High-wear-resistance aerial cable
Through multi-layer structural design and specific material combinations, the problems of traditional overhead cables being prone to aging and having poor wear resistance at high temperatures have been solved, achieving stable operation and improved wear resistance of the cables over a wide temperature range.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU HENGFENG CABLE
- Filing Date
- 2025-03-20
- Publication Date
- 2026-04-17
AI Technical Summary
Traditional overhead cables are prone to aging and cracking at high temperatures, have poor wear resistance, and are easily worn down and structurally damaged after long-term use.
The cable employs a multi-layer structure design, including a conductor, insulation layer, heat insulation layer, heat-resistant reinforcement layer, heat-resistant layer, flame-retardant layer, protective layer, and wear-resistant coating. These layers utilize cross-linked polyethylene, glass fiber, carbon fiber, ethylene propylene rubber, alumina, chlorinated polyethylene, and Teflon materials to enhance the cable's heat resistance, wear resistance, and flame retardancy.
It improves the heat resistance of the cable, prevents high-temperature aging, enhances mechanical properties, improves wear resistance, prevents wear and chemical corrosion, and maintains stable operation of the cable over a wide temperature range.
Smart Images
Figure CN224137930U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of overhead cable technology, and in particular relates to a high wear-resistant overhead cable. Background Technology
[0002] Overhead cable, also known as overhead insulated cable, is an overhead conductor with an insulation layer and a protective sheath. It is manufactured using a process similar to that of cross-linked cables and is a new type of power transmission method between overhead conductors and underground cables. It is mainly used in telecommunications systems or for power transmission with voltages below 1000 volts. At the same time, there are also overhead cables with voltages as high as 69,000 volts, which are used to supply power to farms, waterworks, transmitters and other facilities outside urban areas.
[0003] Traditional overhead cables, while possessing good high-temperature resistance, may experience thermal aging and cracking when exposed to prolonged sunlight. Furthermore, their low abrasion resistance makes them susceptible to structural damage from friction and wear over extended periods, leading to loosening or breakage. Therefore, we propose a highly abrasion-resistant overhead cable. Utility Model Content
[0004] The purpose of this invention is to provide a high wear-resistant overhead cable to solve the problems mentioned in the background art.
[0005] In view of this, the present invention provides a high wear-resistant overhead cable, comprising:
[0006] A conductor and an insulating layer, wherein the insulating layer is disposed around the periphery of the conductor, a heat insulation layer is disposed around the periphery of the insulating layer, a heat-resistant reinforcing layer is disposed around the periphery of the heat insulation layer, a heat-resistant layer is disposed around the periphery of the heat-resistant reinforcing layer, a flame-retardant layer is disposed around the periphery of the heat-resistant layer, a protective layer is disposed around the periphery of the flame-retardant layer, and a wear-resistant coating is disposed around the periphery of the protective layer.
[0007] Based on the above structure, the insulation layer ensures improved heat resistance of the overhead cable; the heat insulation layer effectively blocks heat transfer, enhancing the mechanical and heat resistance of the overhead cable; the heat-resistant layer increases both heat and cold resistance, enabling stable performance over a wide temperature range; the heat-resistant reinforcement layer further enhances high-temperature resistance; the flame-retardant layer effectively improves fire resistance and flame retardancy; the protective layer maintains its physical and mechanical properties under prolonged sun exposure, enhancing high-temperature resistance; the protective layer provides high-temperature resistance while also increasing abrasion resistance, chemical resistance, and UV resistance; and the abrasion-resistant coating further enhances abrasion resistance and chemical stability, effectively protecting the cable from environmental erosion and wear.
[0008] In the above technical solution, the insulating layer is further described as cross-linked polyethylene material.
[0009] In this technical solution, the insulation layer is ensured to have good heat resistance, maintain good electrical performance at high temperatures, have high mechanical strength, excellent tensile strength, resist chemical corrosion, have good corrosion resistance to most chemicals, and have strong aging resistance, with good UV resistance and anti-aging properties.
[0010] In the above technical solution, the heat insulation layer is further described as being made of glass fiber material.
[0011] In this technical solution, the insulation layer is ensured to have characteristics such as high strength, high temperature resistance and low thermal conductivity, which can effectively block heat transfer and improve the mechanical properties and heat resistance of the cable.
[0012] In the above technical solution, the heat-resistant reinforcing layer is further described as being made of carbon fiber material.
[0013] In this technical solution, the heat-resistant reinforcing layer is ensured to have extremely high strength and modulus, while having low density and light weight, and also ensuring good heat resistance and chemical stability.
[0014] In the above technical solution, the heat-resistant layer is further described as being made of ethylene propylene rubber.
[0015] In this technical solution, the heat-resistant layer is ensured to have good heat resistance, cold resistance, ozone resistance and chemical corrosion resistance, and can maintain stable performance over a wide temperature range.
[0016] In the above technical solution, the flame-retardant layer is further described as being made of alumina.
[0017] In this technical solution, the flame-retardant layer is ensured to have good chemical stability and mechanical strength, which can effectively improve the fire resistance and flame-retardant performance of overhead cables.
[0018] In the above technical solution, the protective layer is further described as chlorinated polyethylene material.
[0019] In this technical solution, the protective layer is designed to be lightweight, hard, have a low coefficient of friction, and possess excellent wear resistance, high temperature resistance, chemical resistance, and UV resistance. This allows it to protect overhead cables in harsh environments, while also maintaining good physical and mechanical properties at high temperatures.
[0020] In the above technical solution, the wear-resistant coating is further described as a Teflon material.
[0021] In this technical solution, the wear-resistant coating is ensured to have good wear resistance, adhesion and chemical stability, which enables the overhead cable to be widely used in occasions that require anti-corrosion and wear protection. It can also effectively protect the overhead cable from the erosion and wear of the external environment.
[0022] The beneficial effects of this utility model are:
[0023] 1. This high wear-resistant overhead cable features an insulation layer that enhances its heat resistance, a heat insulation layer that effectively blocks heat transfer, improving its mechanical and heat resistance, a heat-resistant layer that increases its heat and cold resistance, allowing it to maintain stable performance over a wide temperature range, a heat-resistant reinforcement layer that further enhances its high-temperature resistance, a flame-retardant layer that effectively improves its fire resistance and flame-retardant properties, and a protective layer that maintains its physical and mechanical properties under prolonged sun exposure and enhances its high-temperature resistance. This addresses the problem of thermal aging and cracking of the cable surface material due to poor high-temperature resistance under prolonged sun exposure.
[0024] 2. This high wear-resistant overhead cable, through its protective layer, ensures that while providing high-temperature resistance, it also enhances the cable's wear resistance, chemical resistance, and UV resistance. The wear-resistant coating further increases the cable's wear resistance and chemical stability, effectively protecting it from environmental erosion and wear. This solves the problem of structural damage caused by friction and wear during long-term use, which can lead to cable loosening or breakage. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0026] Figure 2 This is a top view of the overall structure of this utility model.
[0027] The markings in the diagram are as follows:
[0028] 1. Conductor; 2. Insulation layer; 3. Heat insulation layer; 4. Heat-resistant reinforcing layer; 5. Heat-resistant layer; 6. Flame-retardant layer; 7. Protective layer; 8. Wear-resistant coating. Detailed Implementation
[0029] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0030] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0031] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0032] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0033] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples. Example 1
[0034] Please see Figure 1 - Figure 2 As shown, this embodiment provides a high abrasion-resistant overhead cable, comprising:
[0035] The conductor 1 and the insulating layer 2 are disposed around the conductor 1. A heat insulation layer 3 is disposed around the insulating layer 2. A heat-resistant reinforcing layer 4 is disposed around the heat insulation layer 3. A heat-resistant layer 5 is disposed around the heat-resistant reinforcing layer 4. A flame-retardant layer 6 is disposed around the heat-resistant layer 5. A protective layer 7 is disposed around the flame-retardant layer 6. A wear-resistant coating 8 is disposed around the protective layer 7. Example 2
[0036] This embodiment provides a high wear-resistant overhead cable, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the insulation layer 2 is made of cross-linked polyethylene material.
[0037] Among them, the insulation layer 2 is designed to have good heat resistance, maintain good electrical properties at high temperatures, have high mechanical strength, excellent tensile strength, be resistant to chemical corrosion, have good corrosion resistance to most chemicals, and have strong aging resistance, with good UV resistance and anti-aging properties. Example 3
[0038] This embodiment provides a high wear-resistant overhead cable, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the heat insulation layer 3 is made of glass fiber material.
[0039] Among them, the insulation layer 3 is designed to have high strength, high temperature resistance and low thermal conductivity, which can effectively block heat transfer and improve the mechanical and heat resistance of the cable. Example 4
[0040] This embodiment provides a high wear-resistant overhead cable, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the heat-resistant reinforcing layer 4 is made of carbon fiber material.
[0041] Among them, the heat-resistant reinforcing layer 4 is ensured to have extremely high strength and modulus, while having low density and light weight, and is also ensured to have good heat resistance and chemical stability. Example 5
[0042] This embodiment provides a high wear-resistant overhead cable, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the heat-resistant layer 5 is made of ethylene propylene rubber.
[0043] Among them, the heat-resistant layer 5 is designed to have good heat resistance, cold resistance, ozone resistance and chemical corrosion resistance, and to maintain stable performance over a wide temperature range. Example 6
[0044] This embodiment provides a high wear-resistant overhead cable, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the flame-retardant layer 6 is made of alumina material.
[0045] Among them, ensuring that the flame-retardant layer 6 has good chemical stability and mechanical strength can effectively improve the fire resistance and flame-retardant performance of overhead cables. Example 7
[0046] This embodiment provides a high wear-resistant overhead cable, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the protective layer 7 is made of chlorinated polyethylene material.
[0047] Among them, the protective layer 7 is characterized by being lightweight, hard, having a low coefficient of friction, and excellent wear resistance, high temperature resistance, chemical resistance, and UV resistance. It can protect overhead cables in harsh environments, and at the same time, it can maintain good physical and mechanical properties in high temperature environments. Example 8
[0048] This embodiment provides a high wear-resistant overhead cable, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the wear-resistant coating 8 is a Teflon material.
[0049] Among them, ensuring that the wear-resistant coating 8 has good wear resistance, adhesion and chemical stability enables the overhead cable to be widely used in occasions that require anti-corrosion and wear protection. It can also effectively protect the overhead cable from the erosion and wear of the external environment.
[0050] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. A highly abrasion resistant aerial cable, characterized by, include: A conductor (1) and an insulating layer (2), wherein the insulating layer (2) is disposed on the periphery of the conductor (1), a heat insulation layer (3) is disposed on the periphery of the insulating layer (2), a heat-resistant reinforcing layer (4) is disposed on the periphery of the heat insulation layer (3), a heat-resistant layer (5) is disposed on the periphery of the heat-resistant reinforcing layer (4), a flame-retardant layer (6) is disposed on the periphery of the heat-resistant layer (5), a protective layer (7) is disposed on the periphery of the flame-retardant layer (6), and a wear-resistant coating (8) is disposed on the periphery of the protective layer (7).
2. A highly abrasion resistant power cable as claimed in claim 1, wherein, The insulating layer (2) is made of cross-linked polyethylene material.
3. A highly abrasion resistant power cable as defined in claim 1, wherein, The heat insulation layer (3) is made of glass fiber material.
4. A highly abrasion resistant power cable as defined in claim 1, wherein, The heat-resistant reinforcing layer (4) is made of carbon fiber.
5. A highly abrasion resistant power cable as defined in claim 1, wherein, The heat-resistant layer (5) is made of ethylene propylene rubber.
6. A highly abrasion resistant power cable as defined in claim 1, wherein, The flame-retardant layer (6) is made of alumina.
7. A highly abrasion resistant power cable as defined in claim 1, wherein, The protective layer (7) is made of chlorinated polyethylene.
8. A highly abrasion resistant power cable as defined in claim 1, wherein, The wear-resistant coating (8) is made of Teflon material.