CN214043193U - Environment-friendly low-smoke halogen-free flame-retardant armored power cable - Google Patents
Environment-friendly low-smoke halogen-free flame-retardant armored power cable Download PDFInfo
- Publication number
- CN214043193U CN214043193U CN202120221864.1U CN202120221864U CN214043193U CN 214043193 U CN214043193 U CN 214043193U CN 202120221864 U CN202120221864 U CN 202120221864U CN 214043193 U CN214043193 U CN 214043193U
- Authority
- CN
- China
- Prior art keywords
- layer
- retardant
- flame
- shielding layer
- power cable
- 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.)
- Active
Links
- 239000003063 flame retardant Substances 0.000 title claims abstract description 56
- 239000000779 smoke Substances 0.000 title claims abstract description 28
- 239000000945 filler Substances 0.000 claims abstract description 20
- 229920002943 EPDM rubber Polymers 0.000 claims abstract description 19
- 238000002156 mixing Methods 0.000 claims abstract description 19
- -1 polyethylene Polymers 0.000 claims abstract description 16
- 239000004698 Polyethylene (PE) Substances 0.000 claims abstract description 14
- 229920000573 polyethylene Polymers 0.000 claims abstract description 14
- 238000009941 weaving Methods 0.000 claims abstract description 12
- 239000004760 aramid Substances 0.000 claims abstract description 8
- 230000004224 protection Effects 0.000 claims abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims abstract description 7
- 238000000576 coating method Methods 0.000 claims abstract description 7
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 7
- 150000002367 halogens Chemical class 0.000 claims abstract description 7
- 239000002965 rope Substances 0.000 claims abstract description 7
- 230000002265 prevention Effects 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 14
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 12
- 239000010425 asbestos Substances 0.000 claims description 8
- 230000000712 assembly Effects 0.000 claims description 8
- 229910052895 riebeckite Inorganic materials 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 5
- 238000011049 filling Methods 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 4
- 239000011490 mineral wool Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- VOLSCWDWGMWXGO-UHFFFAOYSA-N cyclobuten-1-yl acetate Chemical compound CC(=O)OC1=CCC1 VOLSCWDWGMWXGO-UHFFFAOYSA-N 0.000 claims 1
- 230000032683 aging Effects 0.000 abstract description 7
- 230000002708 enhancing Effects 0.000 abstract description 5
- 238000009413 insulation Methods 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 230000035939 shock Effects 0.000 abstract description 2
- 230000017105 transposition Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 110
- 229910052621 halloysite Inorganic materials 0.000 description 6
- 239000002071 nanotube Substances 0.000 description 5
- 239000011256 inorganic filler Substances 0.000 description 4
- 229910003475 inorganic filler Inorganic materials 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- FAHBNUUHRFUEAI-UHFFFAOYSA-M Aluminium hydroxide oxide Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 description 2
- 239000004484 Briquette Substances 0.000 description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L Magnesium hydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 2
- 210000003660 Reticulum Anatomy 0.000 description 2
- 230000006750 UV protection Effects 0.000 description 2
- RJZNFXWQRHAVBP-UHFFFAOYSA-I aluminum;magnesium;pentahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Al+3] RJZNFXWQRHAVBP-UHFFFAOYSA-I 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- PWZFXELTLAQOKC-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide;tetrahydrate Chemical compound O.O.O.O.[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O PWZFXELTLAQOKC-UHFFFAOYSA-A 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910001701 hydrotalcite Inorganic materials 0.000 description 2
- 229960001545 hydrotalcite Drugs 0.000 description 2
- 239000000347 magnesium hydroxide Substances 0.000 description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920001084 poly(chloroprene) Polymers 0.000 description 2
- 239000011527 polyurethane coating Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 235000010215 titanium dioxide Nutrition 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 229920002681 Hypalon Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N al2o3 Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- ZSKCOFJBFXSEDP-UHFFFAOYSA-N formaldehyde;molecular hydrogen Chemical compound [H][H].O=C ZSKCOFJBFXSEDP-UHFFFAOYSA-N 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
Abstract
The utility model discloses a fire-retardant armor power cable of environmental protection low smoke and zero halogen, sinle silk subassembly center on the syntropy transposition of central packing rope, and the sinle silk subassembly includes sinle silk body, internal shield layer, insulating layer, the outer shielding layer of insulating layer surface fixed connection, and it has the fire prevention filler to fill between outer shielding layer and the insulating layer, and the inner sheath layer is connected to outer shielding layer surface fixed connection, and inner sheath layer surface connects gradually armor, flame retardant coating, outer sheath layer and prevents the ultraviolet layer. The inner shielding layer is an aluminum tape bonding shielding polyethylene outer sleeve, so that the anti-interference performance and the shock resistance of the cable can be effectively enhanced. The insulating layer is wrapped on the outer side of the shielding layer by adopting modified ethylene propylene diene monomer rubber, and has good flame retardance, high temperature resistance, cold resistance and aging resistance. And fireproof filler is filled between the insulating layer and the outer shielding layer, so that the wire core can be effectively protected in a heat insulation manner. The outer shielding layer is formed by mixing and weaving metal wires and aramid fibers and has the performance of shielding interference and enhancing transverse and longitudinal stretching.
Description
Technical Field
The utility model relates to a cable field especially relates to a fire-retardant armor power cable of environmental protection low smoke and zero halogen.
Background
At present, with the promotion of comprehensive national power in China, various fields are developed vigorously, the demand of power cables is increasing day by day, the power cables are used for transmitting and distributing electric energy, and the power cables are often used for urban underground power grids, power station leading-out lines, power supply in industrial and mining enterprises, underwater power transmission lines crossing river, sea and the like.
For a long time, the coating materials of the traditional cables are mainly halogen-containing polymers such as polyvinyl chloride (PVC), Chloroprene Rubber (CR), chlorosulfonated polyethylene (CSM) and the like, and these materials have flame retardant property and can inhibit the spread of flame, but when the materials are combusted, a large amount of harmful gases such as hydrogen chloride and carbon monoxide and thick smoke are generated, and more than 80% of the causes of death of people in fire accidents are related to the harmful gases and thick smoke generated by the combustion of the materials at the fire scene. The existing power cable has general high-temperature resistance and fire resistance, and once the cable is exposed to sunlight for a long time, the consequences of a sudden fire are not considered. Patent CN201811004472.9 discloses a fireproof and wear-resistant copper-core armored power cable, which achieves the purpose of fire prevention and fire retardation by setting an asbestos flame-retardant layer, a fire-resistant fiber layer and a flame-retardant filling layer. However, since the invention patent does not have a measure for ultraviolet protection, if the work is exposed to sunlight for a long time, a fire may be caused by local high temperature. The outer sheath layer of the invention has no flame retardant effect, and the flame retardant is carried out from the asbestos layer of the inner layer at the cost of sacrificing the outer sheath layer. This necessarily results in a great deal of heat and smoke being emitted by the burning of the outer layer of the cable, which makes rescue work extremely difficult.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fire-retardant armor power cable of environmental protection low smoke and zero halogen to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a fire-retardant armor power cable of environmental protection low smoke and zero halogen, includes sinle silk subassembly and center packing rope, the sinle silk subassembly is around center packing rope syntropy transposition, the sinle silk subassembly includes sinle silk body, sinle silk body surface cladding shielding layer, the outer surface cladding of internal shield layer has the insulating layer, the outer surface fixed connection external shield of insulating layer, it has the fire prevention filler to fill between external shield layer and the insulating layer, the outer surface fixed connection inner sheath layer of external shield layer, inner sheath layer surface connects gradually armor, flame retardant coating, outer jacket layer and prevents the ultraviolet layer. The cable core is a co-directional twisted unit folded yarn, the cable core is one of a copper conductor and a silver-plated or tin-plated copper conductor, the outer surface of the cable core is fixedly connected with an inner shielding layer, the outer surface of the inner shielding layer is fixedly connected with an insulating layer, the insulating layer is wrapped in the outer side of the shielding layer in an extrusion mode by adopting modified halogen-free low-smoke flame-retardant ethylene propylene diene monomer, and the modified ethylene propylene diene monomer is prepared by taking ethylene propylene diene monomer as a matrix and adding flame retardant agent magnesium aluminum hydrotalcite, aluminum hydroxide and magnesium hydroxide. The LSOH-EPDM rubber material with good flame retardant property, high temperature resistance, cold resistance and aging resistance is obtained by controlling the dosage of the flame retardant. The fireproof filler is filled between the insulating layer and the outer shielding layer, the outer side of the outer shielding layer is fixedly connected with the inner sheath layer, the outer side of the inner sheath layer is fixedly connected with the armor layer, the outer side of the armor layer is fixedly connected with the fireproof fiber layer, the outer side of the fireproof layer is fixedly connected with the outer sheath layer, and the surface of the outer sheath layer is uniformly coated with the protective layer. The inner shielding layer is a plastic-coated aluminum tape bonding shielding polyethylene outer sleeve.
As a further improvement of the above technical solution:
the thickness of the insulating layer is 1-2 mm.
The fireproof filler is one or the combination of two of fireproof rock wool and glass fiber, and both have good fireproof and flame-retardant properties.
The outer shielding layer is formed by mixing and weaving tinned steel wires and aramid fibers, and the weaving density is not lower than 50%. The tinned steel wire is used for shielding interference and ensuring the transmission efficiency of the cable. Aramid filaments are used to enhance the transverse and longitudinal tensile properties.
The fireproof layer is made of flame-retardant asbestos and is 1mm-3mm thick.
The outer sheath layer is made by blending halogen-free low-smoke flame-retardant polyethylene/ethylene-vinyl acetate/ethylene propylene diene monomer rubber and then adding a flame retardant to extrude, and the extrusion thickness is 1mm-2 mm. The low-density polyethylene has good electrical insulation and physical properties, has small smoke generation amount, but has nonpolar molecules and is difficult to be compatible with inorganic fillers. The tensile strength of the ethylene-vinyl acetate copolymer is less than that of polyethylene, but the elongation at break is greater than that of the polyethylene, and the molecule has polarity and good compatibility with inorganic filler. The blending of polyethylene and ethylene-vinyl acetate copolymer can exert respective advantages. The ethylene propylene diene monomer has excellent ageing resistance, corrosion resistance and high temperature resistance, and the ethylene propylene diene monomer is added on the basis of blending of polyethylene and ethylene-vinyl acetate copolymer to improve the material performance, wherein the blending ratio is 38: 52: 10. the flame retardant magnesium hydroxide and the inorganic filler halloysite nanotube are added on the basis of blending, the halloysite mainly comprises silicon dioxide and aluminum oxide, the fillers can enhance the tensile strength and the bending strength of the composite material, and the used base materials are environment-friendly and halogen-free. Meanwhile, due to the hollow structural characteristic of the halloysite nanotube, the outer sheath layer can form a structure similar to the loose and porous honeycomb briquette after high temperature, so that the heat insulation and flame retardance are further effectively realized.
The coating thickness of the ultraviolet-proof layer is 0.5mm-1 mm. The ultraviolet-proof layer adopts a treatment process of doping the waterborne polyurethane coating adhesive with the superfine TiO2 powder material, so that the ultraviolet-proof and ageing resistance of the cable can be effectively improved.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a fire-retardant armor power cable of environmental protection low smoke and zero halogen passes through oversheath layer, flame retardant coating, fire prevention filler and the inside insulating layer that has the fire-retardant characteristic of fire prevention, provides four layers of protection for central cable core to solve the not enough of current system. The outer sheath layer is prepared by mixing and melting polyethylene/ethylene-vinyl acetate copolymer/ethylene propylene diene monomer, adding a halloysite nanotube and other flame retardants, uniformly mixing, has good electrical insulation and physical properties, small smoke generation amount, excellent aging resistance, corrosion resistance and high temperature resistance, adding the flame retardant magnesium hydroxide/inorganic filler halloysite nanotube on a blending basis, enhancing the tensile strength and bending strength of the composite material, improving the flame retardant property, and using the base material which is environment-friendly and halogen-free. Due to the hollow structural characteristic of the halloysite nanotube, the outer sheath layer can form a structure similar to the loose and porous structure of honeycomb briquette on the surface after high temperature, thereby achieving effective heat insulation. The fireproof layer is made of flame-retardant asbestos, the thickness of the fireproof layer is 1mm-3mm, and the inner core is further effectively protected in a heat insulation mode. The fireproof insulating layer is made of modified ethylene propylene diene monomer rubber, the ethylene propylene diene monomer rubber is used as a matrix, and flame retardants, namely magnesium aluminum hydrotalcite, aluminum hydroxide and magnesium hydroxide are added. The flame retardant has good flame retardant property, high temperature resistance, cold resistance and aging resistance by controlling the dosage of the flame retardant. The inner shielding layer is an aluminum tape bonding shielding polyethylene outer sleeve, so that the anti-interference performance and the shock resistance of the cable can be effectively enhanced. The outer shielding layer is formed by mixing and weaving metal wires and aramid fibers, so that the shielding layer has the performance of shielding interference and enhancing transverse and longitudinal stretching. A protective layer is attached to the outer surface of the outer sheath layer, and the ultraviolet resistance and the ageing resistance of the cable can be effectively improved by adopting a treatment process of doping the aqueous polyurethane coating glue with the superfine TiO2 powder material.
Drawings
Fig. 1 is a schematic view of the internal structure of the cable of the present invention.
Reference numerals: 11. a wire core body; 12. an inner shield layer; 13. an insulating layer; 2. a center-fill cord; 3. a fire-resistant filler; 4. an outer shield layer; 5. an inner jacket layer; 6. an armor layer; 7. a fire barrier layer; 8. an outer jacket layer; 9. and an ultraviolet-proof layer.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
As shown in fig. 1, the environment-friendly low-smoke halogen-free flame-retardant armored power cable of the embodiment includes, from inside to outside, wire core assemblies 1, fireproof fillers 3, an outer shielding layer 4, an inner sheath layer 5, an armor layer 6, a fireproof layer 7, an outer sheath layer 8 and an ultraviolet-proof layer 9, wherein 5 wire core assemblies 1 are twisted around a central filling rope 2 to form a cable, each wire core assembly 1 includes a wire core body 11, an inner shielding layer 12 is coated on the outer surface of the wire core body 11, and an insulating layer 13 is coated on the outer surface of the inner shielding layer 12; the fireproof filler 3 is filled outside the finished cable, the inner shielding layer 12 is a plastic-coated aluminum tape bonding shielding polyethylene outer sleeve, and the insulating layer 13 is formed by extruding and wrapping a modified ethylene propylene diene monomer rubber material. The thickness of the insulating layer 13 is 1 mm. The fireproof filler 3 is fireproof rock wool. The outer shielding layer 4 is formed by mixing and weaving tinned steel wires and aramid fibers, and the weaving density is 50%. The fireproof layer 7 is made of flame-retardant asbestos and is 1mm thick. The outer sheath layer 8 is made by blending halogen-free low-smoke flame-retardant polyethylene/ethylene-vinyl acetate/ethylene propylene diene monomer rubber and then adding a flame retardant to extrude, and the extruded thickness is 1 mm. The ultraviolet-proof layer 9 was coated to a thickness of 0.5 mm.
Example 2
The environment-friendly low-smoke halogen-free flame-retardant armored power cable comprises wire core assemblies 1, fireproof fillers 3, an outer shielding layer 4, an inner sheath layer 5, an armor layer 6, a fireproof layer 7, an outer sheath layer 8 and an ultraviolet-proof layer 9, wherein the wire core assemblies 1 are arranged from inside to outside, the 5 wire core assemblies 1 are twisted around a central filling rope 2 to form a cable, each wire core assembly 1 comprises a wire core body 11, the outer surface of each wire core body 11 is coated with an inner shielding layer 12, and the outer surface of each inner shielding layer 12 is coated with an insulating layer 13; the fireproof filler 3 is filled outside the finished cable, the inner shielding layer 12 is a plastic-coated aluminum tape bonding shielding polyethylene outer sleeve, and the insulating layer 13 is formed by extruding and wrapping a modified ethylene propylene diene monomer rubber material. The thickness of the insulating layer 13 is 1.5 mm. The fireproof filler 3 is glass fiber. The outer shielding layer 4 is formed by mixing and weaving tinned steel wires and aramid fibers, and the weaving density is 70%. The fire-proof layer 7 is made of flame-retardant asbestos and has the thickness of 2 mm. The outer sheath layer 8 is made by blending halogen-free low-smoke flame-retardant polyethylene/ethylene-vinyl acetate/ethylene propylene diene monomer rubber and then adding a flame retardant to extrude, and the extruded thickness is 1.5 mm. The ultraviolet-proof layer 9 was coated to a thickness of 0.75 mm.
Example 3
The environment-friendly low-smoke halogen-free flame-retardant armored power cable comprises wire core assemblies 1, fireproof fillers 3, an outer shielding layer 4, an inner sheath layer 5, an armor layer 6, a fireproof layer 7, an outer sheath layer 8 and an ultraviolet-proof layer 9 which are arranged from inside to outside, wherein the wire core assemblies 1 are twisted around a central filling rope 2 to form a cable, each wire core assembly 1 comprises a wire core body 11, the outer surface of each wire core body 11 is coated with an inner shielding layer 12, and the outer surface of each inner shielding layer 12 is coated with an insulating layer 13; the fireproof filler 3 is filled outside the finished cable, the inner shielding layer 12 is a plastic-coated aluminum tape bonding shielding polyethylene outer sleeve, and the insulating layer 13 is formed by extruding and wrapping a modified ethylene propylene diene monomer rubber material. The thickness of the insulating layer 13 is 2 mm. The fireproof filler 3 is the combination of two of fireproof rock wool and glass fiber. The outer shielding layer 4 is formed by mixing and weaving tinned steel wires and aramid fibers, and the weaving density is not lower than 50%. The fire-proof layer 7 is made of flame-retardant asbestos and is 3mm thick. The outer sheath layer 8 is made by blending halogen-free low-smoke flame-retardant polyethylene/ethylene-vinyl acetate/ethylene propylene diene monomer rubber and then adding a flame retardant to extrude, and the extrusion thickness is 2 mm. The uv-protective layer 9 is applied to a thickness of 1 mm.
The cables produced in the above examples, example 1, were the lightest in weight and had inferior performance compared to examples 2 and 3, but were inexpensive to manufacture. Simultaneously the utility model discloses still have the characteristics that the fireproof effect is good.
The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. The utility model provides a fire-retardant armoured power cable of environmental protection low smoke and zero halogen, includes sinle silk subassembly (1), fire prevention filler (3), outer shielding layer (4), inner sheath layer (5), armor (6), flame retardant coating (7), oversheath layer (8) and anti ultraviolet layer (9) that from interior to exterior set up, its characterized in that: the cable comprises a plurality of wire core assemblies (1) which are stranded into a cable around a central filling rope (2), wherein each wire core assembly (1) comprises a wire core body (11), the outer surface of each wire core body (11) is coated with an inner shielding layer (12), and the outer surface of each inner shielding layer (12) is coated with an insulating layer (13); the fireproof filler (3) is filled on the outer side of the cable, the inner shielding layer (12) is a plastic-coated aluminum tape bonding shielding polyethylene outer sleeve, and the insulating layer (13) is formed by extruding and wrapping a modified ethylene propylene diene monomer rubber material.
2. The environment-friendly low-smoke halogen-free flame-retardant armored power cable according to claim 1, characterized in that: the thickness of the insulating layer (13) is 1-2 mm.
3. The environment-friendly low-smoke halogen-free flame-retardant armored power cable according to claim 2, characterized in that: the fireproof filler (3) is one or the combination of two of fireproof rock wool or glass fiber.
4. The environment-friendly low-smoke halogen-free flame-retardant armored power cable according to claim 3, characterized in that: the outer shielding layer (4) is formed by mixing and weaving tinned steel wires and aramid fibers, and the weaving density is not lower than 50%.
5. The environment-friendly low-smoke halogen-free flame-retardant armored power cable according to claim 4, characterized in that: the fireproof layer (7) is made of flame-retardant asbestos and is 1-3 mm thick.
6. The environment-friendly low-smoke halogen-free flame-retardant armored power cable according to claim 5, characterized in that: the outer sheath layer (8) is prepared by blending halogen-free low-smoke flame-retardant polyethylene/ethylene-vinyl acetate/ethylene propylene diene monomer and then adding a flame retardant to extrude, and the extrusion thickness is 1mm-2 mm.
7. The environment-friendly low-smoke halogen-free flame-retardant armored power cable according to claim 6, characterized in that: the coating thickness of the ultraviolet-proof layer (9) is 0.5mm-1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120221864.1U CN214043193U (en) | 2021-01-27 | 2021-01-27 | Environment-friendly low-smoke halogen-free flame-retardant armored power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120221864.1U CN214043193U (en) | 2021-01-27 | 2021-01-27 | Environment-friendly low-smoke halogen-free flame-retardant armored power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214043193U true CN214043193U (en) | 2021-08-24 |
Family
ID=77347367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120221864.1U Active CN214043193U (en) | 2021-01-27 | 2021-01-27 | Environment-friendly low-smoke halogen-free flame-retardant armored power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214043193U (en) |
-
2021
- 2021-01-27 CN CN202120221864.1U patent/CN214043193U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214043193U (en) | Environment-friendly low-smoke halogen-free flame-retardant armored power cable | |
| CN214541663U (en) | High temperature resistant fireproof cable | |
| CN213958659U (en) | Multifunctional reinforced overhead insulated cable | |
| CN212032749U (en) | Environment-friendly extruded insulation low-voltage power cable | |
| CN207895903U (en) | A kind of fire-retardant fireproof cable | |
| CN208767070U (en) | Mineral insulated cable | |
| CN203536091U (en) | Insulating flame-retardant carbon fiber composite cable | |
| CN202940042U (en) | High-flexibility fireproof cable | |
| CN215496116U (en) | Novel corrosion-resistant cable | |
| CN205487440U (en) | Fire -retardant wire and cable of low smoke and zero halogen for motor car | |
| CN212750456U (en) | Copper core crosslinked polyethylene insulation fire-resistant flame-retardant cable | |
| CN216772884U (en) | Special anti-freezing overhead insulated cable for wind power generation | |
| CN218447315U (en) | Environment-friendly medium-voltage power cable | |
| CN212675960U (en) | Waterproof fire-resistant cable | |
| CN218730097U (en) | Steel-cored aluminum stranded conductor overhead insulated cable | |
| CN210443320U (en) | Flame-retardant heat-resistant cable | |
| CN213366170U (en) | Mineral flexible insulating flame-retardant fireproof cable | |
| CN214476580U (en) | Medium-voltage fireproof power cable | |
| CN211654390U (en) | Flame-retardant fireproof weak current cable | |
| CN207752820U (en) | A kind of rated voltage 26/35kV environmental-protection flame-retardants seabed power cable | |
| CN213123897U (en) | Anticorrosive flame retarded cable | |
| CN202268209U (en) | LOSH highly-inflaming-retarding fire-proof environment-friendly cable | |
| CN218782808U (en) | Low-heat-release flame-retardant cable | |
| CN214476602U (en) | Crosslinked polyethylene insulated cable | |
| CN209045211U (en) | A kind of fire-retardant 1 grade of B1 cable interlocking metal tape fire lagging |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |