CN110867277B - Environment-friendly tensile wear-resistant overhead insulated cable and four-core structure overhead insulated cable - Google Patents
Environment-friendly tensile wear-resistant overhead insulated cable and four-core structure overhead insulated cable Download PDFInfo
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- CN110867277B CN110867277B CN201911190377.7A CN201911190377A CN110867277B CN 110867277 B CN110867277 B CN 110867277B CN 201911190377 A CN201911190377 A CN 201911190377A CN 110867277 B CN110867277 B CN 110867277B
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- 229910000831 Steel Inorganic materials 0.000 claims description 6
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Classifications
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- 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
- H01B7/1865—Sheaths comprising braided non-metallic layers
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- 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
- H01B7/0045—Cable-harnesses
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- 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
- H01B7/02—Disposition of insulation
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- 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
- H01B7/1805—Protections not provided for in groups H01B7/182 - H01B7/26
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- 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
- H01B7/182—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments
- H01B7/183—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments forming part of an outer sheath
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- 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
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- 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
- H01B7/22—Metal wires or tapes, e.g. made of steel
- H01B7/221—Longitudinally placed metal wires or tapes
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- H—ELECTRICITY
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- 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
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- H—ELECTRICITY
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- 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
- H01B7/2806—Protection against damage caused by corrosion
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- H—ELECTRICITY
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- 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
- H01B7/285—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable
- H01B7/288—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable using hygroscopic material or material swelling in the presence of liquid
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- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/006—Constructional features relating to the conductors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/008—Power cables for overhead application
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- 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
Landscapes
- Insulated Conductors (AREA)
Abstract
The invention relates to the technical field of power transmission low-voltage distribution cables, in particular to an environment-friendly tensile wear-resistant overhead insulated cable and a four-core structure overhead insulated cable, which comprise a plurality of single-core cables, wherein each single-core cable comprises an aluminum alloy conductor, a water-blocking yarn binding layer, a water-blocking tape layer, a tensile wire layer, a heat-insulating layer and an insulating layer which are sequentially extruded on the aluminum alloy conductor from inside to outside in an overlapping manner, water-blocking yarns are filled between the water-blocking yarn binding layer and the aluminum alloy conductor, and connecting ribs are arranged between every two adjacent single-core cables. The invention has the characteristics of high tensile strength, wear resistance, enhanced water resistance, long service life, environmental protection and the like, can effectively avoid the situations of cable power failure and the like, and improves the safety and stability of the overhead cable for the power transmission low-voltage distribution line in the use process.
Description
Technical Field
The invention relates to the technical field of power transmission low-voltage distribution cables, in particular to an environment-friendly tensile wear-resistant overhead insulated cable and a four-core structure overhead insulated cable.
Background
In recent years, with the vigorous development of urban and rural economy advocated by the nation, urban construction and new rural power transformation are continuously improved, and the overhead parallel bunched conductor for the original low-voltage distribution line often appears that 1) the conductor is broken, insulated and damaged and not wear-resistant due to rough construction, and 2) insulation peeling, cracking and damp are easily caused due to long-term use of the product in sunlight, rain and snow and cold environments, so that the safety factor is low, the phenomena of electric leakage and short service life are caused, and the personal safety is endangered.
Disclosure of Invention
Therefore, the invention provides the environment-friendly tensile wear-resistant overhead insulated cable and the four-core structure overhead insulated cable, which have the characteristics of high tensile strength, wear resistance, enhanced water resistance, long service life, environment friendliness and the like, can effectively avoid the situations of cable power failure and the like, and improves the safety and stability of the overhead cable for the power transmission low-voltage distribution line in the use process.
According to the design scheme provided by the invention, the environment-friendly tensile wear-resistant overhead insulated cable comprises a plurality of single-core cables, wherein each single-core cable comprises an aluminum alloy conductor, a water-blocking yarn binding layer, a water-blocking tape layer, a tensile yarn layer, a heat-insulating layer and an insulating layer, wherein the water-blocking yarn binding layer, the water-blocking tape layer, the tensile yarn layer, the heat-insulating layer and the insulating layer are sequentially extruded on the aluminum alloy conductor from inside to outside in an overlapping manner, water-blocking yarns are filled between the water-blocking yarn binding layer and the aluminum alloy conductor, and connecting ribs are arranged between the adjacent single-core cables.
As the environment-friendly tensile wear-resistant overhead insulated cable, the water-blocking tape layer is further made of polypropylene fiber with the weaving density of 90%.
As the environment-friendly tensile wear-resistant overhead insulated cable, the heat-insulating layer is further made of ceramic heat-insulating materials.
As the environment-friendly tensile wear-resistant overhead insulated cable, the insulating layer is further made of an environment-friendly low-pressure halogen-free irradiation crosslinking material.
As the environment-friendly tensile wear-resistant overhead insulated cable, the connecting ribs are further made of environment-friendly low-pressure halogen-free irradiation crosslinking materials.
Furthermore, the invention also provides a four-core structure overhead insulated cable, which comprises four single-core cables of the environment-friendly tensile wear-resistant overhead insulated cable.
As the four-core structure overhead insulated cable, the four single-core cables are further distributed in a star-shaped structure.
As the four-core structure overhead insulated cable, the invention further provides a tensile structure for reinforcing the tensile property of the whole cable on the connecting rib between at least one adjacent single-core cable.
The four-core overhead insulated cable further comprises a steel wire reinforcing layer and a tensile insulating layer extruded on the steel wire reinforcing layer.
As the four-core structure overhead insulated cable, the tensile insulating layer is further made of an environment-friendly low-voltage halogen-free irradiation crosslinking material.
The invention has the beneficial effects that:
The invention has simple structure, scientific and reasonable design, compact product structure, aluminum alloy material adopted by the conductor to improve the overall breaking force of the conductor, water-blocking yarn adopted by the conductor gap to fill, improve the conductivity and insulation performance of the product, greatly improve the service life, and the conductor is formed by water-blocking yarn and water-blocking tape wrapping, thereby improving the water-blocking effect of the product, greatly reducing the gap between the conductor and the water-blocking tape, having excellent environmental protection performance, low production cost, simple and convenient process and more guaranteed quality, and the water-blocking tape is provided with a tensile layer with extremely high tensile strength, structurally improving the overall breaking force and the conductor material performance of the product, and a heat-insulating layer arranged between the tensile layer and the insulating layer can collect redundant heat to stably release at proper time, effectively reduce the loss quantity, and the whole product structure is formed by connecting ribs, has good mechanical performance, can effectively avoid cable power failure, and improves the safety and stability of the overhead cable for the power transmission low-voltage distribution line in the use process.
Drawings
FIG. 1 is a schematic diagram of an overhead insulated cable according to one embodiment;
Fig. 2 is a schematic diagram of a second embodiment of an overhead insulated cable.
Detailed Description
In the figure, reference numeral 1 represents an aluminum alloy conductor, reference numeral 2 represents a water-blocking yarn, reference numeral 3 represents a water-blocking yarn binding layer, reference numeral 4 represents a water-blocking tape layer, reference numeral 5 represents an anti-wiredrawing layer, reference numeral 6 represents a heat-insulating layer, reference numeral 7 represents an insulating layer, reference numeral 8 represents a reinforcing steel wire, reference numeral 9 represents a tensile insulating layer, and reference numeral 10 represents a connecting rib.
The present invention will be described in further detail with reference to the accompanying drawings and technical schemes, and embodiments of the present invention will be described in detail by means of preferred examples, but the embodiments of the present invention are not limited thereto.
The embodiment of the invention provides an environment-friendly tensile wear-resistant overhead insulated cable, which is shown in fig. 1 and comprises a plurality of single-core cables, wherein each single-core cable comprises an aluminum alloy conductor, a water-blocking yarn binding layer, a water-blocking tape layer, a tensile yarn layer, a heat-insulating layer and an insulating layer which are sequentially extruded on the aluminum alloy conductor from inside to outside in an overlapping manner, water-blocking yarns are filled between the water-blocking yarn binding layer and the aluminum alloy conductor, and connecting ribs are arranged between the adjacent single-core cables.
The conductor is made of aluminum alloy materials, the overall breaking force of the conductor is improved, the conductor gap is filled with water-blocking yarns, the conductivity and the insulation performance of the product are improved, the service life of the product is greatly improved, the conductor is formed by wrapping water-blocking yarns and water-blocking tapes, the water-blocking effect of the product is improved, gaps between the conductor and the water-blocking tapes are greatly reduced, the environment-friendly performance is excellent, the production cost is low, the process is simple and convenient, the quality is ensured, the tensile layer is arranged outside the water-blocking tapes, the tensile strength is extremely high, the overall breaking force of the product and the performance of the conductor materials are structurally improved, the insulation layer is arranged between the tensile layer and the insulation layer, the surplus heat can be collected, the heat can be stably released in due to timely operation, the loss is effectively reduced, the balance effect can be achieved, the whole product structure is formed by connecting ribs, the good mechanical performance can be effectively avoided, and the safety and the stability of the overhead cable for the power transmission low-voltage distribution line in the use process can be improved.
As the environment-friendly tensile wear-resistant overhead insulated cable in the embodiment of the invention, the water-blocking tape layer can be made of polypropylene fiber with the weaving density of 90%, has light weight, extremely high tensile strength and better chemical corrosion resistance, and structurally improves the integral breaking force and the conductor material performance of the product. The water-blocking tape is characterized in that the conductor is formed by wrapping three water-blocking yarns and a layer of water-blocking tape, 1) the water-blocking tape swells when meeting water, and the water-blocking effect of the product is improved, 2) the water-blocking yarns are adopted, after the material is subjected to a temperature impact test, the swelling rate can reach 70.9ml/g, the water penetration length of a water penetration test for 72 hours reaches 350cm, the gap between the conductor and the water-blocking tape is greatly reduced, the environment-friendly performance is excellent, the production cost is low, the process is simple and convenient, the quality is ensured, and the water-blocking effect is comprehensively and further improved.
As the environment-friendly tensile wear-resistant overhead insulated cable in the embodiment of the invention, the heat-insulating layer can be made of ceramic heat-insulating materials. Because of this kind of product long-term use in the open-air or in the middle of the air, the phenomenon that the snow piles up the line surface or freezes by appearing, causes the product insulation resistance to reduce easily, insulating ageing, the life of product shortens and harm personal safety's phenomenon, in order to solve this kind of drawback, this novel product is through crowded one deck ceramic insulation material between tensile layer and insulating layer, this kind of material can collect unnecessary heat, and the steady release of timely operation heat, gradient change is little, effectively reduces the loss volume, can play the balancing function.
As the environment-friendly tensile wear-resistant overhead insulated cable in the embodiment of the invention, the insulating layer can be further made of an environment-friendly low-pressure halogen-free irradiation crosslinking material. The insulating material can be a high-temperature resistant 200 ℃ low-smoke halogen-free irradiation crosslinking weather-resistant environment-friendly material, and the material has good superiority in the aspects of heat resistance, high temperature resistance, wear resistance, weather resistance, sunlight resistance, ageing resistance, mechanical property and the like through the control ratio of components, so that the practical problem of the cable in use in the environment of special occasions is solved from the root, and the service life of the cable is prolonged.
As the environment-friendly tensile wear-resistant overhead insulated cable provided by the embodiment of the invention, the connecting ribs can be made of environment-friendly low-pressure halogen-free irradiation crosslinking materials, so that the defect of insufficient integral breaking force caused by rough construction of cable products is effectively overcome, convenience is brought to construction, and laying cost is saved.
Further, referring to fig. 2, the embodiment of the invention further provides a four-core overhead insulated cable, which comprises four single-core cables of the environment-friendly tensile wear-resistant overhead insulated cable.
As the four-core structure overhead insulated cable in the embodiment of the invention, further, four single-core cables are distributed in a star-shaped structure, as shown in fig. 2, three peripheral cables are triangular, and the remaining cable is arranged at the center of the triangle, so that the overall tensile property is improved.
As the four-core structure overhead insulated cable in the embodiment of the invention, further, a tensile structure for reinforcing the tensile property of the whole cable is arranged on the connecting rib between at least one adjacent single-core cables. As shown in FIG. 2, tensile structures are provided between circumferentially adjacent three cores to meet the environmental tensile property requirements.
The four-core overhead insulated cable provided by the embodiment of the invention further comprises a steel wire reinforcing layer and a tensile insulating layer extruded on the steel wire reinforcing layer.
As the four-core structure overhead insulated cable in the embodiment of the invention, the tensile insulating layer is further made of an environment-friendly low-voltage halogen-free irradiation crosslinking material.
Compared with the traditional aerial insulated cable, the aerial insulated cable structure has the characteristics that a three-layer tensile structure is arranged on the aerial insulated cable, a 6000-series aluminum alloy material with higher strength can be adopted as a first layer conductor, a polypropylene fiber with the weaving density of 90% is adopted as a tensile layer on a second layer, a soft steel wire structure is added on a third layer, the whole structure from a single-layer structure to the product is arranged, the tensile performance of the aerial insulated cable is integrally improved, b, only a wrapping water blocking belt is arranged on the aspect of traditional aerial cable water blocking, the water blocking effect is poor, three water blocking materials are adopted for improving the water blocking effect, a conductor gap is filled with water blocking yarns, the conductor is formed by the water blocking yarns and wrapping water blocking belts, c, the special performance of the aerial cable application occasions is improved from three aspects, on one hand, the conductor gaps are filled by filling, the conductive performance and the insulating performance of the product are improved, on the other hand, the second aspect is considered to be easy to see snow and rain in the running process of the product, the insulating resistance of the product is easy to be reduced, the service life of the cable is improved, the service life of the cable is prolonged, the insulating material is completely damaged by the insulation layer is completely exposed by the insulation material in the air, and the service life of the aerial insulated cable is fully improved, and the service life of the insulation material is fully prolonged, and the insulation material is fully damaged in the field is used in the field. The high tensile, wear-resistant, reinforced waterproof, long-life and environment-friendly performances of the environment-friendly high tensile wear-resistant and long-life overhead insulated cable can be further improved, and the long-term use in field occasions can be met.
It is to be understood that the foregoing description of specific exemplary embodiments of the invention has been presented for the purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application to thereby enable one skilled in the art to make and utilize the invention in various exemplary embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
While the exemplary embodiments of the present invention have been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that various modifications and adaptations can be made to the above-described specific embodiments and that various combinations of the features and structures can be made without departing from the scope of the present invention as defined in the appended claims.
Claims (6)
1. The four-core structure overhead insulated cable is characterized by comprising four single-core cables of environment-friendly tensile wear-resistant overhead insulated cables, wherein the four single-core cables are distributed in a star-shaped structure, each single-core cable comprises an aluminum alloy conductor, a water-blocking yarn binding layer, a water-blocking tape layer, a tensile wire layer, a heat-insulating layer and an insulating layer which are sequentially extruded on the aluminum alloy conductor from inside to outside in an overlapping mode, water-blocking yarns are filled between the water-blocking yarn binding layer and the aluminum alloy conductor, connecting ribs are arranged between every two adjacent single-core cables, a tensile structure for reinforcing the tensile performance of the whole cable is arranged on the connecting ribs between at least one adjacent single-core cable, each tensile structure comprises reinforcing steel wires and a tensile insulating layer extruded on the reinforcing steel wires, the three single-core cables at the periphery are triangular, the three single-core cables at the center of the triangle are arranged in the periphery, a tensile structure is also arranged between the three single-core cables at the periphery, the aluminum alloy conductor adopts a series aluminum alloy material, and the tensile wire layer adopts a polypropylene fiber with the weaving density of 90% so that the cable is formed by the aluminum alloy conductor, the anti-layer and the steel wires.
2. The four-core structured overhead insulated cable of claim 1, wherein the tensile insulating layer is made of an environment-friendly low-voltage halogen-free irradiation crosslinking material.
3. The four-core structured overhead insulated cable of claim 1, wherein the water-blocking tape layer is made of polypropylene filaments with a braiding density of 90%.
4. The four-core structured overhead insulated cable of claim 1, wherein the insulating layer is made of a ceramic insulating material.
5. The four-core structured overhead insulated cable of claim 1, wherein the insulating layer is made of an environment-friendly low-pressure halogen-free irradiation crosslinking material.
6. The four-core structured overhead insulated cable according to claim 1, wherein the connecting ribs are made of environment-friendly low-pressure halogen-free irradiation crosslinking materials.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911190377.7A CN110867277B (en) | 2019-11-28 | 2019-11-28 | Environment-friendly tensile wear-resistant overhead insulated cable and four-core structure overhead insulated cable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911190377.7A CN110867277B (en) | 2019-11-28 | 2019-11-28 | Environment-friendly tensile wear-resistant overhead insulated cable and four-core structure overhead insulated cable |
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| CN110867277A CN110867277A (en) | 2020-03-06 |
| CN110867277B true CN110867277B (en) | 2024-11-29 |
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| CN112289489A (en) * | 2020-11-05 | 2021-01-29 | 优易电缆(张家港)有限公司 | Double-branch cable for electronic blasting system, manufacturing process and die |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204596451U (en) * | 2015-03-17 | 2015-08-26 | 天津塑力线缆集团有限公司 | A kind of aerial insulated cable of parallel set beamforming |
| CN107833661A (en) * | 2017-11-14 | 2018-03-23 | 江苏凯达电缆有限公司 | A kind of double sheath flexible water power cables of ceramic insulation double shield |
| CN211087961U (en) * | 2019-11-28 | 2020-07-24 | 人民电缆集团有限公司 | Environment-friendly tensile wear-resistant overhead insulated cable and four-core structure overhead insulated cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107633910A (en) * | 2017-08-30 | 2018-01-26 | 苏州惠华电子科技有限公司 | A kind of abrasion-proof and refractory cable |
| CN108550421A (en) * | 2018-06-25 | 2018-09-18 | 江苏东峰电缆有限公司 | A kind of crosslinked polyetylene insulated pvc sheath radial water-resisting power cable |
| CN109273140A (en) * | 2018-09-07 | 2019-01-25 | 河南讯达电缆有限公司 | The mountain area 1kV weatherability water blocking overhead insulated cable |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204596451U (en) * | 2015-03-17 | 2015-08-26 | 天津塑力线缆集团有限公司 | A kind of aerial insulated cable of parallel set beamforming |
| CN107833661A (en) * | 2017-11-14 | 2018-03-23 | 江苏凯达电缆有限公司 | A kind of double sheath flexible water power cables of ceramic insulation double shield |
| CN211087961U (en) * | 2019-11-28 | 2020-07-24 | 人民电缆集团有限公司 | Environment-friendly tensile wear-resistant overhead insulated cable and four-core structure overhead insulated cable |
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| CN110867277A (en) | 2020-03-06 |
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