EP1995738B1 - Conducteur électrique - Google Patents

Conducteur électrique Download PDF

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Publication number
EP1995738B1
EP1995738B1 EP07290651A EP07290651A EP1995738B1 EP 1995738 B1 EP1995738 B1 EP 1995738B1 EP 07290651 A EP07290651 A EP 07290651A EP 07290651 A EP07290651 A EP 07290651A EP 1995738 B1 EP1995738 B1 EP 1995738B1
Authority
EP
European Patent Office
Prior art keywords
conductor
protective layer
conductive material
steel wire
diameter
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.)
Not-in-force
Application number
EP07290651A
Other languages
German (de)
English (en)
Other versions
EP1995738A1 (fr
Inventor
Ferdinand Grögl
Angela Brutler
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
Priority to EP07290651A priority Critical patent/EP1995738B1/fr
Priority to AT07290651T priority patent/ATE525731T1/de
Priority to PCT/EP2008/004050 priority patent/WO2008141807A1/fr
Priority to CN2008800250048A priority patent/CN101755311B/zh
Priority to US12/666,172 priority patent/US8357856B2/en
Priority to KR1020080047299A priority patent/KR20080103020A/ko
Publication of EP1995738A1 publication Critical patent/EP1995738A1/fr
Application granted granted Critical
Publication of EP1995738B1 publication Critical patent/EP1995738B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/0009—Details relating to the conductive cores
    • 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
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/22—Metal wires or tapes, e.g. made of steel
    • H01B7/221—Longitudinally placed metal wires or tapes
    • H01B7/223—Longitudinally placed metal wires or tapes forming part of a high tensile strength core
    • 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
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H01B7/2806—Protection against damage caused by corrosion
    • 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
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29—Protection against damage caused by extremes of temperature or by flame
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing

Definitions

  • the invention relates to an electrical conductor according to the preamble of patent claim 1.
  • Electrical conductors made of aluminum or an aluminum alloy are increasingly used in particular for weight and cost reasons as a replacement for copper conductors.
  • Main fields of application are, for example, automotive and aircraft technology.
  • the lower electrical conductivity of aluminum to copper is of minor importance for most applications.
  • a protective layer consisting of a zinc-tin alloy protective layer is, for example, according to the DE 22 50 836 A applied by ultrasound coating to the end of a previously solidified stranded aluminum conductor.
  • the oxidation layer on the conductor should be abraded by vibrations of the same.
  • conductor applies to aluminum conductors and aluminum alloy conductors. Both materials are also referred to hereinafter as "conductive material”. Such conductors are known as solid conductors or stranded conductors. They are so dimensioned that, on the one hand, a sufficient cross-section of conductive material is available for power transmission and, on the other hand, sufficient mechanical strength of the conductor is ensured, in particular against tensile loads. Due to the resulting, relatively high Cost of materials, the weight advantage over a conductor made of copper is partially lifted.
  • an electrical cable is provided with a conductor having a central steel wire around which is wound a number of wires made of copper or a copper alloy.
  • the initially mentioned DE 197 44 667 A1 describes a low-voltage line with a conductor comprising a plurality of Al alloy wires, each of which is surrounded by a protective layer of nickel. Each of these wires has a nominal diameter of 0.31 mm.
  • the invention has the object of developing the conductor described above so that the cost of conductive material without weakening a mechanical stability can be reduced.
  • This conductor has a significantly increased tensile strength through the steel wire, so that less conductive material is needed for its mechanical stability. Its material thickness in the layer surrounding the steel wire can thereby be limited in particular to a cross section which is sufficient for the transmission of control currents of low current intensity and of data or control signals.
  • the conductor itself and a constructed with such a conductor line can thus be made smaller overall, lighter and cheaper.
  • the continuously applied, very thin protective layer protects the conductor from corrosion, so that a contact element can optionally be attached to each point of the conductor without pretreatment of the same electrically conductive. This results in the further advantage that the known effect of the flow away of the conductive material in the region of a contact point does not affect because of the reduced amount of conductive material and because of the central steel wire.
  • Fig. 1 a cross section through a conductor according to the invention.
  • Fig. 2 a side view of the conductor with strata removed layers.
  • Fig. 3 a stranded conductor with multiple conductors after Fig. 1 ,
  • the conductor L after Fig. 1 has in its core a steel wire 1, around which a layer 2 of aluminum or an aluminum alloy - hereinafter referred to as "conductive material" - attached. Over the layer 2 is a completely closed, thin protective layer 3, which may consist for example of tin, nickel or silver. Tin or nickel is preferably used when the conductor L is to be used in high temperature areas. Silver is advantageous when used in the high frequency range.
  • the conductor L is surrounded by an insulating sheath 4, if it is to be used as a single conductor. It consists with advantage of temperature-resistant material.
  • Suitable materials for the insulating sleeve 4 are, for example, polyvinyl chloride, polypropylene, thermoplastic elastomers such as polyurethane and polyester, self-crosslinking or radiation-crosslinkable polymers such as crosslinked polyethylene, elastomers such as EVA, and fluoropolymers such as ethylene tetrafluoroethylene, fluorinated ethylene propylene, polytetrafluoroethylene or perfluoroalkoxy copolymer and silicone.
  • the conductor L according to FIGS. 1 and 2 is produced, for example, as follows:
  • Starting materials are a mild steel wire with a diameter of, for example, 4.0 mm, a breaking strength of at least 350 N / mm 2 , a modulus of elasticity of at least 210 kN / mm 2 and an electrical conductivity of at least 5 m / ohm ⁇ mm 2 and as a conductive material Pure aluminum or an aluminum alloy with a breaking strength of at least 10 N / mm 2 , a modulus of elasticity of at least 60 kN / mm 2 , preferably 65 kN / mm 2 , and an electrical conductivity of 35 m / ohm ⁇ mm 2 .
  • a strand is produced by pressing around the steel wire 1, the layer 2 of the conductive material with a wall thickness of 2.1 mm, for example with a punch press.
  • the strand then has a diameter of 8.2 mm.
  • the amounts of steel and conductive material used correspond in proportion to the above-mentioned ratio of 3.2 of the elastic moduli of both materials. With a different ratio of the modulus of elasticity of steel and conductive material, a small deviation for the diameter of the steel wire may result.
  • the resulting oxide layer is a weather-resistant protective layer for the strand when it is stored before further processing.
  • the oxide layer can first be removed, for example, chemically from the strand. It then follows, preferably already in a protective gas atmosphere, a coarse drawing process of the strand to a Vorziehdraht dimension in the range of 1.2 mm to 2.0 mm, preferably 1.8 mm.
  • the protective layer 3 is applied (further) under a protective gas atmosphere to the strand, for example by electrodeposition or hot dipping. In a protective layer 3 made of tin, this has a thickness of at least 6 microns.
  • the steel wire 1 has a diameter of approximately 0.875 mm.
  • the puller wire with protective layer 3 can be pulled down over multiple drawing machines to the required final dimension of the conductor L.
  • a thickness of the protective layer 3 in the range of 0.5 microns to 1.0 microns.
  • materials such as. As nickel or silver, which are required for high-temperature or high-frequency products, depending on the requirements of the conductor L may also result in greater layer thicknesses for the protective layer 3.
  • conductors L produced by the process described can have the diameter which can be taken from the following Table 1. In all embodiments, they have a specific weight of, for example, 3.9 g / cm 3 and an electrical conductance of, for example,> 27 m / ohm ⁇ mm 2 .
  • the steel wire 1 has a breaking strength of at least 1000 N / mm 2 .
  • Table 1 Diameter steel wire [mm] Conductor diameter [mm] 0.05 0,102 0.073 0,150 0,089 0.183 0.109 0.225 0,125 0,258 0,199 0.317 0,199 0.409
  • a conductor L after the Fig. 1 and 2 As a single conductor can advantageously be prepared a stranded conductor 5, in which a number of individual conductors is stranded together. Over the stranded conductor 5, an insulating sleeve 6 is attached, the material is temperature resistant with advantage.
  • Suitable materials for the insulating sleeve 6 are, for example, polyvinyl chloride, polypropylene, thermoplastic elastomers such as polyurethane or polyester, self-crosslinking or radiation-crosslinkable polymers such as crosslinked polyethylene, elastomers such as EPDM or EVA, and fluoropolymers such as ethylene tetrafluoroethylene, fluorinated ethylene propylene, polytetrafluoroethylene or perfluoroalkoxy copolymer and silicone ,
  • a stranded conductor 5 which is constructed with 19 conductors according to the preceding Table 1, has the apparent from the following Table 2 cross sections and breaking loads, which correspond approximately to those of stranded conductors with copper conductors of the same cross-section.
  • Table 2 Conductor diameter [mm] Conductor cross section [mm 2 ] Breaking strength [N] 0,102 0.16 40 0.15 0.34 75 0.183 0.5 115 0.225 0.75 170 0,258 1.0 230 0.317 1.5 340 0.409 2.5 570

Landscapes

  • Non-Insulated Conductors (AREA)
  • Insulated Conductors (AREA)

Claims (3)

  1. Conducteur électrique qui présente un matériau électriquement conducteur contenant de l'aluminium et qui est entouré sur son pourtour, au moins dans une zone destinée au raccordement d'un élément de contact électrique, par une couche protectrice (3) ayant une épaisseur d'au moins 0,5 µm et servant de protection anticorrosion, caractérisé en ce que le conducteur (L) présente comme élément central un fil en acier (1) ayant un diamètre compris entre 0,05 mm et 0,2 mm et une résistance à la rupture d'au moins 1000 N/mm2, autour duquel est façonnée par enroulement une couche (2) en le matériau conducteur entourant celui-ci sur toute sa périphérie et ayant une épaisseur de paroi telle qu'il en résulte un conducteur (L) ayant un diamètre compris entre 0,10 mm et 0,40 mm sur lequel est appliquée la couche protectrice (3).
  2. Conducteur selon la revendication 1, caractérisé en ce que la couche protectrice (3) est constituée d'étain, de nickel ou d'argent.
  3. Procédé de fabrication d'un conducteur selon la revendication 1, caractérisé en ce
    - qu'une couche (2) en un matériau bon conducteur d'électricité et contenant de l'aluminium est façonnée par enroulement autour d'un fil en acier (1) sur la périphérie duquel est appliquée une couche protectrice (3) et
    - que le conducteur (L) ainsi formé est ensuite réduit à la cote nominale dans au moins une opération d'étirage.
EP07290651A 2007-05-21 2007-05-21 Conducteur électrique Not-in-force EP1995738B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP07290651A EP1995738B1 (fr) 2007-05-21 2007-05-21 Conducteur électrique
AT07290651T ATE525731T1 (de) 2007-05-21 2007-05-21 Elektrischer leiter
PCT/EP2008/004050 WO2008141807A1 (fr) 2007-05-21 2008-05-21 Conducteur électrique
CN2008800250048A CN101755311B (zh) 2007-05-21 2008-05-21 导电体
US12/666,172 US8357856B2 (en) 2007-05-21 2008-05-21 Electric cable
KR1020080047299A KR20080103020A (ko) 2007-05-21 2008-05-21 전기 도체

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07290651A EP1995738B1 (fr) 2007-05-21 2007-05-21 Conducteur électrique

Publications (2)

Publication Number Publication Date
EP1995738A1 EP1995738A1 (fr) 2008-11-26
EP1995738B1 true EP1995738B1 (fr) 2011-09-21

Family

ID=38610898

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07290651A Not-in-force EP1995738B1 (fr) 2007-05-21 2007-05-21 Conducteur électrique

Country Status (6)

Country Link
US (1) US8357856B2 (fr)
EP (1) EP1995738B1 (fr)
KR (1) KR20080103020A (fr)
CN (1) CN101755311B (fr)
AT (1) ATE525731T1 (fr)
WO (1) WO2008141807A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101894610A (zh) * 2010-07-16 2010-11-24 江苏华能电缆股份有限公司 煤田数字勘探电缆
ITMI20121899A1 (it) * 2012-11-07 2014-05-08 Prysmian Spa Cavo elettrico per un impianto solare per la generazione di energia elettrica e di energia termica ed impianto che lo comprende
CN103886981A (zh) * 2013-09-18 2014-06-25 安徽华成电缆有限公司 一种铜带铠装及护套电力电缆
DE102014108347A1 (de) * 2014-06-13 2015-12-17 Leoni Bordnetz-Systeme Gmbh Elektrischer Litzenleiter sowie Verfahren zur Herstellung eines elektrischen Litzenleiters
CN107230509A (zh) * 2017-07-07 2017-10-03 山东太平洋光纤光缆有限公司 一种消防专用光电复合缆及其制备方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2918722A (en) * 1955-11-02 1959-12-29 Nat Standard Co Electrical communication wire
DD229242A1 (de) * 1984-11-21 1985-10-30 Kabelwerk Lausitz Veb Kraftfahrzeug-leitung mit zugfester leiterkonstruktion
JPH09147631A (ja) * 1995-09-20 1997-06-06 Denso Corp 検出器用のリード線
DE19744667B4 (de) 1996-10-09 2007-11-22 Kabelwerk Lausitz Gmbh Niederspannungsleitung für Kraftfahrzeuge
US6658836B2 (en) * 2001-03-14 2003-12-09 The Goodyear Tire & Rubber Company Hybrid cord
JP2004288625A (ja) * 2003-03-06 2004-10-14 Auto Network Gijutsu Kenkyusho:Kk 自動車用電線
CN2819395Y (zh) * 2005-09-02 2006-09-20 大连通发金属材料有限公司 镀锡铜包钢导线
CN1822246A (zh) * 2006-01-20 2006-08-23 吴江南方通信电缆厂 包覆式电子产品用镀银铜包钢线的制造方法
CN100411064C (zh) * 2006-08-03 2008-08-13 仲庆 通信电缆屏蔽层专用铜包钢编织细线的制备方法

Also Published As

Publication number Publication date
CN101755311B (zh) 2012-08-29
ATE525731T1 (de) 2011-10-15
KR20080103020A (ko) 2008-11-26
CN101755311A (zh) 2010-06-23
US8357856B2 (en) 2013-01-22
EP1995738A1 (fr) 2008-11-26
US20100263909A1 (en) 2010-10-21
WO2008141807A1 (fr) 2008-11-27

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