A type of overhead power line for civilian use laid in the field
By combining conductors, insulation components, and support components, the high cost and UV resistance issues of civilian power cables when laid outdoors are solved, achieving efficient and safe cable laying and improving the strength and service life of the cables.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINYA ELECTRONICS
- Filing Date
- 2025-07-16
- Publication Date
- 2026-05-26
AI Technical Summary
Existing civilian power lines are costly and troublesome to lay in the field, and have poor UV resistance, resulting in high labor intensity, small span, bulky structure, low economy, and easy to cause safety accidents.
The structure adopts a combination of conductor, first insulator, support, and second insulator. The first insulator is provided outside the conductor, the support is arranged along the conductor axis and covered by the second insulator, the support is above the center of the conductor, and the second insulator covers the support. It is made of UV-resistant polyvinyl chloride material. The support is made of multiple steel cores twisted together. The first insulator is made of PVC material with high insulation performance.
It improves the strength and service life of the wires, enables one-time installation, reduces labor intensity and installation costs, enhances UV resistance, and avoids safety accidents such as cracking.
Smart Images
Figure CN224287801U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of civilian electrical wire technology, specifically to a civilian overhead power line laid in the field. Background Technology
[0002] With the continuous development of the power industry, people are using a wider variety of power cables in increasingly complex scenarios. In practical applications, there is a need to lay reusable power cables in outdoor areas (recyclable within 1.5 years). These typically require one-time laying, a certain level of strength, a relatively long laying distance, and low material costs and capital expenditures, such as reducing the number of pole supports and fixing devices.
[0003] Traditionally, similar wires are mainly BV wires (see structural diagram). Figure 1 BV wire is a conductor made of either type 1 or type 2 bare copper wires twisted together with a certain pitch, and then extruded with a PVC insulation layer; some also have a parallel PVC sheath extruded over the insulation layer. In outdoor locations, at least two BV wires need to be installed, resulting in multiple laying operations, high labor intensity, long working hours, significant cost waste, and limited installation span. Furthermore, it's worth noting that various colored BV wires and the white sheath of BV wires cannot be installed outdoors because they are not UV resistant (UV resistance refers to resistance to ultraviolet rays), and after a period of outdoor use, they are prone to cracking and other safety hazards. There is another type of overhead insulated cable with a similar structure to BV wire, but its minimum specification is 10 square millimeters, which is relatively large compared to electrical wire specifications. In outdoor areas, laying BV wires for approximately 1.5 years presents problems such as low economic efficiency, large outer diameter, bulky structure, cumbersome installation, and limited flexibility. Utility Model Content
[0004] To address the problems of high cost and cumbersome installation of existing civilian power lines in the background art, this utility model provides a method for laying civilian overhead power lines in the field.
[0005] The technical solution of this utility model is: a civilian overhead power line laid in the field, including a conductor, and further comprising:
[0006] The first insulating element covers the conductor;
[0007] A support element, arranged along the conductor's axial direction, is used to support the conductor;
[0008] The second insulating element covers the first insulating element.
[0009] As a further improvement of this utility model, there are two conductors, and the first insulating element is provided on the outside of both conductors.
[0010] As a further improvement of this utility model, the support member is provided correspondingly to the conductor and is located above the center of the conductor, and the second insulating member is provided to cover the support member.
[0011] As a further improvement of this utility model, both conductors are provided with a first insulating element, which is marked with different colors; the two conductors are arranged side by side.
[0012] As a further improvement of this utility model, two first insulating members are correspondingly provided on the outside of the two conductors, and each conductor is provided with a corresponding support member. The second insulating member is extruded and shaped at one time and covers the first insulating member and the support member.
[0013] As a further improvement of this utility model, two first insulating members are provided on the outside of the two conductors respectively, and the second insulating member covers the two first insulating members and is recessed inward at the middle part of the two first insulating members to form a groove.
[0014] As a further improvement of this utility model, the support member is located in the middle of the two first insulating members and is located diagonally above the conductor and is covered by the second insulating member.
[0015] As a further improvement of this utility model, the support member is made of multiple steel cores twisted together into one strand.
[0016] As a further improvement of this utility model, the thickness of the first insulating member is 0.7-0.8 mm, and the insulation resistance of the first insulating member at 70°C is greater than 0.011 MΩ·km.
[0017] As a further improvement of this utility model, the thickness of the second insulating component is 0.9-1.1 mm, and the second insulating component is integrally molded from UV-resistant polyvinyl chloride.
[0018] The beneficial effects of this utility model are that the addition of a support component significantly improves the product's strength, increases the span and service life of aerial laying in the field, enables one-time laying, improves laying efficiency, saves labor intensity, saves laying time, and reduces laying costs. This utility model also has the advantages of simple structure and long service life. Attached Figure Description
[0019] Appendix Figure 1 This is a structural diagram of existing BV wires and overhead cables.
[0020] Appendix Figure 2 This is a structural schematic diagram of Embodiment 1 of the present utility model.
[0021] Appendix Figure 3 This is a schematic diagram of the structure of Embodiment 2 of this utility model.
[0022] In the diagram, 1 is the conductor; 2 is the first insulating component; 3 is the support component; 4 is the second insulating component; and 5 is the groove. Detailed Implementation
[0023] The embodiments of this utility model will be further described below with reference to the accompanying drawings:
[0024] Depend on Figure 2-3 As shown, a type of overhead power line for civilian use laid in the field includes a conductor 1, and also includes:
[0025] The first insulating element 2 covers the conductor 1; specifically, the present invention can use conductors of 1.5 mm, 2.5 mm, 4 mm, or 6 mm.
[0026] Support member 3 is arranged along the axial direction of conductor 1 and is used to support conductor 1;
[0027] The second insulating component 4 covers the first insulating component 2. The beneficial effects of this invention are that the addition of a supporting component significantly improves product strength, increases the span and service life of aerial installations in the field; it enables one-time installation, improving installation efficiency, saving labor intensity, saving installation time, and reducing installation costs. This invention also has the advantages of simple structure and long service life.
[0028] The conductor 1 consists of two wires, each of which is equipped with the first insulating element 2. This structure changes the traditional method of haphazardly pulling the two cores of BV wire, avoiding the need for multiple laying operations and increasing labor costs.
[0029] The support member 3 is correspondingly arranged to the conductor 1 and is positioned above the center of the conductor 1. The second insulating member 4 is arranged to cover the support member 3. In Embodiment 1, the support member is positioned directly above the conductor. This utility model enables simple installation, completing the installation in one go, improving installation efficiency, saving labor intensity, and saving installation time. With one support member above each conductor, the product structure is simple, the force is evenly distributed and more stable, resulting in a longer product lifespan, which is the preferred embodiment of this utility model. In this utility model, the support member is positioned outside the first insulating member to avoid contact between the support member and the conductor, preventing damage to the conductor, which is the preferred embodiment of this utility model. Of course, in practice, the support member can also be positioned inside the first insulating member.
[0030] Both conductors 1 are equipped with a first insulating element 2, which is marked with different colors; the two conductors 1 are arranged side by side. The first insulating elements with different colors are convenient for wiring, maintenance, and have a simple structure. Usually, the first insulating elements use easily distinguishable colors such as brown, blue, and yellow. In this utility model, the first insulating elements use brown and blue to distinguish the two conductors.
[0031] Two first insulating members 2 are correspondingly arranged on the outside of the two conductors 1, and each conductor 1 is provided with a support member 3. The second insulating member 4 is extruded and shaped at one time and covers the first insulating member 2 and the support member 3. This makes the product processing convenient and reduces production costs. Specifically, the conductors and the first insulating members are processed first, and then the conductors, the first insulating members, the support members, the other conductors, the insulating members, and the other support members are extruded and shaped together, which facilitates processing and improves the centering accuracy.
[0032] Two first insulating members 2 are correspondingly arranged outside the two conductors 1. The second insulating member 4 covers the two first insulating members 2 and is recessed inward at the middle of the two first insulating members 2 to form a groove 5. The groove reduces material usage and lowers costs, while also allowing the second insulating members to be directly connected at this location. This increases the insulation length between the two conductors.
[0033] The support member 3 is located in the middle of the two first insulating members 2 and diagonally above the conductor 1, and is covered by the second insulating member 4. This structure is simple, saves materials, and reduces costs, making it the preferred embodiment of this utility model. Specifically, the support member 3 is composed of multiple steel cores twisted together.
[0034] The thickness of the first insulating component 2 is 0.7-0.8 mm, and the insulation resistance of the first insulating component 2 at 70℃ is greater than 0.011 MΩ·km, which exceeds the conventional standard requirements. The first insulating component (inner insulation) is made of high-insulation-performance PVC material, which ensures excellent and stable insulation performance and improves the safety of users.
[0035] The thickness of the second insulating component 4 is 0.9-1.1 mm, and it is integrally molded from UV-resistant polyvinyl chloride. This invention utilizes an integral external insulation (second insulating component) to effectively prevent the steel core (support component) from oxidation and corrosion by moisture when exposed to air. The integral external insulation effectively prevents mechanical damage such as dents and scratches to the blue and brown polyvinyl chloride inner insulation layers (first insulating component), while also increasing insulation performance, thus providing both protection and insulation.
[0036] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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 this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0038] Please note to all technical personnel: Although this utility model has been described according to the specific embodiments above, the inventive concept of this utility model is not limited to this utility model. Any modification that utilizes the inventive concept will be included within the scope of protection of this utility model patent.
Claims
1. A type of overhead power line for civilian use laid in the field, comprising a conductor (1), characterized in that: Also includes: The first insulating element (2) covers the conductor (1); Support member (3) is arranged along the axial direction of conductor (1) and is used to support conductor (1); The second insulating element (4) covers the first insulating element (2).
2. The type of overhead power line for civilian use laid in the field according to claim 1, characterized in that... The conductor (1) has two strands, and the first insulating element (2) is provided on the outside of both conductors (1).
3. A type of overhead power line for civilian use laid in the field according to claim 2, characterized in that... The support member (3) is provided corresponding to the conductor (1) and is located above the center of the conductor (1). The second insulating member (4) is provided to cover the support member (3).
4. A type of overhead power line for civilian use laid in the field according to claim 2, characterized in that... Both conductors (1) are provided with a first insulating element (2) and are marked with different colors of the first insulating element (2); the two conductors (1) are arranged side by side.
5. A type of overhead power line for civilian use laid in the field according to claim 2, characterized in that... Two first insulating members (2) are provided on the outside of the two conductors (1), and each conductor (1) is provided with a support member (3). The second insulating member (4) is extruded and shaped at one time and covers the first insulating member (2) and the support member (3).
6. A type of overhead power line for civilian use laid in the field according to claim 2, characterized in that... Two first insulating members (2) are provided on the outside of the two conductors (1), and the second insulating member (4) covers the two first insulating members (2) and is recessed inward at the middle part of the two first insulating members (2) to form a groove (5).
7. A type of overhead power line for civilian use laid in the field according to claim 6, characterized in that... The support member (3) is located in the middle of the two first insulating members (2) and is located diagonally above the conductor (1) and is covered by the second insulating member (4).
8. A type of overhead power line for civilian use laid in the field according to claim 1, characterized in that... The support member (3) is made of multiple steel cores twisted together.
9. A type of overhead power line for civilian use laid in the field according to claim 1, characterized in that... The thickness of the first insulating component (2) is 0.7-0.8 mm, and the insulation resistance of the first insulating component (2) at 70℃ is greater than 0.011 MΩ·km.
10. A type of overhead power line for civilian use laid in the field according to claim 1, characterized in that... The thickness of the second insulating component (4) is 0.9-1.1 mm, and the second insulating component (4) is integrally molded from UV-resistant polyvinyl chloride.