EP1388867A1 - Electrical cable - Google Patents

Electrical cable Download PDF

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Publication number
EP1388867A1
EP1388867A1 EP03291690A EP03291690A EP1388867A1 EP 1388867 A1 EP1388867 A1 EP 1388867A1 EP 03291690 A EP03291690 A EP 03291690A EP 03291690 A EP03291690 A EP 03291690A EP 1388867 A1 EP1388867 A1 EP 1388867A1
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EP
European Patent Office
Prior art keywords
layer
electrical cable
cable according
adhesion promoter
extruded
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Granted
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EP03291690A
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German (de)
French (fr)
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EP1388867B1 (en
Inventor
Franz Dänekas
Marc Strittmatter
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Nexans SA
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Nexans SA
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    • 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
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
    • H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
    • 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
    • H01B7/1875—Multi-layer sheaths
    • H01B7/188—Inter-layer adherence promoting means

Definitions

  • the invention relates to an electrical cable according to the preamble of claim 1 and a method for producing an electrical cable according to the preamble of Claim 6.
  • WO 02/15202 describes a cable that can be laid in water and in a humid environment known with polyethylene sheath, which encloses a cable core and on one Fire protection layer is extruded.
  • the material of the fire protection layer is heavy flammable, adheres well to the polyethylene jacket and is halogen-free.
  • the fire protection layer is made flame retardant by adding special flame retardant fillers or additives to an ethylene copolymer achieved.
  • the polyethylene jacket and the fire protection layer are made in one step manufactured.
  • Base material is an ethylene copolymer
  • only a little adhesion with one Sheath surface made of polyethylene when the sheath layer and the highly filled Mixture can be extruded in two steps.
  • the cladding and the fire protection layer is a good bond between the two Layers can be achieved, but it is because of the high melt temperature during processing of the HDPE on flame retardants commonly used for cable jackets to resort to, whose flame retardant reaction sets in at temperatures that is above the melt temperature of the HDPE.
  • the present invention is therefore based on the object, the known cable to improve in that the outer fire protection layer is an essential improved property in the event of fire and improved adhesion to the has underlying polyethylene sheath, and there is the possibility almost all commercially available halogen-free flame retardant materials use.
  • FIGS. 1 and 2 Exemplary embodiments explained in more detail.
  • Figure 1 shows a side section through a cable according to the teaching of the invention.
  • the cable has a cable core 1 which, for example, insulates one or more may have electrical conductors.
  • the electrical conductors have an inner one in addition to insulation and an outer conductive layer.
  • the cable core 1 is surrounded by a cable jacket 2, which consists of a first inner Layer 2a consists of polyethylene and a second outer layer 2b, which is flame retardant and made from a highly filled thermoplastic There is a plastic mixture.
  • This third layer 2c consists of an adhesion promoter, which is an intimate connection between the first and second layers.
  • the material of the first layer is pure polyethylene with no additives worth mentioning.
  • This mixture has an oxygen index of 25 - 36%.
  • the third layer is a copolymer of ethylene, which, for example, under the Trade name Lotryl 18 MA 02 is available.
  • the copolymer is preferably a Dye masterbatch added, which, for. B. under the trade name Plasblack PE 4470 is available.
  • the mixing ratio is approximately 99 parts copolymer to 1 part Dye masterbatch.
  • the first and third layers are preferably coextruded onto the Extruded cable core.
  • the second layer can be applied immediately in the same work step extrude the still warm third layer. But it is also possible the second Apply layer in a subsequent operation.
  • the third layer can also be made from a film by longitudinal laying or winding Copolymer of ethylene can be generated on the first layer.
  • the film is sealed due to the heat of extrusion generated by the extrusion of the second layer with the first as well as with the second layer.
  • Figure 2 shows a side view of a manufacturing facility.
  • the cable core 1 running from a storage drum 3 becomes a first extruder 4 fed.
  • the extruder 4 is a so-called coextrusion extruder, which has a first Screw 4a is the material of the first layer and, via a second screw 4b, that Material of the third layer is fed. Layers 2a and 2c are shown in concentric arrangement the mouthpiece 4c of the extruder 4 fed.
  • the cable core provided with layers 2a and 2c now arrives in a second Extruder 5, which extrudes the second layer 2b onto the third layer 2c. That now Finished cable 6 is fed to a cooling basin 7 and onto a cable drum 8 wound.
  • the extrusion speed of the second extruder 5 can be less than 50% of the extrusion speed of the extruder 4, it can be advantageous to apply the second layer 2b in a separate operation.

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  • Insulated Conductors (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Inorganic Insulating Materials (AREA)
  • Manufacturing Of Electric Cables (AREA)
  • Ropes Or Cables (AREA)

Abstract

Between the first inner layer (2a) (PE) and the second outer layer (2b) (ethylene copolymer) there is a third layer (2c) of bonding agent. This includes little or no filler. The third layer is less than 0.2 mm thick. The outer, highly-filled second layer is extruded onto the uncooled, still-hot third layer. The third layer, comprising a film of bonding agent, is applied onto the first layer. The cable is run into the film longitudinally, or wrapped by winding it on. The second layer is extruded over it. The bonding agent melts at 70-100[deg]C. An independent claim is included for the method of making the cable, by co-extrusion and over-extrusion.

Description

Die Erfindung betrifft ein elektrisches Kabel nach dem Oberbegriff des Anspruchs 1 sowie ein Verfahren zur Herstellung eines elektrischen Kabels nach dem Oberbegriff des Anspruchs 6.The invention relates to an electrical cable according to the preamble of claim 1 and a method for producing an electrical cable according to the preamble of Claim 6.

Aus der WO 02/15202 ist ein im Wasser und in feuchter Umgebung verlegbares Kabel mit Polyethylenmantel bekannt, welcher eine Kabelseele umschließt und auf den eine Brandschutzschicht extrudiert ist. Das Material der Brandschutzschicht ist schwer entflammbar, haftet gut auf dem Polyethylenmantel und ist halogenfrei. Die Schwerentflammbarkeit der Brandschutzschicht wird durch Zugabe von speziellen flammhemmenden Füllstoffen bzw. Zusatzstoffen zu einem Ethylen Copolymer erreicht. Der Polyethylenmantel und die Brandschutzschicht werden in einem Arbeitsschritt hergestellt.WO 02/15202 describes a cable that can be laid in water and in a humid environment known with polyethylene sheath, which encloses a cable core and on one Fire protection layer is extruded. The material of the fire protection layer is heavy flammable, adheres well to the polyethylene jacket and is halogen-free. The The fire protection layer is made flame retardant by adding special flame retardant fillers or additives to an ethylene copolymer achieved. The polyethylene jacket and the fire protection layer are made in one step manufactured.

In vielen Anwendungsfällen z. B. bei der Verlegung von Mittelspannungskabeln in U-Bahnschächten wird ein hoher Sauerstoffindex des Mantelmaterials von über 25 % gefordert. Darüberhinaus muß das Material des Mantels halogenfrei sein. Ein solch hoher Sauerstoffindex bzw. eine so extrem hohe Schwerentflammbarkeit bei gleichzeitiger Halogenfreiheit kann nur erreicht werden, wenn dem Mantelmaterial große Mengen von Füllstoffen zugegeben wird, wie z. B. Aluminiumtrioxyhydrat, Magnesiumhydroxid etc. Insbesondere Aluminiumtrioxyhydrat hat sich als Flammschutzmittel bewährt, da bei erhöhten Temperaturen das Kristallwasser abgespalten wird und eine Sauerstoffzufuhr zum Brandherd von außen verhindert. Hochgefüllte Kunststoffmischungen, d. h. solche, die mehr als 100 Teile Füllstoff auf 100 Teile Basismaterial haben, sind zwar extrudierbar, gehen aber selbst dann, wenn das Basismaterial ein Ethylen Copolymer ist, nur eine geringe Haftung mit einer Manteloberfläche aus Polyethylen ein, wenn die Mantelschicht und die hochgefüllte Mischung in zwei Arbeitsschritten extrudiert werden. Bei einer gemeinsamen Extrusion der Mantel- und der Brandschutzschicht ist zwar eine gute Haftung zwischen den beiden Schichten erzielbar, es ist aber wegen der hohen Massetemperatur bei der Verarbeitung des für Kabelmäntel üblicherweise verwendeten HDPE auf Flammschutzmittel zurückzugreifen, deren flammhemmende Reaktion bei Temperaturen einsetzt, die oberhalb der Massetemperatur des HDPE liegt.In many applications, e.g. B. when laying medium-voltage cables in subway shafts a high oxygen index of the jacket material of over 25% required. In addition, the material of the jacket must be halogen-free. Such high oxygen index or extremely high flammability simultaneous freedom from halogen can only be achieved if the sheath material large amounts of fillers are added, e.g. B. aluminum trioxy hydrate, Magnesium hydroxide etc. In particular aluminum trioxy hydrate has proven to be Flame retardants have proven their worth, since at high temperatures the water of crystallization is split off and an oxygen supply to the source of the fire is prevented from the outside. Filled plastic compounds, i.e. H. those containing more than 100 parts of filler per 100 Parts of the base material can be extruded, but they work even if that is the case Base material is an ethylene copolymer, only a little adhesion with one Sheath surface made of polyethylene when the sheath layer and the highly filled Mixture can be extruded in two steps. With a common extrusion the cladding and the fire protection layer is a good bond between the two Layers can be achieved, but it is because of the high melt temperature during processing of the HDPE on flame retardants commonly used for cable jackets to resort to, whose flame retardant reaction sets in at temperatures that is above the melt temperature of the HDPE.

Der vorliegenden Erfindung liegt von daher die Aufgabe zugrunde, das bekannte Kabel dahingehend zu verbessern, daß die äußere Brandschutzschicht eine wesentlich verbesserte Eigenschaft im Brandfalle und eine verbesserte Haftung zum darunterliegenden Polyethylenmantel aufweist, sowie die Möglichkeit gegeben ist, nahezu sämtlich im Handel erhältlichen halogenfreien Flammschutzmaterialien einzusetzen.The present invention is therefore based on the object, the known cable to improve in that the outer fire protection layer is an essential improved property in the event of fire and improved adhesion to the has underlying polyethylene sheath, and there is the possibility almost all commercially available halogen-free flame retardant materials use.

Diese Aufgabe wird durch die im Kennzeichen des Anspruchs 1 erfaßten Merkmale gelöst.This object is achieved by the features recorded in the characterizing part of claim 1 solved.

Durch die Verwendung eines zusätzlichen Haftvermittlers zwischen dem Polyethylenmantel und der äußeren Brandschutzschicht wird trotz eines hohen Füllgrades eine gute Haftung erreicht.By using an additional bonding agent between the Polyethylene jacket and the outer fire protection layer is despite a high degree of filling good adhesion achieved.

Weitere vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen erfaßt.Further advantageous embodiments of the invention are covered in the subclaims.

Die Erfindung ist anhand der in den Figuren 1 und 2 schematisch dargestellten Ausführungsbeispiele näher erläutert.The invention is illustrated schematically in FIGS. 1 and 2 Exemplary embodiments explained in more detail.

Figur 1 zeigt einen seitlichen Schnitt durch ein Kabel nach der Lehre der Erfindung. Figure 1 shows a side section through a cable according to the teaching of the invention.

Das Kabel weist eine Kabelseele 1 auf, die beispielsweise einen oder mehrere isolierte elektrische Leiter aufweisen kann. Im Falle eines Mittel- oder Hochspannungskabels weisen die elektrischen Leiter wie an sich bekannt zusätzlich zur Isolierung eine innere und eine äußere Leitschicht auf. Über der äußeren Leitschicht kann noch eine metallische Abschirmung vorgesehen sein.The cable has a cable core 1 which, for example, insulates one or more may have electrical conductors. In the case of a medium or high voltage cable As is known per se, the electrical conductors have an inner one in addition to insulation and an outer conductive layer. There can be a metallic one over the outer conductive layer Shielding may be provided.

Die Kabelseele 1 ist von einem Kabelmantel 2 umgeben, der aus einer ersten inneren Schicht 2a aus Polyethylen sowie einer zweiten äußeren Schicht 2b besteht, welche schwerentflammbar ist und aus einer hochgefüllten thermoplastisch verarbeitbaren Kunststoffmischung besteht. Zwischen der ersten und der zweiten Schicht ist eine dritte Schicht 2c vorgesehen, welche die äußere Oberfläche der Schicht 2a vollflächig bedeckt. Diese dritte Schicht 2c besteht aus einem Haftvermittler, welche eine innige Verbindung zwischen der ersten und der zweiten Schicht herstellt.The cable core 1 is surrounded by a cable jacket 2, which consists of a first inner Layer 2a consists of polyethylene and a second outer layer 2b, which is flame retardant and made from a highly filled thermoplastic There is a plastic mixture. There is a third between the first and second layers Layer 2c provided, which covers the entire surface of the layer 2a. This third layer 2c consists of an adhesion promoter, which is an intimate connection between the first and second layers.

Die Wanddicken der Schichten betragen vorteilhafterweise

  • 1. Schicht WD = 2,5 mm
  • 2. Schicht WD = 2,00 mm
  • 3. Schicht WD = 0,15 mm.
    • The wall thicknesses of the layers are advantageously
  • 1st layer WD = 2.5 mm
  • 2nd layer WD = 2.00 mm
  • 3rd layer WD = 0.15 mm.

    • Das Material der ersten Schicht ist reines Polyethylen ohne nennenswerte Zusätze.The material of the first layer is pure polyethylene with no additives worth mentioning.

    Die zweite Schicht setzt sich beispielsweise zusammen aus:

  • 60 - 90 Teilen Ethylenvinylacetat
  • 40 - 0 Teilen Lineares Polyethylen
  • 0 - 20 Teilen Ethylenacrylatterpolymer (EAT), welches von der Atofina unter dem Handelsnamen Lotader geliefert wird.
  • 100 - 170 Teilen Aluminiumtrioxyhydrat
  • 0,4 Teile Alterungsschutzmittel.
    • For example, the second layer consists of:
  • 60-90 parts of ethylene vinyl acetate
  • 40 - 0 parts linear polyethylene
  • 0 - 20 parts of ethylene acrylate polymer (EAT), which is supplied by Atofina under the trade name Lotader.
  • 100 - 170 parts of aluminum trioxy hydrate
  • 0.4 parts anti-aging agent.

    • Diese Mischung weist einen Sauerstoffindex von 25 - 36 % auf.This mixture has an oxygen index of 25 - 36%.

    Die dritte Schicht ist ein Copolymer des Ethylens, welches beispielsweise unter dem Handelsnamen Lotryl 18 MA 02 erhältlich ist. Dem Copolymer wird vorzugsweise ein Farbstoffmasterbatch zugegeben, welcher z. B. unter dem Handelsnamen Plasblack PE 4470 erhältlich ist. Das Mischungsverhältnis beträgt in etwa 99 Teile Copolymer zu 1 Teil Farbstoffmasterbatch.The third layer is a copolymer of ethylene, which, for example, under the Trade name Lotryl 18 MA 02 is available. The copolymer is preferably a Dye masterbatch added, which, for. B. under the trade name Plasblack PE 4470 is available. The mixing ratio is approximately 99 parts copolymer to 1 part Dye masterbatch.

    Die erste und die dritte Schicht werden vorzugsweise im Coextrusionsverfahren auf die Kabelseele aufextrudiert. Die zweite Schicht kann im selben Arbeitsgang unmittelbar auf die noch warme dritte Schicht aufextrudiert werden. Es ist aber auch möglich, die zweite Schicht in einem nachfolgenden Arbeitsgang aufzubringen.The first and third layers are preferably coextruded onto the Extruded cable core. The second layer can be applied immediately in the same work step extrude the still warm third layer. But it is also possible the second Apply layer in a subsequent operation.

    Die dritte Schicht kann auch durch Längsauflegen oder Aufwickeln einer Folie aus einem Copolymer des Ethylens auf die erste Schicht erzeugt werden. Die Folie verschweißt infolge der durch die Extrusion der zweiten Schicht entstehende Extrusionswärme sowohl mit der ersten als auch mit der zweiten Schicht.The third layer can also be made from a film by longitudinal laying or winding Copolymer of ethylene can be generated on the first layer. The film is sealed due to the heat of extrusion generated by the extrusion of the second layer with the first as well as with the second layer.

    Die Figur 2 zeigt eine seitliche Ansicht einer Fertigungseinrichtung.Figure 2 shows a side view of a manufacturing facility.

    Die von einer Vorratstrommel 3 ablaufende Kabelseele 1 wird einem ersten Extruder 4 zugeführt. Der Extruder 4 ist ein sogenannter Coextrusionsextruder, dem über eine erste Schnecke 4a das Material der ersten Schicht und über eine zweite Schnecke 4b das Material der dritten Schicht zugeführt wird. Die Schichten 2a und 2c werden in konzentrischer Anordnung dem Mundstück 4c des Extruders 4 zugeleitet.The cable core 1 running from a storage drum 3 becomes a first extruder 4 fed. The extruder 4 is a so-called coextrusion extruder, which has a first Screw 4a is the material of the first layer and, via a second screw 4b, that Material of the third layer is fed. Layers 2a and 2c are shown in concentric arrangement the mouthpiece 4c of the extruder 4 fed.

    Die mit den Schichten 2a und 2c versehene Kabelseele gelangt nun in einem zweiten Extruder 5, welcher die zweite Schicht 2b auf die dritte Schicht 2c extrudiert. Das nun fertige Kabel 6 wird einem Kühlbecken 7 zugeführt und auf eine Kabeltrommel 8 aufgewickelt. The cable core provided with layers 2a and 2c now arrives in a second Extruder 5, which extrudes the second layer 2b onto the third layer 2c. That now Finished cable 6 is fed to a cooling basin 7 and onto a cable drum 8 wound.

    Da wegen des hohen Füllgrades die Extrusionsgeschwindigkeit des zweiten Extruders 5 weniger als 50 % der Extrusionsgeschwindigkeit des Extruders 4 betragen kann, kann es von Vorteil sein, die zweite Schicht 2b in einem gesonderten Arbeitsgang aufzubringen.Because of the high degree of filling, the extrusion speed of the second extruder 5 can be less than 50% of the extrusion speed of the extruder 4, it can be advantageous to apply the second layer 2b in a separate operation.

    An einer Probe des fertigen Kabels wurde die Haftung zwischen der ersten und der zweiten Schicht in Anlehnung an IEC. 19.21 gemessen und ein Wert von 21 N ermittelt.On a sample of the finished cable, the adhesion between the first and the second layer based on IEC. 19.21 measured and a value of 21 N determined.

    Claims (9)

    Elektrisches Kabel, bestehend aus einer Kabelseele und einem die Kabelseele umgebenden Mantel, wobei der Mantel eine erste innere Schicht aus Polyethylen und eine zweite äußere Schicht aus Ethylen Copolymer, die durch Zugabe von speziellen flammhemmenden Füllstoffen bzw. Zusatzstoffen flammfest gemacht ist, aufweist, dadurch gekennzeichnet, daß zwischen der ersten inneren Schicht und der zweiten äußeren Schicht eine dritte Schicht aus einem Haftvermittler angeordnet ist, und daß der Haftvermittler der dritten Schicht keine oder nur äußerst geringe Anteile an Füllstoffen enthält.Consisting and, in electrical cable from a cable core the cable core surrounding cladding, wherein the cladding has a first inner layer of polyethylene and a second outer layer of ethylene copolymer that is made by the addition of special flame retardant fillers and additives, flame-resistant, characterized that a third layer of an adhesion promoter is arranged between the first inner layer and the second outer layer, and that the adhesion promoter of the third layer contains no or only extremely small amounts of fillers. Elektrisches Kabel nach Anspruch 1, dadurch gekennzeichnet, daß die erste Schicht aus einem Polyethylen hoher Dichte (HDPE) besteht.Electrical cable according to claim 1, characterized in that the first layer consists of a high density polyethylene (HDPE). Elektrisches Kabel nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die dritte Schicht aus Ethylenvinylacetat (EVA), Ethylenbutylacrylat (EBA) oder Ethylenmethylacrylat (EMA) besteht.Electrical cable according to claim 1 or 2, characterized in that the third layer consists of ethylene vinyl acetate (EVA), ethylene butyl acrylate (EBA) or ethylene methyl acrylate (EMA). Elektrisches Kabel nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die dritte Schicht eine Wanddicke von weniger als 0,2 mm aufweist. Electrical cable according to one of claims 1 to 3, characterized in that the third layer has a wall thickness of less than 0.2 mm. Elektrisches Kabel nach Anspruch 3, dadurch gekennzeichnet, daß die dritte Schicht aus 95 - 99 Teilen Ethylenvinylacetat und 1 bis 5 Teilen eines Farbmasterbatches z. B. aus Polyethylen und Ruß besteht.Electrical cable according to claim 3, characterized in that the third layer of 95-99 parts of ethylene vinyl acetate and 1 to 5 parts of a color masterbatch z. B. consists of polyethylene and carbon black. Verfahren zur Herstellung eines elektrischen Kabels nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß auf die Kabelseele in einem ersten Arbeitsschritt die erste und die dritte Schicht durch Coextrusion aufgebracht und in einem zweiten Arbeitsschritt die äußere hochgefüllte zweite Schicht aufextrudiert wird.A process for producing an electrical cable according to one of claims 1 to 5, characterized in that the first and third layers are applied to the cable core in a first working step by coextrusion and the outer highly filled second layer is extruded in a second working step. Verfahren nach Anspruch 1, daß die äußere hochgefüllte zweite Schicht im selben Arbeitsgang wie die erste und die dritte Schicht auf die ungekühlte noch warme dritte Schicht aufextrudiert wird.The method of claim 1, that the outer highly filled second layer in the same Work like the first and third layers on the uncooled still warm third Layer is extruded. Verfahren zur Herstellung eines elektrischen Kabels nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß auf die erste Schicht die dritte Schicht in Form einer Folie aus einem Haftvermittler längseinlaufend oder durch Wickeln aufgebracht wird und die zweite Schicht auf die dritte Schicht aufextrudiert wird.A process for producing an electrical cable according to one of claims 1 to 5, characterized in that the third layer is applied to the first layer in the form of a film made of an adhesion promoter or by winding, and the second layer is extruded onto the third layer. Verfahren nach Anspruch 8, dadurch gekennzeichnet, daß die Folie aus einem Haftvermittler mit einem Schmelzbereich zwischen 70 und 100 °C besteht.A method according to claim 8, characterized in that the film consists of an adhesion promoter with a melting range between 70 and 100 ° C.
    EP03291690A 2002-08-08 2003-06-08 Electrical cable Expired - Lifetime EP1388867B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE10236288 2002-08-08
    DE10236288A DE10236288A1 (en) 2002-08-08 2002-08-08 Electric cable

    Publications (2)

    Publication Number Publication Date
    EP1388867A1 true EP1388867A1 (en) 2004-02-11
    EP1388867B1 EP1388867B1 (en) 2007-08-01

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    AT (1) ATE368927T1 (en)
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    FR2870542A1 (en) * 2004-05-21 2005-11-25 Nexans Sa Fire resistant composition, useful in the domain of the energy cables or telecommunication comprises a polymer and an argillaceous charge having sepiolite base
    US7495174B2 (en) * 2004-06-03 2009-02-24 Autonetworks Technologies, Limited Coated Electric Wire
    CN104599768A (en) * 2014-08-27 2015-05-06 沈群华 Luminous cable
    EP2979839A1 (en) * 2014-07-31 2016-02-03 Schneider Electric Industries SAS Plastic extrusions having an adhesive flame-retardant coating and method for preparing same
    CN112397228A (en) * 2019-08-15 2021-02-23 江苏亨通电力电缆有限公司 B1-level single-phase alternating-current cable for electrified railway and preparation method thereof

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    Cited By (7)

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    Publication number Priority date Publication date Assignee Title
    FR2870542A1 (en) * 2004-05-21 2005-11-25 Nexans Sa Fire resistant composition, useful in the domain of the energy cables or telecommunication comprises a polymer and an argillaceous charge having sepiolite base
    US7495174B2 (en) * 2004-06-03 2009-02-24 Autonetworks Technologies, Limited Coated Electric Wire
    EP2979839A1 (en) * 2014-07-31 2016-02-03 Schneider Electric Industries SAS Plastic extrusions having an adhesive flame-retardant coating and method for preparing same
    FR3024388A1 (en) * 2014-07-31 2016-02-05 Schneider Electric Ind Sas EXTRUDED PIECES OF PLASTIC MATERIAL COMPRISING AN ADHESIVE FIRE RETARDANT COATING AND PROCESS FOR THE PREPARATION THEREOF
    CN104599768A (en) * 2014-08-27 2015-05-06 沈群华 Luminous cable
    CN104599768B (en) * 2014-08-27 2017-01-25 国网山东省电力公司沂水县供电公司 Luminous cable
    CN112397228A (en) * 2019-08-15 2021-02-23 江苏亨通电力电缆有限公司 B1-level single-phase alternating-current cable for electrified railway and preparation method thereof

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    DE50307802D1 (en) 2007-09-13
    DK1388867T3 (en) 2007-10-29
    DE10236288A1 (en) 2004-02-26
    ATE368927T1 (en) 2007-08-15
    EP1388867B1 (en) 2007-08-01

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