CN219936723U - High-reliability halogen-free low-smoke flame-retardant power cable - Google Patents
High-reliability halogen-free low-smoke flame-retardant power cable Download PDFInfo
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- CN219936723U CN219936723U CN202321103881.0U CN202321103881U CN219936723U CN 219936723 U CN219936723 U CN 219936723U CN 202321103881 U CN202321103881 U CN 202321103881U CN 219936723 U CN219936723 U CN 219936723U
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- layer
- halogen
- power cable
- retardant
- free
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 51
- 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 title claims abstract description 44
- 239000000779 smoke Substances 0.000 title claims abstract description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229920001276 ammonium polyphosphate Polymers 0.000 claims abstract description 21
- 239000004114 Ammonium polyphosphate Substances 0.000 claims abstract description 20
- 235000019826 ammonium polyphosphate Nutrition 0.000 claims abstract description 20
- 239000010439 graphite Substances 0.000 claims abstract description 20
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 20
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims abstract description 16
- 238000005260 corrosion Methods 0.000 claims abstract description 16
- 238000004804 winding Methods 0.000 claims abstract description 4
- 235000019504 cigarettes Nutrition 0.000 claims abstract 2
- 239000004793 Polystyrene Substances 0.000 claims description 18
- 229920002223 polystyrene Polymers 0.000 claims description 18
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 claims description 16
- 239000003822 epoxy resin Substances 0.000 claims description 12
- 238000009413 insulation Methods 0.000 claims description 12
- 229920000647 polyepoxide Polymers 0.000 claims description 12
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 claims description 6
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 5
- 239000005977 Ethylene Substances 0.000 claims description 5
- 229920002943 EPDM rubber Polymers 0.000 claims description 4
- 230000017105 transposition Effects 0.000 claims 1
- 229910021502 aluminium hydroxide Inorganic materials 0.000 abstract 1
- 231100000614 poison Toxicity 0.000 abstract 1
- 230000007096 poisonous effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 131
- 239000004593 Epoxy Substances 0.000 description 5
- 239000002341 toxic gas Substances 0.000 description 4
- 229910052736 halogen Inorganic materials 0.000 description 3
- 150000002367 halogens Chemical class 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000013638 trimer Substances 0.000 description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 3
- 229920002554 vinyl polymer Polymers 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- WGKLIJDVPACLGG-UHFFFAOYSA-N trizinc diborate hydrate Chemical compound O.[Zn++].[Zn++].[Zn++].[O-]B([O-])[O-].[O-]B([O-])[O-] WGKLIJDVPACLGG-UHFFFAOYSA-N 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000004254 Ammonium phosphate Substances 0.000 description 1
- 229910000148 ammonium phosphate Inorganic materials 0.000 description 1
- 235000019289 ammonium phosphates Nutrition 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000000138 intercalating agent Substances 0.000 description 1
- 238000009830 intercalation Methods 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000005829 trimerization reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Insulated Conductors (AREA)
Abstract
The utility model discloses a high-reliability halogen-free low-smoke flame-retardant power cable, which relates to the technical field of power equipment and comprises a cable core formed by twisting a plurality of insulating wire cores and winding a wrapping tape layer, wherein the cable core is sequentially wrapped with a halogen-free flame-retardant layer, a heat-insulating layer and an anti-corrosion layer from inside to outside, the halogen-free flame-retardant layer is wrapped on the cable core, the heat-insulating layer is wrapped on the halogen-free flame-retardant layer, and the anti-corrosion layer is wrapped on the heat-insulating layer; the halogen-free flame-retardant layer comprises an expandable graphite layer, an ammonium polyphosphate layer and an aluminum hydroxide layer, and the expandable graphite layer is positioned on the top side of the halogen-free flame-retardant layer. Through the setting of expandable graphite layer, aluminium hydroxide layer, ammonium polyphosphate layer etc. can be difficult for burning by oneself when power cable runs into the conflagration, and the cable also can not emit poisonous gas when burning, and the cigarette that the burning produced is also very little simultaneously.
Description
Technical Field
The utility model relates to the technical field of power equipment, in particular to a high-reliability halogen-free low-smoke flame-retardant power cable.
Background
The basic structure of the power cable consists of four parts, namely a wire core (conductor), an insulating layer, a shielding layer and a protective layer, wherein the cable is an electric energy or signal transmission device, and usually consists of a plurality of wires or groups of wires, and the cable comprises a power cable, a control cable, a compensation cable, a shielding cable, a high-temperature cable, a computer cable, a signal cable, a coaxial cable, a fire-resistant cable, a marine cable, a mining cable, an aluminum alloy cable and the like. They are composed of single or multi-strand wires and insulating layers for connecting circuits, appliances, etc.
In the prior art, the existing power cable is mainly divided into a halogen-containing flame-retardant power cable and a halogen-free low-smoke flame-retardant power cable, wherein the halogen-containing flame-retardant power cable has good flame-retardant property, but a large amount of dense smoke and toxic gas can be released when the cable burns, the cable has better flame-retardant property, no toxic gas is released when the cable burns, the smoke release amount of the halogen-free low-smoke flame-retardant power cable is small, the mechanical property is poor, the service life is short, and therefore, the high-reliability halogen-free low-smoke flame-retardant power cable is required to meet the demands of people.
Disclosure of Invention
The utility model aims to provide a high-reliability halogen-free low-smoke flame-retardant power cable, which aims to solve the problems of small smoke emission, poor mechanical performance and short service life of the halogen-free low-smoke flame-retardant power cable in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the high-reliability halogen-free low-smoke flame-retardant power cable comprises a cable core formed by twisting a plurality of insulating cable cores and winding a wrapping tape layer, wherein the cable core is sequentially wrapped with a halogen-free flame-retardant layer, a heat insulation layer and an anti-corrosion layer from inside to outside, the halogen-free flame-retardant layer is wrapped on the cable core, the heat insulation layer is wrapped on the halogen-free flame-retardant layer, and the anti-corrosion layer is wrapped on the heat insulation layer; the halogen-free flame-retardant layer comprises an expandable graphite layer, an ammonium polyphosphate layer and an aluminum hydroxide layer, and the expandable graphite layer is positioned on the top side of the halogen-free flame-retardant layer.
Preferably, the ammonium polyphosphate layer is fixedly arranged on the bottom side of the expandable graphite layer, and the thickness of the ammonium polyphosphate layer is 0.5-10mm.
Preferably, the aluminum hydroxide layer is fixedly arranged on the bottom side of the ammonium polyphosphate layer, and the thickness of the aluminum hydroxide layer is 0.5-10mm.
Preferably, the heat insulation layer comprises a brominated polystyrene layer, a hydrated zinc borate layer and a semiconductive shielding layer, wherein the brominated polystyrene layer is positioned on the top side of the heat insulation layer, and the thickness of the brominated polystyrene layer is 0.3-8mm.
Preferably, the hydrated zinc borate layer is fixedly arranged on the bottom side of the brominated polystyrene layer, the thickness of the hydrated zinc borate layer is 0.3-8mm, the semiconductive shielding layer is fixedly arranged on the bottom side of the hydrated zinc borate layer, and the thickness of the semiconductive shielding layer is 0.3-8mm.
Preferably, the anti-corrosion layer comprises an epoxy resin layer and a trimeric ethylene layer, the epoxy resin layer is arranged on the top side of the anti-corrosion layer, and the thickness of the epoxy resin layer is 1-15mm.
Preferably, the ethylene-propylene-diene monomer layer is fixedly arranged on the bottom side of the epoxy resin layer, and the thickness of the ethylene-propylene-diene monomer layer is 1-15mm.
The beneficial effects of the utility model are as follows:
1. the halogen-free flame-retardant layer of the power cable is provided with the expandable graphite layer, the aluminum hydroxide layer and the ammonium polyphosphate layer, so that the power cable is not easy to burn automatically when encountering fire, the cable can not emit toxic gas when burning, and meanwhile, smoke generated by burning is very small. And through the setting of semiconductive shield layer for the mechanical properties of cable has obtained the promotion, thereby has reduced the fault rate of cable, has prolonged the life of cable, mutually support between brominated polystyrene layer and the zinc borate hydrate layer, makes the cable receive the heat can not pass to inside under the high temperature, has avoided the cable to receive the too high damage that leads to.
2. Through the setting of epoxy layer and trimerization ethylene layer, can avoid the cable to receive the corruption that the wind blows rain drenches when daily use, promote the anticorrosion nature of cable to can prolong the life of cable.
Drawings
Fig. 1 is a schematic structural diagram of a high-reliability halogen-free low-smoke flame-retardant power cable according to the embodiment;
fig. 2 is a schematic structural diagram of a halogen-free flame retardant layer of the high-reliability halogen-free low-smoke flame retardant power cable of the embodiment;
fig. 3 is a schematic structural view of a heat insulating layer of the high-reliability halogen-free low-smoke flame-retardant power cable of the embodiment;
fig. 4 is a schematic structural view of an anticorrosive layer of the high-reliability halogen-free low-smoke flame-retardant power cable according to the embodiment.
In the figure: 100. a power cable; 200. a halogen-free flame retardant layer; 201. an expandable graphite layer; 202. an ammonium polyphosphate layer; 203. an aluminum hydroxide layer; 300. a thermal insulation layer; 301. a brominated polystyrene layer; 302. a hydrated zinc borate layer; 303. a semiconductive shield layer; 400. an anti-corrosion layer; 401. an epoxy resin layer; 402. a layer of trimeric ethylene.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1-4, a high-reliability halogen-free low-smoke flame-retardant power cable comprises a cable core 100 formed by twisting a plurality of insulating cable cores and winding a wrapping tape layer, wherein the cable core 100 is sequentially wrapped with a halogen-free flame-retardant layer 200, an insulating layer 300 and an anti-corrosion layer 400 from inside to outside, the halogen-free flame-retardant layer 200 is wrapped on the cable core 100, the insulating layer 300 is wrapped on the halogen-free flame-retardant layer 200, and the anti-corrosion layer 400 is wrapped on the insulating layer 300;
the halogen-free flame retardant layer 200 comprises an expandable graphite layer 201, an ammonium polyphosphate layer 202, an aluminum hydroxide layer 203, the expandable graphite layer 201 being located on the top side of the halogen-free flame retardant layer 200.
The expandable graphite layer 201 is made of expandable graphite, which is an important inorganic nonmetallic material, which is a graphite intercalation compound obtained by treating natural crystalline flake graphite with an oxidizing agent and an intercalating agent.
The ammonium polyphosphate layer 202 is made of ammonium polyphosphate, also known as ammonium polyphosphate or condensed ammonium phosphate (APP for short).
The aluminum hydroxide layer 203 is made of an aluminum hydroxide material.
The halogen-free flame-retardant layer of the power cable is provided with the expandable graphite layer, the aluminum hydroxide layer and the ammonium polyphosphate layer, so that the power cable is not easy to burn automatically when encountering fire, the cable can not emit toxic gas when burning, and meanwhile, smoke generated by burning is very small.
Specifically, the expandable graphite layer 201 has a thickness of 0.5 to 10mm. Typical values are 105mm.
In a preferred embodiment, as shown in FIG. 2, the ammonium polyphosphate layer 202 is fixedly mounted on the bottom side of the expandable graphite layer 201, and the thickness of the ammonium polyphosphate layer 202 is 0.5-10mm.
In a preferred embodiment, as shown in FIG. 2, an aluminum hydroxide layer 203 is fixedly mounted on the bottom side of the ammonium polyphosphate layer 202, and the thickness of the aluminum hydroxide layer 203 is 0.5-10mm.
In a preferred embodiment, as shown in fig. 3, the heat insulating layer 300 comprises a brominated polystyrene layer 301, a hydrated zinc borate layer 302, and a semiconductive shielding layer 303, wherein the brominated polystyrene layer 301 is positioned on the top side of the heat insulating layer 300, and the thickness of the brominated polystyrene layer 301 is 0.3-8mm.
The brominated polystyrene layer 301 is made of brominated polystyrene, can form a layer of compact foam carbon layer on the surface, has the functions of heat insulation, oxygen insulation and smoke suppression, can prevent molten drops, and has good flame retardance.
The hydrated zinc borate layer 302 is made of hydrated zinc borate, which is an environmentally friendly non-halogen flame retardant.
The semiconductive shield 303 is formed of a semiconductive material having a low resistivity and a relatively thin thickness.
In a preferred embodiment, as shown in FIG. 3, a hydrated zinc borate layer 302 is fixedly mounted on the bottom side of a brominated polystyrene layer 301, the thickness of the hydrated zinc borate layer 302 is 0.3-8mm, a semiconductive shield 303 is fixedly mounted on the bottom side of the hydrated zinc borate layer 302, and the thickness of the semiconductive shield 303 is 0.3-8mm.
Through the setting of semiconductive shield for the mechanical properties of cable has obtained the promotion, thereby has reduced the fault rate of cable, has prolonged the life of cable, mutually support between brominated polystyrene layer and the zinc borate hydrate layer, makes the cable receive the heat can not pass to inside under the high temperature, has avoided the cable to receive the too high damage that leads to.
In a preferred embodiment, as shown in fig. 4, the anti-corrosion layer 400 includes an epoxy layer 401 and a vinyl trimer layer 402, the epoxy layer 401 is located on the top side of the anti-corrosion layer 400, and the thickness of the epoxy layer 401 is 1-15mm.
The epoxy resin layer is made of epoxy resin, and the ethylene-propylene layer is made of ethylene-propylene-diene.
In a preferred embodiment, as shown in FIG. 4, a layer of vinyl trimer 402 is fixedly mounted on the underside of the epoxy layer 401, the vinyl trimer layer 402 having a thickness of 1-15mm. The corrosion resistance of the cable is improved.
The heat insulation effect of the power cable 100 is guaranteed by utilizing the interaction between the brominated polystyrene layer 301, the hydrated zinc borate layer 302 and the semiconductive shielding layer 303, so that the heat received by the power cable 100 in a high-temperature environment is not transmitted to the inside, the damage of the power cable 100 caused by overhigh temperature is avoided, when the power cable 100 encounters a fire disaster in the use process, the combustion of the power cable 100 can be timely prevented, the burning loss of the power cable 100 is avoided, the power cable 100 can be prevented from being corroded in the use process by the interaction between the epoxy resin layer 401 and the trimeric ethylene layer 402, the mechanical property and the electrical stability of the power cable 100 are improved, the failure rate is reduced, and the service life of the power cable 100 is prolonged.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (7)
1. The utility model provides a high reliable type does not have steamed low fire-retardant power cable of cigarette, includes cable core (100) that many insulation core transposition winding band layers formed, its characterized in that: the cable core (100) is sequentially wrapped with a halogen-free flame-retardant layer (200), a heat-insulating layer (300) and an anti-corrosion layer (400) from inside to outside, wherein the halogen-free flame-retardant layer (200) is wrapped on the cable core (100), the heat-insulating layer (300) is wrapped on the halogen-free flame-retardant layer (200), and the anti-corrosion layer (400) is wrapped on the heat-insulating layer (300);
the halogen-free flame retardant layer (200) comprises an expandable graphite layer (201), an ammonium polyphosphate layer (202) and an aluminum hydroxide layer (203), wherein the expandable graphite layer (201) is positioned on the top side of the halogen-free flame retardant layer (200).
2. A high reliability halogen-free low smoke flame retardant power cable according to claim 1, wherein: the ammonium polyphosphate layer (202) is fixedly arranged on the bottom side of the expandable graphite layer (201), and the thickness of the ammonium polyphosphate layer (202) is 0.5-10mm.
3. A high reliability halogen-free low smoke flame retardant power cable according to claim 1, wherein: the aluminum hydroxide layer (203) is fixedly arranged on the bottom side of the ammonium polyphosphate layer (202), and the thickness of the aluminum hydroxide layer (203) is 0.5-10mm.
4. A high reliability halogen-free low smoke flame retardant power cable according to claim 1, wherein: the heat insulation layer (300) comprises a brominated polystyrene layer (301), a hydrated zinc borate layer (302) and a semiconductive shielding layer (303), wherein the brominated polystyrene layer (301) is positioned on the top side of the heat insulation layer (300), and the thickness of the brominated polystyrene layer (301) is 0.3-8mm.
5. The high reliability halogen-free low smoke flame retardant power cable according to claim 4, wherein: the hydrated zinc borate layer (302) is fixedly arranged on the bottom side of the brominated polystyrene layer (301), the thickness of the hydrated zinc borate layer (302) is 0.3-8mm, the semiconductive shielding layer (303) is fixedly arranged on the bottom side of the hydrated zinc borate layer (302), and the thickness of the semiconductive shielding layer (303) is 0.3-8mm.
6. A high reliability halogen-free low smoke flame retardant power cable according to claim 1, wherein: the anti-corrosion layer (400) comprises an epoxy resin layer (401) and a trimeric ethylene layer (402), wherein the epoxy resin layer (401) is positioned on the top side of the anti-corrosion layer (400), and the thickness of the epoxy resin layer (401) is 1-15mm.
7. The high reliability halogen-free low smoke flame retardant power cable according to claim 6, wherein: the ethylene-propylene-diene monomer layer (402) is fixedly arranged on the bottom side of the epoxy resin layer (401), and the thickness of the ethylene-propylene-diene monomer layer (402) is 1-15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321103881.0U CN219936723U (en) | 2023-05-10 | 2023-05-10 | High-reliability halogen-free low-smoke flame-retardant power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321103881.0U CN219936723U (en) | 2023-05-10 | 2023-05-10 | High-reliability halogen-free low-smoke flame-retardant power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219936723U true CN219936723U (en) | 2023-10-31 |
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ID=88490384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321103881.0U Active CN219936723U (en) | 2023-05-10 | 2023-05-10 | High-reliability halogen-free low-smoke flame-retardant power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219936723U (en) |
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2023
- 2023-05-10 CN CN202321103881.0U patent/CN219936723U/en active Active
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