Straight-line transmission tower with windage suppression

Abstract

The application relates to a wind deviation suppression straight-line power transmission tower, which comprises a tower leg, a tower body and a tower head arranged in sequence along a first direction, the first direction being a height direction of the power transmission tower, the tower head comprising: at least one first conductor cross arm, the first conductor cross arm comprising a first hanging point and a second hanging point; at least one first auxiliary cross arm located between the first conductor cross arm and the tower leg in the first direction, a normal projection of the first auxiliary cross arm on a first plane at least partially overlapping a normal projection of the first conductor cross arm on the first plane, the first direction being perpendicular to the first plane, the first auxiliary cross arm comprising a first connecting point; and at least one Y-shaped insulator string, the Y-shaped insulator string comprising three edge connecting ends, the three edge connecting ends of the Y-shaped insulator string being connected with the first hanging point, the second hanging point and the first connecting point respectively. The application can improve the wind deviation suppression capacity of the power transmission tower.

Description

Technical Field

[0001] This application relates to the field of power transmission equipment, and in particular to a straight-line transmission tower for wind deflection suppression. Background Technology

[0002] With the rapid development of power grids, the number of transmission lines in areas with complex terrain and severe weather conditions is increasing. Wind deflection is one of the main causes of short-circuit tripping and other accidents on transmission lines, especially under strong wind conditions, where wind deflection can affect the safe operation of the entire power grid. This phenomenon can be mainly divided into three categories: jumper wind deflection, phase-to-phase wind deflection, and suspension insulator wind deflection. Among these, insulator wind deflection leading to discharge accidents and tripping is more common. When wind deflection occurs on a line, emergency repairs and power outages are often required, causing inconvenience and losses to power grid operations. Therefore, the scientific and reasonable adoption of anti-wind deflection technologies is particularly important for improving the stability and safety of transmission lines.

[0003] However, the relevant technology has the problem that the conductor can easily deviate under strong wind conditions. Summary of the Invention

[0004] Therefore, it is necessary to provide a wind-deflection-suppressing straight-line transmission tower, which aims to solve the problem that conductors are easily deflected under strong wind conditions in related technologies.

[0005] In a first aspect, embodiments of this application provide a straight-line transmission tower for wind deflection suppression, comprising tower legs, a tower body, and a tower head arranged sequentially along a first direction, wherein the first direction is the height direction of the transmission tower, and the tower head includes:

[0006] At least one first conductor crossarm, the first conductor crossarm including a first hanging point and a second hanging point;

[0007] At least one first auxiliary crossarm is located between the first conductor crossarm and the tower leg in the first direction. The orthographic projection of the first auxiliary crossarm on the first plane at least partially overlaps with the orthographic projection of the first conductor crossarm on the first plane. The first direction is perpendicular to the first plane. The first auxiliary crossarm includes a first connection point.

[0008] At least one Y-type insulator string, the Y-type insulator string including three edge connection ends, the three edge connection ends of the Y-type insulator string being respectively connected to the first hanging point, the second hanging point and the first connection point.

[0009] In some embodiments, the Y-type insulator string includes a first insulator segment, a second insulator segment, and a third insulator segment that respectively connect the three edge connection ends, the first insulator segment, the second insulator segment, and the third insulator segment intersecting at a first conductor suspension point;

[0010] The transmission tower also includes a conductor, which passes through the first conductor hanging point.

[0011] In some implementations, in the second direction, the length of the first auxiliary crossarm is less than the length of the first conductor crossarm, and the second direction is perpendicular to the first direction.

[0012] In some embodiments, the transmission tower includes two first conductor crossarms, which are symmetrically arranged in a second direction. The two first conductor crossarms are a first left crossarm and a first right crossarm, respectively, and the second direction is perpendicular to the first direction.

[0013] The transmission tower includes two first auxiliary crossarms, which are a first left auxiliary crossarm and a first right auxiliary crossarm symmetrically arranged in the second direction.

[0014] The transmission tower includes at least two Y-type insulator strings, and each of the first conductor crossarms is connected to at least one Y-type insulator string with the corresponding first auxiliary crossarm.

[0015] In some embodiments, the first auxiliary crossarm is a second conductor crossarm, and the second conductor crossarm includes a third hanging point and a fourth hanging point;

[0016] The transmission tower also includes two second auxiliary crossarms, which are located between the second conductor crossarm and the tower leg in the first direction. The two second auxiliary crossarms are a second left auxiliary crossarm and a second right auxiliary crossarm, and each second auxiliary crossarm includes a second connection point.

[0017] The transmission tower includes at least four Y-type insulator strings. The third hanging point, the fourth hanging point, and the second connection point are respectively connected to the three edge connection ends of a Y-type insulator string. Each second conductor crossarm is connected to at least one Y-type insulator string with the corresponding second auxiliary crossarm.

[0018] In some embodiments, the second auxiliary crossarm is a third conductor crossarm, which includes a fifth suspension point and a sixth suspension point;

[0019] The transmission tower also includes two third auxiliary crossarms, which are located between the third conductor crossarm and the tower leg in the first direction. The two third auxiliary crossarms are a third left auxiliary crossarm and a third right auxiliary crossarm, and each third auxiliary crossarm includes a third connection point.

[0020] The transmission tower includes at least six Y-type insulator strings. The fifth hanging point, the sixth hanging point, and the third connection point are respectively connected to the three edge connection ends of a Y-type insulator string. Each third conductor crossarm is connected to at least one Y-type insulator string with the corresponding third auxiliary crossarm.

[0021] In some embodiments, the transmission tower is a T-shaped tower or a goblet-shaped tower.

[0022] In some embodiments, the transmission tower includes two first conductor crossarms and one intermediate phase crossarm. The two first conductor crossarms are symmetrically arranged on both sides of the intermediate phase crossarm in a second direction, and both first conductor crossarms are connected to the intermediate phase crossarm. The second direction is perpendicular to the first direction.

[0023] The tower head includes a tower window, and the intermediate phase crossbeam is the top crossbeam of the tower window;

[0024] The tower head also includes two symmetrically arranged first connecting arms and two symmetrically arranged second connecting arms. One end of the intermediate phase crossarm, one first connecting arm, one second connecting arm and the tower body are connected in sequence. The other end of the intermediate phase crossarm, one first connecting arm, one second connecting arm and the tower body are connected in sequence.

[0025] The intermediate phase crossarm includes a first intermediate hanging point and a second intermediate hanging point, and the two second connecting arms have a first intermediate connection point at the connection points with the tower body;

[0026] The transmission tower includes at least three Y-type insulator strings, and each of the first conductor crossarms is connected to at least one Y-type insulator string;

[0027] The first intermediate hanging point, the second intermediate hanging point, and the first intermediate hanging point are respectively connected to the three edge connection ends of the Y-shaped insulator string.

[0028] In some embodiments, the edge connection end of the first insulator segment is connected to the first hanging point, the edge connection end of the second insulator segment is connected to the second hanging point, and the first insulator segment and the second insulator segment have the same length.

[0029] In some embodiments, at least two of the first insulator segment, the second insulator segment, and the third insulator segment are in a stretched state.

[0030] In this embodiment, the Y-type insulator string includes three edge connection ends, which are respectively connected to a first suspension point, a second suspension point, and a first connection point. The conductor can be fixed to the Y-type insulator string, for example, by passing the conductor through the first conductor suspension point. The Y-type insulator string includes a first insulator segment, a second insulator segment, and a third insulator segment, respectively connected to the three edge connection ends. Firstly, the Y-type insulator string can apply a fixing force to the conductor from three directions: the first insulator segment, the second insulator segment, and the third insulator segment. This fixing force can be tensile stress and / or compressive stress, thereby preventing vertical and horizontal deviation of the conductor. Secondly, the Y-type insulator string has a simple manufacturing process, clear force transmission, and its main load-bearing object is the tower body. During long-term use, it avoids the risk of detachment and damage, balancing safety and economy. Thirdly, it ensures the structural independence and component redundancy of the tower. The newly added vertical tension insulator string (the third insulator segment) of the Y-type insulator string enhances wind deflection resistance, allowing for direct retrofitting of existing towers with little or no structural alteration. Fourthly, when the Y-type insulator string is in operation, it always ensures that at least two of the first, second, and third insulator segments are under tension. Even if the Y-type insulator string is damaged, at least two of the first, second, and third insulator segments can still continue to function. Therefore, it not only improves wind deflection resistance but also does not damage the original tower structure, increasing wind deflection redundancy and saving maintenance costs. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a first schematic diagram of a straight transmission tower for wind deflection suppression provided for some embodiments of this application.

[0033] Figure 2 This is a second schematic diagram of a straight transmission tower for wind deflection suppression provided for some embodiments of this application.

[0034] Figure 3 This is a third schematic diagram of a straight transmission tower for wind deflection suppression provided for some embodiments of this application.

[0035] Figure 4 This is a fourth schematic diagram of a straight transmission tower for wind deflection suppression provided for some embodiments of this application.

[0036] Figure 5This is a fifth schematic diagram of a straight transmission tower for wind deflection suppression provided for some embodiments of this application.

[0037] Explanation of reference numerals in the attached diagram: Transmission tower 100; Tower leg 10C; Tower body 10B; Tower head 10A; First conductor crossarm 11; First auxiliary crossarm F1; Y-type insulator string 60; First hanging point 11g1; Second hanging point 11g2; First connection point F1g1; First insulator segment 611; Second insulator segment 612; Third insulator segment 613; First conductor hanging point 6123; First left crossarm 11Z; First right crossarm 11Y; First left auxiliary crossarm F1Z; First right auxiliary crossarm F1Y; Second conductor crossarm 21; Third hanging point 21g1; Fourth hanging point 21g2; Second auxiliary crossarm F2; Second left auxiliary crossarm F2Z; Second right auxiliary crossarm F2Y; Second connection point F2g1; Second left conductor crossarm 21Z; Second right conductor crossarm 21Y; Third conductor crossarm 31; Fifth hanging point 31g1; Sixth hanging point 31g2; Third auxiliary crossarm F3; Third left auxiliary crossarm F3Z; Third right auxiliary crossarm F3Y; Third connection point F3g1; Third left conductor crossarm 31Z; Third right conductor crossarm 31Y;

[0038] First direction Y; Second direction X; Conductor 71; Intermediate phase crossarm 12Z; Tower window 10AT; First connecting arm L1; Second connecting arm L2; First intermediate hanging point 12g1; Second intermediate hanging point 12g2; First intermediate connection point L21; Ground wire crossarm 51. Detailed Implementation

[0039] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0041] When describing positional relationships, unless otherwise specified, when an element, such as a layer, film, or substrate, is referred to as being "on" another element, it may be directly on the other element or there may be intermediate elements present. Furthermore, when a layer is referred to as being "below" another layer, it may be directly below it or there may be one or more intermediate elements present. It is also understood that when a layer is referred to as being "between" two layers, it may be the only layer between the two layers, or there may be one or more intermediate elements present.

[0042] When using the terms “including,” “having,” and “comprising” as described herein, another component may be added unless explicitly qualifying terms such as “only,” “consisting of,” etc. are used. Unless otherwise stated, singular terms may include plural forms and should not be construed as having a quantity of one.

[0043] It should be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of this application, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0044] It should also be understood that, in interpreting an element, although not explicitly described, the element is interpreted as including a range of error, which should be within the acceptable deviation range of a particular value as determined by a person skilled in the art. For example, "approximately," "about," or "substantially" can mean within one or more standard deviations, without limitation herein.

[0045] Furthermore, in the instruction manual, the phrase "planar distribution diagram" refers to the diagram when the target part is viewed from above, and the phrase "cross-sectional diagram" refers to the diagram when the target part is viewed from the side as a cross-section taken by vertically cutting the target part.

[0046] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the components are shown in the drawings only as examples and not necessarily to actual scale.

[0047] Please see Figures 1 to 5 . Figure 1 This is a first schematic diagram of a straight transmission tower for wind deflection suppression provided for some embodiments of this application. Figure 2 This is a second schematic diagram of a straight transmission tower for wind deflection suppression provided for some embodiments of this application. Figure 3 This is a third schematic diagram of a straight transmission tower for wind deflection suppression provided for some embodiments of this application. Figure 4 This is a fourth schematic diagram of a straight transmission tower for wind deflection suppression provided for some embodiments of this application. Figure 5This is a fifth schematic diagram of a straight transmission tower for wind deflection suppression provided for some embodiments of this application.

[0048] This application provides a wind-deflection-suppressing straight-line transmission tower 100, which includes tower legs 10C, tower body 10B, and tower head 10A arranged sequentially along a first direction Y, where the first direction Y is the height direction of the transmission tower 100. The tower head 10A includes at least one first conductor crossarm 11, at least one first auxiliary crossarm F1, and at least one Y-type insulator string 60. The first conductor crossarm 11 includes a first suspension point 11g1 and a second suspension point 11g2; at least one first auxiliary crossarm F1 is located between the first conductor crossarm 11 and the tower leg 10C in the first direction Y, and the orthographic projection of the first auxiliary crossarm F1 on the first plane at least partially overlaps with the orthographic projection of the first conductor crossarm 11 on the first plane, the first direction Y is perpendicular to the first plane, and the first auxiliary crossarm F1 includes a first connection point F1g1; the Y-type insulator string 60 includes three edge connection ends, and the three edge connection ends of the Y-type insulator string 60 are respectively connected to the first suspension point 11g1, the second suspension point 11g2 and the first connection point F1g1.

[0049] For example, the first conductor crossarm 11 is located at the top of the tower head 10A, but is not limited thereto.

[0050] For example, the first direction Y is the height direction of the transmission tower 100, such as the first direction Y being the vertical direction. The first direction Y is perpendicular to the first plane, such as the first plane being a horizontal plane or the ground.

[0051] For example, the orthographic projection of the first auxiliary crossarm F1 on the first plane and the orthographic projection of the first conductor crossarm 11 on the first plane at least partially overlap, meaning that the first auxiliary crossarm F1 and the first conductor crossarm 11 extend in the same direction and are located on the same side of the transmission tower 100.

[0052] For example, the wind-suppressed straight-line transmission tower 100 refers to the transmission tower 100 having a better and stronger ability to resist strong winds after being equipped with Y-type insulator strings 60, which can better prevent the conductor 71 from deviating.

[0053] For example, in the existing technology, under the influence of wind load, the wind deflection of the conductor is insufficient to ensure the gap with the tower, resulting in the phenomenon of discharge. Existing technical solutions have limited effects through modification, load-bearing, and obstruction, the wind deflection angle is not significantly controlled, and there are corresponding safety hazards in construction and operation.

[0054] For example, conductor 71 can be fixed to Y-type insulator string 60 (conductor 71 can be a jumper, but is not limited to this), for example, conductor 71 passes through the first conductor suspension point 6123. Y-type insulator string 60 includes a first insulator segment 611, a second insulator segment 612, and a third insulator segment 613 respectively connecting the three edge connection ends. Y-type insulator string 60 can apply fixing forces to conductor 71 from three directions: the first insulator segment 611, the second insulator segment 612, and the third insulator segment 613. The fixing forces can be tensile stress and / or compressive stress, thereby preventing vertical and horizontal deviation of conductor 71.

[0055] In this embodiment, the Y-type insulator string 60 includes three edge connection ends, which are respectively connected to a first hanging point 11g1, a second hanging point 11g2, and a first connection point F1g1. The conductor 71 can be fixed to the Y-type insulator string 60, for example, by passing through the first conductor hanging point 6123. The Y-type insulator string 60 includes a first insulator segment 611, a second insulator segment 612, and a third insulator segment 613, which are respectively connected to the three edge connection ends. Firstly, the Y-type insulator string 60 can apply a fixing force to the conductor 71 from three directions: the first insulator segment 611, the second insulator segment 612, and the third insulator segment 613. This fixing force can be tensile stress and / or compressive stress, thereby preventing vertical and horizontal deviation of the conductor 71. Secondly, the Y-type insulator string 60 has a simple manufacturing process, clear force transmission, and its main load-bearing object is the tower body. During long-term use, it avoids the risk of detachment and damage, balancing safety and economy. Thirdly, it ensures the structural independence and component redundancy of the tower. The newly added vertical tension insulator string (third insulator segment 613) in the Y-type insulator string 60 enhances wind deflection resistance, allowing for direct retrofitting of existing towers with little or no structural alteration. Fourthly, when the Y-type insulator string 60 is in operation, it always ensures that at least two of the first insulator segment 611, the second insulator segment 612, and the third insulator segment 613 are under tension. Even if the Y-type insulator string 60 is damaged, at least two of the first insulator segment 611, the second insulator segment 612, and the third insulator segment 613 can still continue to operate. Therefore, it not only improves wind deflection resistance but also does not damage the original tower structure, increasing wind deflection redundancy and saving maintenance costs.

[0056] In some embodiments, the Y-type insulator string 60 includes a first insulator segment 611, a second insulator segment 612, and a third insulator segment 613 respectively connecting three edge connection ends, the first insulator segment 611, the second insulator segment 612, and the third insulator segment 613 intersecting at a first conductor suspension point 6123; the transmission tower 100 also includes a conductor 71, the conductor 71 passing through the first conductor suspension point 6123.

[0057] For example, the first insulator segment 611, the second insulator segment 612, and the third insulator segment 613 intersect at the first conductor hanging point 6123. The first conductor hanging point 6123 can fix the conductor 71. The conductor 71 extends through the first conductor hanging point 6123 and can be fixed from three directions: the first insulator segment 611, the second insulator segment 612, and the third insulator segment 613.

[0058] For example, in some other embodiments, the conductor 71 may be fixed to other locations, such as to the third insulator segment 613.

[0059] For example, the third insulator segment 613 can further constrain the lateral displacement of the conductor 71, control the gap between the conductor and the tower body, and effectively reduce discharge phenomena under wind load, thus avoiding safety risks.

[0060] In some implementations, in the second direction X, the length of the first auxiliary crossarm F1 is less than the length of the first conductor crossarm 11, and the second direction X is perpendicular to the first direction Y.

[0061] For example, such as Figure 2 As shown, when the first auxiliary crossarm F1 is only used to connect the Y-type insulator string 60 and not at the same time as the conductor crossarm, the extension length of the first auxiliary crossarm F1 can be set to be less than the extension length of the first conductor crossarm 11. For example, the third insulator segment 613 can be connected to the outer end of the first auxiliary crossarm F1, which can reduce the amount of material used in the first auxiliary crossarm F1 and reduce the weight of the transmission tower 100.

[0062] It should be noted that in some other embodiments, in the second direction X, the length of the first auxiliary crossarm F1 can be greater than or equal to the length of the first conductor crossarm 11, and the second direction X is perpendicular to the first direction Y.

[0063] In some implementations, such as Figure 2 As shown, the transmission tower 100 includes two first conductor crossarms 11, which are symmetrically arranged in the second direction X. The two first conductor crossarms 11 are a first left crossarm 11Z and a first right crossarm 11Y, respectively. The second direction X is perpendicular to the first direction Y. The transmission tower 100 includes two first auxiliary crossarms F1, which are a first left auxiliary crossarm F1Z and a first right auxiliary crossarm F1Y, which are symmetrically arranged in the second direction X. The transmission tower 100 includes at least two Y-type insulator strings 60. Each first conductor crossarm 11 is connected to at least one Y-type insulator string 60 with the corresponding first auxiliary crossarm F1.

[0064] For example, the first left crossarm 11Z and the first right crossarm 11Y extend along the first sub-direction, and the first left auxiliary crossarm F1Z and the first right auxiliary crossarm F1Y also extend along the first sub-direction. The extension directions of the first left crossarm 11Z and the first right crossarm 11Y are the same as the extension directions of the first left auxiliary crossarm F1Z and the first right auxiliary crossarm F1Y.

[0065] For example, each first conductor crossarm 11 is connected to at least one Y-type insulator string 60 with the corresponding first auxiliary crossarm F1, which can fix the conductor 71 suspended on each first conductor crossarm 11 and prevent the conductor 71 from shifting.

[0066] In some implementations, such as Figure 3 As shown, the first auxiliary crossarm F1 is the second conductor crossarm 21, which includes a third suspension point 21g1 and a fourth suspension point 21g2. The transmission tower 100 also includes two second auxiliary crossarms F2, which are located between the second conductor crossarm 21 and the tower leg 10C in the first direction Y. The two second auxiliary crossarms F2 are the second left auxiliary crossarm F2Z and the second right auxiliary crossarm F2Y, respectively. The second auxiliary crossarm F2 includes a second connection point F2g1. The transmission tower 100 includes at least four Y-type insulator strings 60. The third suspension point 21g1, the fourth suspension point 21g2, and the second connection point F2g1 are respectively connected to the three edge connection ends of a Y-type insulator string 60. Each second conductor crossarm 21 is connected to at least one Y-type insulator string 60 with the corresponding second auxiliary crossarm F2.

[0067] For example, such as Figure 3 As shown, the two first auxiliary crossarms F1 are multiplexed / simultaneously used as two second conductor crossarms 21, which are the second left conductor crossarm 21Z and the second right conductor crossarm 21Y, respectively. The second left conductor crossarm 21Z and the second right conductor crossarm 21Y are symmetrically arranged.

[0068] For example, such as Figure 3 As shown, the first auxiliary crossarm F1 is reused / simultaneously serves as the second conductor crossarm 21, and also plays the role of passing through the conductor. For example, tension hanging points are provided on the second conductor crossarm 21.

[0069] For example, such as Figure 3 As shown, the first auxiliary crossarm F1 is the second conductor crossarm 21, and the transmission tower 100 also includes two second auxiliary crossarms F2. The transmission tower 100 can transmit multi-phase conductors.

[0070] For example, Figure 3 The diagram illustrates that the transmission tower includes two layers of conductor crossarms and two layers of Y-type insulator strings 60. Figure 4The illustration shows a transmission tower consisting of three layers of conductor crossarms and three layers of Y-type insulator strings 60. Transmission towers may also include four, five, six, or other multiple layers of conductor crossarms, and may include multiple layers of Y-type insulator strings 60, which will not be listed here.

[0071] In some implementations, such as Figure 4 As shown, the second auxiliary crossarm F2 is the third conductor crossarm 31, which includes a fifth suspension point 31g1 and a sixth suspension point 31g2. The transmission tower 100 also includes two third auxiliary crossarms F3, which are located between the third conductor crossarm 31 and the tower leg 10C in the first direction Y. The two third auxiliary crossarms F3 are the third left auxiliary crossarm F3Z and the third right auxiliary crossarm F3Y, respectively. The third auxiliary crossarm F3 includes a third connection point F3g1. The transmission tower 100 includes at least six Y-type insulator strings 60. The fifth suspension point 31g1, the sixth suspension point 31g2 and the third connection point F3g1 are respectively connected to the three edge connection ends of a Y-type insulator string 60. Each third conductor crossarm 31 is connected to at least one Y-type insulator string 60 with the corresponding third auxiliary crossarm F3.

[0072] For example, such as Figure 4 As shown, the two first auxiliary crossarms F1 are two second conductor crossarms 21, and the two second auxiliary crossarms F2 are two third conductor crossarms 31. The two second conductor crossarms 21 are the second left conductor crossarm 21Z and the second right conductor crossarm 21Y, respectively. The two third conductor crossarms 31 are the third left conductor crossarm 31Z and the third right conductor crossarm 31Y, respectively. The third left conductor crossarm 31Z and the third right conductor crossarm 31Y are symmetrically arranged.

[0073] For example, such as Figure 4 As shown, the first auxiliary crossarm F1 is reused / simultaneously used as the second conductor crossarm 21, and the second auxiliary crossarm F2 is reused / simultaneously used as the third conductor crossarm 31. The first auxiliary crossarm F1 and the second auxiliary crossarm F2 also serve to pass through the conductor. For example, tension hanging points are provided on the first auxiliary crossarm F1 and the second auxiliary crossarm F2.

[0074] For example, such as Figure 4 As shown, the first auxiliary crossarm F1 is the second conductor crossarm 21, the second auxiliary crossarm F2 is the third conductor crossarm 31, and the transmission tower 100 also includes two third auxiliary crossarms F3. The transmission tower 100 can transmit multi-phase conductors or multiple sets of conductors.

[0075] In some implementations, transmission tower 100 is a T-type tower (e.g., Figures 1 to 4 (as shown), or a wine glass-shaped tower (such as...) Figure 5 (As shown).

[0076] For example, transmission tower 100 is a single-circuit straight-line tower or a multi-circuit straight-line tower.

[0077] In some implementations, such as Figure 5 As shown, the transmission tower 100 includes two first conductor crossarms 11 and one intermediate phase crossarm 12Z. The two first conductor crossarms 11 are symmetrically arranged on both sides of the intermediate phase crossarm 12Z in a second direction X, and both first conductor crossarms 11 are connected to the intermediate phase crossarm 12Z. The second direction X is perpendicular to the first direction Y. The tower head 10A includes a tower window 10AT, and the intermediate phase crossarm 12Z is ​​the top crossbeam of the tower window 10AT. The tower head 10A also includes two symmetrically arranged first connecting arms L1 and two symmetrically arranged second connecting arms L2. One end of the intermediate phase crossarm 12Z, one first connecting arm L1, one second connecting arm L2 and the tower body 10B are sequentially connected, and the other end of the intermediate phase crossarm 12Z, one first connecting arm L1, one second connecting arm L2 and the tower body 10B are sequentially connected. The intermediate phase crossarm 12Z includes a first intermediate suspension point 12g1 and a second intermediate suspension point 12g2, and the two second connecting arms L2 have a first intermediate connection point L21 at the connection points with the tower body 10B. The transmission tower 100 includes at least three Y-type insulator strings 60, and each first conductor crossarm 11 is connected to at least one Y-type insulator string 60; the first intermediate suspension point 12g1, the second intermediate suspension point 12g2, and the first intermediate connection point L21 are respectively connected to the three edge connection ends of a Y-type insulator string 60.

[0078] For example, transmission tower 100 is a goblet-shaped tower, but it is not limited to this.

[0079] For example, such as Figure 5 As shown, the intermediate phase crossarm 12Z, a first connecting arm L1, a second connecting arm L2, another second connecting arm L2, and another first connecting arm L1 form the tower window 10AT.

[0080] For example, such as Figure 5 As shown, the tower head 10A has a first end adjacent to the tower body 10B. The first intermediate connection point L21 can be located at the first end, but is not limited to it. Two second connecting arms L2 connect to the first end.

[0081] For example, such as Figure 5 As shown, the transmission tower 100 includes at least three Y-type insulator strings 60, and each first conductor crossarm 11 is connected to at least one Y-type insulator string 60; the first intermediate suspension point 12g1, the second intermediate suspension point 12g2, and the first intermediate connection point L21 are respectively connected to the three edge connection ends of a Y-type insulator string 60. Three-phase electricity can be transmitted. The three Y-type insulator strings 60 can apply a fixing force to the three-phase conductors 71 from three directions: the first insulator segment 611, the second insulator segment 612, and the third insulator segment 613. The fixing force can be tensile stress and / or compressive stress, thereby preventing vertical and horizontal deviation of the three-phase conductors 71.

[0082] In some implementations, such as Figures 1 to 5 As shown, the edge connection end of the first insulator segment 611 is connected to the first hanging point 11g1, and the edge connection end of the second insulator segment 612 is connected to the second hanging point 11g2. The first insulator segment 611 and the second insulator segment 612 have the same length.

[0083] For example, the first insulator segment 611 and the second insulator segment 612 are of the same length, that is, the first insulator segment 611 and the second insulator segment 612 are symmetrically arranged. This allows the first insulator segment 611 and the second insulator segment 612 to uniformly apply force to the conductor 71, such as uniform tensile stress. This can uniformly and symmetrically prevent the conductor 71 from deviating vertically and horizontally.

[0084] In some implementations, such as Figures 1 to 5 As shown, at least two of the first insulator segment 611, the second insulator segment 612, and the third insulator segment 613 are in a stretched state.

[0085] For example, at least two of the first insulator segment 611, the second insulator segment 612, and the third insulator segment 613 are in a tensile working state. When the Y-type insulator string 60 is damaged, at least two of the first insulator segment 611, the second insulator segment 612, and the third insulator segment 613 can still continue to serve. Therefore, it not only improves the wind deflection resistance performance, but also does not damage the original structure of the tower, increases the redundancy of wind deflection resistance, and saves maintenance costs.

[0086] For example, the first insulator segment 611 and the second insulator segment 612 can be in a stretched state, and the third insulator segment 613 can be in a freely extended state. When strong winds come, the third insulator segment 613 can provide tensile stress to prevent the conductor 71 from deviating vertically and horizontally, but it is not limited to this.

[0087] For example, in some embodiments, the first insulator segment 611, the second insulator segment 612, and the third insulator segment 613 are all in a stretched state, which can prevent / reduce the conductor 71 from deviating in any direction.

[0088] It should be noted that the transmission tower 100 / tower head 10A also includes a ground wire crossarm 51. The ground wire crossarm 51 can be connected to the side of the first conductor crossarm 11 away from the tower leg 10C. The ground wire crossarm 51 can include a ground wire suspension point, and the setting method of the ground wire crossarm 51 is not limited to this.

[0089] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0090] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

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