High-insulation cable

Abstract

The utility model relates to the technical field of electric power engineering, and discloses a high-insulation cable, which comprises a conductor, a composite insulating layer arranged on the outer wall of the conductor, a shielding layer fixedly mounted on the outer wall of the composite insulating layer, a sheath layer fixedly mounted on the outer wall of the shielding layer, and a second insulating layer arranged on the outer wall of the first insulating layer, the inner wall of the first insulating layer is fixedly connected with the outer wall of the conductor, the outer wall of the first insulating layer is fixedly provided with a second insulating layer, the outer wall of the second insulating layer is fixedly provided with a third insulating layer, the outer wall of the third insulating layer is fixedly connected with the inner wall of the shielding layer, and the conductor is made of copper metal. The composite insulating layer is arranged, the sheath layer is made of a polyvinyl chloride material, and the structural design and material selection of the composite insulating layer are optimized, so that the cable has excellent insulating performance and good mechanical performance; and the requirements of a modern electric power system on high-voltage and large-current transmission are met.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power engineering, in particular to a high-insulation cable. Background Art

[0002] In modern power systems, cables are an important component of power transmission, and their performance directly affects the safe and stable operation of the power system. With the increase in power system voltage levels and transmission capacity, higher requirements are placed on the insulation performance of cables.

[0003] Traditional cables are prone to insulation aging and breakdown in high voltage and high current environments, which not only affects the reliability of the power system, but also may pose safety hazards and cannot meet the needs of modern power systems for high voltage and high current transmission.

[0004] To this end, we propose a high insulation cable. Utility Model Content

[0005] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a high-insulation cable.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a high-insulation cable, comprising a conductor, the outer wall of the conductor is provided with a composite insulation layer, the outer wall of the composite insulation layer is fixedly installed with a shielding layer, the outer wall of the shielding layer is fixedly installed with a sheath layer, the composite insulation layer includes a first insulation layer, and the inner wall of the first insulation layer is fixedly connected to the outer wall of the conductor, the outer wall of the first insulation layer is fixedly installed with a second insulation layer, the outer wall of the second insulation layer is fixedly installed with a third insulation layer, and the outer wall of the third insulation layer is fixedly connected to the inner wall of the shielding layer.

[0007] Preferably, the conductor is made of copper metal, which has good electrical conductivity and mechanical strength.

[0008] Preferably, the shielding layer is composed of metal foil and braided metal wire, which can reduce electromagnetic interference and improve the transmission stability of the cable.

[0009] Preferably, the sheath layer is made of polyvinyl chloride, which can protect the cable from the influence of the external environment and extend the service life of the cable.

[0010] Preferably, the first insulating layer is made of polyethylene material, which has excellent insulation properties and ensures safe operation of the cable under high voltage.

[0011] Preferably, the second insulating layer is made of cross-linked polyethylene, which further enhances the insulation performance of the cable while having good heat resistance and mechanical strength.

[0012] Preferably, the third insulating layer is made of fluoroplastic material, which not only has certain insulation properties, but also has excellent chemical corrosion resistance and high temperature resistance, ensuring stable operation of the cable in harsh environments.

[0013] The utility model provides a high-insulation cable with the following beneficial effects:

[0014] 1. This high-insulation cable has a composite insulation layer and optimizes the structural design and material selection of the composite insulation layer, so that the cable has excellent insulation performance and good mechanical properties, meeting the needs of modern power systems for high voltage and high current transmission.

[0015] 2. This high-insulation cable is equipped with a shielding layer composed of metal foil and braided metal wire, which can reduce electromagnetic interference and improve the transmission stability of the cable.

[0016] 3. This high-insulation cable is provided with a sheath layer, which can protect the cable from the influence of the external environment and extend the service life of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a cross-sectional view of the internal structure of the utility model;

[0018] Figure 2 This is a cross-sectional view of the internal structure of the composite insulation layer of the present invention.

[0019] Legend: 10, conductor; 11, composite insulation layer; 12, shielding layer; 13, sheath layer; 14, first insulation layer; 15, second insulation layer; 16, third insulation layer. DETAILED DESCRIPTION

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only exemplary, and those skilled in the art can derive other implementation drawings based on the provided drawings without inventive effort.

[0021] The structures, proportions, sizes, etc. illustrated in this specification are intended solely to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in size, without affecting the efficacy and objectives of the present invention, shall remain within the scope of the technical contents disclosed herein.

[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0023] In the description of the embodiments of the present invention, it should be noted that the terms "center," "upper," "lower," "inner," "outer," and "side" and the like indicate positions or location relationships based on the positions or location relationships shown in the accompanying drawings, or the positions or location relationships in which the product of the present invention is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and the like are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on the specific circumstances.

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example 1: A high insulation cable, such as Figure 1 As shown, it includes a conductor 10, the outer wall of the conductor 10 is provided with a composite insulating layer 11, the outer wall of the composite insulating layer 11 is fixedly installed with a shielding layer 12, and the outer wall of the shielding layer 12 is fixedly installed with a sheath layer 13. The material of the conductor 10 is copper metal, which has good electrical conductivity and mechanical strength. The shielding layer 12 is composed of metal foil and braided metal wire, which can reduce electromagnetic interference and improve the transmission stability of the cable. The material of the sheath layer 13 is polyvinyl chloride material, which can protect the cable from the influence of the external environment and extend the service life of the cable. By setting the composite insulating layer 11 and optimizing the structural design and material selection of the composite insulating layer 11, the cable has excellent insulation performance and good mechanical properties, which meets the needs of modern power systems for high voltage and large current transmission.

[0027] Example 2: Based on Example 1, Figure 2 As shown, the composite insulating layer 11 includes a first insulating layer 14, and the inner wall of the first insulating layer 14 is fixedly connected to the outer wall of the conductor 10, the outer wall of the first insulating layer 14 is fixedly installed with a second insulating layer 15, the outer wall of the second insulating layer 15 is fixedly installed with a third insulating layer 16, and the outer wall of the third insulating layer 16 is fixedly connected to the inner wall of the shielding layer 12. By providing the shielding layer 12, the shielding layer 12 is composed of metal foil and braided metal wire, which can reduce electromagnetic interference and improve the transmission stability of the cable.

[0028] Example 3: Based on Example 1 and Example 2, Figure 2 As shown, the material of the first insulating layer 14 is polyethylene material, which has excellent insulating properties, ensuring the safe operation of the cable under high voltage. The material of the second insulating layer 15 is cross-linked polyethylene material, which further enhances the insulation performance of the cable and has good heat resistance and mechanical strength. The material of the third insulating layer 16 is fluoroplastic material, which not only has certain insulating properties, but also has excellent chemical corrosion resistance and high temperature resistance, ensuring the stable operation of the cable in harsh environments. By setting the sheath layer 13, the sheath layer 13 can protect the cable from the influence of the external environment and extend the service life of the cable.

[0029] The working principle of the present invention is mainly based on the synergistic effect of the conductor, composite insulation layer, shielding layer and sheath layer. The conductor 10 is the core part of the cable and is responsible for transmitting current. The composite insulation layer 11 is composed of multiple layers of insulation layers made of different materials, which ensures the safety and reliability of the cable during high voltage and high current transmission. The first insulation layer 14 is made of polyethylene material, which has excellent insulation performance and can effectively prevent current leakage. The second insulation layer 15 is made of cross-linked polyethylene material, which further improves the heat resistance and mechanical strength of the cable. The third insulation layer 16 is made of fluoroplastic material, which not only has good insulation performance, but also can resist chemical corrosion and high temperature environment, ensuring the stable operation of the cable under harsh conditions. The shielding layer 12 is composed of metal foil and braided metal wire, which can effectively shield electromagnetic interference and reduce the impact of electromagnetic radiation on the cable. The transmission performance is affected, thereby improving the transmission stability of the cable. The sheath layer 13 is made of polyvinyl chloride material, which can protect the cable from the influence of the external environment, such as mechanical damage, chemical corrosion, ultraviolet radiation, etc., and extend the service life of the cable. In actual applications, the conductor 10 of the cable passes through the multi-layer insulation material of the composite insulation layer 11 to ensure the safety and reliability during high voltage and large current transmission. The shielding layer 12 effectively reduces electromagnetic interference and improves the transmission stability of the cable. The sheath layer 13 provides additional protection for the cable, enabling it to adapt to various complex and harsh external environments. In summary, the utility model achieves the comprehensive advantages of high insulation performance, high transmission stability and long service life by optimizing the internal structure and material selection of the cable, and meets the high requirements of modern power systems for cable performance.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A high-insulation cable comprising a conductor (10), characterized in that: The outer wall of the conductor (10) is provided with a composite insulating layer (11), a shielding layer (12) is fixedly installed on the outer wall of the composite insulating layer (11), a sheath layer (13) is fixedly installed on the outer wall of the shielding layer (12), the composite insulating layer (11) includes a first insulating layer (14), and the inner wall of the first insulating layer (14) is fixedly connected to the outer wall of the conductor (10), a second insulating layer (15) is fixedly installed on the outer wall of the first insulating layer (14), a third insulating layer (16) is fixedly installed on the outer wall of the second insulating layer (15), and the outer wall of the third insulating layer (16) is fixedly connected to the inner wall of the shielding layer (12).

2. The high-insulation cable according to claim 1, characterized in that: The conductor (10) is made of copper metal.

3. The high-insulation cable according to claim 1, characterized in that: The shielding layer (12) is composed of metal foil and braided metal wires.

4. The high-insulation cable according to claim 1, characterized in that: The material of the sheath layer (13) is polyvinyl chloride.

5. The high-insulation cable according to claim 1, characterized in that: The first insulating layer (14) is made of polyethylene.

6. The high-insulation cable according to claim 1, characterized in that: The second insulating layer (15) is made of cross-linked polyethylene.

7. The high-insulation cable according to claim 1, characterized in that: The third insulating layer (16) is made of fluoroplastic material.

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