EP0663100B1 - Brandschutzhülle und verfahren zur erzeugung derselben - Google Patents

Brandschutzhülle und verfahren zur erzeugung derselben Download PDF

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Publication number
EP0663100B1
EP0663100B1 EP94923744A EP94923744A EP0663100B1 EP 0663100 B1 EP0663100 B1 EP 0663100B1 EP 94923744 A EP94923744 A EP 94923744A EP 94923744 A EP94923744 A EP 94923744A EP 0663100 B1 EP0663100 B1 EP 0663100B1
Authority
EP
European Patent Office
Prior art keywords
cables
sheath
thermal
bundles
braiding
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
EP94923744A
Other languages
English (en)
French (fr)
Other versions
EP0663100A1 (de
Inventor
Didier Matarin
Charles Maillard
Guy Gaillard
Michel Peltot
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.)
Societe Europeenne de Propulsion SEP SA
Safran Electrical and Power SAS
Original Assignee
Societe Europeenne de Propulsion SEP SA
Labinal 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 Societe Europeenne de Propulsion SEP SA, Labinal SA filed Critical Societe Europeenne de Propulsion SEP SA
Publication of EP0663100A1 publication Critical patent/EP0663100A1/de
Application granted granted Critical
Publication of EP0663100B1 publication Critical patent/EP0663100B1/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
    • H01B7/17—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
    • 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
    • H01B7/182—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments
    • H01B7/183—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments forming part of an outer sheath

Definitions

  • the present invention relates to a fire-resistant sheath intended mainly for thermal fire and mechanical protection of cables, in particular in the aeronautical, space and industrial fields.
  • the cables or cable harnesses ensuring the electrical connections within mechanical or electronic assemblies are liable to be subjected, over shorter or longer periods, to high temperatures higher than those specified by the manufacturers of the products concerned. In most cases, this results in an interruption of these links which can directly or indirectly lead to destruction of the equipment used.
  • the loss of an essential function can lead to mission failure with the resulting financial consequences and in the aeronautics field, the decommissioning of essential equipment such as emergency lighting for example is the direct cause of loss of life when aircraft crash on the ground.
  • the aim of the present invention is therefore to alleviate all of the aforementioned drawbacks and to provide protection at very high temperature (up to about 850 ° C.) from all kinds of cables, cables and cable harnesses, which is universal, that is to say that can be implemented in any type of industry, in particular to replace current space coatings and certain aeronautical cold protections.
  • Another object of the invention is to produce a sheath that does not require complex installation on the integration site.
  • Yet another object of the invention is to provide this thermal and mechanical protection in a very small footprint.
  • a thermal and mechanical protective sheath for cables and cable bundles obtained directly by braiding around the element to be protected comprising a very dense layer of braiding son constituted by several elementary strands formed by interlacing of synthetic fibers obtained after cracking and spinning an aramid fiber and a carbonizable oxidized organic fiber.
  • the sheath according to the invention may comprise one or more other braided layers superimposed on the initial layer, the braiding configurations of the various layers may be different.
  • this sheath will preferably include an additional layer intended to remove the fibrous residues resulting from the cracking operation.
  • an additional layer intended to remove the fibrous residues resulting from the cracking operation.
  • FIG. 1 is a schematic representation of a braiding loom for the realization of the thermal protection sheath according to the invention.
  • a loom 1 conventionally comprises, mounted on a support 10, wire supply coils 12 and a supply well 14 from which the element to be braided comes out 2.
  • the braiding wire 3 present on the various supply coils is braided directly around the element to be protected 4 leaving the well of the braiding loom.
  • This element can consist of a single cable of any diameter, the current trades allowing the production of sheaths from 2 to more than 40 mm in diameter, or even a bundle of cables like those illustrated in FIGS. 2 and 3.
  • the braiding yarn consists of several elementary strands formed by interlacing of synthetic fibers obtained after cracking and spinning of an aramid fiber and an oxidizable carbonisable organic fiber.
  • Aramid fiber has very good mechanical characteristics and excellent heat resistance (these can be products known under the names of "Kevlar”, “Twaron” or “Technora”).
  • the carbonizable oxidized organic fiber, in particular based on polyacrylonitrile, is a thread known for example under the name of "Sigrafil". After cracking, these two threads are preferably used respectively for 30 and 70% in the manufacture of an elementary strand at the base of the braiding thread. This preferential report does not exclude a different ratio to the extent that a preponderance is left to the oxidized organic fiber.
  • this elementary strand it may be necessary to combine with the synthetic fiber obtained previously another fiber having specific characteristics adapted to this application. For example, if it is desired to improve the thermal properties by conduction of the sheath, the use of a material having, for example, good thermal resistivity, in addition to the aforementioned synthetic fiber, proves to be particularly judicious. It should be noted that this addition of an additional wire material can be carried out during braiding by loading one or more supply coils with this specific material, the other coils receiving the synthetic fiber obtained from the initial treatment.
  • a first layer of thermal protection is then obtained simply by braiding with a determined braiding angle and from a number of predefined coils, the braiding wire produced previously. If necessary, one or more additional layers can be braided on this first layer, adopting an identical or different braiding angle.
  • thermal protection layer In applications where the pollution constraints are high, for example in the space field, it may be necessary to cover the thermal protection layer (s) with an additional layer making it possible to remove the barbs present at the level of the synthetic fiber. and from the cracking process.
  • An additional braiding based on aramid yarn such as Nomex may be perfectly suitable for such pollution protection.
  • a specific impregnation of the sheath is also possible.
  • Another solution, not requiring the use of an additional layer consists in purifying the elementary strands, before any braiding (by combing for example).
  • the braiding step c) is repeated at least a second time, possibly with a braiding configuration distinct from the previous one.
  • this process includes an additional step: d) consisting either in covering the sheath thus braided with an additional layer of another clean room compatible wire of the "Nomex" type, or in making a specific impregnation on the sheath thus braided, this impregnation ensuring a leak-tightness of liquids which can come into contact with this sheath.
  • An alternative solution exists by inserting a complementary step between steps a) and b) consisting of combing the elementary strands in order to thus carry out a purification of the wire to be braided.
  • Figures 2a to 2c and 3a to 3c show two embodiments of a braiding of a sheath surrounding a bundle of cables 20 comprising a main strand 21 on which are grafted several auxiliary branches 22, 23, 24 forming like a fork with the main strand (see Figures 2a and 3a).
  • the braiding of the auxiliary branches which are covered with a sheath 4 is carried out first, this braiding being carried out until encompassing holding accessories 30 (ribbons, chard , etc) arranged at the junctions of the main strand. Then, the main strand can be braided in one go, the sheath 40 then covering the part of the previous braiding covering the retaining tapes. Item referenced 41 corresponds to what is commonly called the braiding tail, which can become a means of fixing the sheath on its receiving structure.
  • the first braiding of the free ends of the cable bundle is carried out, that is to say of the auxiliary branches 22 to 24 and of the end of the main strand 25
  • the main strand 21 is braided, which will cover the unprotected parts of the cable bundle, a round trip 45 being made at the junctions with the auxiliary branches to ensure maximum optical coverage without interrupting the braiding.

Landscapes

  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
  • Ropes Or Cables (AREA)

Claims (9)

  1. Hülle zum thermischen und mechanischen Schutz von Kabeln und Kabelbündeln, die durch unmittelbares Umflechten des zu schützenden Elements erhalten wurde, dadurch gekennzeichnet, daß sie eine geflochtene Lage aus Flechtfäden aufweist, die aus mehreren Elementaradern gebildet sind, die durch Verflechten von Kunstfasern geformt sind, die nach dem Spalten und Spinnen aus einer Aramidfaser und einer oxydierten, verkohlbaren, organischen Faser erhalten wurden.
  2. Hülle zum thermischen und mechanischen Schutz von Kabeln und Kabelbündeln, nach Anspruch 1, dadurch gekennzeichnet, daß die organische, oxydierte, verkohlbare Faser den größeren Teil der Kunstfasern bildet, die die Elementarader des Flechtfasern bilden.
  3. Hülle zum thermischen und mechanischen Schutz von Kabeln und Kabelbündeln, nach Anspruch 1 oder Anspruch 2, dadurch gekennzeichnet, daß ein Material in Form eines ergänzenden Fadens den genannten beiden Kunstfäden zugeordnet ist, um die Elementaradern zu bilden.
  4. Hülle zum thermischen und mechanischen Schutz von Kabeln und Kabelbündeln, nach Anspruch 3, dadurch gekennzeichnet, daß dieses ergänzende Material ein Material ist, das die thermischen Schutzeigenschaften durch übertragung verbessert.
  5. Hülle zum thermischen und mechanischen Schutz von Kabeln und Kabelbündeln, nach irgendeinem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die so geflochtene Hülle von einem Geflecht auf der Grundlage von Aramidfasern abgedeckt ist.
  6. Hülle zum thermischen und mechanischen Schutz von Kabeln und Kabelbündeln, nach Anspruch 1, dadurch gekennzeichnet, daß sie eine oder mehrere andere geflochtene Lagen aufweist, die über der anfänglichen Lage liegen, wobei die Ausbildungen der Flechtung der verschiedenen Lagen unterschiedlich sein können.
  7. Hülle zum thermischen und mechanischen Schutz von Kabeln und Kabelbündeln, nach Anspruch 1 oder Anspruch 6, dadurch gekennzeichnet, daß sie eine zusätzliche Lage aufweist, die dazu bestimmt ist, faserige Rückstände zu neutralisieren, die sich aus dem Spaltvorganag ergeben haben.
  8. Hülle zum thermischen und mechanischen Schutz von Kabeln und Kabelbündeln, nach Anspruch 7, dadurch gekennzeichnet, daß diese zusätzliche Lage auf der Grundlage von Aramidfasern geflochten ist.
  9. Hülle zum thermischen und mechanischen Schutz von Kabeln und Kabelbündeln, nach Anspruch 7, dadurch gekennzeichnet, daß diese zusätzliche Lage durch eine besondere Imprägnierung der Hülle ausgeführt ist, die für sie außerdem eine Abdichtung gegenüber Spritzwasser sicherstellt.
EP94923744A 1993-07-30 1994-07-27 Brandschutzhülle und verfahren zur erzeugung derselben Expired - Lifetime EP0663100B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9309406A FR2708781B1 (fr) 1993-07-30 1993-07-30 Gaine anti-feu et procédé d'élaboration de cette gaine.
FR9309406 1993-07-30
PCT/FR1994/000941 WO1995004358A1 (fr) 1993-07-30 1994-07-27 Gaine anti-feu et procede d'elaboration de cette gaine

Publications (2)

Publication Number Publication Date
EP0663100A1 EP0663100A1 (de) 1995-07-19
EP0663100B1 true EP0663100B1 (de) 1997-04-09

Family

ID=9449796

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94923744A Expired - Lifetime EP0663100B1 (de) 1993-07-30 1994-07-27 Brandschutzhülle und verfahren zur erzeugung derselben

Country Status (6)

Country Link
US (1) US5604331A (de)
EP (1) EP0663100B1 (de)
CA (1) CA2145504C (de)
DE (1) DE69402522T2 (de)
FR (1) FR2708781B1 (de)
WO (1) WO1995004358A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2744077C1 (ru) * 2020-01-10 2021-03-02 Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") Способ изготовления многопроволочной упругой оболочки

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19742092A1 (de) * 1997-09-24 1999-03-25 Bosch Gmbh Robert Elektrisch leitendes Kabel
FR2796198B1 (fr) * 1999-07-07 2001-10-19 Labinal Gaine de protection thermique pour un faisceau de cables electriques
RU2153722C1 (ru) * 1999-11-02 2000-07-27 Ооо "Лирсот" Изоляционное покрытие
US6668980B2 (en) * 2001-07-06 2003-12-30 Thyssen Elevator Capital Corp. Elevator car isolation system and method
DE102004051594A1 (de) * 2004-10-22 2006-05-04 CCS Technology, Inc., Wilmington Kabel, Verfahren zur Herstellung eines Kabels und Verfahren zur Ortung eines Kabels
CA2487132C (en) * 2004-11-26 2012-01-10 Petrospec Engineering Ltd. Braided thermocouple cable bundle
US9129503B2 (en) * 2012-11-07 2015-09-08 Malcolm Larry Borlenghi Locking GPS device for locating children
US20140124389A1 (en) * 2012-11-07 2014-05-08 Malcolm Larry Borlenghi Apparatus for housing a GPS device for locating children
JP6975038B2 (ja) 2014-08-13 2021-12-01 ジェネラル・ケーブル・テクノロジーズ・コーポレーション 耐放射線及び耐熱ケーブル
CN108899139A (zh) * 2018-06-13 2018-11-27 江西瑞金金字电线电缆有限公司 一种航空电缆保护套的编织方法
CN119381056B (zh) * 2024-12-27 2025-03-25 浙江天杰实业股份有限公司 一种轻质高柔性耐弯曲的轨道交通用多芯数据传输电缆及其制备方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1515626A1 (de) * 1965-10-15 1969-08-28 Lisa Draexlmaier Fa Herstellung von Kabelbaeumen
CA993966A (en) * 1974-06-21 1976-07-27 Canada Wire And Cable Limited High temperature electrical cable
USRE30414E (en) * 1974-10-21 1980-10-07 Toray Industries, Inc. Process for producing a high tensile strength, high Young's modulus carbon fiber having excellent internal structure homogeneity
US4051324A (en) * 1975-05-12 1977-09-27 Haveg Industries, Inc. Radiation resistant cable and method of making same
FR2436841A1 (fr) * 1978-09-22 1980-04-18 Rhone Poulenc Textile Nouveau type de cordage, cable et procede pour sa fabrication
DE2948031C2 (de) * 1979-11-29 1983-01-27 Klasing Gmbh & Co Elektroisolierungen, 8070 Ingolstadt Temperaturstabile Schaltleitung für elektrische Wärmegeräte
US5075514A (en) * 1990-08-14 1991-12-24 Thermex, Inc. Insulated thermocouple
US5171635A (en) * 1990-10-10 1992-12-15 E. I. Du Pont De Nemours And Company Composite wire construction
US5227586A (en) * 1991-10-07 1993-07-13 Harbour Industries, (Canada) Ltd. Flame resistant electric cable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2744077C1 (ru) * 2020-01-10 2021-03-02 Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") Способ изготовления многопроволочной упругой оболочки

Also Published As

Publication number Publication date
WO1995004358A1 (fr) 1995-02-09
EP0663100A1 (de) 1995-07-19
US5604331A (en) 1997-02-18
DE69402522D1 (de) 1997-05-15
CA2145504A1 (en) 1995-02-09
FR2708781B1 (fr) 1996-01-19
FR2708781A1 (fr) 1995-02-10
DE69402522T2 (de) 1997-07-31
CA2145504C (en) 2002-12-17

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