EP0203129A1 - Revetement isolant souple resistant au feu pour conduites, fils, cables electriques et fibres optiques. - Google Patents
Revetement isolant souple resistant au feu pour conduites, fils, cables electriques et fibres optiques.Info
- Publication number
- EP0203129A1 EP0203129A1 EP19850905839 EP85905839A EP0203129A1 EP 0203129 A1 EP0203129 A1 EP 0203129A1 EP 19850905839 EP19850905839 EP 19850905839 EP 85905839 A EP85905839 A EP 85905839A EP 0203129 A1 EP0203129 A1 EP 0203129A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- coating
- polymer
- mica
- thermostable
- 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.)
- Granted
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 71
- 239000011248 coating agent Substances 0.000 title claims abstract description 63
- 230000003287 optical effect Effects 0.000 title 1
- 229920000642 polymer Polymers 0.000 claims abstract description 39
- 239000003365 glass fiber Substances 0.000 claims abstract description 27
- 239000010445 mica Substances 0.000 claims abstract description 23
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 23
- 229920005989 resin Polymers 0.000 claims abstract description 12
- 239000011347 resin Substances 0.000 claims abstract description 12
- 229910010272 inorganic material Inorganic materials 0.000 claims abstract description 10
- 150000002484 inorganic compounds Chemical class 0.000 claims abstract description 5
- -1 polytetrafluoroethylene Polymers 0.000 claims description 25
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 24
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 24
- 239000000203 mixture Substances 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
- 239000004642 Polyimide Substances 0.000 claims description 6
- 239000010954 inorganic particle Substances 0.000 claims description 6
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 6
- 229920001721 polyimide Polymers 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 4
- 239000004962 Polyamide-imide Substances 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 239000011575 calcium Substances 0.000 claims description 4
- 229910052791 calcium Inorganic materials 0.000 claims description 4
- 230000009970 fire resistant effect Effects 0.000 claims description 4
- 239000011777 magnesium Substances 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- 239000000395 magnesium oxide Substances 0.000 claims description 4
- 229920002492 poly(sulfone) Polymers 0.000 claims description 4
- 229920002312 polyamide-imide Polymers 0.000 claims description 4
- 229920006393 polyether sulfone Polymers 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 239000004695 Polyether sulfone Substances 0.000 claims description 3
- 239000000378 calcium silicate Substances 0.000 claims description 3
- 229910052918 calcium silicate Inorganic materials 0.000 claims description 3
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims description 3
- 239000013307 optical fiber Substances 0.000 claims description 3
- 229920001021 polysulfide Polymers 0.000 claims description 3
- 239000005077 polysulfide Substances 0.000 claims description 3
- 150000008117 polysulfides Polymers 0.000 claims description 3
- 235000012239 silicon dioxide Nutrition 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- 239000004020 conductor Substances 0.000 abstract description 12
- 239000011819 refractory material Substances 0.000 abstract description 6
- 239000002245 particle Substances 0.000 abstract description 5
- 239000006260 foam Substances 0.000 abstract description 3
- 238000010292 electrical insulation Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 239000011230 binding agent Substances 0.000 description 11
- 239000006185 dispersion Substances 0.000 description 10
- 239000011521 glass Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000004744 fabric Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000011147 inorganic material Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 239000011707 mineral Substances 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 239000012764 mineral filler Substances 0.000 description 4
- 239000004800 polyvinyl chloride Substances 0.000 description 4
- 229920000915 polyvinyl chloride Polymers 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 239000010425 asbestos Substances 0.000 description 3
- 239000002952 polymeric resin Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 229910052895 riebeckite Inorganic materials 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 229920002050 silicone resin Polymers 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000009954 braiding Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 description 2
- 229920006380 polyphenylene oxide Polymers 0.000 description 2
- 239000011253 protective coating Substances 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 229920001774 Perfluoroether Polymers 0.000 description 1
- 229920002319 Poly(methyl acrylate) Polymers 0.000 description 1
- 239000004693 Polybenzimidazole Substances 0.000 description 1
- 239000004697 Polyetherimide Substances 0.000 description 1
- 229920000292 Polyquinoline Polymers 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 239000006121 base glass Substances 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- YGANSGVIUGARFR-UHFFFAOYSA-N dipotassium dioxosilane oxo(oxoalumanyloxy)alumane oxygen(2-) Chemical compound [O--].[K+].[K+].O=[Si]=O.O=[Al]O[Al]=O YGANSGVIUGARFR-UHFFFAOYSA-N 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 125000002573 ethenylidene group Chemical group [*]=C=C([H])[H] 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical group FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 239000004811 fluoropolymer Substances 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052627 muscovite Inorganic materials 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 229910052628 phlogopite Inorganic materials 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920013655 poly(bisphenol-A sulfone) Polymers 0.000 description 1
- 229920002493 poly(chlorotrifluoroethylene) Polymers 0.000 description 1
- 229920003203 poly(dimethylsilylene-co-phenylmethyl- silylene) polymer Polymers 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920002627 poly(phosphazenes) Polymers 0.000 description 1
- 229920006260 polyaryletherketone Polymers 0.000 description 1
- 229920002480 polybenzimidazole Polymers 0.000 description 1
- 229920002577 polybenzoxazole Polymers 0.000 description 1
- 239000005023 polychlorotrifluoroethylene (PCTFE) polymer Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001601 polyetherimide Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920001955 polyphenylene ether Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 229920002620 polyvinyl fluoride Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
-
- 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
- H01B3/443—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 vinylhalogenides or other halogenoethylenic compounds
- H01B3/445—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 vinylhalogenides or other halogenoethylenic compounds from vinylfluorides or other fluoroethylenic compounds
Definitions
- the invention relates to a flexible fire-resistant insulating coating, based on mica, thermostable polymer and glass fibers, which provides its insulating properties at temperatures of the order of
- I 000 ° C consisting of one or more layers of mica, a layer of thermostable polymer or a mixture of ther ⁇ mostable polymer and refractory inorganic particles, a layer of glass fibers impregnated with a thermostable polymer or a thermostable polymer charged with refractory inorganic particles, and a layer of thermostable polymer or thermostable polymer charged with refractory inorganic particles.
- Safety requirements require that, in certain use cases such as those encountered in the nuclear, petroleum, aeronautical, space, naval, chemical, etc. industries, circuits transporting energy or transmitting signals of control or command, can withstand for a sufficient time the high temperatures due, for example, to a fire or, for electrical circuits, to an abnormal rise in the intensity of the current flowing through them, so as to allow the evacuation of personnel and rescue of equipment.
- short circuits or overcurrent it is desired that the significant increase in the temperature of the conductor, or even the melting of the latter, not cause a fire by combustion of the coating.
- polytetrafluoroethylene strip followed by one or more layers of a glass fabric ribbon and a possible coating with a polytetrafluoroethylene dispersion.
- the binder may be polyvinyl acetate, chlorinated or natural rubber or t pe 0 GRS, polymethyl methacrylate, poly methyl acrylate, polyurethane elastomer, polyvinyl chloride, polychloride of polyvinyl chloride. vinylidene, an epoxy resin, polystyrene or, alternatively, an acrylonitrile - butadiene - styrene terpolymer.
- FR-A 2,482,769 which describes an insulating, flexible and heat-resistant coating, composed of a knitted fabric of glass fibers impregnated with a binder based on acrylic latex loaded with coloidal silica, d alumina, zirconia or calcium silicate.
- cable insulators made of non-flammable plastic materials such as those made of polyvinyl chloride, polyvinylidene chloride, chlorinated rubber f cannot withstand fires for a prolonged period.
- the insulation decomposes and the chlorine which is released combines with the humidity of the air or with the water which is used for extinguishing the fire, forming hydrochloric acid which is highly corrosive with respect to neighboring conductors or metalli ⁇ cal structures.
- Fiberglass loses its mechanical strength around 550 ° C and asbestos around 650 ° C. This latter product is, moreover, now known to be carcinogenic, and efforts are being made to eliminate its use.
- the object of the present invention is to remedy these drawbacks.
- This invention as characterized in the claims, solves the problem of creating a flexible insulation coating capable of protecting wires, cables, conduits and optical fibers from inflammation. or dielectric or insulating ruptures when these are subjected to heating or to the direct action of fire, at temperatures of the order of 800 ° C to 1000 ° C, for periods greater than 15 min.
- Another object of the invention is to obtain a flexible insulation product protecting against fire, which is easy to manufacture and to apply, compared to the products which are currently part of the state of the art.
- the coating according to the invention is mainly characterized in that the layer of thermostable polymer, which is superimposed on the layer or layers of mica, consists of polyimide, polyamide-imide of polysulfone, polyethersulfone, phenilene polysulfide, silicone or polytetrafluoroethylene deposited by coating, in that the thermostable polymer which impregnates the layer of glass fibers and which constitutes the final layer of the coating is a resin loaded or not loaded with refractory inorganic compounds or with polytetrafluoroethylene, in that the inorganic refractory compounds used are titanium dioxide, zirconium dioxide, magnesium oxide, silicon dioxide, aluminum trioxide (Al_ 0 consider), magnesium, calcium or aluminum silicates, silicon and zirconium carbides, alumina (Al- 0 consult), zirconia (Zr 0 special), calcium silicate, or any mixture of these compounds, and in that q the thermostable polymer constituting the final coating of the coating is poly
- the coating has good characteristics of reliability and resistance to weathering, under normal conditions of use as under extreme conditions (environment of fire), is not a propagator of the fire, "-resistant to shocks, vibrations and splashes of water or extinguishing fluids and emits little or no toxic and / or corrosive fumes.
- the organic parts decompose, the parts inorganics melt to give a foam which vitrifies and ensures good sealing as well as excellent electrical insulation.
- FIG. 1 represents a partial perspective view of an electric cable, a pipe or a pipe, surrounded by the covering according to a first embodiment.
- FIG. 2 shows a partial perspective view of an electric cable, a pipe or a pipe surrounded by the coating according to a second embodiment.
- FIG. 3 represents a cross section along AA of FIG. 1.
- FIG. 4 represents a cross section along BB of FIG. 2.
- FIG. 5 shows a cross section of an electrical cable comprising three primary elements as shown in Figure 1, surrounded by the coating according to the first embodiment.
- the coating according to the first embodiment comprises a first inner layer 2 surrounding the conductor, the pipe or the pipe 1.
- This first layer 2 can be coated with a layer 3 made of the same material.
- the coating se ⁇ lon the second embodiment comprises a first inner layer 8 surrounding the conductor, the pipe or the pipe 7.
- This first layer 8 can be coated with a layer 9 made of the same material.
- a coating according to the first embodiment consisting of an outer layer 18, two intermediate layers 16 and 17 and two inner layers 14 and 15, surrounds three primary conductors 1 coated in the same manner as described in FIG. 1.
- the wires 13 constitute jams intended to fill the interstices in order to obtain a cylindrical assembly.
- the inner layers 2 and 3 or 8 and 9 of the coating are preferably made of glass fibers in the form of a flexible fabric coated with a polymeric resin serving as an adhesive and supporting particles of mica.
- the material used is therefore in the form of a ribbon with a width between 6 mm and 25 mm or more and a thickness between 0.05 mm and 0.2 mm, consisting of a continuous layer of glitter of mica deposited on a support of glass fibers woven through an adhesive binder.
- the mica can be of muscovite or phlogopite type and the binder of silicone elastomer, polyimide, polyamide-imide or any other thermostable polymer.
- the intermediate layer 4 of the coating described in FIG. 1 / as well as the intermediate layers 4 and 16 of the cable described in FIG. 5, consist of a polymer which can optionally be loaded with inorganic compounds of refractory types.
- polymers which can be used for the manufacture of this layer mention may be made of: - Polyimides: polyarylamide, polyamino-bis-maleimide, polyether-imide, polyimidine, polyimidazopyrrolone.
- - Polysulfones polyarylsulfone, polyphenylene ether sulfone, polyethersulfone bisphenol A polysulfone.
- - Fluoropolymers polytetrafluoroethylene, polychlorotrifluoroethylene, polyvinyl fluoride, polyvinylidene fluoride.
- - Fluorinated copolymers tetrafluoroethylene - perfluoropropene, ethylene - tetrafluoroethylene, ethylene - chlorotrifluoroethylene, tetrafluoroethylene - perfluoroalkoxy and other thermostable polymers such as: polyparabanic acid, polybenzoxazole, polybenzimidazole -3-4 oxadiazole, polyquinolines, polyquinoxalines, polypyrrones, polyphenanthroline, polycarboranes, polyphosphazenes, polystyrylpyridine, polysilastyrene, polyaryletherketone, polyphenylene oxide modified or polyphenylene oxide, phenylene or silicone resins.
- the preferred resins for making layers 4 and 16 of the coating are: polyimides, polyamide-imides, polysulfones and polyethersulfones, phenylene polysulfide, silicone resins and polytetrafluoroethylene.
- These resins are preferably applied to the inner layers 2 or 3 corresponding to the coating shown in Figure 1 and to the inner layers 2 or 3 and 14 or 15 of the cable shown in Figure 5, using a technique of coating well known to those skilled in the art.
- the resin can be dissolved in an appropriate solvent or dispersed in water.
- the polymer resins can be loaded with refractory inorganic compounds.
- These refractory materials are in a finely divided form so that they can merge with the glass fabric making up layers 2 or 3 and 14 or 15 and with the glass fibers making up layers 5, 11 and 17 when they are subjected to temperatures above 950 ° C.
- These refractory materials can be oxides of titanium, of zinc, of magnesium, of silicon, of aluminum or of calcium, of magnesium, of calcium or of aluminum, of carbides of silicon or of zirconium, etc.
- the resins composing the binder used to adhere the refractory materials to the fabrics and glass fibers located in the surrounding layers, must decompose at high temperatures without giving a flame. At temperatures above 950 ° C the refractory materials melt on the surface of the glass fibers to give a refractory type structure resistant to temperatures much higher than that of the melting temperature of the base glass.
- the intermediate layer 10, corresponding to the coating shown in Figure 2 ⁇ consists of a polytetrafluoroethylene tape whose thickness and width are adapted to the diameter of the element to be protected.
- the intermediate layers 5 and 17 of the coatings represented in FIGS. 1 and 5 consist of a braiding of glass fibers coated with the resin making up the intermediate layers 4 or 16, or, possibly, of a different resin such as those evo ⁇ before.
- these thermostable resins can optionally be loaded with inorganic refractory materials, of the same nature as those making up the layers 4 and 16.
- the outer layers 6 and 18 of the coatings represented in FIGS. 1 and 5 are of the same nature as those described for the intermediate layers 4 and 16, namely that they consist of a thermostable polymer possibly loaded with an inorganic material. refractory of the type described above.
- the outer layer 12, corresponding to the coating shown in FIG. 2 and to the second embodiment of the invention, is made up of polytetrafluoroethylene deposited on the layer 11 by coating by means of a dispersion.
- the complete manufacture of a coating according to the first embodiment is carried out as follows:
- the first layer of mica tape is wound helically around the element to be protected, using a conventional tape machine, so that the layer of mica particles is turned towards the element to protect.
- the ribbon is wound with a covering, for example of 50% or 66%, so as to ensure a good heat seal.
- a thin layer on the order of 2 to 10 hundredths of a millimeter, is then deposited by coating on the previous layer with a binder based on thermostable polymeric resin.
- This coating is carried out by dipping in a solution containing the polymer, when the latter is soluble in a solvent, or by dipping in an aqueous dispersion of the polymer when the latter is insoluble in all organic solvents.
- the solutions contain between 10 and 50% # by weight, and polymer dispersions between 10 and 40% by weight of polymer.
- the solvents or the dispersing agents are first evaporated by passage through an oven, then the resins can be optionally crosslinked in another oven at a higher temperature.
- compositions are preferably used: - binder: thermostable polymer 10 to 45%, refractory mineral fillers 5 to 25%, solvent 30 to 85%.
- compositions are preferably used:
- the dispersions used for coating may optionally contain a thickening agent, the role of which is to adjust the viscosity so as to facilitate coating.
- the thickener used is generally an aqueous dispersion at 50%, by weight, of an acrylate-vinyl-pyrrolidone copolymer.
- thermostable or refractory mixture as for the previous layer is then applied to the layer of thermostable or refractory resin.
- the glass fiber is coated with the same mixture as that used previously to coat the pipe, the pipe or the cable and this according to the same process.
- the coated glass fiber is packaged on small spools specially adapted for a shielding machine.
- the shielding is carried out, in a conventional manner for those skilled in the art, on shielding machines having a number of spindles adapted to the diameter of the pipe, the pipe or the cable to be coated.
- the last operation consists in coating the braided coating described above with a layer of thermostable polymer or a layer of refractory binder, identical to that already described, in the same way.
- the complete manufacture of a coating according to the second embodiment of the invention is carried out as follows: - The first, and possibly the second layer of mica tape, are obtained in the same manner as in the first embodiment.
- a ribbon preferably made of polytetrafluoroethylene ⁇ , the thickness of which can vary, for example, between 7/100 th of a mm and 25/100 th of a mm and the width between 3 and 50 mm.
- This tape is applied with a conventional tape machine, so that the direction of rotation is reversed with respect to the direction of rotation of the mica tape constituting the lower layer.
- This PTFE tape is generally applied with an overlap of 50% or 66%.
- the last operation consists in coating the coating described above with a layer of PTFE.
- aqueous dispersion of 33% by weight of PTFE is used and a process identical to that described in the first process.
- thermostable polymers possibly loaded with refractory mineral materials are intended to confine and securely maintain all the inorganic materials present in the coating.
- the protective re ⁇ clothing according to the invention are resistant to impact and vi ⁇ bration as well as very large temperature variations.
- the invention allows the production of protective coatings against heat, very resistant to flames and suitable for insulating pipes, conduits, wires or electric cables. More particularly, in the case of electrical wires and cables, these coatings make it possible to transmit electrical energy, while being subjected to the intense heat of a fire while having the advantage of being flexible.
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Laminated Bodies (AREA)
- Paints Or Removers (AREA)
- Insulated Conductors (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8418367 | 1984-11-29 | ||
| FR8418367A FR2573910B1 (fr) | 1984-11-29 | 1984-11-29 | Revetement isolant souple resistant au feu pour conduites, fils et cables electriques |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0203129A1 true EP0203129A1 (fr) | 1986-12-03 |
| EP0203129B1 EP0203129B1 (fr) | 1989-05-10 |
Family
ID=9310150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19850905839 Expired EP0203129B1 (fr) | 1984-11-29 | 1985-11-26 | Revetement isolant souple resistant au feu pour conduites, fils, cables electriques et fibres optiques |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0203129B1 (fr) |
| DE (1) | DE3570147D1 (fr) |
| FR (1) | FR2573910B1 (fr) |
| WO (1) | WO1986003329A1 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6255594B1 (en) | 1997-04-10 | 2001-07-03 | Plastic Insulated Cables Limited | Communications cable |
| US6670291B1 (en) | 2000-10-18 | 2003-12-30 | 3M Innovative Properties Company | Laminate sheet material for fire barrier applications |
Families Citing this family (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3544810A1 (de) * | 1985-12-18 | 1987-06-19 | Eilentropp Hew Kabel | Schutzhuelle gegen hitze- und feuereinwirkung von aussen fuer strangfoermiges gut |
| US4804702A (en) * | 1986-04-02 | 1989-02-14 | Pennwalt Corporation | Low smoke and reduced flame fluorinated polymer compositions and cable constructions |
| US4800351A (en) * | 1987-09-10 | 1989-01-24 | Andrew Corporation | Radiating coaxial cable with improved flame retardancy |
| GB8829169D0 (en) * | 1988-12-14 | 1989-01-25 | Vactite Ltd | Fire-resistant electrical insulator |
| JPH0337907A (ja) * | 1989-07-03 | 1991-02-19 | Nippon Rika Kogyosho:Kk | 集成マイカ絶縁薄膜 |
| GB2248845B (en) * | 1990-10-17 | 1994-08-10 | Ass Elect Ind | A sealing composition and a mineral insulated electric cable termination employing such composition |
| US5227586A (en) * | 1991-10-07 | 1993-07-13 | Harbour Industries, (Canada) Ltd. | Flame resistant electric cable |
| US5422614A (en) * | 1993-02-26 | 1995-06-06 | Andrew Corporation | Radiating coaxial cable for plenum applications |
| DE4437596A1 (de) * | 1994-10-20 | 1996-04-25 | Daetwyler Ag | Flammwidrige Zusammensetzung zur Herstellung von elektrischen Kabeln mit Isolations- und/oder Funktionserhalt |
| DE19528439C2 (de) * | 1995-08-02 | 1997-07-03 | Inventa Ag | Kunststoff-Ummantelung für Lichtwellenleiter |
| FR2742259B1 (fr) * | 1995-12-06 | 1998-01-02 | Silec Liaisons Elec | Cable rayonnant ayant une tenue au feu |
| DE19717645C2 (de) * | 1997-04-25 | 2001-01-18 | Daetwyler Ag Altdorf | Keramisierbare flammwidrige Zusammensetzung, Verfahren zur Herstellung und deren Verwendung |
| DE19718476A1 (de) * | 1997-04-30 | 1998-11-05 | Siemens Ag | Lichtwellenleiter mit mindestens zwei aus Kunststoffmaterialien bestehenden Beschichtungen |
| FR2765694B1 (fr) * | 1997-07-01 | 1999-09-10 | Eric Desvalleres | Cable ou guide de lumiere a fibres optiques polymeres et son procede de fabrication pour des applications d'eclairage et d'illumination, dont les proprietes sont la non propagation de la flamme et la resistance au fil incandescent |
| GB2329278B (en) * | 1997-07-14 | 2002-01-16 | Delta Crompton Cables Ltd | Co-axial cables |
| FR2776119B1 (fr) | 1998-03-12 | 2000-06-23 | Alsthom Cge Alcatel | Cable de securite, resistant au feu et sans halogene |
| FR2777382A1 (fr) * | 1998-04-09 | 1999-10-15 | Alsthom Cge Alcatel | Fil electrique et son procede de fabrication |
| JP2003501780A (ja) * | 1999-06-02 | 2003-01-14 | タイコ・エレクトロニクス・コーポレイション | 絶縁された電気導体 |
| US6319604B1 (en) * | 1999-07-08 | 2001-11-20 | Phelps Dodge Industries, Inc. | Abrasion resistant coated wire |
| EP1193722A1 (fr) * | 2000-09-27 | 2002-04-03 | Nexans | Ligne électrique flexible |
| DE10051962A1 (de) | 2000-10-20 | 2002-05-02 | Alcatel Sa | Isolierter elektrischer Leiter mit Funktionserhalt im Brandfall |
| EP1211696A1 (fr) * | 2000-12-01 | 2002-06-05 | Compagnie Royale Asturienne Des Mines, Societe Anonyme | Conducteur électrique isolé |
| US6914093B2 (en) | 2001-10-16 | 2005-07-05 | Phelps Dodge Industries, Inc. | Polyamideimide composition |
| US7973122B2 (en) | 2004-06-17 | 2011-07-05 | General Cable Technologies Corporation | Polyamideimide compositions having multifunctional core structures |
| PL1619694T3 (pl) * | 2004-07-23 | 2013-02-28 | Nexans | Izolowany przewód elektryczny z utrzymaniem funkcji w przypadku pożaru |
| DE102005055290B3 (de) * | 2005-11-21 | 2007-05-03 | Siemens Ag | Glimmerverstärkter Isolierschlauch |
| FR2921511B1 (fr) * | 2007-09-21 | 2010-03-12 | Nexans | Cable electrique resistant a la propagation d'arc electrique |
| US7795538B2 (en) * | 2007-11-06 | 2010-09-14 | Honeywell International Inc. | Flexible insulated wires for use in high temperatures and methods of manufacturing |
| FR2938368B1 (fr) * | 2008-11-13 | 2016-02-12 | Nexans | Cable electrique resistant au feu |
| ITMI20121178A1 (it) | 2012-07-05 | 2014-01-06 | Prysmian Spa | Cavo elettrico resistente a fuoco, acqua e sollecitazioni meccaniche |
| FR2997544B1 (fr) * | 2012-10-29 | 2016-03-25 | Prod Plastiques Performants Holding 3P Holding | Cable comprenant un revetement a base de ptfe |
| ES2921179T3 (es) | 2015-02-10 | 2022-08-19 | Prysmian Spa | Cable resistente al fuego |
| ES2796335T3 (es) | 2016-01-26 | 2020-11-26 | Prysmian Spa | Sistema de cable resistente al fuego |
| CN110853813B (zh) * | 2019-11-27 | 2021-09-28 | 安徽四惠电缆有限公司 | 一种速充充电桩供电电缆及其制作方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4034153A (en) * | 1974-11-18 | 1977-07-05 | Schweizerische Isola-Werke | Electrical cable for transport vehicles and ships |
| NO141732C (no) * | 1977-01-12 | 1984-09-04 | Norsk Kabelfabrik As | Flammebestandig kabelkonstruksjon |
| FR2381377A1 (fr) * | 1977-02-21 | 1978-09-15 | Trefimetaux | Cables electriques de securite, non armes, resistant au feu |
| DE3229352C2 (de) * | 1982-08-06 | 1985-01-24 | AEG-Telefunken Kabelwerke AG, Rheydt, 4050 Mönchengladbach | Halogenfreies, flammwidriges Kabel mit Funktionserhalt im Brandfall für eine bestimmte Zeit |
| FR2534735B1 (fr) * | 1982-10-15 | 1985-07-05 | Habia Sa | Revetement isolant |
-
1984
- 1984-11-29 FR FR8418367A patent/FR2573910B1/fr not_active Expired
-
1985
- 1985-11-26 WO PCT/FR1985/000336 patent/WO1986003329A1/fr not_active Ceased
- 1985-11-26 DE DE8585905839T patent/DE3570147D1/de not_active Expired
- 1985-11-26 EP EP19850905839 patent/EP0203129B1/fr not_active Expired
Non-Patent Citations (1)
| Title |
|---|
| See references of WO8603329A1 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6255594B1 (en) | 1997-04-10 | 2001-07-03 | Plastic Insulated Cables Limited | Communications cable |
| US6670291B1 (en) | 2000-10-18 | 2003-12-30 | 3M Innovative Properties Company | Laminate sheet material for fire barrier applications |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2573910B1 (fr) | 1987-06-19 |
| EP0203129B1 (fr) | 1989-05-10 |
| FR2573910A1 (fr) | 1986-05-30 |
| DE3570147D1 (en) | 1989-06-15 |
| WO1986003329A1 (fr) | 1986-06-05 |
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