CN211858244U - Low-smoke, low-toxicity and mechanical impact resistant power cable of 3KV and below - Google Patents
Low-smoke, low-toxicity and mechanical impact resistant power cable of 3KV and below Download PDFInfo
- Publication number
- CN211858244U CN211858244U CN202020618406.7U CN202020618406U CN211858244U CN 211858244 U CN211858244 U CN 211858244U CN 202020618406 U CN202020618406 U CN 202020618406U CN 211858244 U CN211858244 U CN 211858244U
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- low
- layer
- cable
- smoke
- cable core
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- 239000000779 smoke Substances 0.000 title claims abstract description 20
- 231100000053 low toxicity Toxicity 0.000 title claims abstract description 15
- 239000010410 layer Substances 0.000 claims abstract description 63
- 238000002955 isolation Methods 0.000 claims abstract description 16
- 239000003063 flame retardant Substances 0.000 claims abstract description 14
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 12
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000011248 coating agent Substances 0.000 claims abstract description 6
- 238000000576 coating method Methods 0.000 claims abstract description 6
- 239000011241 protective layer Substances 0.000 claims abstract description 6
- 230000009970 fire resistant effect Effects 0.000 claims description 9
- 230000035939 shock Effects 0.000 claims description 8
- CHJAYYWUZLWNSQ-UHFFFAOYSA-N 1-chloro-1,2,2-trifluoroethene;ethene Chemical group C=C.FC(F)=C(F)Cl CHJAYYWUZLWNSQ-UHFFFAOYSA-N 0.000 claims description 6
- 229920001780 ECTFE Polymers 0.000 claims description 6
- 239000010445 mica Substances 0.000 claims description 2
- 229910052618 mica group Inorganic materials 0.000 claims description 2
- 230000006378 damage Effects 0.000 abstract description 5
- 229910052736 halogen Inorganic materials 0.000 abstract description 4
- 150000002367 halogens Chemical class 0.000 abstract description 3
- 239000002245 particle Substances 0.000 abstract description 3
- 230000009972 noncorrosive effect Effects 0.000 abstract description 2
- 230000002411 adverse Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 8
- 239000004020 conductor Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 235000019504 cigarettes Nutrition 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 229910010272 inorganic material Inorganic materials 0.000 description 3
- 239000011147 inorganic material Substances 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000000395 magnesium oxide Substances 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 239000003053 toxin Substances 0.000 description 3
- 231100000765 toxin Toxicity 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- RJDOZRNNYVAULJ-UHFFFAOYSA-L [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] RJDOZRNNYVAULJ-UHFFFAOYSA-L 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- 241000699670 Mus sp. Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
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Abstract
The utility model discloses a low-smoke, low-toxicity and mechanical impact resistant power cable of 3KV and below, which relates to the field of cables, and in order to achieve the purpose, the utility model adopts the technical scheme that the cable comprises a cable core, a band layer, an inner protective layer, an armor layer and an outer protective layer; the cable core includes five, and it has the isolation layer to fill between the cable core, the cable core includes aluminum alloy sinle silk, flame retardant coating and insulating layer from inside to outside in proper order. Possess high fire-retardant, no drippage, advantage such as noncorrosive, solved ordinary low smoke and zero halogen cable in the market, the burning particle is many, corrosivity is relatively poor, the not high problem of protectiveness, when meetting the destruction of adverse circumstances or external factor, reaches the purpose of safety ring protects.
Description
Technical Field
The utility model relates to a 3KV reaches following low cigarette, low toxicity, anti mechanical shock power cable mainly relates to the cable field.
Background
At present, the cable market has higher and higher requirements on the flame retardant performance of cables, particularly important projects such as subways and public places, and common low-smoke halogen-free cables only consider the characteristics of low smoke, halogen-free, flame retardance and the like of the cables, and lack attention on the combustion performance, combustion drops/particles and corrosion performance.
Therefore, the aluminum alloy low-smoke halogen-free low-toxicity cable is provided, the flame retardant property of the common low-smoke halogen-free cable is enhanced, the characteristics of no combustion dripping, no corrosion and electric conductivity are achieved, and a safer and more environment-friendly product is provided for the market.
SUMMERY OF THE UTILITY MODEL
The not enough of prior art more than, the utility model provides a 3KV and following low cigarette, low toxicity, anti mechanical shock power cable possesses high fire-retardant, no drippage, advantage such as noncorrosive, has solved ordinary low cigarette halogen-free cable in the market, and the burning particle is many, corrosivity is relatively poor, and the not high problem of protectiveness reaches safe environmental protection's purpose when meetting the destruction of abominable environment or external factor.
In order to achieve the above purpose, the technical scheme of the utility model is that: the cable comprises a cable core, a belting layer, an inner protection layer, an armor layer and an outer protection layer; the cable core includes five, and it has the isolation layer to fill between the cable core, the cable core includes aluminum alloy sinle silk, flame retardant coating and insulating layer from inside to outside in proper order.
Preferably, the inner sheath layer is coated outside the aluminum alloy cable core.
Preferably, the insulating layer is extruded outside the refractory layer.
Preferably, the fire-resistant layer is formed by covering a plurality of mica tape lapping covers.
Preferably, the capping rate of the refractory layer is not less than 25% and the thickness is not less than 0.2 mm.
Preferably, the insulating layer is made of ethylene chlorotrifluoroethylene copolymer material and has a thickness of not less than 2 mm.
Preferably, the isolation layer is a mineral magnesium oxide mixed inorganic substance.
Preferably, the thickness of the cable core is not less than 4 mm.
The technical principle and the beneficial effects of the utility model are as follows:
the aluminum alloy low-smoke halogen-free low-toxicity cable reduces the cable cost through the aluminum alloy conductor in the using process; the temperature resistant layer is arranged outside the conductor, the temperature resistant layer adopts a synthetic mica tape, the damage of isolating high temperature to the cable conductor can be reduced, the fire resistance of the cable can be kept, the insulating layer adopts an ethylene chlorotrifluoroethylene copolymer material, the ethylene chlorotrifluoroethylene copolymer material has excellent chemical stability and incombustibility and good electrical property and mechanical property, the flame retardant grade of the cable can be improved, the insulating property can be kept, the corrosion of external corrosive substances to the cable can be effectively and directly prevented, the isolating layer adopts a magnesium oxide mixture which is characterized by condensing into a crystal inorganic substance when meeting high temperature, the direct damage of flame to the cable can be effectively prevented, the armor layer adopts double-layer steel tapes to provide mechanical property for the cable, simultaneously, insects such as mice and the like can be prevented from being bitten, the cable is used in places such as direct burial places and tunnels, the protective layers all adopt low-smoke halogen-free materials with oxygen, the cable is made of temperature-resistant and inorganic materials, and achieves the performances of flame retardance, no drop and no toxin.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments will be briefly described below, it is obvious that the drawings in the following description are only two of the embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
The fireproof coating comprises an aluminum alloy 1, a fireproof layer 2, an insulating layer 3, an isolating layer 4, a belting layer 5, an inner protection layer 6, an armor layer 7 and an outer protection layer 8.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are merely preferred embodiments of the present invention, rather than 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.
Examples
As shown in fig. 1, the embodiment of the present invention includes a cable core, a belting layer 5, an inner sheath 6, an armor layer 7, and an outer sheath 8;
the cable core includes five, and it has isolation layer 4 to fill between the cable core, the cable core includes 1 sinle silk of aluminum alloy, flame retardant coating 2 and insulating layer 3 from inside to outside in proper order.
The outside of the aluminum alloy 1 wire core is fixedly wrapped with the fire-resistant layer 2, the fire-resistant layer 2 is made of synthetic mica tapes in a wrapping mode, the expansion coefficient is small, the dielectric strength is high, the resistivity is high, the dielectric constant is high, the heat-resistant grade is high, the A-grade fire-resistant level (950 plus one grade 1000 ℃) can be achieved, the covering rate of the fire-resistant layer 2 is not less than 25%, and the thickness is not less than 0.2 mm.
The insulating layer 3 is fixedly extruded outside the fire-resistant layer 2, and the ethylene chlorotrifluoroethylene copolymer material of the insulating layer 3 has excellent chemical stability, incombustibility, good electrical property and mechanical property, improves the fire-retardant grade of the cable, and simultaneously maintains the insulating property.
The isolation layers 4 are extruded and coated outside the five cable cores, the isolation layers 4 are made of mineral magnesium oxide mixed inorganic matters, the isolation layers 4 are characterized in that the isolation layers are condensed into crystal inorganic matters when meeting high temperature, direct damage of flame to the cable can be effectively prevented, the isolation layers 4 are fixedly coated with wrapping layers 5 outside, the isolation layers are made of low-smoke zero-halogen and glass fiber tape composite materials, the isolation layers are incombustible, and the thickness of the isolation layers is not less than 4 mm.
The outside crowded package of band layer 5 has interior sheath 6, the outside cladding of interior sheath 6 has armor 7, adopts double-deck steel band to wind the package and makes, can improve cable mechanical properties, the outside fixed crowded package of armor 7 has outer jacket 8, and outer jacket 8 and interior sheath 6 all adopt the low smoke and zero halogen material that the oxygen index is greater than 38, and its thickness is greater than 2 millimeters. The cable is made of temperature-resistant and inorganic materials, and achieves the performances of flame retardance, no drop and no toxin.
This aluminum alloy 1 low smoke and zero halogen low toxicity cable, the inside cladding multilayer inorganic synthetic substance of flame retardant coating 2, conductor generates heat to cable insulation 3's influence during can reducing cable conductor operation, and cable insulation 3 adopts ethylene chlorotrifluoroethylene copolymer material, improve cable insulation temperature resistance greatly, mineral insulation isolation layer 4 promotes the fire-retardant grade of cable simultaneously, reach fire-retardant B1 level, inside temperature resistant material and the inorganic material of all adopting of cable simultaneously, make it not produce the toxin and reach toxicity T0 level, isolation layer 4 congeals into the crystal in high temperature, reduce the drippage in the burning, make the cable drippage satisfy d1 level, to sum up provide the higher safer environmental protection's of a fire-retardant grade cable product for the user.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A low-smoke, low-toxicity and mechanical impact resistant power cable of 3KV and below is characterized by comprising a cable core, a belting layer, an inner protective layer, an armor layer and an outer protective layer;
the cable core includes five, and it has the isolation layer to fill between the cable core, the cable core includes aluminum alloy sinle silk, flame retardant coating and insulating layer from inside to outside in proper order.
2. A low smoke, low toxicity, mechanical shock resistance power cable for 3KV and below according to claim 1, wherein: the inner protective layer is coated outside the aluminum alloy cable core.
3. A low smoke, low toxicity, mechanical shock resistance power cable for 3KV and below according to claim 2, wherein: the insulating layer is extruded outside the fire-resistant layer.
4. A low smoke, low toxicity, mechanical shock resistance power cable for 3KV and below according to claim 1, wherein: the fire-resistant layer is formed by covering a plurality of layers of mica tape lapping covers.
5. A low smoke, low toxicity, mechanical shock resistance power cable for 3KV and below according to claim 1, wherein: the covering rate of the fire-resistant layer is not less than 25%, and the thickness is not less than 0.2 mm.
6. A low smoke, low toxicity, mechanical shock resistance power cable for 3KV and below according to claim 1, wherein: the insulating layer is made of ethylene chlorotrifluoroethylene copolymer and has a thickness not less than 2 mm.
7. A low smoke, low toxicity, mechanical shock resistance power cable for 3KV and below according to claim 1, wherein: the thickness of the isolation layer is not less than 4 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020618406.7U CN211858244U (en) | 2020-04-22 | 2020-04-22 | Low-smoke, low-toxicity and mechanical impact resistant power cable of 3KV and below |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020618406.7U CN211858244U (en) | 2020-04-22 | 2020-04-22 | Low-smoke, low-toxicity and mechanical impact resistant power cable of 3KV and below |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211858244U true CN211858244U (en) | 2020-11-03 |
Family
ID=73177114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020618406.7U Active CN211858244U (en) | 2020-04-22 | 2020-04-22 | Low-smoke, low-toxicity and mechanical impact resistant power cable of 3KV and below |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211858244U (en) |
-
2020
- 2020-04-22 CN CN202020618406.7U patent/CN211858244U/en active Active
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