A type of ground wire de-icing tension string

Abstract

This utility model discloses a ground wire de-icing tension string, belonging to the field of power fittings technology. It mainly includes an insulating tension string assembly, which comprises a tower PSD mounting plate, an insulator string, and a tension PSD mounting plate. The tower PSD mounting plate further includes a tower PSD body and a tower arc-angle mounting post, with the arc-angle mounting post offset at 45° relative to the tower PSD body. The tension PSD mounting plate also includes a tension PSD body and a tension arc-angle mounting post, with the arc-angle mounting post offset at 45° relative to the tension PSD body. This utility model allows for flexible vertical or horizontal installation depending on the actual jumper routing direction, effectively ensuring the safety of transmission lines. It is highly versatile, easy and quick to install, and has low difficulty in high-altitude construction, making it widely applicable to ground wire de-icing systems for transmission lines.

Description

Technical Field

[0001] This utility model belongs to the field of power fittings technology. Specifically, it relates to a ground wire de-icing tension string with ingenious structural design, fast and accurate arc angle installation and positioning, strong safety, strong arc angle torsion resistance, flexible arc angle gap distance adjustment, and adaptability to different voltage levels and diverse environmental conditions. Background Technology

[0002] Ground wire insulator strings are used to support the ground wire in high-voltage overhead lines. During normal operation, their insulation design ensures insulation between the ground wire and the tower, reducing transmission energy loss and guaranteeing normal operation of ground wire carrier communication. When the ground wire voltage exceeds the set value, the protective gap breaks down and discharges, making the ground wire conductive with the tower, thus achieving protection functions such as lightning protection and current discharge. Ground wire de-icing tension strings are a type of ground wire insulator string.

[0003] Chinese patent publication number CN202771864U discloses a rod-type tension ground wire de-icing insulator, and specifically discloses the following technical solution: it is composed of a U-shaped groove, a gap angle, and a shed sheath core rod; the U-shaped groove is connected to the shed sheath core rod through the gap angle, and the shed sheath core rod has large sheds and small sheds, which are arranged in series.

[0004] However, traditional tension ground wire de-icing insulators have the following drawbacks in practical applications: 1. To avoid the risk of discharge, when the jumper wire leads downwards, the arc-reducing angle should be installed perpendicular to the ground and upwards; when the jumper wire leads upwards, the arc-reducing angle should be installed horizontally. However, the arc-reducing angle of traditional ground wire de-icing insulator strings is fixed and cannot be flexibly adjusted according to actual needs, posing a safety hazard.

[0005] 2. The arc-starting gap distance cannot be flexibly adjusted, making it unsuitable for lines with different voltage levels. For example, 10kV, 110kV, and 500kV lines have significant differences in normal operating voltage and overvoltage levels. A fixed gap distance will lead to false discharge or ineffective arc ignition. Furthermore, it is difficult to adapt to diverse needs in complex environments. For instance, in high-altitude areas where the air breakdown field strength is reduced, or in heavily polluted areas where the surface insulation performance of the insulator changes, a fixed gap cannot be flexibly adjusted, potentially resulting in false discharge due to an excessively small gap or inability to ignite the arc in a timely manner due to an excessively large gap. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a ground wire de-icing tension string with an ingenious structural design, fast and accurate arc angle installation and positioning, strong safety, strong arc angle torsion resistance, flexible arc angle gap distance adjustment, adaptability to different voltage levels, and adaptability to diverse environmental conditions.

[0007] This utility model is achieved through the following technical solution: A grounding wire de-icing tension string includes an insulating tension string assembly. One end of the insulating tension string assembly is connected to the tower via a tower end hardware assembly, and the other end of the insulating tension string assembly is connected to the grounding wire via a tension hardware assembly. The insulating tension string assembly includes a tower PSD hanging plate connected to the tower end hardware assembly. The tower PSD hanging plate is connected to the tension PSD hanging plate via an insulator string, and the tension PSD hanging plate is connected to the tension hardware assembly. The tower PSD hanging plate is electrically and fixedly equipped with a tower arc-shaped angle; the tension PSD hanging plate is electrically and fixedly equipped with a tension arc-shaped angle. The main body of the tower PSD mounting plate has a rectangular cross-section; at the middle position of the main body of the tower PSD is a tower arc-angle mounting column with a square cross-section. The tower arc-angle mounting column shares the same central axis as the main body of the tower PSD, and is offset by 45° relative to the main body of the tower PSD; the tower arc-angle is provided with a long connecting plate and a short connecting plate. After the long connecting plate and the short connecting plate are assembled together, they form a square mounting cavity that fits the tower arc-angle mounting column. The tension PSD main body of the tension PSD hanging plate has a rectangular cross-section; at the middle position of the tension PSD main body is a tension arc corner mounting column with a square cross-section. The tension arc corner mounting column shares the same central axis as the tension PSD main body and is set at a 45° offset relative to the tension PSD main body; the tension arc corner is provided with a long tension arc corner connecting plate and a short tension arc corner connecting plate. After the long tension arc corner connecting plate and the short tension arc corner connecting plate are assembled together, they form a square mounting cavity that matches the tension arc corner mounting column.

[0008] Preferably, the tower arc-prevention angle further includes a tower arc-prevention angle body that is electrically and fixedly connected to the upper end of the tower arc-prevention angle long connecting plate. The tower arc-prevention angle body is provided with a plurality of tower arc-prevention angle adjustment holes spaced apart along its long side. The tower arc-prevention angle long connecting plate is T-shaped, and the transverse short plate of the tower arc-prevention angle long connecting plate is provided with tower arc-prevention angle corresponding holes corresponding to the tower arc-prevention angle adjustment holes. The end of the tower arc-prevention angle body facing the insulator string direction is electrically and fixedly provided with a tower arc-prevention angle electrode part.

[0009] Preferably, the connection between the long connecting plate and the short connecting plate of the tower's arc angle, as well as the connection between the long connecting plate and the main body of the tower's arc angle, are all fixed by bolts.

[0010] Preferably, the tension-resistant arc angle further includes a tension-resistant arc angle body that is electrically fixedly connected to the upper end of the tension-resistant arc angle long connecting plate. The tension-resistant arc angle body is provided with a plurality of tension-resistant arc angle adjustment holes spaced apart along its long side. The tension-resistant arc angle long connecting plate is T-shaped, and a tension-resistant arc angle corresponding hole corresponding to the tension-resistant arc angle adjustment hole is provided on the transverse short plate of the tension-resistant arc angle long connecting plate. The end of the tension-resistant arc angle body facing the insulator string direction is electrically fixedly provided with a tension-resistant arc angle electrode part that is opposite to the position of the tower arc angle electrode part.

[0011] Preferably, the connection between the long connecting plate and the short connecting plate of the tension beam arc angle, as well as the connection between the long connecting plate and the main body of the tension beam arc angle, are all fixed by bolt fastening.

[0012] Preferably, the number of the insulated tension string assemblies is two; the two tower PSD hanging plates are respectively connected to the two insulator string connection holes of the tower triangular connecting plate via right-angle hanging plates, and the tower side connection holes of the tower triangular connecting plate are connected to the GD type trunnion hanging plate in sequence via double hanging plates, traction plates, tower U-shaped hanging ring one, extension ring, and tower U-shaped hanging ring two; the two tension PSD hanging plates are respectively connected to the two insulator string connection holes of the tension triangular connecting plate, and the conductor side connection holes of the tension triangular connecting plate are connected to the tension clamp via tension U-shaped hanging rings.

[0013] Preferably, the tower PSD hanging plate is connected to one end of the insulator string via a ball-head hanging ring, and the other end of the insulator string is connected to the tension PSD hanging plate via a bowl-head hanging plate.

[0014] Preferably, the tower arc-angle electrode is a plate-shaped electrode, and the tension arc-angle electrode is a round bar-shaped electrode; the tower arc-angle electrode is electrically and fixedly connected to the tower arc-angle main body by welding; the tension arc-angle electrode is electrically and fixedly connected to the tension arc-angle main body by welding.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model allows for flexible selection of vertical or horizontal installation based on the actual jumper routing direction, effectively ensuring the safety of the power transmission line.

[0016] 2. This utility model achieves rapid and accurate positioning of the arc angle through structural designs such as tower arc angle mounting column, tower arc angle long connecting plate, tower arc angle short connecting plate, tension arc angle mounting column, tension arc angle long connecting plate, and tension arc angle short connecting plate, and has high torsional resistance.

[0017] 3. This utility model has strong versatility and can freely adjust the arc-starting gap distance L according to the actual scenario. It can adapt to different voltage level lines and can be flexibly adjusted to meet the suspension string insulation requirements, avoiding accidental discharge or ineffective arc ignition. It can cope with diverse environments, such as high-altitude areas where thin air leads to a reduction in air breakdown field strength, requiring an increased gap distance; and polluted areas where the insulation performance of the insulator surface decreases, possibly requiring an appropriate reduction in the gap distance to ensure reliable arc ignition.

[0018] 4. This utility model has an ingenious structural design, is easy to manufacture, convenient and quick to install, and has low difficulty in high-altitude construction. It can be widely used in power transmission line ground wire de-icing systems. Attached Figure Description

[0019] Figure 1 This is a side view structural diagram of the present invention (when the tower arc angle and tension arc angle are installed vertically).

[0020] Figure 2 This is a top view structural diagram of the present invention (when the tower arc angle and tension arc angle are installed in the horizontal direction).

[0021] Figure 3 This is a schematic diagram of the structure of the PSD hanging plate for towers and the tension PSD hanging plate of this utility model. Figure 1 .

[0022] Figure 4 This is a schematic diagram of the structure of the PSD hanging plate for towers and the tension PSD hanging plate of this utility model. Figure 2 .

[0023] Figure 5 It is along Figure 4 A cross-sectional view of line A-A in the middle.

[0024] Figure 6 This is a schematic diagram of the front view of the tower's arc angle structure according to this utility model.

[0025] Figure 7 This is a schematic diagram of the side structure of the tower's arc angle according to this utility model.

[0026] Figure 8 This is a schematic diagram of the frontal structure of the tension-resistant billet with an arc angle of this utility model.

[0027] Figure 9 This is a schematic diagram of the side structure of the tension-resistant billet with an arc angle of this utility model.

[0028] In the diagram: 1. Tower end hardware assembly; 11. Right-angle hanging plate; 12. Tower triangular connecting plate; 13. Double hanging plate; 14. Traction plate; 151. Tower U-shaped hanging ring one; 152. Tower U-shaped hanging ring two; 16. Extension ring; 17. GD type trunnion hanging plate; 2. Tension hardware assembly; 21. Tension U-shaped hanging ring; 22. Tension clamp; 23. Tension triangular connecting plate; 3. Tower PSD hanging plate; 31. Tower PSD body; 32. Tower arc angle mounting post; 4. Insulator string; 5. Tension PSD hanging plate; 51. Tension PSD body; 52. Tension arc angle mounting post; 6. Tower arc angle; 61. Tower arc angle long connecting plate; 611. Tower arc angle corresponding hole; 62. Tower arc angle short connecting plate; 63. Tower arc angle main body; 631. Tower arc angle adjustment hole; 64. Tower arc angle electrode part; 7. Tension arc angle; 71. Tension arc angle long connecting plate; 711. Tension arc angle corresponding hole; 72. Tension arc angle short connecting plate; 73. Tension arc angle main body; 731. Tension arc angle adjustment hole; 74. Tension arc angle electrode part; 8. Insulating tension string assembly; 81. Ball head hanging ring; 82. Bowl head hanging plate. Detailed Implementation

[0029] To enable readers to better understand the design intent of this utility model, the technical solution described below is further described in conjunction with embodiments. It should be noted that directional terms that may appear in the following paragraphs, including but not limited to "up," "down," "left," "right," "front," and "back," are based on the visual orientation shown in the accompanying drawings and should not be considered as limitations on the scope of protection or technical solution of this utility model. Their purpose is solely to facilitate a better understanding of the technical solution described in this utility model by those skilled in the art.

[0030] In this specification, 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Example 1

[0032] like Figures 1 to 5As shown, an adjustable ground wire de-icing tension string with adjustable arc angle gap includes an insulating tension string assembly 8. One end of the insulating tension string assembly 8 is connected to the tower via a tower end hardware assembly 1, and the other end of the insulating tension string assembly 8 is connected to the ground wire via a tension hardware assembly 2. In this embodiment, the insulating tension string assembly 8 includes a tower PSD hanging plate 3 connected to the tower end hardware assembly 1. The tower PSD hanging plate 3 is connected to a tension PSD hanging plate 5 via an insulator string 4. The tension PSD hanging plate 5 is connected to the tension hardware assembly 2. The tower PSD hanging plate 3 is electrically fixedly mounted with a tower arc angle 6; the tension PSD hanging plate 5 is electrically fixedly mounted with a tension arc angle 7.

[0033] like Figure 4 As shown, the PSD body 31 of the tower PSD mounting plate 3 has a rectangular cross-section; at the middle position of the PSD body 31 is a square-shaped tower arc angle mounting column 32, which shares the same central axis as the PSD body 31 and is offset by 45° relative to the PSD body 31; the tower arc angle 6 is provided with a long connecting plate 61 and a short connecting plate 62, which, after being assembled together, form a square mounting cavity that matches the tower arc angle mounting column 32.

[0034] Similarly, Figure 4 As shown, the cross-section of the tension PSD body 51 of the tension PSD mounting plate 5 is rectangular; at the middle position of the tension PSD body 51 is a tension arc angle mounting post 52 with a square cross-section. The tension arc angle mounting post 52 shares the same central axis as the tension PSD body 51, and is offset by 45° relative to the tension PSD body 51; the tension arc angle 7 is provided with a long connecting plate 71 and a short connecting plate 72. After the long connecting plate 71 and the short connecting plate 72 are assembled together, they form a square mounting cavity that matches the tension arc angle mounting post 52. In this embodiment, the conductive fixed connection means that the electrical conduction relationship is maintained while the mechanical fixation is in place.

[0035] When installing the tower arc angle 6 and tension arc angle 7, operators can flexibly choose between vertical or horizontal installation depending on the jumper direction. The tower arc angle mounting column 32 and tension arc angle mounting column 52 are installed within a square mounting cavity, providing strong torsional resistance. Furthermore, the tower arc angle 6 and tension arc angle 7 rotate at a fixed angle each time, allowing for quick and direct installation, whether horizontal or vertical. This rapid and precise positioning effectively reduces the difficulty of high-altitude operations.

[0036] This embodiment allows for flexible selection of vertical or horizontal installation based on the actual jumper routing direction, effectively ensuring the safety of the power transmission line.

[0037] This embodiment achieves rapid and accurate positioning of the arc angle through structural designs such as tower arc angle mounting columns, tower arc angle long connecting plates, tower arc angle short connecting plates, tension arc angle mounting columns, tension arc angle long connecting plates, and tension arc angle short connecting plates, and has high torsional resistance.

[0038] This embodiment features an ingenious structural design, is easy to manufacture, quick and convenient to install, and has low difficulty in high-altitude construction. It can be widely used in power transmission line ground wire de-icing systems.

[0039] Example 2

[0040] Based on Embodiment 1, this embodiment continues to describe in detail the technical features involved therein and the functions and roles of these technical features in this utility model, so as to help those skilled in the art to fully understand the technical solution of this utility model and reproduce it.

[0041] like Figures 1 to 5 As shown, an adjustable ground wire de-icing tension string with adjustable arc angle gap includes an insulating tension string assembly 8. One end of the insulating tension string assembly 8 is connected to the tower via a tower end hardware assembly 1, and the other end of the insulating tension string assembly 8 is connected to the ground wire via a tension hardware assembly 2. In this embodiment, the insulating tension string assembly 8 includes a tower PSD hanging plate 3 connected to the tower end hardware assembly 1. The tower PSD hanging plate 3 is connected to a tension PSD hanging plate 5 via an insulator string 4. The tension PSD hanging plate 5 is connected to the tension hardware assembly 2. The tower PSD hanging plate 3 is electrically fixedly mounted with a tower arc angle 6; the tension PSD hanging plate 5 is electrically fixedly mounted with a tension arc angle 7.

[0042] like Figure 4 As shown, the PSD body 31 of the tower PSD mounting plate 3 has a rectangular cross-section; at the middle position of the PSD body 31 is a square-shaped tower arc angle mounting column 32, which shares the same central axis as the PSD body 31 and is offset by 45° relative to the PSD body 31; the tower arc angle 6 is provided with a long connecting plate 61 and a short connecting plate 62, which, after being assembled together, form a square mounting cavity that matches the tower arc angle mounting column 32.

[0043] Similarly, Figure 4As shown, the cross-section of the tension PSD body 51 of the tension PSD mounting plate 5 is rectangular; at the middle position of the tension PSD body 51 is a tension arc corner mounting column 52 with a square cross-section. The tension arc corner mounting column 52 shares the same central axis with the tension PSD body 51, and the tension arc corner mounting column 52 is set at a 45° offset relative to the tension PSD body 51; the tension arc corner 7 is provided with a tension arc corner long connecting plate 71 and a tension arc corner short connecting plate 72. After the tension arc corner long connecting plate 71 and tension arc corner short connecting plate 72 are assembled together, they form a square mounting cavity that matches the tension arc corner mounting column 52.

[0044] like Figures 6 to 9 As shown, the tower arc angle 6 in this embodiment also includes a tower arc angle body 63 that is electrically and fixedly connected to the upper end of the tower arc angle long connecting plate 61. The tower arc angle body 63 has multiple tower arc angle adjustment holes 631 spaced apart along its long side. The tower arc angle long connecting plate 61 is T-shaped, and its transverse short plate has corresponding tower arc angle holes 611 that correspond to the tower arc angle adjustment holes 631. A tower arc angle electrode part 64 is electrically and fixedly provided at the end of the tower arc angle body 63 facing the insulator string 4. When it is necessary to change the value of the arc angle gap distance L, the tower arc angle body 63 is moved along its long side, that is, the tower arc angle adjustment holes 631 are aligned with different corresponding tower arc angle holes 611. After alignment, the tower arc angle long connecting plate 61 and the tower arc angle body 63 are electrically and fixedly connected. The structure is simple and easy to manufacture.

[0045] Furthermore, the connection between the long connecting plate 61 and the short connecting plate 62 of the tower's arc angle, as well as the connection between the long connecting plate 61 and the main body 63 of the tower's arc angle, are all fixed by bolt fastening.

[0046] In this embodiment, the tension-resistant arc angle 7 also includes a tension-resistant arc angle body 73 that is electrically and fixedly connected to the upper end of the tension-resistant arc angle long connecting plate 71. The tension-resistant arc angle body 73 is provided with a plurality of tension-resistant arc angle adjustment holes 731 at intervals along its long side. The tension-resistant arc angle long connecting plate 71 is T-shaped, and the transverse short plate of the tension-resistant arc angle long connecting plate 71 is provided with tension-resistant arc angle corresponding holes 711 corresponding to the tension-resistant arc angle adjustment holes 731. The end of the tension-resistant arc angle body 73 facing the insulator string 4 is electrically and fixedly provided with a tension-resistant arc angle electrode part 74 that is opposite to the position of the tower arc angle electrode part 64. When it is necessary to change the value of the gap distance L of the tension arc angle, similarly, the tension arc angle body 73 is moved along the long side of the tension arc angle body 73, that is, the tension arc angle adjustment hole 731 is aligned with the corresponding hole 711 of different tension arc angles. After alignment, the tension arc angle long connecting plate 71 is electrically fixedly connected to the tension arc angle body 73. The structural design is simple and easy to manufacture.

[0047] Furthermore, the connection between the long connecting plate 71 and the short connecting plate 72 of the tension beam arc angle, as well as the connection between the long connecting plate 71 and the main body 73 of the tension beam arc angle, are all fixed by bolt fastening.

[0048] In this embodiment, the number of insulated tension string assemblies 8 is two, forming a double-connected ground wire de-icing tension string. The two tower PSD hanging plates 3 are respectively connected to the two insulator string connection holes of the tower triangular connecting plate 12 via right-angle hanging plates 11. The tower-side connection holes of the tower triangular connecting plate 12 are connected to the GD-type trunnion hanging plate 17 via double hanging plates 13, traction plates 14, tower U-shaped hanging ring one 151, extension ring 16, and tower U-shaped hanging ring two 152. The GD-type trunnion hanging plate 17 is directly or indirectly connected to the tower. The two tension PSD hanging plates 5 are respectively connected to the two insulator string connection holes of the tension triangular connecting plate 23. The conductor-side connection holes of the tension triangular connecting plate 23 are connected to the tension clamp 22 via a tension U-shaped hanging ring 21. The tension clamp 22 is used to connect the ground wire.

[0049] Furthermore, the tower PSD hanging plate 3 is connected to one end of the insulator string 4 via the ball head hanging ring 81, and the other end of the insulator string 4 is connected to the tension PSD hanging plate 5 via the cup head hanging plate 82.

[0050] Furthermore, the tower arc-angle electrode part 64 is a plate-shaped electrode, and the tension arc-angle electrode part 74 is a round bar-shaped electrode; the tower arc-angle electrode part 64 is electrically and fixedly connected to the tower arc-angle main body 63 by welding; the tension arc-angle electrode part 74 is electrically and fixedly connected to the tension arc-angle main body 73 by welding. The welding method ensures both good electrical contact and sufficient mechanical strength.

[0051] This embodiment, while possessing the advantages of Embodiment 1, also features strong versatility. It can freely adjust the arc-starting angle gap distance L according to the actual scenario, flexibly adjusting the gap distance to meet the insulation requirements of the suspension string and avoid accidental discharge or ineffective arc ignition. It can cope with diverse environments, such as high-altitude areas where thin air leads to a reduction in air breakdown field strength, requiring an increased gap distance; and polluted areas where the insulation performance of the insulator surface decreases, possibly requiring an appropriate reduction in the gap distance to ensure reliable arc ignition.

[0052] In summary, this is merely a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent variations and modifications made in accordance with the shape, structure, features and spirit of the claims of the present utility model should be included within the scope of the claims of the present utility model.

Claims

1. A grounding wire de-icing tension string, comprising an insulating tension string assembly (8), one end of the insulating tension string assembly (8) being connected to a tower via a tower end fitting assembly (1), and the other end of the insulating tension string assembly (8) being connected to a grounding wire via a tension fitting assembly (2), characterized in that: The insulated tension string assembly (8) includes a tower PSD hanging plate (3) connected to the tower end hardware assembly (1), the tower PSD hanging plate (3) is connected to the tension PSD hanging plate (5) via the insulator string (4), and the tension PSD hanging plate (5) is connected to the tension hardware assembly (2); the tower PSD hanging plate (3) is electrically fixedly installed with a tower arc angle (6); the tension PSD hanging plate (5) is electrically fixedly installed with a tension arc angle (7); The pole PSD body (31) of the pole PSD mounting plate (3) has a rectangular cross-section; the pole PSD body (31) has a square cross-section pole angle mounting column (32) at the middle position, the pole angle mounting column (32) and the pole PSD body (31) share the same central axis, and the pole angle mounting column (32) is set at a 45° offset relative to the pole PSD body (31); the pole angle (6) is provided with a long pole angle connecting plate (61) and a short pole angle connecting plate (62), and the long pole angle connecting plate (61) and the short pole angle connecting plate (62) are assembled to form a square mounting cavity that is compatible with the pole angle mounting column (32); The cross-section of the tension PSD body (51) of the tension PSD hanging plate (5) is rectangular; at the middle position of the tension PSD body (51) is a tension arc angle mounting column (52) with a square cross-section. The tension arc angle mounting column (52) shares the same central axis with the tension PSD body (51), and the tension arc angle mounting column (52) is set at a 45° offset relative to the tension PSD body (51); the tension arc angle (7) is provided with a tension arc angle long connecting plate (71) and a tension arc angle short connecting plate (72). After the tension arc angle long connecting plate (71) and the tension arc angle short connecting plate (72) are assembled together, a square mounting cavity that is compatible with the tension arc angle mounting column (52) is formed.

2. The grounding wire de-icing tension string according to claim 1, characterized in that: The tower arc angle (6) also includes a tower arc angle body (63) that is electrically and fixedly connected to the upper end of the tower arc angle long connecting plate (61). The tower arc angle body (63) is provided with a plurality of tower arc angle adjustment holes (631) at intervals along the long side. The tower arc angle long connecting plate (61) is T-shaped. The transverse short plate of the tower arc angle long connecting plate (61) is provided with tower arc angle corresponding holes (611) corresponding to the tower arc angle adjustment holes (631). The tower arc angle body (63) is electrically and fixedly provided with a tower arc angle electrode part (64) at the end facing the insulator string (4).

3. A ground wire de-icing tension string according to claim 2, characterized in that: The connection between the long connecting plate (61) and the short connecting plate (62) of the tower arc angle, as well as the connection between the long connecting plate (61) and the main body (63) of the tower arc angle, are all fixed by bolt fastening.

4. A ground wire de-icing tension string according to claim 2, characterized in that: The tension-resistant arc angle (7) also includes a tension-resistant arc angle body (73) that is electrically and fixedly connected to the upper end of the tension-resistant arc angle long connecting plate (71). The tension-resistant arc angle body (73) is provided with a plurality of tension-resistant arc angle adjustment holes (731) at intervals along the long side. The tension-resistant arc angle long connecting plate (71) is T-shaped. The lateral short plate of the tension-resistant arc angle long connecting plate (71) is provided with tension-resistant arc angle corresponding holes (711) corresponding to the tension-resistant arc angle adjustment holes (731). The tension-resistant arc angle body (73) is electrically and fixedly provided with a tension-resistant arc angle electrode part (74) that is opposite to the position of the tower arc angle electrode part (64) at the end facing the insulator string (4).

5. A ground wire de-icing tension string according to claim 4, characterized in that: The connection between the long connecting plate (71) and the short connecting plate (72) of the tension-resistant arc angle, as well as the connection between the long connecting plate (71) and the main body (73) of the tension-resistant arc angle, are all fixed by bolt fastening.

6. A ground wire de-icing tension string according to claim 1, characterized in that: The number of the insulated tension string assembly (8) is two; the two tower PSD hanging plates (3) are respectively connected to the two insulator string connection holes of the tower triangular connecting plate (12) via right angle hanging plates (11), and the tower side connection holes of the tower triangular connecting plate (12) are connected to the GD type trunnion hanging plate (17) via double hanging plates (13), traction plates (14), tower U-shaped hanging ring one (151), extension ring (16), tower U-shaped hanging ring two (152) in sequence; the two tension PSD hanging plates (5) are respectively connected to the two insulator string connection holes of the tension triangular connecting plate (23), and the conductor side connection holes of the tension triangular connecting plate (23) are connected to the tension clamp (22) via tension U-shaped hanging ring (21).

7. A ground wire de-icing tension string according to claim 6, characterized in that: The tower PSD hanging plate (3) is connected to one end of the insulator string (4) via the ball head hanging ring (81), and the other end of the insulator string (4) is connected to the tension PSD hanging plate (5) via the bowl head hanging plate (82).

8. A ground wire de-icing tension string according to claim 2, characterized in that: The tower arc-angle electrode part (64) is a plate-shaped electrode, and the tension arc-angle electrode part (74) is a round bar-shaped electrode; the tower arc-angle electrode part (64) is electrically and fixedly connected to the tower arc-angle body (63) by welding; the tension arc-angle electrode part (74) is electrically and fixedly connected to the tension arc-angle body (73) by welding.

Images