WO2016005791A1 - Câble d'énergie comportant une couche thermoplastique électriquement isolante - Google Patents

Câble d'énergie comportant une couche thermoplastique électriquement isolante Download PDF

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Publication number
WO2016005791A1
WO2016005791A1 PCT/IB2014/062947 IB2014062947W WO2016005791A1 WO 2016005791 A1 WO2016005791 A1 WO 2016005791A1 IB 2014062947 W IB2014062947 W IB 2014062947W WO 2016005791 A1 WO2016005791 A1 WO 2016005791A1
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WO
WIPO (PCT)
Prior art keywords
dielectric fluid
copolymer
cable according
methyl
polymer
Prior art date
Application number
PCT/IB2014/062947
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English (en)
Inventor
Gabriele Perego
Original Assignee
Prysmian S.P.A.
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 Prysmian S.P.A. filed Critical Prysmian S.P.A.
Priority to PCT/IB2014/062947 priority Critical patent/WO2016005791A1/fr
Priority to ARP150102164A priority patent/AR101118A1/es
Publication of WO2016005791A1 publication Critical patent/WO2016005791A1/fr

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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
    • H01B3/18—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
    • 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
    • H01B3/20—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances liquids, e.g. oils
    • 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
    • H01B3/20—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances liquids, e.g. oils
    • H01B3/22—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances liquids, e.g. oils hydrocarbons
    • 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
    • H01B3/20—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances liquids, e.g. oils
    • H01B3/24—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances liquids, e.g. oils containing halogen in the molecules, e.g. halogenated oils

Definitions

  • the present invention relates to an energy cable.
  • the present invention relates to a cable for transporting or distributing electric energy, especially medium or high voltage electric energy, said cable having a thermoplastic electrically insulating layer containing a dielectric fluid.
  • Cables for transporting electric energy generally include at least one cable core.
  • the cable core for transporting medium or high voltage electric energy is usually formed by at least one electrical conductor sequentially covered by an inner polymeric layer having semiconductive properties, an intermediate polymeric layer having electrically insulating properties and an outer polymeric layer having semiconductive properties.
  • Each cable core is generally surrounded by a screen layer, typically made of metal or of metal and polymeric material.
  • the screen layer can be made in form of wires (braids), of a tape helically wound around the cable core or a sheath longitudinally wrapped around the cable core.
  • the polymeric layers surrounding the conductor are commonly made from a polyolefin-based crosslinked polymer, in particular crosslinked polyethylene (XLPE), or elastomeric ethylene/propylene (EPR) or ethylene/propylene/diene (EPDM) copolymers, also crosslinked, as disclosed, e.g., in WO 98/52197.
  • XLPE crosslinked polyethylene
  • EPR elastomeric ethylene/propylene
  • EPDM ethylene/propylene/diene copolymers
  • thermoplastic materials i.e. polymeric materials which are not crosslinked and thus can be recycled at the end of the cable life.
  • electrical cables comprising at least one coating layer, for example the insulation layer, based on a polypropylene matrix intimately admixed with a dielectric fluid are known and disclosed in WO 02/03398, WO 02/27731, WO 04/066317, WO 04/066318, WO 07/048422, and WO 08/058572.
  • the polypropylene matrix useful for this kind of cables is based on a polypropylene homopolymer or copolymer or both, characterized by a relatively low cristallinity such to provide the cable with the suitable flexibility, but not to impair the mechanical properties and the resistance to pressure at the cable operative and overload temperatures.
  • Performance of the cable coating, especially of the cable insulating layer, is also affected by the presence of the dielectric fluid intimately admixed with said polypropylene matrix.
  • the dielectric fluid should not affect the mentioned mechanical properties and resistance to pressure at high temperature (hereinafter also referred to as "thermopressure resistance") and should be such to be intimately and homogeneously admixed with the polymeric matrix.
  • 4-methyl-l-pentene homopolymer or copolymer also known as, inter alia, poly(4-methyl-l-pentene), polymethylpentene or poly(4- methylpentene-1) as material for cable electric insulation is taught, for example, by US 3327050 and FR 2472823.
  • PMP TPX - POLY-4-METHYLPENTE E- 1
  • US 7,288,721 relates to a cable including an electrical conductor, a polymeric protective layer disposed adjacent to the electrical conductor, a first insulating jacket disposed adjacent the polymeric protective layer and a second insulating jacket disposed adjacent the first insulating jacket.
  • the second insulating jacket can be made of poly(4-methyl-l-pentene) poly olefin.
  • US 7,560,647 relates to a conductor covered with an inside coat and the inside coat is covered with an outermost coat.
  • the resin composition for outermost coat may include polymethylpentene.
  • US 6,908,673 and US 7, 196,270 relates elates to a cable where an extruded covering layer based on a thermoplastic polymer material in admixture with a dielectric liquid.
  • the dielectric liquid comprises at least two non-condensed aromatic rings and a ratio of number of aryl carbon atoms to total number of carbon atoms greater than or equal to 0.6
  • the dielectric liquid when aromatic, has a ratio of number of aromatic carbon atoms with respect to the total number of carbon atoms lower than 0.6.
  • thermoplastic material if a copolymer of propylene with at least one olefin comonomer is used, the comonomer can be 4-methyl-l-pentene. Summary of the invention
  • the Applicant has faced the problem of exploiting the appealing low dielectric constant ( ⁇ ⁇ ⁇ 2.12 ) of PMP for obtaining a power cable insulation layer based on this polymer as main material while escaping the above-mentioned drawbacks thereof, especially for what concerns brittleness and rigidity at room temperature and weak mechanical strength.
  • the Applicant has considered the possibility of manufacturing the electrically insulating layer with PMP as main material admixed with a dielectric fluid.
  • the Applicant has found that an admixture of a 4-methyl-l-pentene (PMP) polymer with a dielectric fluid can be compounded without incurring in immiscibility or exudation phenomena, resulting in a polymeric composition with mechanical properties suitably for the application as cable layer and maintaining the dielectric advantages of the PMP, provided that the dielectric fluid has a low or null aromatic content.
  • PMP 4-methyl-l-pentene
  • the present invention relates to a power cable comprising an electrical conductor and an electrically insulating layer surrounding said electrical conductor, wherein the electrically insulating layer is made of a polymeric composition comprising a 4-methyl-l-pentene polymer as main base material and a dielectric fluid intimately admixed in the polymeric composition, said dielectric fluid having a ratio of number of aromatic carbon atoms with respect to the total number of carbon atoms lower than 0.6.
  • conductor it is meant an electrically conducting element usually made from a metallic material, more preferably aluminium, copper or alloys thereof, either as a rod or as a stranded multi-wire, or a conducting element as above coated with a semi conductive layer.
  • the cable of the invention is a medium voltage (MV) or a high voltage (HV) cable.
  • MV medium voltage
  • HV high voltage
  • the term “medium voltage” generally means a voltage of between 1 kV and 35 kV, whereas “high voltage” means voltages higher than 35 kV.
  • electrically insulating layer it is meant a covering layer made of a material having insulating properties, namely having a dielectric rigidity (dielectric breakdown strength) of at least 5 kV/mm, preferably greater than 10 kV/mm.
  • the electrically insulating layer made of a polymeric composition comprising a 4-methyl-l-pentene polymer as main base material and a dielectric fluid intimately admixed with the polymeric composition according to the invention is the sole insulating layer surrounding the conductor.
  • the electrically insulating layer can have a thickness of at least 8 mm or of at least 12 mm.
  • the thickness of the insulating layer depends on the voltage intended to be carried by the cable and on the overall structure of the cable (conductor compositions and configuration, kind of material employed for the insulating layers, etc.).
  • a polymer insulated cable intended for carrying 400 kV and having a single conductor made of stranded copper wires can have an insulating layer 27 mm thick.
  • the polymeric composition of the invention is a thermoplastic polymeric composition.
  • the 4-methyl- 1-pentene polymer suitable as insulating base material according to the invention is a copolymer of 4-methyl pentene-1 with a C 6 - Cio 1-alkene monomer.
  • main base material is meant that a 4-methyl- 1-pentene polymer is the main polymeric component of the polymeric composition where it is contained in an amount of at least 60 wt%, preferably of at least 80 wt% of the polymer composition.
  • the polymeric composition of the present invention can further contain minor amount (preferably, from 0.5 wt% to 5 wt%) of water tree retardant additives such as ethylene butyl acrylate (EBA), ethylene ethyl acetate (EEA) or ethylene vinyl acetate (EVA).
  • EBA ethylene butyl acrylate
  • EAA ethylene ethyl acetate
  • EVA ethylene vinyl acetate
  • the dielectric fluid As to the dielectric fluid, high compatibility between the dielectric fluid and the polymer base material is necessary to obtain a microscopically homogeneous dispersion of the dielectric fluid in the polymer base material.
  • the dielectric fluid suitable for forming the insulating layer of the present invention should comprise no polar compounds or only a limited quantity thereof, in order to avoid a significant increase of the dielectric losses.
  • the dielectric fluid of the present invention should comprise an amount of polar compounds of from 0 wt% to 2.5 wt%, preferably of from 0.1 wt% to 2.3 wt%, with respect to the total weight of the dielectric liquid.
  • the amount of polar compounds of the dielectric liquid may be determined according to ASTM standard D2007-02.
  • the concentration by weight of the dielectric fluid in the polymeric composition of the invention is lower than the saturation concentration of said dielectric fluid in said material.
  • the saturation concentration of the dielectric fluid in the thermoplastic polymer material may be determined by a fluid absorption method on Dumbell specimens as described, for example, in WO 04/066317.
  • thermomechanical properties of the insulating layer are maintained and exudation of the dielectric fluid from the polymer material is avoided.
  • a dielectric fluid with a low or null aromatic content expressed as the ratio of number of aromatic carbon atoms with respect to the total number of carbon atoms (hereinafter also referred to as C ar /C tot ) lower than 0.6 showed to be compatible with the 4-methyl-l-pentene polymer as main base material of the insulating layer of the invention.
  • "Compatible” means that the chemical composition of the fluid and of the polymer material is such as to result into a microscopically homogeneous dispersion of the dielectric fluid into the polymer material upon mixing the fluid into the polymer, similarly to a plasticizer.
  • the dielectric fluid suitable for the insulating layer according to the invention has a C ar /C t ot of from 0.01 and 0.4.
  • the ratio of number of aromatic carbon atoms with respect to the total number of carbon atoms C ar /C t ot may be determined according to ASTM standard D3238-95(2000)el .
  • the weight ratio between the dielectric fluid and the polymer material may be from 1 :99 to 25:75, preferably from 2:98 to 15:85.
  • a dielectric fluid with a relatively low melting point or low pour point - such that the dielectric fluid is liquid at room temperature or can be melted by a mild heating, for example at 80°C - allows an easy handling of the dielectric fluid which may be melted with no need of additional and complex manufacturing steps (e.g. a melting step of the dielectric fluid) and/or apparatuses for admixing the liquid with the polymer material.
  • the dielectric fluid has a melting point or a pour point of from -130°C to +80°C.
  • the melting point may be determined by known techniques such as, for example, by Differential Scanning Calorimetry (DSC) analysis.
  • the dielectric fluid has a predetermined viscosity in order to control fast diffusion of the liquid within the insulating layer and hence its outward migration.
  • the viscosity of the dielectric fluid should be close to the viscosity of the polymer material at the compounding temperature for easing the admixing of the two components in the compounding apparatus.
  • the dielectric fluid of the invention has a viscosity of from 2 cSt to 500 cSt at 40°C (measured according to ASTM standard D445-03).
  • the dielectric liquid has a dielectric constant of less than or equal to 3.5 and preferably less than 3 at 25°C (measured in accordance with IEC 247).
  • suitable dielectric fluids are: mineral oils such as, for example, naphthenic oils, paraffinic oils, said mineral oils optionally containing at least one heteroatom selected from oxygen, nitrogen or sulphur; liquid paraffins; vegetable oils such as, for example, soybean oil, linseed oil, castor oil; paraffinic waxes such as, for example, polyethylene waxes, polypropylene waxes; synthetic oils such as, for example, silicone oils, alkyl benzenes (such as, for example, dodecylbenzene, di(octylbenzyl)toluene), aliphatic esters (such as, for example, tetraesters of pentaerythritol, esters of sebacic acid, phthalic esters), olefin oligomers (such as, for example, optionally hydrogenated polybutenes or polyisobutenes); or mixtures thereof. Paraffinic oils and naphthenic oils are particularly preferred.
  • Polyaromatic oils could also be employed though their use is questionable as potentially hazardous to health and environment.
  • antioxidants may be added in minor amounts to the polymeric composition according to the present invention, including antioxidants, processing aids or mixtures thereof.
  • antioxidants suitable for the purpose are, for example, distearyl- or dilauryl-thiopropionate and pentaerythrityl-tetrakis [3-(3,5-di-t-butyl-4- hydroxyphen-yl)-propionate], or mixtures thereof.
  • Processing aids which may be added to the polymer composition include, for example, calcium stearate, zinc stearate, stearic acid, or mixtures thereof.
  • the cable of the invention can further comprise at least one, preferably two semiconductive layers.
  • an inner polymeric semi conductive layer can be provided around and in contact with the electrical conductor in a radially internal position with respect to the insulating layer and/or an outer semiconducting layer can be provided to surround the insulating layer.
  • si conductive layer it is meant a covering layer made of a material having semiconductive properties, such as a polymeric matrix added with, e.g., carbon black such as to obtain a volumetric resistivity value, at room temperature, of less than 500 ⁇ -m, preferably less than 20 ⁇ -m.
  • carbon black such as to obtain a volumetric resistivity value, at room temperature, of less than 500 ⁇ -m, preferably less than 20 ⁇ -m.
  • the amount of carbon black can range between 1 and 50% by weight, preferably between 3 and 30% by weight, relative to the weight of the polymer.
  • a semiconductive layer is preferably formed by a semiconductive polymer composition comprising a 4-methyl-l-pentene polymer as main base material and a conductive filler, preferably a carbon black filler.
  • the semiconductive polymer composition/s of the cable of the invention comprise, intimately admixed therein, a dielectric fluid having ratio of number of aromatic carbon atoms with respect to the total number of carbon atoms lower than 0.6.
  • the semiconductive layer/s of the cable of the invention can be made of a composition based on a thermoplastic polymer as disclosed, for example, in US 7, 196,270 or in US7884284, and a conductive filler, preferably a carbon black filler.
  • a thermoplastic polymer as disclosed, for example, in US 7, 196,270 or in US7884284, and a conductive filler, preferably a carbon black filler.
  • the thermoplastic polymer can be selected from:
  • At least one of copolymer (i) and copolymer (ii) being a heterophasic copolymer At least one dielectric fluid, preferably according to the invention, is intimately admixed with the thermoplastic polymer material.
  • the conductive filler is generally dispersed within the polymer composition in a quantity such as to provide the material with above mentioned semiconductive properties.
  • the amount of carbon black can range between 1 and 50% by weight, preferably between 3 and 30% by weight, relative to the weight of the polymer.
  • the use of the same base material for both the insulating layer and the semiconductive layers is particularly advantageous in producing cables for medium or high voltage, since it ensures excellent adhesion between adjacent layers and hence a good electrical behaviour, particularly at the interface between the insulating layer and the inner semiconductive layer, where the electrical field and hence the risk of partial discharges are higher.
  • the polymeric compositions for the cable according to the present invention may be produced by mixing together the 4-methyl-l-pentene polymer, the dielectric fluid and any other optional additive and component, by using methods known in the art. Mixing may be carried out for example by an internal mixer of the type with tangential rotors (Banbury) or with interpenetrating rotors; in a continuous mixer of Ko-Kneader (Buss) type, of co- or counter-rotating double-screw type; or in a single screw extruder.
  • the dielectric fluid may be added to the main base material during the extrusion step by direct injection into the extruder cylinder as disclosed, for example, in US7807091 or WO 02/47092.
  • the 4-methyl-l-pentene polymer can be pre-impregnated with the dielectric fluid, and then fed into the extruder as described in WO2013/171550.
  • the polymer composition of the invention may be used for coating electrical devices in general and in particular cable of different type, for example low voltage cables (i.e. cables carrying a voltage lower than 1 kV), telecommunications cables or combined energy/telecommunications cables, or accessories used in electrical lines, such as terminals, joints, connectors and the like.
  • low voltage cables i.e. cables carrying a voltage lower than 1 kV
  • telecommunications cables or combined energy/telecommunications cables or accessories used in electrical lines, such as terminals, joints, connectors and the like.
  • Figure 1 is a perspective view of an energy cable, particularly suitable for medium or high voltage, according to the invention.
  • the cable (1) comprises a conductor (2), an inner semiconductive layer (3), an insulating layer (4), an outer semi conductive layer (5), a metal screen layer (6) and a sheath (7).
  • the conductor (2) generally consists of metal wires, preferably of copper or aluminium or alloys or composites thereof, stranded together by conventional methods, or of a solid rod made of the mentioned metal/s.
  • the insulating layer (4) may be produced by extruding around the conductor (2) a composition according to the present invention.
  • the semiconductive layers (3) and (5) are also made by extruding polymeric materials usually based on polymers, preferably a polymeric composition according to the present disclosure, made to be semiconductive by adding a conductive filler, usually carbon black.
  • a metal screen layer (6) is usually positioned, made of electrically conducting wires or strips helically wound around the cable core - comprising conductor (2), inner semiconductive layer (3), insulating layer (4) and outer semiconductive layer (5) -, or of an electrically conducting tape longitudinally wrapped and overlapped (preferably glued) onto the underlying layer.
  • the electrically conducting material of said wires, strips or tape is usually copper or aluminium or alloys or composites thereof.
  • the screen layer (6) may be covered by a sheath (7), generally made from a polyolefin, usually polyethylene.
  • the cable can be also provided with a protective structure (not shown in Figure 1) the main purpose of which is to mechanically protect the cable against impacts or compressions.
  • This protective structure may be, for example, a metal reinforcement or a layer of expanded polymer as described in WO 98/52197 in the name of the Applicant.
  • the cable according to the present invention may be manufactured in accordance with known methods, for example by extrusion of the various layers around the central conductor.
  • the extrusion of two or more layers is advantageously carried out in a single pass, for example by the tandem method in which individual extruders are arranged in series, or by co-extrusion with a multiple extrusion head.
  • the screen layer is then applied around the so produced cable core.
  • the sheath according to the present invention is applied, usually by a further extrusion step.
  • the cable of the present invention is preferably used for alternating current (AC) power transmission.
  • FIG. 1 shows only one embodiment of a cable according to the invention. Suitable modifications can be made to this embodiment according to specific technical needs and application requirements without departing from the scope of the invention.
  • compositions were prepared with the amounts reported in Table 1 (expressed as % by weight with respect to the total weight of the composition).
  • the 4-methyl-l-pentene polymer was fed directly into the extruder hopper.
  • the dielectric fluid previously mixed with the antioxidant, was subsequently injected at high pressure into the extruder.
  • a laboratory twin screw extruder was used.
  • Aromatic dielectric fluid 9.75 —
  • Aromatic dielectric fluid dibenzyltoluene (MarlothermTM SH, Sasol Olefins & Surfactants GmbH) having an aromatic carbon atoms/total carbon atoms ratio of 0.86;
  • Low aromatic dielectric fluid naphthenic oil (NyflexTM 800, Nynas AB) having an aromatic carbon atoms/total carbon atoms ratio of 0.05;
  • Antioxidant 4,6-bis (octylthiomethyl)-o-cresol.
  • composition of comparative Example 2 - where PMP is admixed with a dielectric fluid containing a substantial aromatic component (having an aromatic carbon atoms/total carbon atoms ratio greater than 0.6) - could not be evaluated in many tests because the dielectric fluid exudated from the composition of comparative Example 2 even at room temperature, making any measurements impossible or unreliable. Such a behaviour is in line with what taught by the prior art about the low affinity of PMP.
  • Example 3 The composition of Example 3 according to the invention was also tested for evaluating the dielectric strength thereof.
  • EFI models were tested in silicon oil in alternate and direct current. In alternate current, with a voltage ramp of 2 kV/s, the dielectric strength of the composition of Example 3 was of 139 kV/mm at room temperature. In direct current, with a voltage ramp of 20 kV + 2 kV/15 sec, the dielectric strength of the composition of Example 3 was >205 kV/mm at 70°C.

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  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Organic Insulating Materials (AREA)
  • Cable Accessories (AREA)

Abstract

L'invention concerne un câble de puissance comprenant un conducteur électrique et une couche électriquement isolante entourant ledit conducteur électrique, la couche électriquement isolante étant constituée d'une composition polymère comprenant un polymère du 4-méthyl-1-pentène comme matériau de base principal et un fluide diélectrique mélangé intimement à la composition polymère, ledit fluide diélectrique présentant un ratio du nombre d'atomes de carbone aromatiques par rapport au nombre total d'atomes de carbone inférieur à 0,6. Le mélange du polymère de 4-méthyl-1-pentène (PMP) à un fluide diélectrique peut être composé sans encourir de phénomènes d'immiscibilité ou d'exsudation, résultant en une composition polymère dont les propriétés mécaniques conviennent à l'application comme couche de câble et maintenant les avantages diélectriques du PMP, à condition que le fluide diélectrique présente une teneur en aromatiques faible ou nulle.
PCT/IB2014/062947 2014-07-08 2014-07-08 Câble d'énergie comportant une couche thermoplastique électriquement isolante WO2016005791A1 (fr)

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Application Number Priority Date Filing Date Title
PCT/IB2014/062947 WO2016005791A1 (fr) 2014-07-08 2014-07-08 Câble d'énergie comportant une couche thermoplastique électriquement isolante
ARP150102164A AR101118A1 (es) 2014-07-08 2015-07-07 Conector de pantalla para cables eléctricos y conjunto de empalme que comprende dicho conector de pantalla

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PCT/IB2014/062947 WO2016005791A1 (fr) 2014-07-08 2014-07-08 Câble d'énergie comportant une couche thermoplastique électriquement isolante

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4390976A1 (fr) * 2022-12-23 2024-06-26 Nexans Couche de revêtement obtenue à partir d'une composition polymère comprenant au moins un matériau polymère thermoplastique et au moins un composé comprenant au moins un groupe nitrile

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US3327050A (en) 1964-07-29 1967-06-20 Ici Ltd Cables with 4-methyl pentene-1 primary insulation
FR2472823A1 (fr) 1979-12-28 1981-07-03 Cables De Lyon Geoffroy Delore Cable electrique a isolant a hautes performances physico-chimiques
WO1998052197A1 (fr) 1997-05-15 1998-11-19 Pirelli Cavi E Sistemi S.P.A. Cable avec revetement resistant aux impacts
WO2002003398A1 (fr) 2000-06-28 2002-01-10 Pirelli Cavi E Sistemi Spa Cable a gaine recyclable
WO2002027731A1 (fr) 2000-09-28 2002-04-04 Pirelli S.P.A. Cable a enveloppe recyclable
WO2002047092A1 (fr) 2000-12-06 2002-06-13 Pirelli S.P.A. Procede de production de cable a revetement recyclable
WO2004066318A1 (fr) 2003-01-20 2004-08-05 Pirelli & C. S.P.A. Cable dote d'une couche de revetement recyclable
US6908673B2 (en) 2000-06-28 2005-06-21 Pirelli Cavi E Sistemi S.P.A. Cable with recyclable covering
WO2007048422A1 (fr) 2005-10-25 2007-05-03 Prysmian Cavi E Sistemi Energia S.R.L. Câble d’alimentation
US7288721B2 (en) 2004-12-28 2007-10-30 Schlumberger Technology Corporation Electrical cables
WO2008058572A1 (fr) 2006-11-15 2008-05-22 Prysmian S.P.A. Câble électrique
US20090025978A1 (en) * 2005-04-28 2009-01-29 Autonetworks Technologies, Ltd. Non-Halogenous Insulated Wire and a Wiring Harness
US7807091B2 (en) 2003-10-31 2010-10-05 Prysmian Cavi E Sistemi Energia S.R.L. Method and plant for the introduction of a liquid into a molten mass under pressure
WO2012084055A1 (fr) 2010-12-23 2012-06-28 Prysmian S.P.A. Procédé en continu pour la fabrication d'un câble de puissance haute tension
WO2013171550A1 (fr) 2012-05-18 2013-11-21 Prysmian S.P.A. Procédé de production d'un câble électrique comprenant une couche d'isolation électrique thermoplastique

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Publication number Priority date Publication date Assignee Title
US3327050A (en) 1964-07-29 1967-06-20 Ici Ltd Cables with 4-methyl pentene-1 primary insulation
FR2472823A1 (fr) 1979-12-28 1981-07-03 Cables De Lyon Geoffroy Delore Cable electrique a isolant a hautes performances physico-chimiques
WO1998052197A1 (fr) 1997-05-15 1998-11-19 Pirelli Cavi E Sistemi S.P.A. Cable avec revetement resistant aux impacts
US6908673B2 (en) 2000-06-28 2005-06-21 Pirelli Cavi E Sistemi S.P.A. Cable with recyclable covering
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