A wind-resistant overhead cable

Abstract

This utility model relates to the field of overhead cable technology and discloses a wind-resistant overhead cable, including an outer layer, inside which an aluminum-clad steel core reinforcing core layer is fixedly connected. This utility model, through the dual protective structure of the outer layer and the protective shell, and the synergistic effect of the wind-guiding groove, the arc-shaped diverting plate, and the guide plate, effectively changes the direction and speed of wind flow. The wind-guiding groove guides the wind to flow along the groove direction, the arc-shaped diverting plate splits the wind from the middle to both sides, and the guide plate and the wind-guiding groove further disperse the wind force, making the wind force more evenly distributed on the cable surface. This significantly reduces the direct impact and concentrated impact force of wind on the cable, reduces the cable's sway amplitude, avoids severe swaying and deformation of the cable due to excessive wind force in strong wind environments, effectively extends the cable's service life, improves the cable's operational stability and reliability under severe wind conditions, and ensures the continuity and safety of power transmission.

Description

Technical Field

[0001] This utility model relates to the field of overhead cable technology, and in particular to a wind-resistant overhead cable. Background Technology

[0002] Overhead cables are commonly used conductive lines in power transmission systems and are widely used in urban and rural power transmission. They transmit electrical energy from power plants to various user terminals by being erected on utility poles or towers.

[0003] Traditional overhead cables typically consist of a conductive core and an outer insulation layer. The conductive core is responsible for transmitting current, while the outer insulation layer is used to prevent current leakage and protect the conductive core from corrosion by external environmental factors. This structure can meet basic power transmission needs under normal conditions. However, under severe weather conditions such as strong winds, the shortcomings of traditional overhead cables become particularly apparent. Due to the lack of effective wind resistance design, traditional overhead cables are easily affected by wind. When the wind is strong, the cable will swing violently under the action of the wind. This swinging not only increases the friction between the cable and the supporting structure, but may also cause the cable to deform or even break. In addition, the violent swinging of the cable may also cause safety accidents such as short circuits and power outages, seriously affecting the stability and safety of power transmission. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a wind-resistant overhead cable.

[0005] This utility model is achieved using the following technical solution: a wind-resistant overhead cable, comprising an outer layer, an aluminum-clad steel core reinforcing core layer fixedly connected inside the outer layer, an electrical insulation layer fixedly connected inside the aluminum-clad steel core reinforcing core layer, a cable body fixedly connected inside the electrical insulation layer, a protective shell fixedly connected to the outer surface of the outer layer, several air-guiding grooves formed on the upper and lower surfaces of the protective shell, an arc-shaped diverter plate fixedly connected to the surface of the protective shell, a guide plate fixedly connected to the upper surface of the arc-shaped diverter plate, and several air-penetrating grooves formed on the surface of the guide plate.

[0006] The above technical solutions effectively improve the cable's wind resistance, enabling it to operate stably even in harsh wind conditions. This reduces cable damage and swaying caused by wind, increases the cable's service life and reliability, and ensures the stability of power transmission.

[0007] As a further improvement to the above solution, the outer layer is made of polyvinyl chloride, and the aluminum-clad steel core reinforcing layer is made of aluminum-clad steel composite material.

[0008] The above technical solutions optimize the external protection and internal performance of the cable, further enhancing its durability and stability, extending its service life, and reducing maintenance costs.

[0009] As a further improvement to the above solution, the electrical insulation layer is made of cross-linked polyethylene.

[0010] The above technical solutions improve the electrical insulation performance and operational reliability of cables, ensure the quality and safety of power transmission, and reduce electrical faults and safety hazards caused by insufficient insulation performance.

[0011] As a further improvement to the above solution, two arc-shaped diverter plates are provided, which are fixedly connected to both sides of the outer surface of the protective shell.

[0012] The above technical solutions enhance the cable's wind resistance performance, making it more stable in strong wind environments, reducing the risk of cable damage caused by wind, and improving the cable's operational stability.

[0013] As a further improvement to the above solution, the arc-shaped diverter plate is made of aluminum alloy.

[0014] The above technical solutions have improved the performance and service life of the arc-shaped diverter.

[0015] As a further improvement to the above solution, the guide plate is made of polycarbonate.

[0016] The above technical solutions improve the impact resistance and stability of the guide plate, enabling it to better guide wind force and further optimize the wind resistance performance of the cable.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This invention effectively alters the direction and speed of wind flow through a dual protective structure consisting of an outer layer and a protective shell, along with the synergistic effect of the air-guiding groove, the arc-shaped diverting plate, and the guide plate. The air-guiding groove guides the wind to flow along its direction, the arc-shaped diverting plate splits the wind from the middle to both sides, and the guide plate and air-guiding groove further disperse the wind force, making the wind force more evenly distributed on the cable surface. This significantly reduces the direct impact and concentrated impact force of the wind on the cable, reduces the cable's sway amplitude, and avoids severe swaying and deformation of the cable due to excessive wind force in strong wind environments. It effectively extends the cable's service life, improves the cable's operational stability and reliability under harsh wind conditions, and ensures the continuity and safety of power transmission. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the aluminum-clad steel core reinforcing layer of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the guide plate of this utility model;

[0022] Figure 4 This is a schematic diagram of the arc-shaped diverter plate of this utility model.

[0023] Explanation of key symbols:

[0024] 1. Outer layer; 2. Aluminum-clad steel core reinforcing core layer; 3. Electrical insulation layer; 4. Cable body; 5. Protective outer shell; 6. Air intake groove; 7. Arc-shaped diverter plate; 8. Guide plate; 9. Air passage groove. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Example

[0026] Please combine Figure 1-4 This embodiment of a wind-resistant overhead cable includes an outer layer 1, an aluminum-clad steel core reinforcing core layer 2 fixedly connected inside the outer layer 1, an electrical insulation layer 3 fixedly connected inside the aluminum-clad steel core reinforcing core layer 2, a cable body 4 fixedly connected inside the electrical insulation layer 3, a protective shell 5 fixedly connected to the outer surface of the outer layer 1, several air-guiding grooves 6 formed on both the upper and lower surfaces of the protective shell 5, an arc-shaped diverter plate 7 fixedly connected to the surface of the protective shell 5, a guide plate 8 fixedly connected to the upper surface of the arc-shaped diverter plate 7, and several air-penetrating grooves 9 formed on the surface of the guide plate 8. The aluminum-clad steel core reinforcing core layer 2 provides support for the cable. The outer layer 1 and the protective shell 5 provide mechanical strength support to ensure that the cable is not easily deformed or broken under the action of external forces such as wind. The electrical insulation layer 3 ensures the electrical insulation performance of the cable and prevents current leakage. The outer layer 1 and the protective shell 5 work together to protect the internal structure. At the same time, the air-guiding groove 6 and the arc-shaped diverting plate 7, together with the guide plate 8 and the air-penetrating groove 9, change the direction and speed of the air flow and reduce the resistance of the wind to the cable. When the wind blows towards the cable, the air-guiding groove 6 can guide the wind to flow along the groove direction, the arc-shaped diverting plate 7 can divert the wind, and the guide plate 8 and the air-penetrating groove 9 can further guide and disperse the wind force, thereby reducing the direct impact of the wind on the cable and reducing wind resistance.

[0027] The outer layer 1 is made of polyvinyl chloride (PVC), and the aluminum-clad steel core reinforcing core layer 2 is made of aluminum-clad steel composite material. The outer layer 1, made of PVC, has good weather resistance, corrosion resistance, and certain mechanical strength, enabling it to adapt to different environmental conditions and protect the internal structure from external environmental factors. The aluminum-clad steel core reinforcing core layer 2, made of aluminum-clad steel composite material, combines the lightweight properties of aluminum with the high strength of steel. The aluminum layer can provide a certain degree of corrosion protection for the steel core, while the steel core provides sufficient mechanical strength to keep the cable stable when subjected to large tensile forces and wind forces.

[0028] The electrical insulation layer 3 is made of cross-linked polyethylene. Cross-linked polyethylene has excellent electrical insulation, heat resistance and mechanical properties. During the operation of the cable, it can effectively isolate the cable body 4 from the outside world, prevent current leakage and ensure the safety and reliability of power transmission. At the same time, cross-linked polyethylene can maintain good insulation performance at high temperatures, enabling the cable to work normally within a certain temperature range.

[0029] There are two arc-shaped diverter plates 7, which are fixedly connected to both sides of the outer surface of the protective shell 5. When the wind blows towards the cable, the arc-shaped diverter plates 7 on both sides can divert the wind from the middle to both sides, making the wind force distribution on the cable surface more uniform, further reducing the concentrated impact force of the wind on the cable, and reducing the sway amplitude of the cable.

[0030] The arc-shaped shunt plate 7 is made of aluminum alloy. During cable operation, the arc-shaped shunt plate 7 made of aluminum alloy can reduce the overall weight of the cable while ensuring sufficient mechanical strength and structural stability, which facilitates the laying and installation of the cable. Moreover, the corrosion resistance of aluminum alloy can enable it to maintain good working condition under harsh environmental conditions and extend its service life.

[0031] The guide plate 8 is made of polycarbonate. The impact resistance of polycarbonate can ensure that the guide plate 8 is not easily damaged under the action of wind, and ensure that its function of guiding wind is properly performed.

[0032] The implementation principle of a wind-resistant overhead cable in this embodiment is as follows: When encountering wind, the outer layer 1 and the protective shell 5 work together to protect the internal structure. The outer layer 1 is made of polyvinyl chloride, which has good weather resistance, corrosion resistance, and certain mechanical strength, and can adapt to different environmental conditions, protecting the internal structure from external environmental factors. The upper and lower surfaces of the protective shell 5 are provided with several wind-guiding grooves 6. When the wind blows towards the cable, the wind-guiding grooves 6 can guide the wind to flow along the groove direction, changing the wind flow direction, making the wind force distribution on the cable surface more uniform, and reducing the direct impact of the wind on the cable. The arc-shaped diversion plates 7 on both sides can divert the wind from the middle to both sides, further reducing the concentrated impact force of the wind on the cable and reducing the sway amplitude of the cable. The guide plate 8 and the air-penetrating groove 9 further guide the wind. The aluminum-clad steel core reinforcement layer 2 provides mechanical strength support for the cable, ensuring that the cable is not easily deformed or broken under the action of external forces such as wind. The aluminum-clad steel core reinforcement layer 2 is made of aluminum-clad steel composite material, which combines the lightweight of aluminum and the high strength of steel. The aluminum layer can play a certain role in corrosion protection for the steel core, while the steel core provides sufficient mechanical strength to keep the cable stable when subjected to large tensile forces and external forces such as wind. The electrical insulation layer 3 is made of cross-linked polyethylene. Cross-linked polyethylene has excellent electrical insulation performance, heat resistance and mechanical properties. During the operation of the cable, it can effectively isolate the cable body 4 from the external electrical connection, prevent current leakage and ensure the safe and reliable power transmission.

[0033] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An anti-windage aerial cable, characterized in that, The cable includes an outer layer (1), an aluminum-clad steel core reinforcing core layer (2) fixedly connected inside the outer layer (1), an electrical insulation layer (3) fixedly connected inside the aluminum-clad steel core reinforcing core layer (2), a cable body (4) fixedly connected inside the electrical insulation layer (3), a protective shell (5) fixedly connected to the outer surface of the outer layer (1), several air-guiding grooves (6) are provided on the upper and lower surfaces of the protective shell (5), an arc-shaped diverter plate (7) fixedly connected to the surface of the protective shell (5), a guide plate (8) fixedly connected to the upper surface of the arc-shaped diverter plate (7), and several air-penetrating grooves (9) are provided on the surface of the guide plate (8).

2. An anti-wind-rush aerial cable as claimed in claim 1, characterised in that: The outer layer (1) is made of polyvinyl chloride, and the aluminum-clad steel core reinforcing core layer (2) is made of aluminum-clad steel composite material.

3. An anti-wind-rush aerial cable as claimed in claim 1, wherein: The electrical insulation layer (3) is made of cross-linked polyethylene.

4. An anti-wind-rush aerial cable as defined in claim 1, wherein: Two arc-shaped diverter plates (7) are provided, which are fixedly connected to both sides of the outer surface of the protective shell (5).

5. The wind-resistant overhead cable as described in claim 1, characterized in that: The arc-shaped diverter plate (7) is made of aluminum alloy.

6. The wind-resistant overhead cable as described in claim 1, characterized in that: The guide plate (8) is made of polycarbonate.

Images