EP1605474A2 - Kabel mit mehreren isolierten Leitern in einem Mantel und Herstellungsverfahren des Kabels. - Google Patents

Kabel mit mehreren isolierten Leitern in einem Mantel und Herstellungsverfahren des Kabels. Download PDF

Info

Publication number
EP1605474A2
EP1605474A2 EP05300448A EP05300448A EP1605474A2 EP 1605474 A2 EP1605474 A2 EP 1605474A2 EP 05300448 A EP05300448 A EP 05300448A EP 05300448 A EP05300448 A EP 05300448A EP 1605474 A2 EP1605474 A2 EP 1605474A2
Authority
EP
European Patent Office
Prior art keywords
cable
sheath
skin
insulating element
insulated 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.)
Granted
Application number
EP05300448A
Other languages
English (en)
French (fr)
Other versions
EP1605474A3 (de
EP1605474B1 (de
Inventor
Christèle KENSICHER
Patrick Odot
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 EP1605474A2 publication Critical patent/EP1605474A2/de
Publication of EP1605474A3 publication Critical patent/EP1605474A3/de
Application granted granted Critical
Publication of EP1605474B1 publication Critical patent/EP1605474B1/de
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
    • H01B7/02—Disposition of insulation
    • H01B7/0275—Disposition of insulation comprising one or more extruded layers of insulation
    • 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
    • H01B7/02—Disposition of insulation
    • H01B7/0208—Cables with several layers of insulating material
    • 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
    • H01B7/38—Insulated conductors or cables characterised by their form with arrangements for facilitating removal of insulation

Definitions

  • the present invention relates to a composite cable of a plurality of insulated conductors extending inside the same protective sheath.
  • the invention also relates to a method of manufacture of such a cable.
  • the invention finds an application particularly advantageous, but not exclusive, in the field of energy cables and / or telecommunication.
  • an isolated conductor very generally designates everything electrically conductive element covered with a electrically insulating element. He is also heard that the conductive element and / or the element insulation can have a simple structure or composite. This is how the driver element can be made up of several electrical conductors independent or not, and that the insulating element be composed of a plurality of insulating layers superimposed.
  • the technical problem to be solved by object of the present invention is to propose a cable having at least two insulated conductors grouped together in a single sheath, each insulated conductor comprising a conductive element extending inside an insulating element, cable which would avoid the problems of the state of the technique being significantly less expensive to to make, while remaining easy to strip.
  • each isolated conductor is covered with a skin that is integral with the insulating element and which is non-stick vis-à-vis the sheath.
  • skin here designates an extremely thin which individually wraps a driver isolated and strongly adheres to the outer surface of the corresponding insulating element, surface with said layer cooperates by close contact. But besides, this skin presents here advantageously the property of not adhering to the inner surface of the sheath. The latter can therefore be very easily stripped without other than the integrity of isolated conductors can be altered.
  • the invention as thus defined presents the benefit of being significantly easier to implement that the solutions of art previous, since it requires only one conventional cable manufacturing equipment, in the occurrence an extrusion apparatus.
  • the solution consisting in inserting a skin must allow a productivity gain of the order of 10%, while guaranteeing non-adhesion between the sheath and the different insulated conductors.
  • the present invention also relates to characteristics that will emerge during the description which will follow, and which will have to be considered in isolation or in all their possible technical combinations.
  • the single figure therefore represents a cable 1 composed of four insulated conductors 2 that are grouped within the same protective sheath 3.
  • each driver isolated 2 is constituted by a conductive element 4 copper extending inside an insulating element 5 in polymer.
  • each insulated conductor 2 is otherwise covered of a skin 6 which is integral with its element insulation 5 and which is anti-adherent with respect to the sheath 3.
  • any combination of materials may be considered to constitute the different elements intended to to be in contact within the cable, namely each said insulating elements 5, said skin 6 and said sheath 3.
  • each skin 6 has a thickness of 0.05 to 0.2 mm.
  • the skin 6 here has no other function than provide an interface between each driver isolated 2 and sheath 3. This explains why his thickness is so low compared to that of each insulating element 5 and / or that of the sheath 3 which are rather of the order of a millimeter.
  • each skin 6 is here based on polypropylene.
  • this plastic material offers the advantage of having non-stick properties significant vis-à-vis most materials that are commonly used to constitute sheaths 3 in the field of cabling. Moreover, since the melting temperature of polypropylene is higher than the temperature of implementation of the sheath materials in question he there is no risk of sticking during training of sheath 3. In order for there to be a good adhesion between polypropylene and each driver isolated 2, the skin 6 will advantageously be formed in same time as the corresponding insulating element 5; the solidarity then being effected by surface interpenetration of both types of materials.
  • each insulating element 5 is by elsewhere based on at least one polyolefin reticulated, and sheath 3 is based at least one filled polyolefin.
  • each insulating element 5 is made from a composition comprising at least least one polyolefin of which at least one is crosslinkable. It then means that sheath 3 is made from a matrix of polyolefin type in which is dispersed a organic load, independently of the function of the latter.
  • each insulating element 5 is here based on polyethylene reticle.
  • sheath 3 is it based on a mixture of ethyl vinyl acetate and polyethylene.
  • each skin 6 can also be made from a blend of polypropylene and polyvinyl chloride.
  • the proportion of polypropylene versus polyvinyl chloride can advantageously vary from 5 to 30% in the skin component 6.
  • each insulating element 5 is then based on at least one halogenated polymer, while that sheath 3 is based on at least one charged halogenated polymer.
  • each insulating element 5 is based on polyvinyl chloride vinyl.
  • sheath 3 is based on polychloride loaded vinyl.
  • polypropylene and polyvinyl chloride are not a priori compatible, in the sense that there can not be theoretically of adhesion between these two types of plastic materials, in particular by interpenetration in the molten state.
  • a skin 6 consisting of a blend of polypropylene and polyvinyl chloride as previously defined, is advantageously able to adhere to an element polyvinyl chloride insulation 5 if the materials in question are both brought into contact with the state molten. So, so that there will not be adhesion between this skin 6 and a sheath 3 in polyvinyl chloride, it will suffice to file this last only once that said skin 6 does not will be more in the molten state.
  • the composition of sheath 3 is loaded with chalk. This characteristic has essentially to lower the price of returns from the sheath 3.
  • composition of the sheath 3 may further advantageously comprise a plasticizer.
  • the invention also relates to a method of manufacture of a cable 1 comprising at least two isolated conductors 2 grouped together within a single sheath 3, each insulated conductor 2 comprising a conductive element 4 extending inside a insulating element 5.
  • the cable according to the invention can thus be made with extrusion equipment which is particularly advantageous in terms of manufacturing cost, compared to the processes of the state of the technique that requires expensive equipment specific.
  • the extrusion of each skin 6 is performed simultaneously with the extrusion of the element corresponding insulator 5.

Landscapes

  • Insulated Conductors (AREA)
  • Manufacturing Of Electric Cables (AREA)
EP05300448.7A 2004-06-07 2005-06-02 Kabel mit mehreren isolierten Leitern in einem Mantel und Herstellungsverfahren des Kabels. Expired - Lifetime EP1605474B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0406090 2004-06-07
FR0406090A FR2871285B1 (fr) 2004-06-07 2004-06-07 Cable comportant plusieurs conducteurs isoles enveloppes dans une meme gaine et procede de fabrication d'un tel cable

Publications (3)

Publication Number Publication Date
EP1605474A2 true EP1605474A2 (de) 2005-12-14
EP1605474A3 EP1605474A3 (de) 2006-02-22
EP1605474B1 EP1605474B1 (de) 2018-03-14

Family

ID=34942639

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05300448.7A Expired - Lifetime EP1605474B1 (de) 2004-06-07 2005-06-02 Kabel mit mehreren isolierten Leitern in einem Mantel und Herstellungsverfahren des Kabels.

Country Status (6)

Country Link
US (1) US7586044B2 (de)
EP (1) EP1605474B1 (de)
CA (1) CA2508499A1 (de)
ES (1) ES2673175T3 (de)
FR (1) FR2871285B1 (de)
NO (1) NO20052667L (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2933228A1 (fr) * 2008-06-26 2010-01-01 Nexans Couche tubante electriquement isolante pour cable electrique

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140051927A1 (en) * 2012-08-20 2014-02-20 Boston Scientific Scimed, Inc. Electronic cable assemblies for use with medical devices
CN104282363A (zh) * 2013-07-08 2015-01-14 沈阳岳阳电缆有限公司 高强度移动型电缆
CN103854741A (zh) * 2014-02-24 2014-06-11 安徽卓越电缆有限公司 一种直流牵引补偿电缆

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59117549A (ja) * 1982-12-23 1984-07-06 Sumitomo Electric Ind Ltd 難燃、低煙ポリオレフイン樹脂組成物
GB2161644B (en) * 1984-07-09 1987-11-11 Pirelli General Plc Flexible electric cable
EP0287140B1 (de) * 1987-03-13 1990-10-10 van der Groep, Lambertus Adrianus Polymer-Zusammensetzung, Verfahren zu deren Herstellung und deren Anwendung
FR2764104B1 (fr) * 1997-06-02 1999-07-30 Alsthom Cge Alcatel Cable de transmission de donnees a hautes frequences, et procede et appareil pour sa fabrication
US6392153B1 (en) * 1998-12-18 2002-05-21 Equistar Chemicals, Lp Electrical conductive assembly
DE10036610A1 (de) * 2000-07-27 2002-02-07 Alcatel Sa Flexible elektrische Leitung für Schleppketten

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2933228A1 (fr) * 2008-06-26 2010-01-01 Nexans Couche tubante electriquement isolante pour cable electrique
EP2148335A1 (de) * 2008-06-26 2010-01-27 Nexans Isolierende Rohrleitungumhüllung für Stromkabel

Also Published As

Publication number Publication date
US20050274539A1 (en) 2005-12-15
NO20052667L (no) 2005-12-05
EP1605474A3 (de) 2006-02-22
ES2673175T3 (es) 2018-06-20
NO20052667D0 (no) 2005-06-03
FR2871285A1 (fr) 2005-12-09
FR2871285B1 (fr) 2006-09-08
EP1605474B1 (de) 2018-03-14
US7586044B2 (en) 2009-09-08
CA2508499A1 (en) 2005-12-04

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