CN112700914B - Waterproof and fireproof photovoltaic cable and compression-resistant method thereof - Google Patents
Waterproof and fireproof photovoltaic cable and compression-resistant method thereof Download PDFInfo
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- CN112700914B CN112700914B CN202011514861.3A CN202011514861A CN112700914B CN 112700914 B CN112700914 B CN 112700914B CN 202011514861 A CN202011514861 A CN 202011514861A CN 112700914 B CN112700914 B CN 112700914B
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- -1 polyethylene Polymers 0.000 claims abstract description 13
- 239000004698 Polyethylene Substances 0.000 claims abstract description 12
- 229920000573 polyethylene Polymers 0.000 claims abstract description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical class [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims description 23
- 239000010935 stainless steel Substances 0.000 claims description 23
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 22
- 229920000742 Cotton Polymers 0.000 claims description 16
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 claims description 14
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 14
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 14
- 229910052802 copper Inorganic materials 0.000 claims description 11
- 239000010949 copper Substances 0.000 claims description 11
- 239000003063 flame retardant Substances 0.000 claims description 10
- 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 description 9
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Images
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
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
-
- 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
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1875—Multi-layer sheaths
-
- 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
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/20—Metal tubes, e.g. lead sheaths
- H01B7/207—Metal tubes, e.g. lead sheaths composed of iron or steel
-
- 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
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
-
- 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
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
- H01B7/2825—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable using a water impermeable sheath
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- Photovoltaic Devices (AREA)
- Cable Accessories (AREA)
Abstract
The invention relates to the technical field of photovoltaic cables and discloses a waterproof and fireproof photovoltaic cable and a compression-resistant method thereof. This waterproof fireproof photovoltaic cable, when the mouse bites the surface of photovoltaic cable, the spring net lasso in the outside is made by iron and forms, prevent that the mouse from biting, when receiving torrential rain bad weather, when water sees through nonrust steel ring and enters into inside, the tarpaulin of nonrust steel ring inner wall possesses the water barrier, can the separation fall water, the moisture that does not have the separation inwards can be absorbed partly by activated carbon powder, it is outer by the polyethylene waterproof layer separation again, can't enter into inside and exert an influence to the wire, form the effect of dampproofing, the life of photovoltaic cable has been prolonged.
Description
Technical Field
The invention relates to the technical field of photovoltaic cables, in particular to a waterproof and fireproof photovoltaic cable and a compression-resistant method thereof.
Background
With the explosion of communication business, the communication network industry is in a steady growth trend, when the current intelligent equipment transmits multimedia data such as audio and video, the data is transmitted through a photovoltaic cable, the photovoltaic cable is a communication cable and consists of two or more glass or plastic optical fiber cores, the optical fiber cores are positioned in a protective coating and covered by a plastic PVC outer sleeve, the bandwidth of optical fiber transmission greatly exceeds that of a copper cable, and the maximum connection distance supported by the photovoltaic cable reaches more than two kilometers, so the photovoltaic cable is a necessary choice for building a large-scale network, has the advantages of good electromagnetic interference resistance, strong confidentiality, high speed, large transmission capacity and the like, is a necessary basic product in the future information-based society, and is widely applied to the fields of electric power, buildings, communication and the like.
Most of the existing photovoltaic cables are buried underground or in ventilation layers of passageways of residential buildings, a lot of mice are usually exposed in the dim environment, the mice easily bite the photovoltaic cables, the cables can be broken in the ruins during earthquakes, data transmission in peripheral areas is broken, maintenance personnel need to find out the damage in the messy photovoltaic cables for maintenance in the maintenance process, the maintenance difficulty is increased, meanwhile, in the dim environment and rainy days, a large amount of moisture is contained in soil and air of the ventilation layers, the moisture can soak wires in the photovoltaic cables, and the whole line can be scrapped for a long time.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the waterproof and fireproof photovoltaic cable and the compression-resistant method thereof, which have the advantages of mouse bite prevention, high compression resistance and moisture prevention, and solve the problems that the conventional photovoltaic cable is easily damaged by mice and earthquakes and the internal lead is easily scrapped due to the fact that the conventional photovoltaic cable is soaked in a large amount of moisture in the air.
The invention provides the following technical scheme: the utility model provides a waterproof fireproof photovoltaic cable, includes thick copper wire, a plurality of thin copper wires of outer wall fixedly connected with of thick copper wire, the outside of thin copper wire is provided with the tie layer, the outer wall on tie layer is provided with the insulating layer, the outer wall of insulating layer is provided with the shielding layer, the outer wall of shielding layer is provided with the polyethylene waterproof layer.
Preferably, the outer wall of the polyethylene waterproof layer is provided with a halogen-free low-smoke polyolefin material layer, and the outer wall of the halogen-free low-smoke polyolefin material layer is fixedly provided with a fixed wall.
Preferably, a convex groove is formed in the side face of the fixed wall, activated carbon powder is arranged inside the fixed wall, a flame retardant layer is arranged on the outer wall of the fixed wall, and a supporting layer is arranged on the outer wall of the flame retardant layer.
Preferably, the outer wall of the supporting layer is provided with an EVA (ethylene vinyl acetate) compression-resistant layer and a compression-resistant expansion device, and the other sides of the EVA compression-resistant layer and the compression-resistant expansion device are fixedly connected with waterproof cloth.
Preferably, the outer wall of the waterproof cloth is provided with a stainless steel ferrule, the outer wall of the stainless steel ferrule is provided with water absorption cotton, and the outer wall of the water absorption cotton is provided with a spring net ferrule
Preferably, the compression-resistant telescopic device comprises a telescopic rod and a telescopic groove pipe, the bottom of the telescopic groove pipe is fixedly connected with a supporting layer, the inside of the telescopic groove pipe is connected with the telescopic rod in a sliding mode, and the top of the telescopic rod is fixedly connected with waterproof cloth.
A compression-resistant method of a waterproof fireproof photovoltaic cable is characterized in that a stainless steel ferrule on the inner wall of absorbent cotton is smashed by huge pressure, the inward-deformed stainless steel ferrule drives a telescopic rod of a compression-resistant telescopic device fixedly connected with the inner wall of the stainless steel ferrule to stretch and slowly compress a telescopic groove pipe fixedly connected with the outer wall of a supporting layer, and simultaneously an EVA compression-resistant layer on the side face together resists compression and relieves pressure.
Compared with the prior art, the invention has the following beneficial effects:
1. this waterproof fireproof photovoltaic cable, the spring net lasso circle that sets up through the cotton outer wall that absorbs water forms the protection to the photovoltaic cable, when the mouse wants to bite, the mouse can't bite the surface of photovoltaic cable by the hardness and the little crack of spring net lasso circle, simultaneously when the earthquake, a large amount of ruins pile up on the photovoltaic cable, the stainless steel lasso circle of the cotton inner wall that absorbs water is pounded flatly, inwards pounded flatly the stainless steel band and move the telescopic link of the resistance to compression telescoping device of inner wall fixed connection and to carry out flexible pressure relief to the flexible inslot of supporting layer outer wall fixed connection, the EVA resistance to compression layer self by flexible resistance to compression device has the compliance good, take precautions against earthquakes, antiskid, compressive resistance is strong, can together carry out the pressure relief along with the resistance to compression telescoping device, the effectual problem that current photovoltaic cable receives mouse and earthquake's influence easily to produce the damage of having solved, compressive resistance has improved.
2. This waterproof fireproof photovoltaic cable, in torrential rain and humid environment, contain a large amount of moisture in the air and soak this photovoltaic cable, moisture absorbs partly moisture through cotton that absorbs water, continue inwards soak and meet stainless steel ferrule and carried out the separation, soak for a long time, moisture still can see through inside stainless steel ferrule gets into, the moisture of entering is fallen by the tarpaulin separation of stainless steel ferrule inner wall, the tarpaulin has very strong waterproof nature, moisture that does not receive the separation can be absorbed partly through activated carbon powder, again by polyethylene waterproof layer separation outside, can't exert an influence to the wire, effectual solved current photovoltaic cable receive soaking of humid environment and rainwater easily and lead to the condemned problem of whole circuit, waterproof nature is improved, service life is prolonged.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the left side of FIG. 1 according to the present invention;
fig. 3 is a schematic structural view of the compression-resistant expansion device of fig. 1 according to the present invention.
In the figure: 1. a thick copper wire; 2. fine copper wires; 3. a wiring layer; 4. an insulating layer; 5. a shielding layer; 6. a polyethylene waterproof layer; 7. a halogen-free low-smoke polyolefin material layer; 8. a convex groove; 9. a fixed wall; 10. activated carbon powder; 11. a support layer; 12. a spring mesh ferrule; 13. absorbent cotton; 14. a stainless steel ferrule; 15. waterproof cloth; 16. an EVA pressure-resistant layer; 17. a compression-resistant telescopic device; 18. a flame retardant layer; 1701. a telescopic rod; 1702. a telescopic slot pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, a waterproof and fireproof photovoltaic cable comprises a thick copper wire 1, a plurality of thin copper wires 2 are fixedly connected to the outer wall of the thick copper wire 1, a circle of thin copper wires 2 are distributed outside the thick copper wire 1 to accelerate the transmission speed of data inside the photovoltaic cable, a wiring layer 3 is arranged outside the thin copper wires 2, the wiring layer 3 binds the thick copper wires 1 and the thin copper wires 2 inside, so that the connection inside is more compact, an insulating layer 4 is arranged on the outer wall of the wiring layer 3, the insulating layer 4 can isolate a resistor inside when the thick copper wires 1 and the thin copper wires 2 inside leak electricity, so as to avoid the situation that maintenance personnel do not pay attention to electric shock when maintaining, a shielding layer 5 is arranged on the outer wall of the insulating layer 4, the shielding layer 5 can shield outside messy signals, so as to prevent the influence on the data transmission inside, a polyethylene waterproof layer 6 is arranged on the outer wall of the shielding layer 5, the polyethylene waterproof layer 6 is formed by compounding polypropylene fibers and polyethylene serving as main raw materials with an anti-aging agent by adopting a high-tech, new technology and new process, and has excellent waterproof performance.
Wherein, polyethylene waterproof layer 6's outer wall is provided with halogen-free low smoke polyolefin material layer 7, and there is not halogen acid gas to emit when halogen-free low smoke polyolefin material layer 7 burns, and toxicity and corrosive gas release amount are few, and flame retardant efficiency is good, and there is fixed wall 9 no halogen-free low smoke polyolefin material layer 7's outer wall fixed mounting, and fixed wall 9 forms the fixed stay to the protective layer of inner wall, prevents the pressurized deformation.
The convex groove 8 is formed in the side face of the fixed wall 9, activated carbon powder 10 is arranged inside the fixed wall 9, the activated carbon powder 10 can absorb partial moisture and absorb the moisture, the flame-retardant layer 18 is arranged on the outer wall of the fixed wall 9, the flame-retardant layer 18 can prevent an external line from catching fire to enable the photovoltaic cable to burn inside, and the supporting layer 11 is arranged on the outer wall of the flame-retardant layer 18.
Wherein, the outer wall of supporting layer 11 all is provided with EVA resistance to compression layer 16 and resistance to compression telescoping device 17, and EVA resistance to compression layer 16 self has the compliance good, takes precautions against earthquakes, antiskid, compressive resistance are strong, can bear very heavy power, and EVA resistance to compression layer 16 and resistance to compression telescoping device 17's opposite side fixed connection tarpaulin 15, tarpaulin 15's water-proof effects is fabulous, can form the separation to water.
Wherein, the outer wall of tarpaulin 15 is provided with stainless steel ferrule 14, and the outer wall of stainless steel ferrule 14 is provided with cotton 13 that absorbs water, and cotton 13 that absorbs water can absorb partial moisture, plays certain benefit to the dampproofing, and the outer wall of cotton 13 that absorbs water is provided with spring net lasso 12, and spring net lasso 12 can prevent that the mouse from stinging this photovoltaic cable.
Wherein, resistance to compression telescoping device 17 is including telescopic link 1701 and flexible slotted tube 1702, and the bottom fixedly connected with supporting layer 11 of flexible slotted tube 1702, the inside sliding connection of flexible slotted tube 1702 has telescopic link 1701, and telescopic link 1701 can stretch out and draw back the release with the pressure of receiving in the inside slip of flexible slotted tube 1702, and the top fixedly connected with tarpaulin 15 of telescopic link 1701.
When a mouse bites, the spring net ring 12 arranged on the outer wall of the absorbent cotton 13 has high hardness and small gaps, so that the mouse cannot bite into the inside, a large amount of ruins are pressed on the photovoltaic cable during an earthquake, the stainless steel ring 14 on the inner wall of the absorbent cotton 13 is flattened by huge pressure, the inward deformed stainless steel ring 14 drives the telescopic rod 1701 of the compression-resistant telescopic device 17 fixedly connected with the inner wall of the inward deformed stainless steel ring 14 to stretch and slowly press towards the telescopic groove tube 1702 fixedly connected with the outer wall of the supporting layer 11, meanwhile, the EVA compression-resistant layer 16 on the side face together performs compression resistance and relief on the pressure, in a heavy rainstorm and humid environment, a large amount of moisture soaks the photovoltaic cable, the moisture contacts the absorbent cotton 13 to be absorbed partially, the moisture is blocked from the water when the inward soaks continuously, the moisture can still permeate the stainless steel ring 14 for a long time, and the permeated moisture is blocked by the waterproof cloth 15 on the inner wall of the stainless steel ring 14, the moisture that is not blockked up can be absorbed partly through activated carbon powder 10, is outside by the separation of polyethylene waterproof layer 6 again, and when external circuit catches fire, there is not halogen acid gas to emit when there is not the burning of steamed low smoke polyolefin material layer 7, and toxicity and corrosive gas release volume are few, and fire-retardant layer 18's high temperature resistance is high, keeps off the fire outside, and at the in-process of transmission information simultaneously, shielding layer 5 shields out external mixed and disorderly signal, guarantees internal signal transmission's stability. ' Qiyi
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. The utility model provides a waterproof fireproof photovoltaic cable, includes thick copper wire (1), its characterized in that: the outer wall of each thick copper wire (1) is fixedly connected with a plurality of thin copper wires (2), a wiring layer (3) is arranged outside each thin copper wire (2), an insulating layer (4) is arranged on the outer wall of each wiring layer (3), a shielding layer (5) is arranged on the outer wall of each insulating layer (4), and a polyethylene waterproof layer (6) is arranged on the outer wall of each shielding layer (5); a halogen-free low-smoke polyolefin material layer (7) is arranged on the outer wall of the polyethylene waterproof layer (6), and a fixed wall (9) is fixedly arranged on the outer wall of the halogen-free low-smoke polyolefin material layer (7); a convex groove (8) is formed in the side face of the fixed wall (9), activated carbon powder (10) is arranged inside the fixed wall (9), a flame-retardant layer (18) is arranged on the outer wall of the fixed wall (9), and a supporting layer (11) is arranged on the outer wall of the flame-retardant layer (18); the outer wall of the supporting layer (11) is provided with an EVA (ethylene vinyl acetate) pressure-resistant layer (16) and a pressure-resistant telescopic device (17), and the other sides of the EVA pressure-resistant layer (16) and the pressure-resistant telescopic device (17) are fixedly connected with waterproof cloth (15); the outer wall of the waterproof cloth (15) is provided with a stainless steel sleeve ring (14), the outer wall of the stainless steel sleeve ring (14) is provided with water absorption cotton (13), and the outer wall of the water absorption cotton (13) is provided with a spring net ring (12); the anti-compression telescopic device (17) comprises a telescopic rod (1701) and a telescopic trough pipe (1702), wherein the bottom of the telescopic trough pipe (1702) is fixedly connected with a supporting layer (11), the telescopic rod (1701) is slidably connected inside the telescopic trough pipe (1702), and the top of the telescopic rod (1701) is fixedly connected with a waterproof cloth (15).
2. The compression-resistant method for the waterproof and fireproof photovoltaic cable according to claim 1, characterized in that: when the cable is stressed, the stainless steel ferrule (14) on the inner wall of the absorbent cotton (13) is smashed by pressure, the inward-deformed stainless steel ferrule (14) drives the telescopic rod (1701) of the compression-resistant telescopic device (17) fixedly connected with the inner wall of the inward-deformed stainless steel ferrule to stretch and slowly compress the telescopic rod into the telescopic groove pipe (1702) fixedly connected with the outer wall of the supporting layer (11), and meanwhile, the EVA compression-resistant layer (16) on the side face together compresses and relieves the pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011514861.3A CN112700914B (en) | 2020-12-21 | 2020-12-21 | Waterproof and fireproof photovoltaic cable and compression-resistant method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011514861.3A CN112700914B (en) | 2020-12-21 | 2020-12-21 | Waterproof and fireproof photovoltaic cable and compression-resistant method thereof |
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| CN112700914A CN112700914A (en) | 2021-04-23 |
| CN112700914B true CN112700914B (en) | 2022-08-02 |
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| CN203311915U (en) * | 2013-06-03 | 2013-11-27 | 安徽国华电缆集团有限公司 | Water-resistant overhead cable |
| CN209000579U (en) * | 2018-11-08 | 2019-06-18 | 锐洋集团东北电缆有限公司 | A kind of environment-friendly cable |
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| CN203607137U (en) * | 2013-10-10 | 2014-05-21 | 江阴市银海塑钢制造有限公司 | Refrigerator power line with protection spring |
| CN105023631A (en) * | 2015-01-14 | 2015-11-04 | 四川正方高压线缆有限公司 | Stainless steel mineral-insulated cable |
| WO2019246002A1 (en) * | 2018-06-18 | 2019-12-26 | SeeScan, Inc. | Multi-dielectric coaxial push-cables and associated apparatus |
| CN109448901A (en) * | 2018-10-10 | 2019-03-08 | 江苏源达线缆科技有限公司 | Loss coaxial cables |
| CN209297797U (en) * | 2018-12-25 | 2019-08-23 | 宝应县嘉永电器有限公司 | A kind of solar energy photovoltaic cable |
| CN109741868A (en) * | 2019-01-28 | 2019-05-10 | 重庆力缆电线有限责任公司 | A kind of cold-proof photovoltaic electric wire |
| CN210015736U (en) * | 2019-05-31 | 2020-02-04 | 扬州市中能电缆有限公司 | Dampproofing resistance to compression's mining communication cable of high tenacity |
| CN210167156U (en) * | 2019-09-09 | 2020-03-20 | 江苏通德线缆电器有限公司 | Waterproof pair-twisted digital special communication cable |
| CN211907064U (en) * | 2020-06-08 | 2020-11-10 | 无锡盐祺科技有限公司 | Tensile fireproof optical fiber composite power cable |
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2020
- 2020-12-21 CN CN202011514861.3A patent/CN112700914B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203311915U (en) * | 2013-06-03 | 2013-11-27 | 安徽国华电缆集团有限公司 | Water-resistant overhead cable |
| CN209000579U (en) * | 2018-11-08 | 2019-06-18 | 锐洋集团东北电缆有限公司 | A kind of environment-friendly cable |
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| CN112700914A (en) | 2021-04-23 |
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Denomination of invention: A waterproof and fire-resistant photovoltaic cable and its compression resistance method Granted publication date: 20220802 Pledgee: Industrial and Commercial Bank of China Limited Xining Datong Branch Pledgor: Annette Cable Group Co.,Ltd. Registration number: Y2024630000002 |