EP1667170A2 - Câble de communication - Google Patents

Câble de communication Download PDF

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Publication number
EP1667170A2
EP1667170A2 EP05292544A EP05292544A EP1667170A2 EP 1667170 A2 EP1667170 A2 EP 1667170A2 EP 05292544 A EP05292544 A EP 05292544A EP 05292544 A EP05292544 A EP 05292544A EP 1667170 A2 EP1667170 A2 EP 1667170A2
Authority
EP
European Patent Office
Prior art keywords
cable according
cable
inner layer
insulating material
flame
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.)
Withdrawn
Application number
EP05292544A
Other languages
German (de)
English (en)
Inventor
Harald Büthe
Harald Heymanns
Wilfried Konieczny
Stefan Krumm
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 EP1667170A2 publication Critical patent/EP1667170A2/fr
Withdrawn legal-status Critical Current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
    • H01B7/29—Protection against damage caused by extremes of temperature or by flame
    • H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame

Definitions

  • the invention relates to a communication cable with a plurality of wires consisting of insulated conductors, in which the wires are stranded together to stranding elements, a large number of which is combined in a cable core, and in which the cable core surrounded at least by a sheath of insulating material is.
  • Such communication cables - in the following called “cables” for short - have been known for a long time and are in use worldwide. They are described, for example, in the textbook “Kabeltechnik” by M. Klein, Spinger Verlag 1929, pages 224 to 226.
  • the cables are normally sufficient for all technical transmission and mechanical requirements.
  • appropriate insulating materials and insulation techniques must be used and in many cases also other structures must be used. Corresponding measures can lead to a deterioration of the transmission properties.
  • the invention has for its object to make the initially described cable so that it meets all requirements for safety reasons in case of fire with unchanged good transmission properties.
  • this cable are used as insulating non-flammable or flame-retardant and / or flame-resistant materials.
  • the cable is therefore not flammable so that it can be used with advantage for example in tunnels or other areas with increased risk in case of fire.
  • the head of the wires are also surrounded in the inner layer of flame-resistant insulating material that retains its insulating properties in case of fire, even at high temperatures at least for a sufficiently long period, so that the functionality of the cable is guaranteed for this period (emergency operation). All insulating materials of the cable are also advantageously selected so that their electrical properties allow optimum transmission of telecommunications signals.
  • the inner layer directly surrounding the conductors of the wires for which, for example, a material of glass / silicone / mica, of glass fibers and / or of ceramic fibers can be used.
  • the outer layer surrounding the inner layer is made of a polyolefin whose good electrical properties are well known. In addition to the increased security of the cable in case of fire so its good electrical properties are guaranteed, so that such a cable on the one hand without problems with other cables whose design is designed only for electrical or transmission requirements, and on the other hand for higher frequencies up 1 MHz and higher, as required for the transmission of current digital signals with high bit rates.
  • the cable K shown in FIGS. 1 and 2 has Verseileiemente 1, which consist of two wires stranded together to a pair 2. Instead of the pairs could be used as Verseilieri also in the news area usual star quads, in which four wires 2 are stranded with exact assignment to each other.
  • the stranding elements 1 are arranged in the illustrated embodiment in layer stranding in superimposed layers in the cable K. For the sake of clarity, gaps between the stranding elements 1 are shown. These gaps are actually not present because the Verseileiemente 1 are directly adjacent.
  • the stranding elements 1 can be combined in bundles in the cable core in deviation from the illustrated strand stranding.
  • Each wire 2 has, according to FIGS. 3 and 4, a conductor 3, which is surrounded by an inner layer 4 of a flame-resistant insulating material.
  • Suitable insulating materials are, for example, materials based on glass / silicone / mica, which is also known under the trade name "Mica", as well as materials with glass fibers and / or ceramic fibers.
  • Overlying the inner layer 4 is an extrusion-produced layer 5 of polyolefin, which may be polyethylene or even a halogen-free, flame-retardant polyethylene-based compound.
  • the inner layer 4 has at least one band which is wound around the conductor 3 with overlapping edges. It is constructed in a preferred embodiment of two bands 6 and 7, which are wrapped around the conductor 3 with overlapping edges.
  • the bands 6 and 7 are made of the above materials. They are wound in a preferred embodiment in the opposite direction around the conductor 3, as shown in Fig. 3.
  • the bands 6 and 7 have a different width in a preferred embodiment.
  • the wider band 7 is preferably wrapped around the conductor 3 directly surrounding, narrower band 6.
  • the layer 5 is firmly connected to the inner layer 4, which has no smooth surface because of the wound tapes. The material of the layer 5 can therefore "catch" during extrusion with the inner layer.
  • two wires 2 are first stranded together in pairs.
  • the stranding takes place in a preferred embodiment with a complete (100%) reverse rotation.
  • the resulting stranding elements 1 are then stranded in, for example, three superimposed layers to a cable core 8 also with complete reverse rotation, as shown in FIGS. 1 and 2.
  • the cable core 8 can also have more than three or only two layers. Between the individual layers of the stranding elements 1 windings can be attached.
  • the cable core 8 may be surrounded by a winding.
  • the stranding elements 1 can also be combined into bundles.
  • a closed sheath 9 consisting of a metal band.
  • the metal band is, in a preferred embodiment, longitudinally formed, with overlapping edges around the cable core 8.
  • the overlap seam is advantageously closed metallically.
  • the metal strip is preferably made of aluminum. It is designed for example as aluminum foil.
  • the metal strip may be coated on one side with a layer in the finished cable K outer layer of a copolymer as a primer, which is tacky when exposed to heat.
  • the metal strip or the shell 9 is then glued in a kind of sandwich design with a jacket 10 made of insulating material, which is extruded onto the shell 9. The bonding is effected by the heat of the extruded shell 10.
  • the bonding between the envelope 9 and the jacket 10 is also achieved if, prior to the extrusion of the jacket 10, a bonding agent is applied to the envelope 9.
  • a reinforcement 11 can first be attached over the casing 9, onto which the casing 10 is then extruded.
  • the reinforcement 11 is in a preferred embodiment of two steel strips, which are wound over each other lying with a gap. The gaps of one band are covered with advantage by the other steel band.

Landscapes

  • Insulated Conductors (AREA)
EP05292544A 2004-12-06 2005-11-30 Câble de communication Withdrawn EP1667170A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004058845 2004-12-06

Publications (1)

Publication Number Publication Date
EP1667170A2 true EP1667170A2 (fr) 2006-06-07

Family

ID=35998452

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05292544A Withdrawn EP1667170A2 (fr) 2004-12-06 2005-11-30 Câble de communication

Country Status (2)

Country Link
US (1) US7247797B2 (fr)
EP (1) EP1667170A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2346130A3 (fr) * 2009-10-27 2013-07-31 Kabelovna Kabex a.s. Tuyau résistant au feu pour câbles
IT201800010156A1 (it) * 2018-11-08 2020-05-08 Prysmian Spa Cavo di segnalazione ferroviario resistente al fuoco

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20121178A1 (it) * 2012-07-05 2014-01-06 Prysmian Spa Cavo elettrico resistente a fuoco, acqua e sollecitazioni meccaniche
DE202013002912U1 (de) * 2013-03-27 2013-05-27 Balluff Gmbh Elektrokabel zur Verwendung in einer Schweißvorrichtung
DE202013002911U1 (de) * 2013-03-27 2013-05-27 Balluff Gmbh Umspritztes Elektrokabel zur Verwendung in einer Schweißvorrichtung
DE202013103037U1 (de) * 2013-07-09 2014-07-18 Hradil Spezialkabel Gmbh Datenkabel
US20160233006A1 (en) * 2015-02-09 2016-08-11 Commscope Technologies Llc Interlocking ribbon cable units and assemblies of same
DE202015102166U1 (de) * 2015-04-29 2015-06-15 Balluff Gmbh Elektrokabel zur Verwendung in einer Schweißvorrichtung
DE202015102167U1 (de) * 2015-04-29 2015-06-15 Balluff Gmbh Umspritztes Elektrokabel zur Verwendung in einer Schweißvorrichtung
DE102015210389A1 (de) * 2015-06-05 2016-12-08 Leoni Kabel Holding Gmbh Datenkabel
JP6734069B2 (ja) * 2016-02-16 2020-08-05 日立金属株式会社 ケーブル及びハーネス
JP6670440B2 (ja) * 2016-03-04 2020-03-25 日立金属株式会社 ケーブル及びワイヤハーネス
CN108074674A (zh) * 2016-11-14 2018-05-25 北京亨通斯博通讯科技有限公司 一种抗折阻燃数据电缆
CN113871064B (zh) * 2021-08-24 2023-08-22 江苏上上电缆集团有限公司 一种105℃耐扭风能电缆的制造方法及电缆

Family Cites Families (13)

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Publication number Priority date Publication date Assignee Title
US2185558A (en) * 1935-02-27 1940-01-02 Jesse B Lunsford Electrical conductor
US3576388A (en) * 1968-12-05 1971-04-27 Stauffer Wacker Silicone Corp Electrical cable
US3692924A (en) * 1971-03-10 1972-09-19 Barge Inc Nonflammable electrical cable
US3823255A (en) * 1972-04-20 1974-07-09 Cyprus Mines Corp Flame and radiation resistant cable
US4051324A (en) * 1975-05-12 1977-09-27 Haveg Industries, Inc. Radiation resistant cable and method of making same
NO141732C (no) * 1977-01-12 1984-09-04 Norsk Kabelfabrik As Flammebestandig kabelkonstruksjon
DE3373039D1 (en) * 1982-10-01 1987-09-17 Raychem Ltd Electric wire with flame retarded cladding
US4510348A (en) * 1983-03-28 1985-04-09 At&T Technologies, Inc. Non-shielded, fire-resistant plenum cable
NO153511C (no) * 1983-08-25 1986-04-02 Standard Tel Kabelfab As Brann-og oljeresistent kabel.
US4510346A (en) * 1983-09-30 1985-04-09 At&T Bell Laboratories Shielded cable
JPH0221511A (ja) * 1988-03-03 1990-01-24 Sumitomo Electric Ind Ltd 一括シールド付多芯ケーブル
US6127632A (en) * 1997-06-24 2000-10-03 Camco International, Inc. Non-metallic armor for electrical cable
US6787694B1 (en) * 2000-06-01 2004-09-07 Cable Design Technologies, Inc. Twisted pair cable with dual layer insulation having improved transmission characteristics

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
M. KLEIN: "KABELTECHNIK", 1929, SPINGER VERLAG, pages: 224 - 226

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2346130A3 (fr) * 2009-10-27 2013-07-31 Kabelovna Kabex a.s. Tuyau résistant au feu pour câbles
IT201800010156A1 (it) * 2018-11-08 2020-05-08 Prysmian Spa Cavo di segnalazione ferroviario resistente al fuoco
EP3651165A1 (fr) * 2018-11-08 2020-05-13 Prysmian S.p.A. Câble de signalisation résistant au feu pour des applications de chemin de fer

Also Published As

Publication number Publication date
US7247797B2 (en) 2007-07-24
US20060180337A1 (en) 2006-08-17

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