EP1199728A2 - Conducteur electrique isolé continuant à fonctionner en cas d'incendie - Google Patents

Conducteur electrique isolé continuant à fonctionner en cas d'incendie Download PDF

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Publication number
EP1199728A2
EP1199728A2 EP01402422A EP01402422A EP1199728A2 EP 1199728 A2 EP1199728 A2 EP 1199728A2 EP 01402422 A EP01402422 A EP 01402422A EP 01402422 A EP01402422 A EP 01402422A EP 1199728 A2 EP1199728 A2 EP 1199728A2
Authority
EP
European Patent Office
Prior art keywords
conductor
layer
mica
glass
tape
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Withdrawn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
EP01402422A
Other languages
German (de)
English (en)
Other versions
EP1199728A3 (fr
Inventor
Reinhold Göblmaier
Ferdinand Grögl
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 EP1199728A2 publication Critical patent/EP1199728A2/fr
Publication of EP1199728A3 publication Critical patent/EP1199728A3/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Withdrawn legal-status Critical Current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
    • H01B7/02—Disposition of insulation
    • H01B7/0258—Disposition of insulation comprising one or more longitudinal lapped 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
    • H01B7/0275—Disposition of insulation comprising one or more extruded layers of insulation
    • H01B7/0283—Disposition of insulation comprising one or more extruded layers of insulation comprising in addition one or more other layers of non-extruded 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
    • H01B7/17—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 present invention relates to an insulated electrical conductor with functional integrity in the event of a fire, an electrical line with functional integrity in the event of a fire and a Method of making an insulated electrical conductor and an electrical one Management.
  • cables are exposed to the flames, they usually burn in the cable existing insulation and sheath materials, provided they are not materials, that dripped completely or partially under the influence of the fire heat are. Residues left on the conductors after the fire may, if not have become conductive due to charring or the action of extinguishing agents, prevent a short circuit between the conductors or an earth fault and thus low operating voltages make emergency operation possible. These residues are however usually not mechanically resilient, so that even the smallest movements like thermal changes in length of the conductor when cooling after the fire or slight vibrations lead to the destruction of the residues and thus the failure of the Effect cable.
  • Cables that must remain operational in the event of a fire for example Cables for emergency systems or the operation of fire extinguishing systems are included Insulated materials that are stable in the event of fire. Additional mineral deposits Layers - such as glass silk tapes - can reduce the insulating ability in the event of a fire maintained. However, extinguishing agents can also reduce insulation become significantly worse.
  • an insulated conductor in which one on the conductor first layer of an inorganic barrier material is applied.
  • This is what it is about is a glass fabric tape, which is reinforced with mica.
  • the mica particles are connected to the glass fabric tape with a silicone resin.
  • the layer can be applied to the conductor by extrusion, as a tape or in some other way.
  • Above the first layer is an abrasion-resistant second layer made of polyimide. Further insulating layers can also be applied to the polyimide layer.
  • One on insulated conductors produced in this way are characterized by a low weight, high abrasion resistance and high flame resistance.
  • a heat-resistant electrical line has a nickel-plated copper conductor made of at least one layer Mica tape and an overlying fiberglass braid is surrounded. About that There is still an overlapping wrapped metal band and glass fiber braid above it is a braid made of metal wires. Such a structure is very expensive and not on the market, or at most for special applications enforceable. In addition, the line is not very flexible and because of the high Heavy metal content.
  • the object of the present invention is an insulated electrical Providing ladder that is flexible, lightweight and inexpensive can be produced.
  • the main advantage of the invention is the fact that by Letting in e.g. two mica tapes in the claimed Overlap de facto three layers of mica are generated on the conductor. Will one Wrapping with a thread or tape made of tensile, flame-resistant material The two belts are provided during production and also in the event of a fire held together.
  • FIG. 1 shows an insulated conductor according to the teaching of the invention shown - with a metallic conductor 1, solid or consisting of individual wires, which is preferably made of copper.
  • the conductor 1 or the individual wires of the conductor can be tinned.
  • the glass silk / mica tape consists of one Glass silk fabric, with which mica particles are connected by means of a silicone resin.
  • the next layer 3 also forms a longitudinal entry with at least 50% Glass fiber / mica tape applied overlap, the overlap seam 2a of the first layer 2 offset by 180 ° to the overlap seam 3a of the second layer 3 is located.
  • the first layer 2 is applied to the conductor 1 so that the mica layer the conductor surface is facing.
  • Two threads 4 and 5 are crosswise on the second Layer 3 wound up.
  • the threads 4 and 5 are preferably glass or carbon threads.
  • a extruded insulating layer 6 forms the outer shell of the insulated conductor.
  • the insulation layer 6 can consist of an inexpensive plastic, e.g. Polyethylene, the However, polyethylene should be flame retardant due to known additives, in order to prevent a fire To prevent the flames from spreading.
  • the more than 50% overlap of layers 2 and 3 results in at least one triple mica layer, which increases the resistance of the conductor to Flame exposure is significantly increased.
  • the threads 4 and 5 ensure that the layers 2 and 3 both during production and in the event of a fire after the insulation 6 is destroyed, maintain its closed position around the conductor 1 and thus the Mica flakes isolate the conductor 1 even during a fire and afterwards surround.
  • the glass portions of layers 2, 3 and optionally 4 and 5 start at to melt at a temperature above 1000 ° C and form with the mica platelets effective insulation at high temperatures.
  • FIG. 2 shows a section through a line with functional integrity in the event of fire, which the four insulated wires 7,8,9 and 10, which are twisted together and one first layer 11 made of a coated glass silk tape, the coating of which an unvulcanized flame-retardant, halogen-free ethylene copolymer compound exists, is surrounded.
  • the layer 11 is intended to act as a flame barrier layer.
  • a drain wire 12 preferably running in the form of a helical line, which is tinned.
  • a second layer 13 made from one side plastic-coated metal tape running lengthways with overlapping tape edges shaped, wherein the bare metal layer contacts the drain wire 12.
  • This second layer 13 serves as a shield.
  • An outer jacket 14 surrounds the shielding layer 13.
  • Each The wire is constructed like the insulated conductor according to FIG. 1.
  • the outer jacket 11 is made expediently made of a flame-retardant plastic e.g. highly filled Polyethylene.
  • Figure 3 shows a schematic representation of a manufacturing method for a Line as shown in Figure 2.
  • the metallic conductor 1 is from a supply coil or a storage container 15 peeled off and first from a glass silk / mica tape forming the first layer 2 wrapped lengthways, the one that supports the mica layer Surface of the glass silk / mica tape facing the conductor surface.
  • the bandwidth of the fiberglass / mica tape is dimensioned so that it is at least the same is 1.5 times the circumference of the conductor 1.
  • Forming the from a supply spool 16 stripped glass silk / mica tape is done by a coaxial to the continuous conductor 1 arranged tube, not shown. The same way becomes the glass layer / mica tape which forms the second layer 3 and is drawn off from a supply spool 17 around the first layer 2.
  • the second layer 3 is placed on the first layer 2 so that the overlaps are diametrically opposed to each other. Layers 2 and 3 thus form a three layer Layer containing mica.
  • the stranded composite 22 is in an extruder 23 with the outer jacket 14 and the finished line on a supply spool 24 wound.
  • the means for applying the glass silk ribbon 11 of the drain wire 12, and the shield 13 are omitted for the sake of clarity. Such means are known in cable and wire technology.
  • the extruder 19 can also be an extruder with four mouthpieces. At this Execution with the first layer 2, the second layer 3 and the threads 4th and 5 provided conductor 1 coated with the insulation 6 and after the Pass through the cooling pool 20 stranded.

Landscapes

  • Insulated Conductors (AREA)
EP01402422A 2000-10-20 2001-09-21 Conducteur electrique isolé continuant à fonctionner en cas d'incendie Withdrawn EP1199728A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10051962 2000-10-20
DE10051962A DE10051962A1 (de) 2000-10-20 2000-10-20 Isolierter elektrischer Leiter mit Funktionserhalt im Brandfall

Publications (2)

Publication Number Publication Date
EP1199728A2 true EP1199728A2 (fr) 2002-04-24
EP1199728A3 EP1199728A3 (fr) 2003-12-17

Family

ID=7660402

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01402422A Withdrawn EP1199728A3 (fr) 2000-10-20 2001-09-21 Conducteur electrique isolé continuant à fonctionner en cas d'incendie

Country Status (3)

Country Link
US (1) US6747214B2 (fr)
EP (1) EP1199728A3 (fr)
DE (1) DE10051962A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1215687B1 (fr) * 2000-12-12 2005-10-12 Studer Draht-und Kabelwerk AG Procédé de production d'un cable et cable produit selon ledit procédé
EP1619694A1 (fr) * 2004-07-23 2006-01-25 Nexans conducteur électrique isolé continuant à fonctionner en cas d'incendie
CN104299691A (zh) * 2014-10-14 2015-01-21 济南圣通电力线缆有限公司 一种柔性防火电缆
WO2016051256A1 (fr) * 2014-10-03 2016-04-07 Setic Sas Procédé de fabrication par double torsion d'un câble anti-feu à toron de cuivre-mica, lyre adaptée et ligne de fabrication adaptée, câble anti-feu obtenu

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10203900A1 (de) 2002-01-31 2003-08-14 Nexans Elektrische Leitung
US7240425B2 (en) * 2003-04-24 2007-07-10 Amphenol Corporation Method of making an electrical connection to a conductor on an inner layer of a multi-layer printed circuit board
EP1649471B1 (fr) * 2003-07-25 2016-09-07 Prysmian S.p.A. Procede continu de fabrication de cables electriques
DE102004010923B8 (de) * 2004-03-06 2006-06-01 Dal Maso-Camenen, André Ruben Leiter für Audiokabel
US20080189940A1 (en) * 2007-02-14 2008-08-14 Superior Essex Communications Lp Communication cable with an asymmetrically clad steel shield
US7939764B2 (en) * 2007-09-25 2011-05-10 Samuel Gottfried Fire, heat and high voltage cable protection wrap
US20130284954A1 (en) * 2012-04-27 2013-10-31 Hamilton Sundstrand Corporation High temperature servo valve actuator
ITMI20121178A1 (it) 2012-07-05 2014-01-06 Prysmian Spa Cavo elettrico resistente a fuoco, acqua e sollecitazioni meccaniche
EP2973613B1 (fr) * 2013-03-15 2017-10-18 CommScope, Inc. of North Carolina Câble blindé possédant un environnement de paires de câbles utp
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
CN107527690A (zh) * 2016-06-17 2017-12-29 日立金属株式会社 绝缘电线和电缆
US10354779B2 (en) * 2017-03-31 2019-07-16 Radix Wire & Cable, Llc Free air fire alarm cable
CN107731377A (zh) * 2017-11-16 2018-02-23 江苏凯达电缆有限公司 一种矿物质绝缘耐抗拉耐阻燃计算机软电缆
JP6870642B2 (ja) * 2018-03-28 2021-05-12 住友電装株式会社 複合ケーブル対
US11791067B2 (en) * 2019-08-29 2023-10-17 Corning Research & Development Corporation Methods for bonding stranded cable subunits to central member
US20220285046A1 (en) * 2020-07-07 2022-09-08 James Cheng Lee Cable and manufacturing method thereof
US20220013251A1 (en) * 2020-07-07 2022-01-13 James Cheng Lee Cable and manufacturing method thereof
CN214847854U (zh) * 2021-06-12 2021-11-23 开开电缆科技有限公司 一种柔性防火电缆
CN115331877A (zh) * 2022-07-28 2022-11-11 武汉武湖电缆有限公司 一种柔性矿物质绝缘电缆及其制造工艺

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JPS54131791A (en) * 1978-04-04 1979-10-13 Meidensha Electric Mfg Co Ltd Lead wire
EP0100829A2 (fr) * 1982-08-06 1984-02-22 AEG KABEL Aktiengesellschaft Câble ignifugé, exempt d'halogènes, continuant à fonctionner un certain temps en cas d'incendie
FR2573910A1 (fr) * 1984-11-29 1986-05-30 Habia Cable Revetement isolant souple resistant au feu pour conduites, fils et cables electriques
JPH05325655A (ja) * 1992-05-20 1993-12-10 Kurabe Ind Co Ltd 耐熱耐湿絶縁電線
JPH08287737A (ja) * 1995-04-17 1996-11-01 Yazaki Corp 耐火電線

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EP0040035A1 (fr) * 1980-05-08 1981-11-18 BICC Limited Câbles électriques
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Publication number Priority date Publication date Assignee Title
JPS54131791A (en) * 1978-04-04 1979-10-13 Meidensha Electric Mfg Co Ltd Lead wire
EP0100829A2 (fr) * 1982-08-06 1984-02-22 AEG KABEL Aktiengesellschaft Câble ignifugé, exempt d'halogènes, continuant à fonctionner un certain temps en cas d'incendie
FR2573910A1 (fr) * 1984-11-29 1986-05-30 Habia Cable Revetement isolant souple resistant au feu pour conduites, fils et cables electriques
JPH05325655A (ja) * 1992-05-20 1993-12-10 Kurabe Ind Co Ltd 耐熱耐湿絶縁電線
JPH08287737A (ja) * 1995-04-17 1996-11-01 Yazaki Corp 耐火電線

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Title
PATENT ABSTRACTS OF JAPAN vol. 003, no. 150 (E-158), 11. Dezember 1979 (1979-12-11) & JP 54 131791 A (MEIDENSHA ELECTRIC MFG CO LTD), 13. Oktober 1979 (1979-10-13) *
PATENT ABSTRACTS OF JAPAN vol. 018, no. 137 (E-1518), 7. März 1994 (1994-03-07) & JP 05 325655 A (KURABE IND CO LTD), 10. Dezember 1993 (1993-12-10) *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 03, 31. März 1997 (1997-03-31) & JP 08 287737 A (YAZAKI CORP), 1. November 1996 (1996-11-01) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1215687B1 (fr) * 2000-12-12 2005-10-12 Studer Draht-und Kabelwerk AG Procédé de production d'un cable et cable produit selon ledit procédé
EP1619694A1 (fr) * 2004-07-23 2006-01-25 Nexans conducteur électrique isolé continuant à fonctionner en cas d'incendie
WO2016051256A1 (fr) * 2014-10-03 2016-04-07 Setic Sas Procédé de fabrication par double torsion d'un câble anti-feu à toron de cuivre-mica, lyre adaptée et ligne de fabrication adaptée, câble anti-feu obtenu
FR3026889A1 (fr) * 2014-10-03 2016-04-08 Setic Procede de fabrication par double torsion d'un cable anti-feu a toron de cuivre-mica, lyre adaptee et ligne de fabrication adapteee, cable anti-feu obtenu
CN104299691A (zh) * 2014-10-14 2015-01-21 济南圣通电力线缆有限公司 一种柔性防火电缆

Also Published As

Publication number Publication date
US6747214B2 (en) 2004-06-08
EP1199728A3 (fr) 2003-12-17
DE10051962A1 (de) 2002-05-02
US20020046871A1 (en) 2002-04-25

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