints |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2793237B1 (en) |
BR (1) | BR102014008298A2 (en) |
FR (1) | FR3004847B1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106205787A (en) * | 2016-08-31 | 2016-12-07 | 无锡江南电缆有限公司 | A kind of heat resisting diameter enlarging bus bar |
CN106205786A (en) * | 2016-08-31 | 2016-12-07 | 无锡江南电缆有限公司 | The reinforced heat resisting diameter enlarging bus bar of a kind of improvement |
CN114068069A (en) * | 2021-11-15 | 2022-02-18 | 广州岭南电缆股份有限公司 | Energy-saving conductor and preparation method and manufacturing equipment thereof |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03129606A (en) * | 1989-07-27 | 1991-06-03 | Hitachi Cable Ltd | Aerial power cable |
EP2410534A1 (en) | 2010-07-22 | 2012-01-25 | Tratos Cavi S.p.A. | Cord for high voltage overhead electrical lines, with high thermal limit and with 3 load-bearing cables |
WO2012052652A1 (en) * | 2010-10-20 | 2012-04-26 | Nexans | Electric power cable having a composite central rod |
-
2013
- 2013-04-17 FR FR1353462A patent/FR3004847B1/en not_active Expired - Fee Related
-
2014
- 2014-02-19 EP EP14155813.0A patent/EP2793237B1/en not_active Not-in-force
- 2014-04-07 BR BR102014008298A patent/BR102014008298A2/en not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03129606A (en) * | 1989-07-27 | 1991-06-03 | Hitachi Cable Ltd | Aerial power cable |
EP2410534A1 (en) | 2010-07-22 | 2012-01-25 | Tratos Cavi S.p.A. | Cord for high voltage overhead electrical lines, with high thermal limit and with 3 load-bearing cables |
WO2012052652A1 (en) * | 2010-10-20 | 2012-04-26 | Nexans | Electric power cable having a composite central rod |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106205787A (en) * | 2016-08-31 | 2016-12-07 | 无锡江南电缆有限公司 | A kind of heat resisting diameter enlarging bus bar |
CN106205786A (en) * | 2016-08-31 | 2016-12-07 | 无锡江南电缆有限公司 | The reinforced heat resisting diameter enlarging bus bar of a kind of improvement |
CN114068069A (en) * | 2021-11-15 | 2022-02-18 | 广州岭南电缆股份有限公司 | Energy-saving conductor and preparation method and manufacturing equipment thereof |
Also Published As
Publication number | Publication date |
---|---|
FR3004847B1 (en) | 2016-07-29 |
BR102014008298A2 (en) | 2014-12-23 |
EP2793237B1 (en) | 2016-04-13 |
FR3004847A1 (en) | 2014-10-24 |
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