Waterproof wear-resistant high-voltage 10kV cable

Abstract

The invention relates to the technical field of cables, and provides a waterproof wear-resistant high-voltage 10kV cable, which comprises a cable main body, the cable main body comprises an inner core, a waterproof layer and an outer skin layer, the waterproof layer wraps the inner core, and the outer skin layer wraps the outer side of the waterproof layer; the supporting strips are arranged on the outer skin layer along a linear array, the supporting strips are parallel to the axis of the cable main body, the supporting strips are used for abutting against the laying surface of the cable main body, a deformation gap is formed between every two adjacent supporting strips, and after the cable main body is wound into a coil, the deformation gaps become larger or smaller. According to the technical scheme, the problem that the waterproof performance is affected due to the fact that the outer layer of the high-voltage cable is prone to abrasion in the laying process in the prior art is solved.

Description

Technical Field

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

[0002] With the continuous development and upgrading of the power system, 10kV voltage-level cables occupy an extremely important position in the field of power transmission and distribution. In many application scenarios, such as underground cable laying in urban power grids, power supply in complex environments of industrial plants, and power transmission in special areas such as coastal areas, higher and higher performance requirements are placed on cables.

[0003] During the laying and installation process, the cable will inevitably be affected by various mechanical external forces, such as friction with the ground, pipes, etc. during cable laying, and vibration and extrusion during operation, which 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, affect the waterproof performance of the cable, accelerate the aging and damage of the cable, shorten the service life of the cable, and not only increase the cost of power operation and maintenance, but also cause great interference and loss to production operations. Summary of the invention

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

[0005] The technical solution of the present invention is as follows: A waterproof and wear-resistant high-voltage 10kV cable, comprising: A cable body, the cable body comprising an inner core, a waterproof layer and an outer skin layer, the waterproof layer wraps the inner core, and the outer skin layer is wrapped around the outer side of the waterproof layer; A plurality of support bars are provided on the outer skin along a linear array, the support bars are parallel to the axis of the cable body, the support bars are used to abut against the laying surface of the cable body, and a deformation gap is formed between two adjacent support bars. After the cable body is wound into a roll, the deformation gap becomes larger or smaller.

[0006] Optionally, a plurality of the support bars arranged along a linear array form a group, and a plurality of groups of the support bars are circumferentially spaced apart and arranged on the outer skin layer.

[0007] Optionally, there are two groups of support bars, and the two groups of support bars are distributed in parallel and at intervals on the outer skin layer, and a guide space is formed between the two groups of support bars. After the guide rod is placed on the paving surface, the guide space is used to accommodate the guide rod.

[0008] Optionally, the deformation gaps of the two groups of support bars are staggeredly distributed along the axis of the cable body.

[0009] Optionally, the deformation gaps of the two groups of support bars are relatively distributed along the axis of the cable body.

[0010] Optionally, it also includes: The support ring is arc-shaped, the inner wall of the support ring is in contact with the outer skin layer, the two ends of the support ring are respectively clamped with the two support strips, and there are multiple support rings, which are distributed in an array along the axis of the cable body.

[0011] Optionally, it also includes: 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 rings.

[0012] Optionally, it also includes: A spacer bar, wherein the spacer bar has a plurality of spacers, and the plurality of spacers are arranged in a linear array on the outer skin layer, a limiting space is formed between two adjacent spacers, the support ring is located in the limiting space, and the spacer bar is integrally formed with the outer skin layer; The spacer strips and the guide spaces are respectively distributed on two opposite sides of the outer skin layer.

[0013] Optionally, the support bar has a support portion and a transition portion, the support portion is a partial cylinder with a central angle greater than 180 degrees, the transition portion smoothly transitions with the outer skin and the support portion, the support portions of the two groups of support bars are close to each other, a clamping space is formed between the support portion and the outer skin, and the end of the ring away from the support ring is located in the clamping space.

[0014] Optionally, the two cable bodies are connected together to form a joint, the joint sleeve is provided with a protective shell, and further comprises: A sealing ring and a connecting ring, wherein the two connecting rings are respectively arranged at the two ends of the sealing ring, the two connecting rings and one sealing ring constitute a sealing member, the two connecting rings are used to be clamped with the two supporting strips, the sealing member is used to be arranged at the two ends of the cable body and abut against the inner wall of the protective shell, and one end of the two connecting rings close to each other has a sealing head, and the sealing head is used to fill the guide space.

[0015] The working principle and beneficial effects of the present invention are: In the present invention, in order to solve the problem that the outer layer of the high-voltage cable in the related art is easily affected by wear and tear during the laying process, the waterproof layer is made of high-performance rubber material, and the inner core is tightly wrapped by an extrusion process to effectively prevent moisture from intruding. The outer skin layer is made of wear-resistant polyvinyl chloride material, which 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 layer. During the cable production process, the support bar and the outer skin layer can be fixed by a hot melt bonding process or the outer skin layer and the support bar can be integrally formed. During the laying process of the cable body, the outer skin layer is prevented from being damaged during the laying process by the contact between the support bar and the laying surface, and the outer skin layer 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 two adjacent support bars will increase or decrease according to the tightness of the winding, adapt to the bending deformation, and avoid affecting the rolling operation of the cable body after the support bar is set. At the same time, during the laying process, when the cable body bends, the existence of the deformation gap can also reduce the bending stress of the cable body, protect the integrity of the internal structure of the cable, and extend the service life of the cable. At the same time, it can also play a certain supporting and buffering role when the cable is laid, reducing the direct impact of external force on the cable.

[0016] The structural design of the inner core, waterproof layer, outer skin and support strips ensures the electrical conductivity, waterproofness and wear resistance of the cable from the inside to the outside, which reduces the friction between the cable body and the laying surface during laying while enabling the cable to stably transmit high-voltage electricity in a variety of complex environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0018] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a structural schematic diagram of another angle of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of several groups of support bars of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of two groups of support bars of the present invention; Figure 5 This is a schematic diagram of the staggered distribution structure of the deformation gap of the present invention; Figure 6 This is a schematic diagram of the relative distribution structure of the deformation gap of the present invention; Figure 7 This is a schematic diagram of the matching structure of the sealing member and the protective shell of the present invention; Figure 8 It is a schematic diagram of the local structure of the present invention; Fig. 9For the present invention Figure 1 Enlarged structural diagram at A in the middle.

[0019] In the figure: 1. cable body, 11. inner core, 12. waterproof layer, 13. outer skin layer, 2. support bar, 201. deformation gap, 202. guide space, 3. guide rod, 4. support ring, 5. sleeve ring, 6. spacer bar, 61. limiting 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 DESCRIPTION In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0020] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0021] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0023] Reference Figure 1~Figure 2, which is the first embodiment of the present invention, proposes a waterproof and wear-resistant high-voltage 10kV cable, 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; there are multiple support bars 2, and the multiple support bars 2 are arranged on the outer skin layer 13 along a linear array. The support bars 2 are parallel to the axis of the cable body 1, and 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 roll, the deformation gap 201 becomes larger or smaller.

[0024] In this embodiment, in order to solve the problem that the outer layer of the high-voltage cable in the related art is easily affected by wear and tear during the laying process, the waterproof layer 12 is made of high-performance rubber material, and the inner core 11 is tightly wrapped by an extrusion process to effectively prevent moisture from intruding. The outer skin layer 13 is made of wear-resistant polyvinyl chloride material and is coated 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 layer 13. During the cable production process, the support bar 2 and the outer skin layer 13 can be fixed by a hot melt bonding process or the outer skin layer 13 and the support bar 2 can be integrally formed. During the laying process of the cable body 1, the outer skin layer 13 is prevented from being damaged during the laying process by the contact between the support bar 2 and the laying surface, and the outer skin layer 13 can further protect the waterproof layer 12, thereby improving the waterproof and wear-resistant performance of the cable body 1. When the cable is wound into a roll, the deformation gap 201 between two adjacent support bars 2 will increase or decrease according to the tightness of the winding, adapt to the bending deformation, and avoid affecting the rolling operation of the cable body 1 after the support bar 2 is set. At the same time, during the laying process, when the cable body 1 bends, the existence of the deformation gap 201 can also reduce the bending stress of the cable body 1, protect the integrity of the internal structure of the cable, and extend the service life of the cable. At the same time, it can also play a certain supporting and buffering role when the cable is laid, reducing the direct impact of external force on the cable.

[0025] The structural design of the inner core 11, the waterproof layer 12, the outer skin layer 13 and the support bar 2 ensures the electrical conductivity, waterproofness and wear resistance of the cable from the inside to the outside, so that the cable body 1 can reduce the friction between the laying surface during laying while enabling the cable to stably transmit high-voltage electricity in a variety of complex environments.

[0026] Further, refer to Figure 3 A plurality of support bars 2 arranged along a straight line form a group, and a plurality of groups of support bars 2 are arranged on the outer skin layer 13 at circumferential intervals.

[0027] In this embodiment, multiple groups of support bars 2 are arranged at intervals around the circumference, so that the cable can be supported and protected relatively evenly in all directions. Whether it is in the horizontal laying and movement, or in the case of lateral extrusion, etc., it can effectively disperse the external force, reduce the risk of damage caused by excessive local force on the cable, further improve the overall mechanical stability and reliability of the cable, and enhance the wear resistance and impact resistance of the cable body 1. In the production process of the cable body 1, the support bar 2 can be integrally injection-molded with the outer sheath, and then a deformation gap 201 can be opened on the support bar 2 through a cutting device.

[0028] Further, refer to Figure 4 There are two groups of support bars 2, and the two groups of support bars 2 are distributed in parallel and at intervals on the outer skin layer 13. A guide space 202 is formed between the two groups of support bars 2. After the guide rod 3 is placed on the paving surface, the guide space 202 is used to accommodate the guide rod 3.

[0029] In this embodiment, at the cable laying site, when the cable needs to be laid along a specific direction and needs guidance assistance, a guide rod 3 is placed on the laying surface to match the guide space 202 between the two groups of support bars 2. The cable body 1 is laid along the guide rod 3, and the cable moves stably on the guide rod 3 by relying on the guide space 202 formed by the two groups of support bars 2, ensuring that the laying direction is accurate and stable.

[0030] The guide space 202 formed by the two groups of support strips 2 provides a precise guide function for cable laying, so that the cable can be laid along a predetermined path during laying, which can effectively improve laying efficiency and quality, and reduce subsequent problems caused by laying deviations, especially in long-distance or complex terrain laying projects. During the laying process, the design of the two groups of support strips 2 not only reduces the friction of the laying surface on the outer skin layer 13, but also cleverly utilizes the support strips 2 to achieve the guide function, simplifying the auxiliary equipment and operation process of cable laying.

[0031] Further, refer to Figure 5 The deformation gaps 201 of the two groups of support bars 2 are staggeredly distributed along the axis of the cable body 1 .

[0032] 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 to avoid stress concentration in a certain area, making the bending deformation of the cable more uniform and the stress distribution more reasonable. The bending resistance of the cable is effectively improved. Whether it is frequent bending at a small angle or one-time bending at a large angle, the damage to the internal structure of the cable caused by uneven force can be reduced, ensuring the long-term stable operation of the cable body 1.

[0033] Further, refer to Figure 6The deformation gaps 201 of the two groups of support bars 2 are relatively distributed along the axis of the cable body 1 .

[0034] In this embodiment, the deformation gaps 201 of the two groups of support bars 2 are relatively distributed along the axis of the cable body 1. The relatively distributed deformation gaps 201 are conducive to the coordination of the cable with the installation and fixing structure on site during laying, and improve the convenience and stability of cable installation. In some occasions where cables need to be frequently installed and removed, such as temporary power supply facilities or mobile power equipment connections, the installation time can be significantly shortened and the work efficiency can be improved.

[0035] Further, refer to Figure 1~Figure 2 , and also includes a support ring 4, which is arc-shaped, the inner wall of the support ring 4 abuts against the outer skin layer 13, the two ends of the support ring 4 are respectively clamped with two support strips 2, and the support ring 4 has multiple support rings 4, and the multiple support rings 4 are distributed in an array along the axis of the cable body 1.

[0036] In this embodiment, the curvature of the inner wall of the support ring 4 matches the curvature of the outer skin layer 13. In the cable assembly production line, the support rings 4 are installed one by one on the outer skin layer 13 so that the inner wall is closely abutted against the outer skin layer 13. The two ends of the support ring 4 are respectively snapped with the two support bars 2, for example, by setting elastic buckles at both ends of the support ring 4, and the snapping is achieved by cooperating with the deformation gap 201. Multiple support rings 4 are distributed in an array along the axis of the cable body 1 to enhance the radial compressive strength of the cable. At the same time, during the laying process, the cable body 1 is generally transported between rollers, and the rollers will cause greater extrusion to the cable body 1. By setting a plurality of support rings 4 distributed at intervals, it is beneficial to increase the friction force on the surface of the cable body 1, so that the conveying length of the cable body 1 is more accurate. At the same time, the support rings 4 are counted, and the construction personnel can also judge the conveying length of the cable body 1, which makes the construction more convenient.

[0037] The provision of the support ring 4 greatly enhances the radial compressive resistance of the cable. When the cable may be squeezed by heavy objects or subjected to soil pressure when buried deep underground, it can effectively prevent the cable from deforming and protect the internal structure, making the cable body 1 suitable for a variety of harsh environments.

[0038] Further, refer to Figure 1~Figure 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] Further, refer to Figure 1 , Figure 4 , Fig. 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.

[0043] 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.

[0044] The support portion 21 has a reasonable shape, and the cooperation of the two groups of support bars 2 realizes the contact with the laying surface with a small area while supporting stably, and also provides a stable and reliable clamping space 211 for the ring 5, so that the connection between the support ring 4 and the support bar 2 is tighter and more stable. The smooth transition design of the transition portion 22 avoids stress concentration at the connection part, reduces the risk of component damage caused by external force, improves the reliability and durability of the overall cable structure, and ensures the safety and stability of the cable during long-term operation.

[0045] Further, refer to Figure 7~Figure 8The two cable bodies 1 are connected together to form a joint, and the joint sleeve is provided with a protective shell 8, and also includes a sealing ring 71 and a connecting ring 72. The two connecting rings 72 are respectively arranged at the two ends of the sealing ring 71. The two connecting rings 72 and one sealing ring 71 constitute a sealing member 7. The two connecting rings 72 are used to be clamped with the two support strips 2. The sealing member 7 is used to be arranged at the two ends of the cable body 1 and then abut against the inner wall of the protective shell 8. The ends of the two connecting rings 72 that are close to each other have a sealing head 721, and the sealing head 721 is used to fill the guide space 202.

[0046] In this embodiment, when 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 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. The structure is the same as the matching form of the support ring 4 and the ring 5. Since the two cable bodies 1 are connected together at the joint, the diameter is larger than the cable body 1, so the shape of the protective shell is usually two opposite cones, such as Figure 7 The structure of the protective shell close to one side of the cable body 1 is shown. Therefore, the thickness of the sealing ring 71 is greater than that of the supporting ring 4. At the same time, considering the existence of the guide space 202, a sealing head is provided on the connecting ring 72, and the sealing head fills the guide space 202 to achieve sealing.

[0047] 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 and affecting the electrical connection performance. The design of the seal 7 and the sealing head filling guide space 202 not only enhances the sealing performance at the joint, but also utilizes the original structural characteristics of the cable, making the sealing at the joint more comprehensive and reliable, reducing the risk of electrical failure caused by poor joint sealing, improving the overall reliability and safety of the cable after connection, and ensuring the continuity of power transmission.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A waterproof and wear-resistant high-voltage 10kV cable, characterized in that: include: A cable body (1), the cable body (1) comprising an inner core (11), a waterproof layer (12) and an outer skin layer (13), the waterproof layer (12) wrapping the inner core (11), and the outer skin layer (13) covering the outer side of the waterproof layer (12); A support bar (2), wherein the support bar (2) comprises a plurality of support bars (2), the plurality of support bars (2) being arranged on the outer skin layer (13) along a linear array, the support bars (2) being parallel to the axis of the cable body (1), the support bars (2) being used to abut against the laying surface of the cable body (1), and a deformation gap (201) being formed between two adjacent support bars (2), and the deformation gap (201) becomes larger or smaller after the cable body (1) is wound into a roll.

2. A waterproof and wear-resistant high-voltage 10kV cable according to claim 1, characterized in that: A plurality of the support bars (2) arranged along a linear array form a group, and a plurality of groups of the support bars (2) are arranged at circumferential intervals on the outer skin layer (13).

3. A waterproof and wear-resistant high-voltage 10kV cable according to claim 2, characterized in that: The support strips (2) have two groups, and the two groups of support strips (2) are distributed in parallel and at intervals on the outer skin layer (13). A guide space (202) is formed between the two groups of support strips (2). After the guide rod (3) is placed on the paving surface, the guide space (202) is used to accommodate the guide rod (3).

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

5. The waterproof and wear-resistant high-voltage 10kV cable according to claim 3, 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).

6. A waterproof and wear-resistant high-voltage 10kV cable according to claim 5, characterized in that: Also includes: A support ring (4), the support ring (4) being arc-shaped, the inner wall of the support ring (4) being in contact with the outer skin layer (13), the two ends of the support ring (4) being respectively clamped with the two support strips (2), the support ring (4) comprising a plurality of support rings (4), and the plurality of support rings (4) being distributed in an array along the axis of the cable body (1).

7. A waterproof and wear-resistant high-voltage 10kV cable according to claim 6, characterized in that: Also includes: A collar (5), wherein the collar (5) is arranged at both ends of the support ring (4), and the support ring (4) is clamped with the support bar (2) via the collar (5).

8. The waterproof and wear-resistant high-voltage 10kV cable according to claim 7, characterized in that: Also includes: a spacer bar (6), wherein a plurality of the 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 bar (6) and the outer skin layer (13) are integrally formed; The spacer strip (6) and the guide space (202) are respectively distributed on two opposite sides of the outer skin layer (13).

9. The waterproof and wear-resistant high-voltage 10kV cable according to claim 7, characterized in that: The support strip (2) comprises 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 strips (2) are close to each other; a clamping space (211) is formed between the support portion (21) and the outer skin (13); and an end of the collar (5) away from the support ring (4) is located in the clamping space (211).

10. The waterproof and wear-resistant high-voltage 10kV cable according to claim 3, characterized in that: The two cable bodies (1) are connected together to form a joint, wherein the joint sleeve is provided with a protective shell (8) and further comprises: A sealing ring (71) and a connecting ring (72), wherein two connecting rings (72) are respectively arranged at two ends of the sealing ring (71), and the two connecting rings (72) and one sealing ring (71) form a sealing member (7), wherein the two connecting rings (72) are used to be clamped with the two supporting strips (2), and the sealing member (7) is used to be arranged at both ends of the cable body (1) and then abut against the inner wall of the protective shell (8), and 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 guide space (202).

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