EP1045401B1 - cable resistant aux flammes - Google Patents

cable resistant aux flammes Download PDF

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Publication number
EP1045401B1
EP1045401B1 EP19990400932 EP99400932A EP1045401B1 EP 1045401 B1 EP1045401 B1 EP 1045401B1 EP 19990400932 EP19990400932 EP 19990400932 EP 99400932 A EP99400932 A EP 99400932A EP 1045401 B1 EP1045401 B1 EP 1045401B1
Authority
EP
European Patent Office
Prior art keywords
flame
outer jacket
resistant cable
core
cable
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
EP19990400932
Other languages
German (de)
English (en)
Other versions
EP1045401A1 (fr
Inventor
Alexander Weiss
Klaus Nothofer
Christoph Chojetzki
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.)
Draka Comteq BV
Original Assignee
Draka Comteq BV
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 Draka Comteq BV filed Critical Draka Comteq BV
Priority to DE59913983T priority Critical patent/DE59913983D1/de
Priority to ES99400932T priority patent/ES2275331T3/es
Priority to EP19990400932 priority patent/EP1045401B1/fr
Publication of EP1045401A1 publication Critical patent/EP1045401A1/fr
Application granted granted Critical
Publication of EP1045401B1 publication Critical patent/EP1045401B1/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
    • H01B7/29—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 flame-resistant cable according to the preamble of claim 1.
  • EP 0 002 397 discloses a cable resistant to fire propagation with a group of electrically insulated conductors and an outer polyvinylchloride protective sheath in which a layer of powdered flame retardant is provided between the group of conductors and the outer protective sheath.
  • the flame retardant consists of a halogen-containing compound z.
  • a halogen-containing compound z For example, polyvinyl chloride, chlorinated polyethylene, etc. powders prevent this. However, this cable will release halogen-containing gases that can cause corrosion and damage to health.
  • a flame-resistant cable which z. B. to be installed in ceiling spaces of buildings.
  • a cladding system surrounding the cable core has a thermal conductivity of 0.0004 to 0.004 Icm / cm 2 5 ° C.
  • the inner layer is a layer of fibrous material, e.g. B. aramid fibers having a low air permeability and a heat absorption capacity of about 0.45.
  • the outer jacket of this known cable is made of a fluoropolymer plastic.
  • Such cables are usually laid in the false ceilings of buildings (plenum cables). If a fire breaks out in such buildings and penetrates the area of the false ceiling, the fire, if combustible material is located in the false ceiling space, can quickly spread over the entire floor and u. U. may also move to other floors.
  • the cables mentioned above are able to restrict the spread of the flames, the spread of the gases or vapors can not be prevented. Above a certain temperature, the cladding materials decompose, producing flammable gases which then promote the spread of the flames.
  • the present invention has for its object to provide a cable which excludes a flame propagation and avoids the spread of environmentally hazardous gases.
  • An essential feature of the invention is the use of an outer sheath made of metal. Although metallic sheaths for cables have long been known, a plastic sheath was always extruded as an outer sheath on the metal sheath.
  • an outer sheath made of metal has the advantage that overheating of the interior of the cable is less strong, since the metal shell on the one hand reflects the heat energy on the other hand due to the good thermal conductivity dissipates the heat in the longitudinal direction of the cable ,
  • the corrugation of the outer shell is achieved that the soul and the inner shell is fixed and beyond the cable is flexible.
  • the cable has a long service life even in a humid environment. Due to the high melting point of stainless steel, the cable remains functional even at high temperatures.
  • the inner sheath ensures due to the flame-retardant halogen-free highly filled plastic that in case of overheating of the outer sheath, the cable core, the characteristics of polymeric materials such.
  • B. contains polyethylene and is therefore not flame retardant, a contact between the hot outer shell and the conductors is avoided because forms a scaffold of inorganic materials in highly filled plastics, which acts as a permanent spacer for the soul to the outer shell.
  • the figure shows a side view of a portion of a cable according to the teachings of the invention.
  • the optical waveguides 1a are optical glass fibers which are coated with a plastic layer. Usually used as a material for the plastic layer UV-curable plastics z. B. acrylate-based.
  • the plastic sheath 1 a may consist of polyethylene, polybutene, polyamide and similar plastics.
  • the optical waveguides 1 b may also be plastic optical fibers. Instead of a core 1 with optical waveguides 1 b and 1 Aderhülle1b and a plurality of electrical conductors for data transmission or power transmission within the protective cover 2 may be arranged.
  • the protective cover 2 consists of an inner jacket 2a which is extruded onto the core 1.
  • a highly filled flameproof plastic mixture is used, for. B. based on ethylene copolymer, the Aluminiumtrioxihydrat is admixed.
  • a layer 2b made of a fire-resistant material such as a glass silk tape or a mica tape may be wound with overlapping tape edges.
  • the outer jacket 2c is a longitudinally welded and corrugated metal shell whose wave troughs rest on the layer 2b and fix the interior of the cable consisting of core 1, inner jacket 2a and layer 2b.
  • the material used for the outer jacket is stainless steel.
  • Such a cable is particularly advantageous for laying in particularly fire-prone areas such.
  • the interior of the cable can heat up, which can lead to decomposition of the plastic of the inner shell 2a.
  • the constituents of the filler are retained and form a framework between the core 1 and the outer shell 2c.
  • the layer 2b of refractory material holds the framework together.

Landscapes

  • Insulated Conductors (AREA)
  • Details Of Indoor Wiring (AREA)

Claims (5)

  1. Câble résistant aux flammes, qui résiste à la propagation de flammes et au développement de fumée, comportant une âme (1) dotée d'au moins un conducteur isolé par de la matière plastique et/ou d'au moins un guide d'ondes lumineuses (1b), et une gaine extérieure (2c), qui est un tube métallique entourant l'âme, dans lequel une gaine intérieure (2a) est disposée entre l'âme (1) et la gaine extérieure (2c), caractérisé en ce que la gaine intérieure (2a) est constituée d'une matière plastique ignifugée ayant une haute teneur en matériaux de remplissage, en ce qu'un enroulement (2b) en un matériau résistant à la température, par exemple une bande de verre textile, une bande de mica, etc., est disposé entre la gaine intérieure (2a) et la gaine extérieure (2c), et en ce que l'enroulement (2b) est appliqué avec des bords de bande se recouvrant.
  2. Câble résistant aux flammes selon la revendication 1, caractérisé en ce que la gaine extérieure (2c) est un tube métallique ondulé.
  3. Câble résistant aux flammes selon la revendication 1, caractérisé en ce que le tube métallique constituant la gaine extérieure (2c) est soudé par un cordon de soudure longitudinal.
  4. Câble résistant aux flammes selon la revendication 1, caractérisé en ce que la gaine extérieure (2c) est constituée d'un métal résistant à la chaleur et à la corrosion.
  5. Câble résistant aux flammes selon la revendication 1, caractérisé en ce que la gaine extérieure est en acier inoxydable.
EP19990400932 1999-04-15 1999-04-15 cable resistant aux flammes Expired - Lifetime EP1045401B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE59913983T DE59913983D1 (de) 1999-04-15 1999-04-15 Flammbeständiges Kabel
ES99400932T ES2275331T3 (es) 1999-04-15 1999-04-15 Cable ignifugo.
EP19990400932 EP1045401B1 (fr) 1999-04-15 1999-04-15 cable resistant aux flammes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19990400932 EP1045401B1 (fr) 1999-04-15 1999-04-15 cable resistant aux flammes

Publications (2)

Publication Number Publication Date
EP1045401A1 EP1045401A1 (fr) 2000-10-18
EP1045401B1 true EP1045401B1 (fr) 2006-11-15

Family

ID=8241945

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990400932 Expired - Lifetime EP1045401B1 (fr) 1999-04-15 1999-04-15 cable resistant aux flammes

Country Status (3)

Country Link
EP (1) EP1045401B1 (fr)
DE (1) DE59913983D1 (fr)
ES (1) ES2275331T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES1184958Y (es) 2017-05-29 2017-08-30 Llona Maria Iciar Zubelzu Cubierta de protección ignífuga para cables
DE102017129020A1 (de) * 2017-12-06 2019-06-06 Südkabel GmbH Kabel mit Brandschutzschicht
CN113707383B (zh) * 2021-08-24 2023-04-11 安徽华上电缆科技有限公司 一种无卤低烟阻燃环保型防火电缆
CN113707384B (zh) * 2021-09-13 2023-11-10 安徽华上电缆科技有限公司 一种高阻燃耐火型抗电磁屏蔽计算机仪表电缆

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1109403A (en) * 1966-03-31 1968-04-10 Decca Ltd Improvements in or relating to position indicators for use in mobile craft
US4154976A (en) * 1977-10-25 1979-05-15 General Cable Corporation Flame retardant inside wiring cable made with an annealed metal sheath
DE2907473A1 (de) * 1979-02-26 1980-09-04 Kabel Metallwerke Ghh Elektrisches kabel
BE884204R (fr) * 1980-07-07 1980-11-03 Belge Pour La Fabrication Des Cable resistant au feu
GB2247340B (en) * 1990-08-24 1994-06-15 Stc Plc Limited fire hazard cable
JPH04106815A (ja) * 1990-08-27 1992-04-08 Hitachi Cable Ltd 耐火ケーブルの製造方法
JPH07274351A (ja) * 1994-03-29 1995-10-20 Sankei Seisakusho:Kk 可撓金属電線管

Also Published As

Publication number Publication date
ES2275331T3 (es) 2007-06-01
EP1045401A1 (fr) 2000-10-18
DE59913983D1 (de) 2006-12-28

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