EP1343178B1 - Câble électrique - Google Patents

Câble électrique Download PDF

Info

Publication number
EP1343178B1
EP1343178B1 EP02290563A EP02290563A EP1343178B1 EP 1343178 B1 EP1343178 B1 EP 1343178B1 EP 02290563 A EP02290563 A EP 02290563A EP 02290563 A EP02290563 A EP 02290563A EP 1343178 B1 EP1343178 B1 EP 1343178B1
Authority
EP
European Patent Office
Prior art keywords
central element
core
electrical cable
cable
winding
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.)
Expired - Lifetime
Application number
EP02290563A
Other languages
German (de)
English (en)
Other versions
EP1343178A1 (fr
Inventor
Uwe Dr. Rudorf
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 ES02290563T priority Critical patent/ES2225734T3/es
Priority to AT02290563T priority patent/ATE277412T1/de
Priority to DE50201094T priority patent/DE50201094D1/de
Priority to EP02290563A priority patent/EP1343178B1/fr
Publication of EP1343178A1 publication Critical patent/EP1343178A1/fr
Application granted granted Critical
Publication of EP1343178B1 publication Critical patent/EP1343178B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • H01B7/1895—Internal space filling-up means
    • 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
    • H01B7/1875—Multi-layer sheaths
    • H01B7/1885—Inter-layer adherence preventing means

Definitions

  • the invention relates to an electrical cable according to the preamble of claim 1.
  • Cables are used to illuminate airfields and other paved areas needed that can withstand high mechanical loads.
  • two single wires d. H. two insulated electrical conductors in a slot in the concrete or Lay asphalt.
  • the slot occupied with the single wires is then replaced with a Two-component concrete or poured with tar. With heavy loads can the concrete or the asphalt bend so that those poured into the tar Single wires tear.
  • the present invention has for its object an electrical cable to provide the individual veins with freedom of movement both in Longitudinal direction as well as in the radial direction, and thus the cable, but above all gives the wires that form the electrical circuit a higher tensile strength.
  • the cable should also be flexible.
  • the main advantage of the invention is that the compressible The central element is the insulated conductor with tensile load in the radial direction inwards can dodge. Due to the extremely short lay length of the electrically insulated conductors and the blind elements result in an excess length of the stranding elements. Both that compressible central element as well as the extremely short lay length of the stranding elements significantly increase the tensile strength of the cores.
  • the winding of the cable core with a Foil made of slidable plastic ensures that the cable core and the jacket are decoupled from each other in terms of force, so that the cable core in the case of Laying the cable in concrete or asphalt opposite the cable jacket, which then is fixed, can move.
  • An embodiment of the invention is shown schematically in the figure shown section through a cable described in more detail.
  • the electrical cable shown in section has a central element 1, which consists of a compressible core 1a and a plastic winding 1b. alternative can also be provided in a manner not shown, a tensile core, which a has outer layer of a compressible material. It is essential that the Central element 1 is able to withstand the forces occurring during the stranding.
  • the blind elements 3 are, for example, strands of polypropylene, polyethylene, polyamide or other suitable plastics.
  • the central element 1, the wires 2 and the Dummy elements 3 preferably have the same diameter, so that the shown embodiment 1 + 6 results in an optimal arrangement of the stranding elements.
  • the lay length of the stranding elements should be as short as possible be less than 10 D, preferably less than 8 D.
  • D is the Outside diameter of the existing from central element 1 and the stranding elements Cable core.
  • the cable core is provided with a winding 4, which is made of a plastic film with good Sliding properties exist.
  • a film made of polytetrafluoroethylene is particularly advantageous.
  • the plastic film can be applied as wrapping or in a longitudinal direction.
  • the winding 4 is surrounded by an extruded plastic jacket 5 which for example made of polyethylene, polyamide or polyurethane.
  • the cable according to the invention is extremely flexible and can absorb high longitudinal forces, without the wires 2 tearing. In the event of an external force, the wires can 2 dodge in the radial direction since the central element 1 is compressible.
  • the cable core can be almost unimpeded in the jacket 5 slide both lengthways and circumferentially. Then this is special Advantage if the cable sheath z. B. is set in a layer of concrete or asphalt and the cable is subjected to tensile stress.
  • the cable according to the teaching of the invention already stands out in addition to the above Advantages mentioned by a low weight and low manufacturing costs.

Landscapes

  • Insulated Conductors (AREA)
  • Inorganic Insulating Materials (AREA)

Claims (6)

  1. Un câble électrique comportant une âme de câble composée d'un ou de plusieurs conducteurs isolés ainsi que d'une gaine entourant l'âme de câble, où l'âme de câble comporte un élément central (1), au moins deux conducteurs isolés (2) ainsi que un ou plusieurs faux-éléments (3), et où les conducteurs isolés (2) et les faux-éléments (3) sont toronnés autour de l'élément central (1) avec une longueur du pas court inférieur à 10 D, D étant le diamètre de l'âme de câble, le câble de l'invention étant caractérisé par le fait que l'élément central (1) est constitué d'un matériau compressible et l'âme de câble (1, 2, 3) est enveloppée d'un enroulement (4) constitué d'un matériau ayant de bonnes propriétés de glissement.
  2. Un câble électrique conforme à la revendication 1, et caractérisé par le fait que l'élément central (1) est constitué d'un noyau compressible (1 a) et d'un enroulement élastique déformable (1 b).
  3. Un câble électrique conforme à la revendication 2, et caractérisé par le fait que l'élément central (1) est une corde (1a) en coton qui est enfermée dans un enroulement (1 b) constitué d'une bande en matière synthétique.
  4. Un câble électrique conforme à une des revendications 1 à 3, et caractérisé par le fait que les conducteurs (2), l'élément central (1) ainsi que les faux-eléments (3) possèdent le même diamètre extérieur.
  5. Un câble électrique conforme à une des revendications 1 à 4, et caractérisé par le fait que l'enroulement (4) est constitué d'une feuille de polytétrafluoréthylène ou d'un matériau semblable.
  6. Un câble électrique conforme à une des revendications 1 à 5, et caractérisé par le fait que la gaine (5) est constituée d'une gaine extrudée en matière synthétique thermoplastique ou réticulée, ou en caoutchouc.
EP02290563A 2002-03-06 2002-03-06 Câble électrique Expired - Lifetime EP1343178B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES02290563T ES2225734T3 (es) 2002-03-06 2002-03-06 Cable electrico.
AT02290563T ATE277412T1 (de) 2002-03-06 2002-03-06 Elektrisches kabel
DE50201094T DE50201094D1 (de) 2002-03-06 2002-03-06 Elektrisches Kabel
EP02290563A EP1343178B1 (fr) 2002-03-06 2002-03-06 Câble électrique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02290563A EP1343178B1 (fr) 2002-03-06 2002-03-06 Câble électrique

Publications (2)

Publication Number Publication Date
EP1343178A1 EP1343178A1 (fr) 2003-09-10
EP1343178B1 true EP1343178B1 (fr) 2004-09-22

Family

ID=27741247

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02290563A Expired - Lifetime EP1343178B1 (fr) 2002-03-06 2002-03-06 Câble électrique

Country Status (4)

Country Link
EP (1) EP1343178B1 (fr)
AT (1) ATE277412T1 (fr)
DE (1) DE50201094D1 (fr)
ES (1) ES2225734T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105070358A (zh) * 2015-08-14 2015-11-18 昆山信昌电线电缆有限公司 一种高柔软耐磨阻燃拖链工业用电缆

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3144743A1 (de) * 1981-11-11 1983-05-19 U.I. Lapp Kg, 7000 Stuttgart Elektrische, flexible leitung mit besonderer widerstandsfaehigkeit gegen torsionsbeanspruchung
US5313020A (en) * 1992-05-29 1994-05-17 Western Atlas International, Inc. Electrical cable

Also Published As

Publication number Publication date
DE50201094D1 (de) 2004-10-28
EP1343178A1 (fr) 2003-09-10
ATE277412T1 (de) 2004-10-15
ES2225734T3 (es) 2005-03-16

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