EP3398194B1 - Kabel mit einer feuerbeständigen isolierschicht - Google Patents

Kabel mit einer feuerbeständigen isolierschicht Download PDF

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Publication number
EP3398194B1
EP3398194B1 EP16829295.1A EP16829295A EP3398194B1 EP 3398194 B1 EP3398194 B1 EP 3398194B1 EP 16829295 A EP16829295 A EP 16829295A EP 3398194 B1 EP3398194 B1 EP 3398194B1
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EP
European Patent Office
Prior art keywords
silicate
cable according
cable
insulating layer
weight
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EP16829295.1A
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English (en)
French (fr)
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EP3398194A1 (de
Inventor
Franck Gyppaz
Stéphanie HOAREAU
Vincent BLANC
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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
    • 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
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/002—Inhomogeneous material in general
    • H01B3/006—Other inhomogeneous material
    • 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

Definitions

  • the present invention relates to a cable comprising at least one elongated conductive element surrounded by at least one fire-resistant insulating layer.
  • safety cables are in particular power transmission cables or low frequency transmission cables, such as control or signaling cables.
  • a significant slowdown in the progression of the flames means that much time is saved to evacuate the premises and / or to implement appropriate extinguishing means.
  • the cable In the event of a fire, the cable must be able to withstand the fire in order to operate as long as possible and limit its degradation.
  • a safety cable must also not be dangerous for its environment, that is to say not to give off toxic and / or opaque fumes when it is subjected to extreme thermal conditions.
  • a fire-resistant and halogen-free safety electric cable comprising a set of insulated electrical conductors, said set being surrounded by an outer sheath.
  • Each insulated electrical conductor is formed by an electrical conductor surrounded by an insulating layer obtained from a composition comprising a polymeric material and at least one ceramic-forming filler, said insulating layer thus being able to be converted at least superficially into ceramic state at high temperatures corresponding to fire conditions.
  • the polymeric material of this single insulating layer is chosen from a polysiloxane, an ethylene copolymer, and their mixture.
  • the aim of the present invention is to overcome the drawbacks of the techniques of the prior art by proposing in particular a cable exhibiting excellent fire resistance properties while limiting the risks of mechanical degradation of the electrical conductor (s) which compose it, even at high temperature.
  • the cable has very good fire resistance, and in particular makes it possible to significantly reduce or even avoid the formation of flaming droplets during combustion of the cable.
  • the mechanical properties of the cable of the invention are also improved thereby allowing it to continue to operate even at high temperatures.
  • the cable of the invention advantageously satisfies the conditions of standard NF C 32-070 CR1 (2001) and of standard EN50200 (2006).
  • the invention as thus defined also has the advantage of being economical since it makes it possible to significantly limit or even avoid the use of polysiloxane in the insulating layer, while having very good resistance properties. fire.
  • the first silicate of the cocktail of fillers can be a phyllosilicate, such as, for example, mica.
  • the cocktail of fillers can comprise from 20 to 40% by weight of first silicate relative to the total weight of cocktail of fillers in the polymer composition.
  • the second silicate of the cocktail of fillers can be a compound with a high specific surface area, in particular of at least 10 m 2 / g, and preferably of at least 20 m 2 / g.
  • the specific surface is conventionally determined by the BET method according to DIN ISO 9277.
  • the second silicate of the cocktail of fillers can in particular be of the lamellar type.
  • the second silicate can comprise magnesium silicate, such as for example talc.
  • the cocktail of fillers can comprise from 20 to 40% by weight of second silicate relative to the total weight of cocktail of fillers in the polymer composition.
  • the third silicate of the cocktail of fillers can be a compound comprising aluminum silicate, in particular of the lamellar type.
  • the third silicate can be chosen from montmorillonite, bentonite, kaolinite, hectorite, halloysite, and one of their mixtures.
  • a third silicate As a preferred example of a third silicate, mention may be made of a nanoclay, which may or may not be functionalized. More particularly, it can be surface treated with cations of the quaternary ammonium type.
  • the cocktail of fillers can comprise from 5 to 30% by weight of third silicate relative to the total weight of cocktail of fillers in the polymer composition.
  • the oxide of an alkaline earth metal advantageously makes it possible to improve the mechanical properties of cohesion of the insulating layer after combustion under the effect of a flame.
  • the oxide of an alkaline earth metal can be of high purity, in order to improve the electrical resistivity of the cable of the invention.
  • high purity is understood to mean an oxide of an alkaline earth metal having a purity (by calcination) of at least 96.0%, preferably at least 98.0%, and particularly preferably of at least 99.0%.
  • the oxide of an alkaline earth metal of high purity advantageously limits the presence of electrically conductive compound (s), in particular in the form of impurity (s).
  • the impurities can contain, for example, heavy metals.
  • the oxide of an alkaline earth metal can comprise at most 30 ppm of heavy metals, and preferably less than 10 ppm of heavy metals.
  • the oxide of an alkaline earth metal has a melting point of at least 1500 ° C, preferably at least 2000 ° C, and particularly preferably at least 2500 ° C.
  • the oxide of an alkaline earth metal can be a magnesium oxide (MgO).
  • the cocktail of fillers comprises 20 to 40% by weight of oxide of an alkaline earth metal relative to the total weight of cocktail of fillers in the polymer composition.
  • the polymer material of the invention comprises one or more polymer (s), the term polymer being able to be understood by any type of polymer well known to those skilled in the art such as homopolymer or copolymer (eg block copolymer, random copolymer, terpolymer , ... etc).
  • the polymer can be of the thermoplastic or elastomeric type, and can be crosslinked by techniques well known to those skilled in the art.
  • the polymer material can comprise one or more olefin polymers, and preferably one or more ethylene polymers.
  • An olefin polymer is conventionally a polymer obtained from at least one olefin monomer.
  • the polymeric material may comprise more than 30% by weight of olefin polymer (s), preferably more than 50% by weight of olefin polymer (s), preferably more than 70% by weight of polymer (s) of olefin, and particularly preferably more than 90% by weight of olefin polymer (s), relative to the total weight of polymer material in the polymer composition.
  • the polymeric material is only composed of one or more olefin polymer (s).
  • the polymeric material of the invention can comprise one or more olefin polymers chosen from linear low density polyethylene (LLDPE); very low density polyethylene (VLDPE); low density polyethylene (LDPE); medium density polyethylene (MDPE); high density polyethylene (HDPE); an ethylene-propylene elastomeric copolymer (EPM); an ethylene propylene diene monomer terpolymer (EPDM); an ethylene / vinyl ester copolymer such as an ethylene / vinyl acetate (EVA) copolymer; an ethylene-acrylate copolymer such as an ethylene-butyl acrylate (EBA) copolymer or an ethylene-methyl acrylate (EMA) copolymer; an ethylene-alpha-olefin copolymer such as an ethylene-octene copolymer (PEO) or an ethylene-butene copolymer (PEB); and one of their mixtures.
  • LLDPE linear low density polyethylene
  • the polymer material of the invention can also comprise a grafted polymer, in particular grafted with polar functions.
  • This grafted polymer advantageously makes it possible to improve the mechanical properties of cohesion of the insulating layer after combustion under the effect of a flame.
  • the grafted polymer may be an olefin polymer grafted with maleic anhydride, and in particular a polymer of ethylene grafted with maleic anhydride.
  • the polymer material may comprise from 1 to 20% by weight of said graft polymer, and preferably from 5 to 15% by weight of said graft polymer, relative to the total weight of polymer material in the polymer composition.
  • the polymeric material can comprise one or more ethylene polymer (s).
  • the polymeric material can comprise a blend of at least two different ethylene polymers, and more particularly can comprise a blend of an ethylene homopolymer and an ethylene vinyl acetate (EVA) copolymer.
  • EVA ethylene vinyl acetate
  • the polymeric material can comprise from 50 to 80% by weight of EVA and from 20 to 50% by weight of an ethylene homopolymer, relative to the total weight of polymeric material in the polymer composition.
  • the polymer composition of the invention may comprise at least 30% by weight of polymeric material, preferably at least 50% by weight of polymeric material, and preferably at least 60% by weight of polymeric material, relative to the total weight of the polymer composition.
  • the polymer composition of the invention can comprise at least 30% by weight of said cocktail of fillers relative to the total weight of the polymer composition.
  • the polymer composition can comprise at least 30% by weight of said polymeric material relative to the total weight of the polymer composition.
  • the polymer composition may have a Mooney viscosity of at least 50, and preferably at least 55.
  • the polymer composition may have a Mooney viscosity of at most 100, and preferably at most 90.
  • the Mooney viscosity (ML1 + 4, 100 ° C) is expressed in Mooney (Me) units and can be easily determined by standard NFT 43005.
  • the polymer composition may typically further include additives in an amount of 0.1 to 20 parts by weight per 100 parts by weight of polymeric material in the polymer composition.
  • the additives are well known to those skilled in the art and can for example be chosen from protection agents (eg anti-UV, anti-copper), processing agents (eg plasticizers, lubricants), pigments, and antioxidants.
  • the insulating layer of the invention surrounds the elongated conductive element, thereby forming an insulated elongated conductive element.
  • extruded layer It can be easily shaped by extrusion around the elongated conductive member. This is called an extruded layer.
  • the insulating layer is a so-called thermoplastic layer, or in other words an uncrosslinked layer.
  • non-crosslinked is understood to mean a layer in which the degree of gel according to standard ASTM D2765-01 (extraction with xylene) is at most 20%, preferably at most 10%, preferably at most 5. %, and particularly preferably 0%.
  • the insulating layer of the invention can advantageously be an electrically insulating layer.
  • the term “electrically insulating layer” is understood to mean a layer whose electrical conductivity can be at most 1.10 -9 S / m (siemens per meter) (at 25 ° C), preferably at most 1.10 -8 S / m, and preferably at most 1.10 -13 S / m (at 25 ° C).
  • the thickness of the insulating layer can range from 0.10 mm to 2.00 mm.
  • the insulating layer may be in direct physical contact with the elongated conductive member.
  • the elongated conductive element may be surrounded by the insulating layer of the invention as a single insulating layer. This is then referred to as so-called “single-layer” insulation.
  • the outer layer surrounding the inner layer then forms a so-called “bilayer” insulation.
  • the outer layer can be more particularly a layer crosslinked by techniques well known to those skilled in the art.
  • the crosslinked layer can be easily characterized by determining its degree of gel according to standard ASTM D2765-01. More particularly, said crosslinked layer can advantageously have a gel content, according to standard ASTM D2765-01 (xylene extraction), of at least 50%, preferably of at least 70%, preferably of at least 80 %, and particularly preferably at least 90%.
  • the outer layer is a crosslinked or uncrosslinked layer, based on an olefin polymer, and more particularly based on an ethylene polymer.
  • the thickness of the outer layer can range from 0.05 to 2.00 mm.
  • the thickness of the outer layer may be less than or equal to the thickness of the inner layer.
  • the invention finds a particularly advantageous, but not exclusive, application in the field of power or telecommunications cables intended to remain operational for a defined time when they are subjected to high heat and / or directly to flames.
  • the term “cable” is understood to mean an electrical and / or optical cable, intended for the transport of energy and / or the transmission of data.
  • this type of cable comprises one or more elongated conductive element (s) of the electrical and / or optical type.
  • the elongated conductor element When the elongated conductor element is of the electrical type, it may be a single conductor such as for example a metal wire, or a multiconductor such as a plurality of metal wires, twisted or not.
  • the elongated electrical conductor can be made from a metallic material chosen in particular from aluminum, an aluminum alloy, copper, a copper alloy, and one of their combinations.
  • the section (cross section) of the electrical conductor can range from 0.5 mm 2 to more than 240 mm 2 .
  • the cable may comprise at least two elongated conductive elements, each elongate conductive element being surrounded by at least the insulating layer of the invention.
  • the cable of the invention may further comprise a protective sheath surrounding one or more insulated elongated conductive element (s).
  • the protective sheath surrounds the single insulated elongate conductor element.
  • the protective sheath surrounds all of said insulated elongated conductor elements.
  • the protective sheath of the invention may be a sheath of the tubing type or of the stuffing type.
  • tubing sheath is understood to mean a sheath in the form of a tube comprising a substantially identical thickness all along said tube.
  • the tubing sheath can be more or less tightened around all of the insulated conductors so as in particular to immobilize all of said insulated conductors inside said sheath.
  • the tubing sheath is very simple and quick to produce since it requires less pressure at the exit of the extruder than that necessary for the manufacture of a stuffing sheath.
  • sensing sheath is understood to mean a sheath which fills the interstices between the insulated electrical conductors, the volumes of which are accessible.
  • the protective sheath can be conventionally based on one or more olefin polymer (s), with optionally at least one flame-retardant filler such as aluminum trihydroxide (ATH), magnesium dihydroxide (MDH), the chalk.
  • the protective sheath is a sheath called “HFFR” for the anglicism “ Halogen-Free Flame Retardant ” according to standard IEC 60754 Parts 1 and 2 (2011).
  • the cable may further comprise a stuffing element positioned along the cable between the protective sheath and the isolated elongated conductor element (s), the The stuffing element may further surround the isolated elongate conductive element (s).
  • the stuffing element is well known to those skilled in the art and may for example be based on one or more olefin polymer (s), optionally with at least one flame-retardant filler such as, for example, olefin trihydroxide. aluminum (ATH), magnesium dihydroxide (MDH), chalk.
  • the stuffing element is a so-called “HFFR” element for the anglicism “ Halogen-Free Flame Retardant” according to standard IEC 60754 Parts 1 and 2 (2011).
  • the cable of the invention does not include / preferably do not include halogenated compounds according to standard IEC 60754 Parts 1 and 2 (2011).
  • halogenated compounds can be of all kinds, such as for example fluorinated polymers or chlorinated polymers such as polyvinyl chloride (PVC), halogenated plasticizers, halogenated mineral fillers, etc.
  • the electric cable shown on the figure 1 comprises two electrical conductors 1, each electrical conductor being surrounded by a single insulating layer 2 in accordance with the invention.
  • a protective sheath 3 of the tubing type surrounds all of the two insulated electrical conductors.
  • a stuffing element 4 is positioned between the protective sheath 3 and all of the insulated electrical conductors.
  • the stuffing element 4 also surrounds all of the insulated electrical conductors.
  • the electric cable shown on the figure 2 comprises three electrical conductors 1, a first insulating layer 2a (inner layer) around each electrical conductor 1, a second insulating layer 2b (outer layer) around each first insulating layer 2a.
  • the inner layer is an insulating layer in accordance with the invention, while the outer layer is a conventional crosslinked polyethylene layer.
  • a protective sheath 3 of the tubing type surrounds all of the three insulated electrical conductors.
  • the sheath protection 3 is a conventional sheath made from a flame-retardant composition based on polyolefin.
  • the stuffing element 4 is a conventional stuffing element also made from a flame retardant composition based on polyolefin.
  • Table 1 below collates a polymer composition according to the invention with: - a polymer material consisting of three different polymers, namely: Polymer 1, Polymer 2 and Polymer 3; and - a cocktail of fillers made up of four different fillers, namely: Silicate 1, Silicate 2, Silicate 3 and Metal oxide.
  • an insulating layer in accordance with the invention was implemented in various types of cables (see Tables 2 and 3 below) in order to be tested in accordance with standards NF C 32-070 CR1 (2001) and EN50200 (2006).
  • Table 2 below groups together three cables of substantially identical structure, comprising an insulating layer obtained from the polymer composition of Table 1.
  • cables 1 to 3 in Table 2 include: - two electrical conductors surrounded respectively by a bilayer insulation, said bilayer insulation comprising an internal insulating layer according to the invention obtained from the polymer composition of Table 1, - a stuffing element surrounding the two insulated electrical conductors, and - a protective sheath of the tubing type surrounding the two insulated electrical conductors as well as the stuffing element.
  • Table 3 below groups together two cables of substantially identical structure, comprising an insulating layer obtained from the polymer composition of Table 1.
  • cables 4 and 5 in Table 3 include: - ten pairs of electrical conductors (ie twenty electrical conductors), each electrical conductor being surrounded by a bilayer insulation, said bilayer insulation comprising an internal insulating layer according to the invention obtained from the polymer composition of Table 1, - a protective sheath of the tubing type surrounding the twenty insulated electrical conductors, and - empty spaces between the protective sheath and the insulated electrical conductors.
  • the polymer composition of Table 1 is extruded, using a conventional single-screw extruder, around each electrical conductor, thus forming the internal layer of the bilayer insulation.
  • the temperature profile ranges from 90 to 200 ° C, and the extruder has eight heating zones.
  • the outer layer of the bilayer insulation of each electrical conductor is conventionally extruded around the inner layer.
  • the bilayer insulation can be extruded in two successive stages (so-called “tandem” extrusion), but it can also be extruded by co-extrusion (one and the same extrusion head).
  • Cables 1 to 3 are subjected to the test according to standard NF C 32-070 CR1 (2001), the results being collated in table 2.
  • Standard NF C 32-070 CR1 (2001) indicates in particular a fire resistance threshold. 65 minutes (min) to validate the performance.
  • Standard EN50200 (2006) indicates in particular a fire resistance threshold of 120 minutes (min) to validate the performance.

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  • Insulated Conductors (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Organic Insulating Materials (AREA)

Claims (16)

  1. Kabel, umfassend mindestens ein längliches leitendes Element (1), das von mindestens einer isolierenden Schicht (2, 2a) umgeben ist, die aus einer Polymerzusammensetzung erhalten ist, umfassend ein Polymermaterial und einen Zuschlagcocktail, dadurch gekennzeichnet, dass der Zuschlagcocktail umfasst:
    - ein erstes Silikat,
    - ein zweites Silikat, wobei sich das zweite Silikat vom ersten Silikat unterscheidet,
    - ein drittes Silikat, wobei sich das dritte Silikat vom ersten Silikat und vom zweiten Silikat unterscheidet, und
    - ein Oxid eines Erdalkalimetalls, und
    dass der Zuschlagcocktail 20 bis 40 Gew.-% eines Erdalkalimetalls in Bezug auf die Gesamtmenge von Zuschlagcocktail in der Polymerzusammensetzung umfasst.
  2. Kabel nach Anspruch 1, dadurch gekennzeichnet, dass der Zuschlagcocktail in Bezug auf das Gesamtgewicht des Zuschlagcocktails umfasst:
    - 20 bis 40 Gew.-% erstes Silikat,
    - 20 bis 40 Gew.-% zweites Silikat,
    - 5 bis 30 Gew.-% drittes Silikat, und
    - 20 bis 40 Gew.-% Oxid eines Erdalkalimetalls.
  3. Kabel nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das erste Silikat ein Phyllosilikat ist.
  4. Kabel nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass das zweite Silikat eine Verbindung ist, die Magnesiumsilikat umfasst.
  5. Kabel nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass das dritte Silikat eine Verbindung ist, die Aluminiumsilikat umfasst.
  6. Kabel nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass das Oxid eines Erdalkalimetalls eine Reinheit (durch Kalzinierung) von mindestens 96,0 % und vorzugsweise von mindestens 98,0 % hat.
  7. Kabel nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass das Oxid eines Erdalkalimetalls Magnesiumoxid (MgO) ist.
  8. Kabel nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Polymerzusammensetzung mindestens 30 Gew.-% des Zuschlagcocktails in Bezug auf das Gesamtgewicht der Polymerzusammensetzung umfasst.
  9. Kabel nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass das Polymermaterial ein oder mehrere Ethylenpolymere umfasst.
  10. Kabel nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Polymerzusammensetzung mindestens 30 Gew.-% des Polymermaterials in Bezug auf das Gesamtgewicht der Zusammensetzung umfasst.
  11. Kabel nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Polymerzusammensetzung eine Mooney-Viskosität von mindestens 50 hat.
  12. Kabel nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die isolierende Schicht eine nicht vernetzte Schicht ist.
  13. Kabel nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die isolierende Schicht eine elektrisch isolierende Schicht ist.
  14. Kabel nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die isolierende Schicht direkt in physischem Kontakt mit dem länglichen leitenden Element ist.
  15. Kabel nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass das Kabel mindestens zwei längliche leitende Elemente umfasst, wobei jedes längliche leitende Element von mindestens der isolierenden Schicht umgeben ist.
  16. Kabel nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass das Kabel ferner eine Schutzhülle (3) umfasst, die ein oder mehrere isolierte längliche leitende Elemente umgibt.
EP16829295.1A 2015-12-29 2016-12-29 Kabel mit einer feuerbeständigen isolierschicht Active EP3398194B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1563436A FR3046288B1 (fr) 2015-12-29 2015-12-29 Couche isolante resistante au feu pour cable
PCT/FR2016/053679 WO2017115052A1 (fr) 2015-12-29 2016-12-29 Couche isolante résistante au feu pour câble

Publications (2)

Publication Number Publication Date
EP3398194A1 EP3398194A1 (de) 2018-11-07
EP3398194B1 true EP3398194B1 (de) 2021-06-16

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EP16829295.1A Active EP3398194B1 (de) 2015-12-29 2016-12-29 Kabel mit einer feuerbeständigen isolierschicht

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EP (1) EP3398194B1 (de)
ES (1) ES2881290T3 (de)
FR (1) FR3046288B1 (de)
WO (1) WO2017115052A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3098636B1 (fr) * 2019-07-12 2023-10-13 Nexans Câble comprenant une couche résistante au feu
FR3118725B1 (fr) * 2021-01-14 2023-04-14 Nexans Câble armé résistant au feu avec une limitation de la projection de matières incandescentes
FR3119484A1 (fr) * 2021-02-03 2022-08-05 Nexans Câble électrique présentant une conductivité thermique améliorée

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Publication number Priority date Publication date Assignee Title
TWI322176B (en) * 2002-10-17 2010-03-21 Polymers Australia Pty Ltd Fire resistant compositions
FR2946789B1 (fr) * 2009-06-11 2017-01-13 Nexans Cable electrique apte a assurer la continuite de distribution electrique en cas d'incendie.
CN105408406B (zh) * 2013-06-27 2017-09-26 蓝星有机硅法国两合公司 尤其可用于生产电线或电缆的可热硫化聚有机硅氧烷组合物

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FR3046288A1 (fr) 2017-06-30
WO2017115052A1 (fr) 2017-07-06
EP3398194A1 (de) 2018-11-07
FR3046288B1 (fr) 2018-04-27
ES2881290T3 (es) 2021-11-29

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