DE2742365A1 - Electric cable with extruded silicon rubber insulation - has flame resistant properties improved by mixing in asbestos or glass fibres - Google Patents
Electric cable with extruded silicon rubber insulation - has flame resistant properties improved by mixing in asbestos or glass fibresInfo
- Publication number
- DE2742365A1 DE2742365A1 DE19772742365 DE2742365A DE2742365A1 DE 2742365 A1 DE2742365 A1 DE 2742365A1 DE 19772742365 DE19772742365 DE 19772742365 DE 2742365 A DE2742365 A DE 2742365A DE 2742365 A1 DE2742365 A1 DE 2742365A1
- Authority
- DE
- Germany
- Prior art keywords
- insulation
- asbestos
- silicon rubber
- mixing
- glass fibres
- 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- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
- H01B3/08—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances quartz; glass; glass wool; slag wool; vitreous enamels
- H01B3/082—Wires with glass or glass wool
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
- H01B3/06—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances asbestos
- H01B3/065—Wires with asbestos
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Insulated Conductors (AREA)
- Organic Insulating Materials (AREA)
Abstract
Description
Elektrisches Kabel mit einer flammwidrigen Kunststoff-Electrical cable with a flame retardant plastic
isolierung Die Erfindung befaßt sich mit der Verbesserung der mechanischen Eigenschaften der Isolierung und/oder des Mantels von isolierten elektrischen Leitern, elektrischen Kabeln oder Leitungen im Ilinblick auf den Brandfall.insulation The invention is concerned with improving the mechanical Properties of the insulation and / or the sheath of insulated electrical conductors, electrical cables or lines in the ilin view of the fire.
Auf dem Gebiet der elektrischen Kabel und Leitungen werden für die Isolierung und Urmantelung der elektrischen Leiter, der Adern und der Kabelseele unterschiedliche Werkstoffe eingesetzt; die Auswahl der werkstoffe hängt u. a. von dem vorgesehenen Einsatzzweck, d. h. von den inneren und äußeren Bedingungen beim Petrieb des Kabels oder der Leitung ab. Es sind Isolierstoffe bekannt, die eine höhere Temperaturbeständigkeit als die häufig eingesetzten Werkstoffe Polyvinylchlorid und Polyäthylen haben. Hierzu gehören u. a. die Silikonkautschuke, die dauernd einer Umgebungstemperatur von bis zu 200 °C ausgesetzt werden können (Zeitschrift "Insulation/Circuits", Aug. 1974, Seite 48). Ein Nachteil dieses Werkstoffes ist aber in seiner verhältnismäßig niedrigen mechanischen Festigkeit zu sehen sowie in einer Zersetzung des Silikongummis zu poröser, abbröckelnder Kieselsäure im Brandfall.In the field of electrical cables and wires are used for Insulation and sheathing of the electrical conductors, the wires and the cable core different materials used; the choice of materials depends, among other things, on from the intended use, d. H. of the internal and external conditions at Operation of the cable or line. There are insulating materials known that one higher temperature resistance than the commonly used materials polyvinyl chloride and polyethylene. These include the silicone rubbers, the permanent one Can be exposed to ambient temperatures of up to 200 ° C (magazine "Insulation / Circuits", Aug. 1974, page 48). However, one disadvantage of this material is that it is proportionate low mechanical strength as well as decomposition of the silicone rubber to porous, crumbling silica in the event of fire.
Es ist an sich bekannt, Kunststoffe, insbesondere auch solche, die zur Isolierung und Ummantelung elektrischer Kabel und eitungen eingesetzt werden, durch geeignete Zusätze flammwidrig auszubilden. Elierbei wird die EntzUndbarkeit oder Entflammbarkeit der Kunststoffe durch die Zusätze vermindert (DT-Z "Kunststoffe", 1977, Seite 34 ff.). Weiterhin ist es bekannt, im Rahmen eines vorbeugenden Brandschutzes anstelle von Polyäthylen oder Polyvinylchlorid Silikone oder Silikon in Kombination mit Glasseide einzusetzen (ETZ-P, 1976, Seite 249, Tabelle l). Weiterhin ist es allgemein bekannt, zur Erhöhung der Festigkeit von Kunststoffen, die zu mechanisch tragenden Teilen verarbeitet werden, in diese Kunststoffe Verstärkungsfasern aus Glas einzubringen (DT-Z "Kunststoffe", 1972, Seite 703 ff.).It is known per se, plastics, especially those that are used for the insulation and sheathing of electrical cables and lines, to be made flame-retardant by suitable additives. Elierbei becomes inflammability or flammability of the Plastics reduced by the additives (DT-Z "Kunststoffe", 1977, page 34 ff.). It is also known in the context of a preventive fire protection instead of polyethylene or polyvinyl chloride silicones or use silicone in combination with fiberglass (ETZ-P, 1976, page 249, table l). Furthermore, it is well known to increase the strength of plastics, which are processed into mechanically load-bearing parts, reinforcing fibers in these plastics to be introduced from glass (DT-Z "Kunststoffe", 1972, page 703 ff.).
Der Erfindung liegt die Aufgabe zugrunde, die mechanische Festigkeit einer aus einem extrudierten, flammwidrigen Kunststoff, insbesondere aus Silikonkautschuk bestehenden Isolierung und/oder eines Mantels eines elektrischen leiters, eines elektrischen Kabels oder einer elektrischen Leitung im Jiinblick auf den Brandfall zu verbessern.The invention is based on the object of mechanical strength one made of an extruded, flame-retardant plastic, in particular made of silicone rubber existing insulation and / or a sheath of an electrical conductor, a electrical cable or an electrical line in view of the fire to improve.
Zur Lösung dieser Aufgabe sind gemäß der Erfindung in der Isoliering und/oder dem Mantel aus flammwidrigem Kunststoff AsbeFt-und/oder Clasfasern gleichmäßig über den Querschnitt verteilt angeordnet.To solve this problem are according to the invention in the Isoliering and / or the jacket made of flame-retardant plastic AsbeFt and / or Clas fibers evenly Arranged distributed over the cross section.
Bei einer derartigen Ausgestaltung der Isolierung und/oder des Mantels eines elektrischen Kabels werden also vor dem Extrudieren der Isolierung oder des Mantels in das zu extrudierende Material Asbest- und/oder Glasfasern eingemischt. Durch die in der Isolierung und/oder dem Mantel enthaltenen Asbest- und/oder Glasfasern erhält man dann eine wesentlich höhere Festigkeit der Isolierung sowie insbesondere einen mechanischen Zusammenhalt der Verbren-Iiungsprodukte, beispielsweise der Kieselsäure, im Falle eines Brandes und damit eine längere Funktionsfähigkeit des Kabels im Notfall. Der mechanische Zusanmenhalt der im Brandfall ihre ursprüngliche mechanische Festigkeit verlierenden, beispielsweise porös werdenden Isolierung und/oder des Mantels wird dabei durch die noch ungeschmolzenen Asbestfasern und/oder die gegebenenfalls bereits geschmolzenen Glasfasern sichergestellt.With such a configuration of the insulation and / or the jacket of an electrical cable are therefore prior to the extrusion of the insulation or the Sheath mixed into the material to be extruded asbestos and / or glass fibers. Due to the asbestos and / or glass fibers contained in the insulation and / or the jacket one then obtains a much higher strength of the insulation as well as in particular mechanical cohesion of the combustion products, e.g. silica, in the event of a fire and thus a longer functionality of the cable in an emergency. The mechanical cohesion that retains its original mechanical strength in the event of a fire losing, for example becoming porous insulation and / or the jacket by the asbestos fibers that have not yet been melted and / or possibly already melted glass fibers ensured.
Ein Ausführungsbeispiel eines neuen Kabels ist in der Figur dargestellt.An embodiment of a new cable is shown in the figure.
Die Figur zeigt eine dreiadrige Mantelleitung, deren Adern aus dem Kupferlitzenleiter 1 und der Isolierung 2 aus Silikonkautschuk bestehen. Die miteinander verseilten Adern sind von dem Mantel 3 aus ebenfalls Silikonkautschuk umgeben. Um im Brandfall ein Abbröckeln des Mantels 3 und der Isolierung 2 von den Leitern 1 zu verhindern, sind in der Isolierung 2 und dem Mantel 3 in nicht näher dargestellter Weise Glas- und Asbestfasern in homogener Verteilung angeordnet.The figure shows a three-core sheathed cable, the cores of which are from the Copper stranded conductor 1 and the insulation 2 consist of silicone rubber. The with each other stranded cores are also surrounded by the jacket 3 made of silicone rubber. Around In the event of a fire, the sheath 3 and the insulation 2 will crumble off the conductors 1 to prevent are in the insulation 2 and the jacket 3 in not shown Way glass and asbestos fibers arranged in a homogeneous distribution.
1 Anspruch 1 Figur1 claim 1 figure
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772742365 DE2742365A1 (en) | 1977-09-16 | 1977-09-16 | Electric cable with extruded silicon rubber insulation - has flame resistant properties improved by mixing in asbestos or glass fibres |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772742365 DE2742365A1 (en) | 1977-09-16 | 1977-09-16 | Electric cable with extruded silicon rubber insulation - has flame resistant properties improved by mixing in asbestos or glass fibres |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2742365A1 true DE2742365A1 (en) | 1979-03-29 |
Family
ID=6019443
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19772742365 Withdrawn DE2742365A1 (en) | 1977-09-16 | 1977-09-16 | Electric cable with extruded silicon rubber insulation - has flame resistant properties improved by mixing in asbestos or glass fibres |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2742365A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3228119A1 (en) * | 1982-07-28 | 1984-02-02 | AEG-Telefunken Kabelwerke AG, Rheydt, 4050 Mönchengladbach | Halogen-free, flame-resistant cable which retains its function for a certain time in the event of fire |
CN107629467A (en) * | 2017-10-31 | 2018-01-26 | 定远县保尔工贸有限公司 | A kind of charger baby Silicone Case of good heat dissipation effect |
CN107722642A (en) * | 2017-10-31 | 2018-02-23 | 定远县保尔工贸有限公司 | A kind of intelligent electric appliance charger baby drop resistant shell |
CN107760042A (en) * | 2017-10-31 | 2018-03-06 | 定远县保尔工贸有限公司 | A kind of charger baby shell silicone rubber jacket |
CN107793765A (en) * | 2017-10-31 | 2018-03-13 | 定远县保尔工贸有限公司 | A kind of high heat conduction charger baby methyl vinyl silicone rubber sheath |
CN107880559A (en) * | 2017-10-31 | 2018-04-06 | 定远县保尔工贸有限公司 | A kind of wear-resisting toughness reinforcing charger baby silicone rubber jacket |
CN109280393A (en) * | 2018-08-16 | 2019-01-29 | 温州云彩礼品有限公司 | A kind of mobile phone shell material and preparation method thereof |
CN110444326A (en) * | 2019-06-21 | 2019-11-12 | 杭州富通电线电缆有限公司 | A kind of flame-proof abrasion-resistant cable and preparation method thereof |
-
1977
- 1977-09-16 DE DE19772742365 patent/DE2742365A1/en not_active Withdrawn
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3228119A1 (en) * | 1982-07-28 | 1984-02-02 | AEG-Telefunken Kabelwerke AG, Rheydt, 4050 Mönchengladbach | Halogen-free, flame-resistant cable which retains its function for a certain time in the event of fire |
CN107629467A (en) * | 2017-10-31 | 2018-01-26 | 定远县保尔工贸有限公司 | A kind of charger baby Silicone Case of good heat dissipation effect |
CN107722642A (en) * | 2017-10-31 | 2018-02-23 | 定远县保尔工贸有限公司 | A kind of intelligent electric appliance charger baby drop resistant shell |
CN107760042A (en) * | 2017-10-31 | 2018-03-06 | 定远县保尔工贸有限公司 | A kind of charger baby shell silicone rubber jacket |
CN107793765A (en) * | 2017-10-31 | 2018-03-13 | 定远县保尔工贸有限公司 | A kind of high heat conduction charger baby methyl vinyl silicone rubber sheath |
CN107880559A (en) * | 2017-10-31 | 2018-04-06 | 定远县保尔工贸有限公司 | A kind of wear-resisting toughness reinforcing charger baby silicone rubber jacket |
CN109280393A (en) * | 2018-08-16 | 2019-01-29 | 温州云彩礼品有限公司 | A kind of mobile phone shell material and preparation method thereof |
CN110444326A (en) * | 2019-06-21 | 2019-11-12 | 杭州富通电线电缆有限公司 | A kind of flame-proof abrasion-resistant cable and preparation method thereof |
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Legal Events
Date | Code | Title | Description |
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8139 | Disposal/non-payment of the annual fee |