EP4354465A1 - Verfahren zur herstellung eines hydrophilen elektrischen leiters und entsprechender elektrischer leiter - Google Patents

Verfahren zur herstellung eines hydrophilen elektrischen leiters und entsprechender elektrischer leiter Download PDF

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Publication number
EP4354465A1
EP4354465A1 EP23202020.6A EP23202020A EP4354465A1 EP 4354465 A1 EP4354465 A1 EP 4354465A1 EP 23202020 A EP23202020 A EP 23202020A EP 4354465 A1 EP4354465 A1 EP 4354465A1
Authority
EP
European Patent Office
Prior art keywords
conductor
outer layer
hydrophilic
layer
electrical conductor
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.)
Pending
Application number
EP23202020.6A
Other languages
English (en)
French (fr)
Inventor
Stéphane Morice
Dionisio Rodriguez
Nicolas Ferrier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nexans SA
Original Assignee
Nexans SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nexans SA filed Critical Nexans SA
Publication of EP4354465A1 publication Critical patent/EP4354465A1/de
Pending legal-status Critical Current

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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
    • 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
    • H01B13/0009—Apparatus or processes specially adapted for manufacturing conductors or cables for forming corrugations on conductors or cables
    • 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 present invention relates to a method of manufacturing a hydrophilic electrical conductor and to a corresponding conductor.
  • the invention belongs to the field of electrical cables intended for the transport of energy and/or the transmission of data. It is particularly applicable in the field of aerial conductors.
  • the present invention aims to remedy the aforementioned drawbacks of the prior art.
  • the present invention proposes a method of manufacturing an electrical conductor comprising an outer layer of wires and at least one inner layer of threads, remarkable in that it comprises a treatment step applied to at least part of the outer layer and to at least part of the at least one inner layer, this treatment being adapted to make the layer hydrophilic outer layer and at least one inner layer.
  • all layers of conductor wires are made hydrophilic, allowing water to penetrate into the conductor and flowing through the interior of the conductor, instead of sliding over the exterior surface of the conductor and aggregating as droplets under the conductor. This makes it possible to significantly reduce the overall quantity of water drops which form on the surface of the conductor. Thus, the number of spikes is significantly reduced in the event of humidity or rain, which consequently reduces the sizzling noise described above.
  • the treatment step is a sandblasting step.
  • the treatment step is an anodizing step.
  • the treatment step is a hydrophilic product projection step.
  • the treatment step consists of applying a hydrophilic powder between the outer layer and the at least one inner layer.
  • the treatment step is applied to the entire outer layer.
  • the treatment step is applied to the entirety of at least one interior layer.
  • the present invention also proposes an electrical conductor comprising an outer layer of wires and at least one inner layer of wires, remarkable in that at least part of the outer layer and at least one part of the at least one interior layer have a surface roughness obtained by a process as briefly described above.
  • the conductor belongs to a high voltage overhead power line.
  • the conductor according to the present invention is an electrical conductor intended for example for the transport of energy and/or the transmission of data.
  • it is a conductor of a high-voltage overhead power line.
  • FIG. 1 shows a section of a hydrophilic conductor 10 of the prior art.
  • the conductor 10 comprises an outer layer 100 of wires and an inner layer 102 of wires. Only the exterior surface of the exterior layer 100, shown in thick lines in the drawing, has undergone a treatment making it hydrophilic.
  • FIG. 2 shows a section of a hydrophilic conductor 20 according to the present invention, in a particular embodiment.
  • the conductor 20 comprises an outer layer 200 of wires and at least one inner layer 202 of wires.
  • the conductor 20 comprises a single interior layer 202, but it may equally well comprise several layers, which are arranged one above the other.
  • the method of manufacturing the conductor 20 according to the invention comprises a treatment step applied to at least part of the outer layer 200 and to at least part of the at least one inner layer 202, this treatment being adapted to make hydrophilic the outer layer 200 and the at least one inner layer 202.
  • the technique used for the treatment may be a surface treatment such as sandblasting, anodizing or spraying with a hydrophilic product.
  • a surface treatment such as sandblasting, anodizing or spraying with a hydrophilic product.
  • any other technique making it possible to make the treated parts hydrophilic could be used, whether this technique has as its principle the abrasion of the treated surface or another principle.
  • the treatment may consist of applying a hydrophilic substance, for example in powder form, between the outer layer 200 and the at least one inner layer 202.
  • a hydrophilic substance for example in powder form
  • the term "between" means that the powder is applied to the outer layer. 200 and on the at least one inner layer 202 as well as in the interstices between the outer and inner layers.
  • the treatment can be applied either to only part of the outer layer 200, or to its entirety.
  • the treatment can be applied either to only part of the interior layer(s) 202, or to the entire layer(s).
  • the conductor 20 belongs for example, but not necessarily, to a high voltage overhead power line.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Insulated Conductors (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)
  • Non-Insulated Conductors (AREA)
EP23202020.6A 2022-10-14 2023-10-06 Verfahren zur herstellung eines hydrophilen elektrischen leiters und entsprechender elektrischer leiter Pending EP4354465A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2210605A FR3140982A1 (fr) 2022-10-14 2022-10-14 Procédé de fabrication d’un conducteur électrique hydrophile et conducteur électrique correspondant

Publications (1)

Publication Number Publication Date
EP4354465A1 true EP4354465A1 (de) 2024-04-17

Family

ID=84369661

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23202020.6A Pending EP4354465A1 (de) 2022-10-14 2023-10-06 Verfahren zur herstellung eines hydrophilen elektrischen leiters und entsprechender elektrischer leiter

Country Status (2)

Country Link
EP (1) EP4354465A1 (de)
FR (1) FR3140982A1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3930113A (en) * 1974-06-10 1975-12-30 Massachusetts Inst Technology High voltage overhead transmission line conductor with reduced wet weather corona noise and corona losses
US4147890A (en) * 1977-12-27 1979-04-03 Electric Power Research Institute, Inc. High voltage overhead electrical transmission cable protected from wet environment corona losses
JPS59134507A (ja) * 1983-01-21 1984-08-02 昭和電線電纜株式会社 架空送電線の表面処理方法
US4759805A (en) * 1980-03-24 1988-07-26 Fujikura Cable Works Ltd. Aluminum conductor of low audible noise transmission

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3930113A (en) * 1974-06-10 1975-12-30 Massachusetts Inst Technology High voltage overhead transmission line conductor with reduced wet weather corona noise and corona losses
US4147890A (en) * 1977-12-27 1979-04-03 Electric Power Research Institute, Inc. High voltage overhead electrical transmission cable protected from wet environment corona losses
US4759805A (en) * 1980-03-24 1988-07-26 Fujikura Cable Works Ltd. Aluminum conductor of low audible noise transmission
JPS59134507A (ja) * 1983-01-21 1984-08-02 昭和電線電纜株式会社 架空送電線の表面処理方法

Also Published As

Publication number Publication date
FR3140982A1 (fr) 2024-04-19

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