A waterproof, wear-resistant and high-voltage 10 kV cable

Abstract

The present invention relates to the technical field of cables, and provides a waterproof and wear-resistant high-voltage 10 kV cable, which includes a cable main body. The cable main body includes an inner core, a waterproof layer, and an outer skin. The waterproof layer wraps the inner core, and the outer skin is coated on the outside of the waterproof layer. There are multiple support bars, and the multiple support bars are arranged in a linear array on the outer skin. The support bars are parallel to the axis of the cable main body. The support bars are used to abut against the laying surface of the cable main body, and a deformation gap is formed between two adjacent support bars. After the cable main body is wound into a coil, the deformation gap becomes larger or smaller. Through the above technical solution, the problem that the outer layer of the high-voltage cable in the related art in the prior art is easily worn during the laying process, affecting the waterproof performance, is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and specifically, to a waterproof and wear-resistant high-voltage 10 kV cable. Background Art

[0002] With the continuous development and upgrading of the power system, cables with a voltage level of 10 kV play an extremely important role in the field of power transmission and distribution. In many application scenarios, such as the laying of underground cables in urban power grids, power supply in complex environments of industrial factories, and power transmission in special areas such as coastal regions, higher performance requirements are imposed on the cables.

[0003] During the laying and installation process of the cable, it will inevitably be affected by various mechanical external forces. For example, during cable laying, there is friction with the ground, pipelines, etc., and during operation, vibrations, squeezes, etc. may cause the outer layer of the cable to be easily worn and scratched. Once the outer layer is damaged, it will not only reduce the overall mechanical strength of the cable, but also expose the internal structure of the cable, and the waterproof performance of the cable will also be affected, accelerating the aging and damage of the cable, shortening the service life of the cable, increasing the power operation and maintenance costs, and causing great interference and losses to production operations. Summary of the Invention

[0004] The present invention provides a waterproof and wear-resistant high-voltage 10 kV cable, which solves the problem that the outer layer of the high-voltage cable in the related art is easily worn during the laying process, affecting the waterproof performance.

[0005] The technical solution of the present invention is as follows:

[0006] A waterproof and wear-resistant high-voltage 10 kV cable, comprising:

[0007] A cable main body, the cable main body includes an inner core, a waterproof layer and an outer skin, the waterproof layer wraps the inner core, and the outer skin covers the outside of the waterproof layer;

[0008] Support bars, there are a plurality of the support bars, and the plurality of support bars are arranged in a linear array on the outer skin, the support bars are parallel to the axis of the cable main body, the support bars are used to abut against the laying surface of the cable main body, and a deformation gap is formed between adjacent two support bars. After the cable main body is wound into a coil, the deformation gap becomes larger or smaller.

[0009] Optionally, a plurality of the support bars arranged in a linear array are a group, and several groups of the support bars are circumferentially spaced on the outer skin.

[0010] Optionally, there are two sets of the support bars, and the two sets of support bars are arranged in parallel at intervals on the outer cortex, and a guiding space is formed between the two sets of support bars. After a guiding rod is placed on the laying surface, the guiding space is used to accommodate the guiding rod.

[0011] Optionally, the deformation gaps of the two sets of support bars are staggered along the axis of the cable body.

[0012] Optionally, the deformation gaps of the two sets of support bars are distributed oppositely along the axis of the cable body.

[0013] Optionally, it further includes:

[0014] Support rings, the support rings are arc-shaped, the inner walls of the support rings are in contact with the outer cortex, and the two ends of the support rings are respectively clamped with the two support bars. There are multiple support rings, and the multiple support rings are arranged in an array along the axis of the cable body.

[0015] Optionally, it further includes:

[0016] Sleeve rings, the sleeve rings are arranged at both ends of the support ring, and the support ring is clamped with the support bar through the sleeve ring.

[0017] Optionally, it further includes:

[0018] Spacer bars, there are multiple spacer bars, the multiple spacer bars are arranged in a linear array on the outer cortex, a limiting space is formed between adjacent two spacer bars, the support ring is located in the limiting space, and the spacer bars are integrally formed with the outer cortex;

[0019] The spacer bars and the guiding space are respectively distributed on opposite sides of the outer cortex.

[0020] Optionally, the support bar has a support part and a transition part. The support part is a partial cylindrical shape with a central angle greater than 180 degrees. The transition part is smoothly transitioned with the outer cortex and the support part. The support parts of the two sets of support bars are close to each other, a clamping space is formed between the support part and the outer cortex, and one end of the sleeve ring away from the support ring is located in the clamping space.

[0021] Optionally, after two cable bodies are connected together to form a joint, a protective shell is sleeved on the joint, and it further includes:

[0022] Sealing ring and connecting rings. Two of the connecting rings are respectively arranged at both ends of the sealing ring. The two connecting rings and one sealing ring form a seal. The two connecting rings are used for clamping with two support bars. The seal is used for being arranged at both ends of the cable body and abutting against the inner wall of the protective shell. One end of the two connecting rings close to each other has a sealing head, and the sealing head is used for filling the guiding space.

[0023] The working principle and beneficial effects of the present invention are as follows:

[0024] In the present invention, in order to solve the problem that the outer layer of high-voltage cables in related technologies is easily worn during laying, affecting the waterproof performance, the waterproof layer is made of a high-performance rubber material and tightly wraps the inner core through an extrusion process, effectively preventing moisture intrusion. The outer skin is made of wear-resistant polyvinyl chloride material and is coated on the outside of the waterproof layer by injection molding. At the same time, a plurality of support bars are arranged on the outer skin. During the cable production process, the support bars can be fixed to the outer skin through a hot melt bonding process or the outer skin and the support bars can be integrally formed. During the laying process of the cable body, the support bars are in contact with the laying surface, avoiding damage to the outer skin during laying. The outer skin can further protect the waterproof layer, thereby improving the waterproof and wear-resistant performance of the cable body. When the cable is wound into a roll, the deformation gap between adjacent support bars will increase or decrease according to the tightness of the winding, adapting to bending deformation and avoiding affecting the winding operation of the cable body after the support bars are set. At the same time, during the laying process, when the cable body bends, due to the existence of the deformation gap, the bending stress of the cable body can also be reduced, protecting the integrity of the internal structure of the cable, extending the service life of the cable, and also playing a certain supporting and buffering role during cable laying, reducing the direct impact of external forces on the cable.

[0025] The structural design of the inner core, waterproof layer, outer skin and support bars respectively guarantees the electrical conductivity, waterproofness and wear resistance of the cable from the inside to the outside, enabling the cable body to reduce the friction with the laying surface during laying and enabling the cable to stably transmit high-voltage electricity in a variety of complex environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The following will further illustrate the above characteristics, technical features, advantages and their implementation manners of the present invention in a clear and understandable manner in combination with the drawings of the preferred embodiments.

[0027] Figure 1 is a structural schematic diagram of the present invention;

[0028] Figure 2 is a structural schematic diagram of the present invention from another angle;

[0029] Figure 3 is a cross-sectional structural schematic diagram of several groups of support bars of the present invention;

[0030] Figure 4 This is a schematic cross-sectional structure diagram of two groups of support bars of the present invention;

[0031] Figure 5 This is a schematic diagram of the staggered distribution structure of the deformation gaps of the present invention;

[0032] Figure 6 This is a schematic diagram of the relative distribution structure of the deformation gaps of the present invention;

[0033] Figure 7 This is a schematic diagram of the matching structure of the seal and the protective shell of the present invention;

[0034] Figure 8 This is a schematic diagram of a partial structure of the present invention;

[0035] Figure 9 This is the present invention Figure 1 The enlarged structure diagram of part A in the present invention.

[0036] In the figure: 1. Cable main body, 11. Inner core, 12. Waterproof layer, 13. Outer skin, 2. Support bar, 201. Deformation gap, 202. Guide space, 3. Guide rod, 4. Support ring, 5. Sleeve ring, 6. Spacer bar, 61. Limit space, 21. Support part, 22. Transition part, 211. Clamping space, 71. Sealing ring, 72. Connecting ring, 7. Seal, 721. Sealing head, 8. Protective shell. Detailed implementation manners

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings, and other implementation manners can also be obtained.

[0038] To make the drawings concise, only the parts related to the invention are schematically shown in each drawing, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, parts with the same structure or function are only schematically shown for one of them, or only one of them is marked. In this article, "one" not only means "only this one", but also means "more than one" situation, and "several" includes "two" and "more than two".

[0039] In this text, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "linkage" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In addition, in the description of the present application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0041] Referring to Figures 1 - 2 , for the first embodiment of the present invention, a waterproof, wear-resistant and high-voltage 10 kV cable is proposed, which includes a cable main body 1. The cable main body 1 includes an inner core 11, a waterproof layer 12 and an outer skin 13. The waterproof layer 12 wraps the inner core 11, and the outer skin 13 covers the outside of the waterproof layer 12; there are a plurality of support bars 2, and the plurality of support bars 2 are arranged in a linear array on the outer skin 13. The support bars 2 are parallel to the axis of the cable main body 1. The support bars 2 are used to abut against the laying surface of the cable main body 1. A deformation gap 201 is formed between two adjacent support bars 2. After the cable main body 1 is wound into a coil, the deformation gap 201 becomes larger or smaller.

[0042] In this embodiment, in order to solve the problem that the outer layer of the high-voltage cable in the related art is easily worn during the laying process, which affects the waterproof performance, the waterproof layer 12 is made of a high-performance rubber material and tightly wraps the inner core 11 through an extrusion process, effectively preventing moisture from invading. The outer skin 13 is made of wear-resistant polyvinyl chloride material and is covered on the outside of the waterproof layer 12 by injection molding. At the same time, a plurality of support bars 2 are arranged on the outer skin 13. During the cable production process, the support bars 2 can be fixed to the outer skin 13 through a hot melt bonding process or the outer skin 13 and the support bars 2 can be integrally formed. During the laying process of the cable main body 1, by contacting the laying surface through the support bars 2, damage to the outer skin 13 during the laying process is avoided. The outer skin 13 can further protect the waterproof layer 12, thereby improving the waterproof and wear-resistant performance of the cable main body 1. When the cable is wound into a coil, the deformation gap 201 between two adjacent support bars 2 will become larger or smaller according to the tightness of the winding, adapting to the bending deformation and avoiding affecting the coiling operation of the cable main body 1 after the support bars 2 are provided. At the same time, during the laying process, when the cable main body 1 is bent, due to the existence of the deformation gap 201, the bending stress of the cable main body 1 can also be reduced, protecting the integrity of the internal structure of the cable, extending the service life of the cable, and also playing a certain supporting and buffering role during the cable laying, reducing the direct impact of external forces on the cable.

[0043] The structural design of the inner core 11, the waterproof layer 12, the outer skin layer 13 and the support strip 2 ensures the electrical conductivity, waterproofness and wear resistance of the cable from the inside to the outside, enabling the cable body 1 to reduce the friction with the laying surface during laying and enabling the cable to stably transmit high-voltage electricity in a variety of complex environments.

[0044] Furthermore, referring to Figure 3 , multiple support strips 2 arranged in a linear array are grouped together, and several groups of support strips 2 are circumferentially spaced on the outer skin layer 13.

[0045] In this embodiment, multiple groups of support strips 2 are circumferentially spaced, enabling the cable to be supported and protected more evenly in all directions. Whether it is the laying movement in the horizontal direction or the possible lateral extrusion and other situations, the external force can be effectively dispersed, reducing the risk of damage caused by excessive local stress on the cable, further improving the overall mechanical stability and reliability of the cable, enhancing the wear resistance and impact resistance of the cable body 1. During the production process of the cable body 1, after the support strip 2 is integrally injection-molded with the outer skin sleeve, a deformation gap 201 can be opened on the support strip 2 through a cutting device.

[0046] Furthermore, referring to Figure 4 , there are two groups of support strips 2, and the two groups of support strips 2 are parallelly and spacedly distributed on the outer skin layer 13, and a guiding space 202 is formed between the two groups of support strips 2. After a guiding rod 3 is placed on the laying surface, the guiding space 202 is used to accommodate the guiding rod 3.

[0047] In this embodiment, at the cable laying site, when it is necessary to lay the cable along a specific direction and guiding assistance is required, a guiding rod 3 adapted to the guiding space 202 between the two groups of support strips 2 is placed on the laying surface. The cable body 1 is laid along the guiding rod 3, and the cable stably moves on the guiding rod 3 relying on the guiding space 202 formed by the two groups of support strips 2, ensuring that the laying direction is accurate and stable.

[0048] The guiding space 202 formed by the two groups of support strips 2 provides an accurate guiding function for cable laying, enabling the cable to follow a predetermined path during laying. Especially in long-distance or complex terrain laying projects, it can effectively improve the laying efficiency and quality, and reduce subsequent problems caused by laying deviations. During the laying process, through the design of the two groups of support strips 2, the friction between the laying surface and the outer skin layer 13 is reduced, and the guiding function is cleverly realized by using the support strips 2, simplifying the auxiliary equipment and operation process of cable laying.

[0049] Furthermore, referring to Figure 5 , the deformation gaps 201 of the two groups of support strips 2 are staggered along the axis of the cable body 1.

[0050] In this embodiment, the deformation gaps 201 of the two groups of support bars 2 are staggered along the axis of the cable body 1. During the bending process of the cable, such as when the cable bypasses a pipeline or turns in a cable well, the bending deformations at different positions are coordinated with each other, avoiding stress concentration in a certain area, making the bending deformation of the cable more uniform and the stress distribution more reasonable. The bending resistance performance of the cable is effectively improved. Whether in the case of frequent small-angle bending or one-time large-angle bending, it can reduce the damage to the internal structure of the cable caused by uneven stress, and ensure the long-term stable operation of the cable body 1.

[0051] Further, referring to Figure 6 , the deformation gaps 201 of the two groups of support bars 2 are distributed relatively along the axis of the cable body 1.

[0052] In this embodiment, the deformation gaps 201 of the two groups of support bars 2 are distributed relatively along the axis of the cable body 1. The relatively distributed deformation gaps 201 are beneficial to the cooperation of the cable with the on-site installation and fixing structure during laying, improving the convenience and stability of cable installation. In some occasions where the cable needs to be installed and disassembled frequently, such as in temporary power supply facilities or the connection of movable power equipment, it can significantly shorten the installation time and improve work efficiency.

[0053] Further, referring to Figures 1 - 2 , it further includes a support ring 4. The support ring 4 is arc-shaped. The inner wall of the support ring 4 abuts against the outer skin 13. The two ends of the support ring 4 are respectively clamped with the two support bars 2. There are multiple support rings 4, and the multiple support rings 4 are arranged in an array along the axis of the cable body 1.

[0054] In this embodiment, the radian of the inner wall of the support ring 4 matches the radian of the outer skin 13. On the cable assembly production line, the support rings 4 are installed on the outer skin 13 one by one, so that its inner wall closely abuts against the outer skin 13. The two ends of the support ring 4 are respectively clamped with the two support bars 2. For example, by setting elastic buckles at both ends of the support ring 4, the clamping is realized in cooperation with the deformation gap 201. The multiple support rings 4 are arranged in an array along the axis of the cable body 1, enhancing the radial compressive resistance of the cable. At the same time, during the laying process, the cable body 1 is generally conveyed between rollers, and the rollers will cause greater extrusion to the cable body 1. By setting multiple support rings 4 distributed at intervals, it is beneficial to improve the friction force on the surface of the cable body 1, making the conveying length of the cable body 1 more accurate. At the same time, by counting the support rings 4, the construction personnel can also judge the conveying length of the cable body 1, making the construction more convenient.

[0055] The setting of the support ring 4 greatly enhances the radial compressive performance of the cable. In the case where the cable may be squeezed by heavy objects or is buried underground and subjected to soil pressure, etc., it can effectively prevent the cable from deforming, protect the internal structure, and make the cable body 1 applicable to a variety of harsh environments.

[0056] Further, refer to Figures 1 - 2 , and also includes a ring 5, which is arranged at both ends of the support ring 4, and the support ring 4 is clamped with the support bar 2 through the ring 5.

[0057] In this embodiment, the collar 5 has certain flexibility and wear resistance, and can be made of rubber material. The collar 5 and the support ring 4 can be integrally formed. During the cable assembly process, the support ring 4 with the collar 5 is clamped with the support bar 2. After the collar 5 is opened, it can be sleeved on the support bar 2, making the installation of the support ring 4 convenient and quick.

[0058] Further, refer to Figure 2 , and also includes a spacer bar 6, which has a plurality of spacer bars 6, and the plurality of spacer bars 6 are arranged in a linear array on the outer skin 13, and a limiting space 61 is formed between two adjacent spacer bars 6, and the support ring 4 is located in the limiting space 61, and the spacer bar 6 and the outer skin 13 are integrally formed; the spacer bar 6 and the guide space 202 are respectively distributed on the opposite sides of the outer skin 13.

[0059] In this embodiment, the spacer bar 6 is made of the same polyvinyl chloride material as the outer skin layer 13, and is integrally formed with the outer skin layer 13 through an extrusion process, thereby improving the stability and sealing of the overall cable structure. After the molding is completed, a limiting space 61 is cut on the spacer bar 6. When assembling the support ring 4, the support ring 4 is accurately placed in the limiting space 61 to limit the displacement of the support ring 4 along the axial direction of the outer sheath. At the same time, the spacer bar 6 and the guide space 202 are respectively distributed on the opposite sides of the outer skin layer 13, and the two opposite positions of the support bar 2 are fixed at the same time to avoid the support ring 4 from deviating or shaking due to frequent sliding friction between the friction force and the outer sheath during the laying process of the cable body 1.

[0060] Further, refer to Figure 1 , Figure 4 , Figure 9 The support bar 2 has a support portion 21 and a transition portion 22. The support portion 21 is a partial cylinder with a central angle greater than 180 degrees. The transition portion 22 smoothly transitions with the outer skin 13 and the support portion 21. The support portions 21 of the two groups of support bars 2 are close to each other, and a clamping space 211 is formed between the support portion 21 and the outer skin 13. The end of the ring 5 away from the support ring 4 is located in the clamping space 211.

[0061] In this embodiment, the support portion 21 of the support bar 2 is a partial cylinder with a central angle greater than 180 degrees, for example, a central angle of 200 degrees, and the support portion 21 and the transition portion 22 are integrally formed by injection molding. The end of the collar 5 away from the support ring 4 can be inserted into the clamping space 211 to achieve a firm clamping connection.

[0062] The shape of the supporting part 21 is reasonable. The cooperation of the two groups of support bars 2 realizes contact with the laying surface with a small area while ensuring stable support. It also provides a stable and reliable clamping space 211 for the collar 5, making the connection between the support ring 4 and the support bar 2 closer and more stable. The smooth transition design of the transition part 22 avoids stress concentration at the connection part, reduces the risk of component damage caused by external forces, improves the reliability and durability of the overall cable structure, and ensures the safe and stable operation of the cable during long-term operation.

[0063] Furthermore, referring to Figures 7 - 8 , after the two cable bodies 1 are connected together to form a joint, a protective shell 8 is sleeved on the joint. It also includes a sealing ring 71 and a connecting ring 72. The two connecting rings 72 are respectively arranged at both ends of the sealing ring 71. The two connecting rings 72 and a sealing ring 71 form a seal 7. The two connecting rings 72 are used to be clamped with the two support bars 2. The seal 7 is used to be abutted against the inner wall of the protective shell 8 after being arranged at both ends of the cable body 1. The ends of the two connecting rings 72 close to each other have a sealing head 721, and the sealing head 721 is used to fill the guiding space 202.

[0064] In this embodiment, when the two cable bodies 1 need to be connected together to form a joint, a protective shell will be installed at the joint. When connecting the cables, the seal 7 can be installed on the support bar 2 at this time to form a seal between the outer skin layer 13 and the protective shell. The seal 7 is composed of a sealing ring 71 and two connecting rings 72, and its structure is the same as the cooperation form of the support ring 4 and the collar 5. Since the two cable bodies 1 are joined together at the joint and the diameter is larger than that of the cable body 1, the shape of the protective shell is usually two opposite cones, as Figure 7 shown is the structure of the protective shell close to one side of the cable body 1. Therefore, the thickness of the sealing ring 71 is greater than that of the support ring 4. At the same time, considering the existence of the guiding space 202, a sealing head is provided on the connecting ring 72, and the sealing head fills the guiding space 202 to achieve sealing.

[0065] The design of the seal 7 effectively solves the waterproof and sealing problems at the cable joint, preventing impurities such as moisture and dust from entering the joint interior and affecting the electrical connection performance. The design of the seal 7 and the sealing head filling the guiding space 202 not only enhances the sealing performance at the joint, but also utilizes the original structural characteristics of the cable, making the seal at the joint more comprehensive and reliable, reducing the risk of electrical failures caused by poor joint sealing, improving the overall reliability and safety after the cable connection, and ensuring the continuity of power transmission.

[0066] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A waterproof, wear-resistant and high-voltage 10 kV cable, characterized in that, Including: A cable body (1), the cable body (1) includes an inner core (11), a waterproof layer (12) and an outer skin layer (13), the waterproof layer (12) wraps the inner core (11), and the outer skin layer (13) is coated on the outside of the waterproof layer (12); Support bars (2), there are multiple support bars (2), the multiple support bars (2) are arranged in a linear array on the outer skin layer (13), the support bars (2) are parallel to the axis of the cable body (1), the support bars (2) are used to abut against the laying surface of the cable body (1), a deformation gap (201) is formed between two adjacent support bars (2), after the cable body (1) is wound into a coil, the deformation gap (201) becomes larger or smaller; A group of multiple support bars (2) arranged in a linear array, several groups of support bars (2) are circumferentially spaced on the outer skin layer (13); a guiding space (202) is formed between two groups of support bars (2), after a guiding rod (3) is placed on the laying surface, the guiding space (202) is used to accommodate the guiding rod (3); After two cable bodies (1) are connected together to form a joint, a protective shell (8) is sleeved on the joint, and further includes: A sealing ring (71) and a connecting ring (72), the two connecting rings (72) are respectively arranged at both ends of the sealing ring (71), the two connecting rings (72) and one sealing ring (71) form a sealing member (7), the two connecting rings (72) are used to be clamped with the two support bars (2), the sealing member (7) is used to be arranged at both ends of the cable body (1) and abut against the inner wall of the protective shell (8), the ends of the two connecting rings (72) close to each other have sealing heads (721), and the sealing heads (721) are used to fill the guiding space (202).

2. The waterproof, wear-resistant and high-voltage 10 kV cable according to claim 1, wherein, There are two groups of the support bars (2), and the two groups of support bars (2) are parallel and spaced on the outer skin layer (13).

3. The waterproof, wear-resistant and high-voltage 10 kV cable according to claim 2, characterized in that The deformation gaps (201) of the two groups of support bars (2) are staggered along the axis of the cable body (1).

4. A waterproof, wear-resistant and high-voltage 10 kV cable according to claim 2, characterized in that, The deformation gaps (201) of the two groups of support bars (2) are relatively distributed along the axis of the cable body (1).

5. A waterproof, wear-resistant and high-voltage 10 kV cable according to claim 4, characterized in that, Further including: Support rings (4), the support rings (4) are arc-shaped, the inner walls of the support rings (4) abut against the outer skin layer (13), both ends of the support rings (4) are respectively clamped with the two support bars (2), there are multiple support rings (4), and the multiple support rings (4) are arranged in an array along the axis of the cable body (1).

6. The waterproof, wear-resistant and high-voltage 10 kV cable according to claim 5, characterized in that, Further including: Sleeve rings (5), the sleeve rings (5) are arranged at both ends of the support rings (4), and the support rings (4) are clamped with the support bars (2) through the sleeve rings (5).

7. A waterproof, wear-resistant and high-voltage 10 kV cable according to claim 6, characterized in that, Further including: Spacer bars (6), there are multiple of the spacer bars (6), the multiple spacer bars (6) are arranged in a linear array on the outer skin layer (13), a limiting space (61) is formed between two adjacent spacer bars (6), the support ring (4) is located in the limiting space (61), and the spacer bars (6) are integrally formed with the outer skin layer (13); The spacer bars (6) and the guiding space (202) are respectively distributed on opposite sides of the outer skin layer (13).

8. A waterproof, wear-resistant and high-voltage 10 kV cable according to claim 6, characterized in that, The support bar (2) has a support portion (21) and a transition portion (22), the support portion (21) is a partial cylindrical shape with a central angle greater than 180 degrees, the transition portion (22) smoothly transitions with the outer skin layer (13) and the support portion (21), the support portions (21) of the two groups of support bars (2) are close to each other, a clamping space (211) is formed between the support portion (21) and the outer skin layer (13), and one end of the collar (5) away from the support ring (4) is located in the clamping space (211).

Images