CN103915807A - Windage-yaw-prevention flexible control device for power transmission line - Google Patents
Windage-yaw-prevention flexible control device for power transmission line Download PDFInfo
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- CN103915807A CN103915807A CN201410150390.0A CN201410150390A CN103915807A CN 103915807 A CN103915807 A CN 103915807A CN 201410150390 A CN201410150390 A CN 201410150390A CN 103915807 A CN103915807 A CN 103915807A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 19
- 239000012212 insulator Substances 0.000 claims abstract description 51
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000000725 suspension Substances 0.000 claims abstract description 30
- 229910052742 iron Inorganic materials 0.000 claims abstract description 19
- 230000002265 prevention Effects 0.000 claims description 16
- 230000001681 protective effect Effects 0.000 claims description 13
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 7
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 7
- 241001330002 Bambuseae Species 0.000 claims description 7
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 7
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 7
- 239000011425 bamboo Substances 0.000 claims description 7
- 239000008397 galvanized steel Substances 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 230000007547 defect Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
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Abstract
The invention relates to a windage-yaw-prevention flexible control device for a power transmission line. Compared with the prior art, the defect that an existing windage-yaw-prevention device is not quite effective is overcome. The windage-yaw-prevention comprises a tower cross arm and a wire suspension insulator string installed on the tower cross arm. The other end of the wire suspension insulator string is provided with a pull-down insulator string assembly. A stay wire assembly is installed at the other end of the pull-down insulator string assembly. A control assembly is installed at the other end of the stay wire assembly. The control assembly comprises a pull rod installed on the stay wire assembly. The pull rod penetrates through a pile casing and is installed on the pile casing in a suspended mode through a pull rod protrusion. A brake disc is fixedly installed in the middle of the pull rod. The size of the brake disc is larger than that of the pile casing. A weight block is installed at the lower end of the pull rod. The periphery of the pile casing is fixedly provided with supporting rods, the number of the supporting rods is four, and the supporting rods are fixedly installed on the ground. The windage-yaw-prevention flexible control device is superior to the measure of additionally installing a counter weight and more economical compared with the measure of directly replacing an iron tower.
Description
Technical Field
The invention relates to the technical field of windage yaw prevention of a power transmission line, in particular to a windage yaw prevention flexible control device for the power transmission line.
Background
In recent years, with continuous change of environmental climate, extreme local strong convection weather frequently occurs, so that wind deviation tripping accidents of power transmission lines are frequently caused, and certain influence is caused on safe operation of power grids. In order to solve the problem of line windage yaw tripping, the traditional windage yaw prevention treatment measure is to add a certain number of heavy hammers on a suspension insulator string so as to increase the weight of the insulator string, thereby reducing the deviation of a conducting wire under the condition of strong wind and preventing the live conducting wire from discharging to an iron tower member. The scheme is simple and easy to implement and convenient to construct, but the effect of inhibiting the windage yaw of the lead is not good due to the limited counter weight. And the 'I' iron string tower of the original line is replaced by a three-phase 'V' iron string tower, and although the windage yaw prevention measure is the most thorough and effective treatment measure, if the iron string tower is replaced in a large range, the cost is too high, and the construction period is long. How to develop a wind deviation prevention control device with simple structure and low cost has become a technical problem which needs to be solved urgently.
Disclosure of Invention
The invention aims to solve the defect that no effective wind deflection prevention device exists in the prior art, and provides a wind deflection prevention flexible control device for a power transmission line to solve the problem.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the utility model provides a prevent wind flexible control device partially for transmission line, hang insulator chain including iron tower cross arm and the wire of installing on the iron tower cross arm, the other end that insulator chain was hung to the wire is installed and is drawn down insulator chain subassembly, the subassembly of acting as go-between is installed to the other end of drawing down insulator chain subassembly, control assembly installs control assembly including installing the excellent that draws wire on the subassembly, the excellent that draws runs through protects a section of thick bamboo and hangs through the excellent arch of drawing and install on protecting a section of thick bamboo, excellent middle part fixed mounting has the brake disc of drawing, the size of brake disc is greater than protects a section of thick bamboo, the pouring weight is installed to the lower extreme of drawing the excellent, it has the bracing piece to protect respectively fixed mounting all around of.
The pull wire assembly comprises an upper NUT wire clamp and a lower NUT wire clamp, a galvanized steel strand is mounted at the lower end of the upper NUT wire clamp, a lower NUT wire clamp is mounted at the lower end of the galvanized steel strand, and the lower NUT wire clamp is connected with the upper end of the pull rod.
The pull-down insulator string assembly comprises a connecting plate mounted with the wire suspension insulator string, an upper U-shaped hanging ring is mounted on the connecting plate, the upper U-shaped hanging ring is connected and mounted with a middle U-shaped hanging ring through an extension ring, the middle U-shaped hanging ring is connected and mounted with a lower U-shaped hanging ring through a composite insulator, and the lower U-shaped hanging ring is mounted at the upper end of an upper NUT wire clamp.
The vertical distance from the pull rod protrusion to the weight is smaller than the vertical distance from the pull rod protrusion to the ground.
The multifunctional support is characterized by further comprising 4 bases, wherein the bases are arranged at the installation positions of the support rods on the ground.
The distance between the cross arm of the iron tower and the ground is 33 meters, the length of the lead suspension insulator string is 5 meters, and the brake disc is arranged at a position 0.78 meters away from the protective cylinder.
Advantageous effects
Compared with the prior art, the windage yaw prevention flexible control device for the power transmission line is superior to a measure of additionally arranging a heavy hammer, and is more economical than a measure of directly replacing an iron tower. By setting the movable range of the stay wire assembly and controlling the total weight of the heavy object, the device can play a role in controlling the maximum wind deflection angle of the lead insulator string, and can avoid the damage of a lead cross arm caused by overlarge additional load generated by the stay wire assembly. Has the characteristics of simple structure, obvious effect and low cost.
Drawings
FIG. 1 is a schematic structural view of the present invention in a static state
FIG. 2 is a schematic view of the present invention in a strong wind condition
FIG. 3 is a front view of the control assembly of the present invention
FIG. 4 is a top view of the control assembly of the present invention
FIG. 5 is a front view of the pull-down insulator string assembly of the present invention
FIG. 6 is a front view of the construction of the wire pulling assembly of the present invention
The device comprises a 1-iron tower cross arm, a 2-lead suspension insulator string, a 3-pull-down insulator string component, a 4-stay wire component, a 5-control component, a 6-ground surface, a 31-upper resistance type wire clamp, a 32-yoke plate, a 33-overhang type wire clamp, a 34-upper U-shaped suspension ring, a 35-extension ring, a 36-middle U-shaped suspension ring, a 37-composite insulator, a 38-lower U-shaped suspension ring, a 41-upper NUT wire clamp, a 42-lower NUT wire clamp, a 43-galvanized steel stranded wire, a 51-protective cylinder, a 52-stay, a 53-support rod, a 54-cross brace, a 55-brake disc, a 56-weight, a 57-base and a 58-stay protrusion.
Detailed Description
So that the manner in which the above recited features of the present invention can be understood and readily understood, a more particular description of the invention, briefly summarized above, may be had by reference to embodiments, some of which are illustrated in the appended drawings, wherein:
as shown in fig. 1, the windage yaw prevention flexible control device for the power transmission line comprises an iron tower cross arm 1 and a lead suspension insulator string 2 installed on the iron tower cross arm 1, wherein the lead suspension insulator string 2 is installed on the iron tower cross arm 1 according to a connection mode in the prior art. The other end of the wire suspension insulator string 2 is provided with a pull-down insulator string component 3, the other end of the pull-down insulator string component 3 is provided with a stay wire component 4, and the stay wire component 4 can increase the flexible control of windage yaw prevention when windage occurs. And the other end of the wire pulling assembly 4 is provided with a control assembly 5, and the control assembly 5 is used for controlling the traction of the wire suspension insulator string 2 in strong wind. As shown in fig. 3 and 4, the control assembly 5 includes a pull rod 52 mounted on the pull wire assembly 4, the pull rod 52 being mounted directly on the lower NUT cleat 42 by conventional means to form a coupling attachment between the control assembly 5 and the pull wire assembly 4. The pull rod 52 penetrates through the protective sleeve 51 and is hung on the protective sleeve 51 through the pull rod protrusion 58, the pull rod protrusion 58 is a protrusion arranged on the pull rod 52, when the pull rod 52 is inserted into the protective sleeve 51, the pull rod protrusion 58 is blocked on the protective sleeve 51, and the support of the protective sleeve 51 on the pull rod 52 is ensured. The brake disc 55 is fixedly arranged in the middle of the pull rod 52, the size of the brake disc 55 is larger than that of the protective sleeve 51, the pull rod 52 can be ensured not to be pulled out of the protective sleeve 51, and therefore the pull rod 52 can move up and down on the protective sleeve 51 within a limited range through the pull rod protrusion 58 and the brake disc 55. The brake disc 55 can be installed in the middle of the pull rod 52 or in the middle-lower part, and the specific position is determined according to the site construction requirement and the actual condition of the power transmission tower. The weight 56 is installed at the lower end of the pull rod 52, the weight 56 plays a role in pulling down the pull rod 52 and also plays a role in pulling the conductor suspension insulator string 2 in strong wind, and the specific weight of the weight 56 can be adjusted according to actual requirements. The periphery of the pile casing 51 is respectively and fixedly provided with a support rod 53, the pile casing 51 is supported by the support rods 53, the number of the support rods 53 can be 4, the support rods 53 are respectively arranged on four positions outside the pile casing 51, and the support rods 53 are fixedly arranged on the ground 6 to form a support for the pile casing 51.
For better flexible control of windage yaw, as shown in fig. 6, the wire pulling assembly 4 comprises an upper NUT clamp 41 and a lower NUT clamp 42, the upper end of the upper NUT clamp 41 is connected with the lower U-shaped suspension ring 38 of the pull-down insulator string assembly 3 in a conventional manner, and the lower end of the upper NUT clamp 41 is provided with a galvanized steel strand 43. The galvanized steel strand 43 is provided with a lower NUT clamp 42 at the lower end thereof, and the lower NUT clamp 42 is provided at the upper end of the pull rod 52, thereby forming the connection between the pull wire assembly 4 and the control assembly 5.
For better matching with the transmission line, as shown in fig. 5, the pull-down insulator string assembly 3 includes a connecting plate 32 mounted with the wire suspension insulator string 2, an upper resistance type wire clamp 31 and a suspension type wire clamp 33 can be mounted on the connecting plate 32, an upper U-shaped hanging ring 34 is mounted in the middle of the connecting plate 32, the upper U-shaped hanging ring 34 is connected and mounted with a middle U-shaped hanging ring 36 through an extension ring 35 in a conventional manner, the middle U-shaped hanging ring 36 is connected and mounted with a lower U-shaped hanging ring 38 through a composite insulator 37, and the lower U-shaped hanging ring 38 is mounted at the upper end of an upper NUT wire clamp 41, so that the connection between the pull wire assembly 4 and the pull-down insulator string assembly 3 is formed.
For better flexible control of windage yaw, the vertical distance of pull rod tab 58 to weight 56 in control assembly 5 is less than the vertical distance of pull rod tab 58 to ground 6. Thus, the upper part of the pull rod 52 is hung on the casing 51 through the pull rod protrusion 58, the weight 56 is not in contact with the ground 6, and the weight 56 pulls the pull rod 52 down through the gravity. In order to ensure the stability of the installation of the support rod 53 on the ground 6, a base 57 may be further included, the number of the bases 57 is 4, and the base 57 is provided at the installation position of the support rod 53 on the ground 6. The base 57 increases the mounting strength of the support bar 53 on the floor 6. Cross braces 54 may also be used to mount between the support bars 53, also increasing the mounting connection strength of the support bars 53.
In practical use, when the device is in a static state, if the wire pulling assembly 4 is directly fixed with the ground 6, under the action of wind load, because the lead suspension insulator string 2 cannot generate deviation and cannot generate horizontal force to balance the horizontal wind load, theoretically, the lead suspension insulator string 2 and the wire pulling assembly 4 tend to be infinite. Therefore, in the case of strong wind, the conductor suspension insulator string 2 must be allowed to generate a certain wind drift angle, so that horizontal force can be generated to balance horizontal wind load, and the insufficient part is borne by the stay wire assembly 4. As shown in fig. 1, the pull rod 52 and the upper attached wire assembly 4, etc. are perpendicular to the ground due to the weight 56 at the lower end of the pull rod 52. In a strong wind state, as shown in fig. 2, a wind load acts on the wire suspension insulator string 2 to drive the pull-down insulator string component 3 and the pull wire component 4 to generate an upward pulling force, the pull rod 52 is pulled to move upward, and the wire suspension insulator string generates deflection. The offset increases with increasing wind load. When the offset reaches the control value, the brake disc 55 collides with the bottom of the protective sleeve 51, and the weight of the base 57 starts to act on the wire pulling assembly 4, so that the wire suspension insulator string 2 is prevented from further offsetting. When the wind is reduced or stopped, the pull rod 52 and pull wire assembly 4 return to their original positions under the weight of the weight 56. When the wind speed exceeds a certain value, the pulling force is greater than the gravity of the whole control device, the whole supporting rod 53 of the control assembly 5 deforms and displaces, the additional load of the wire suspension insulator string 2 is not increased any more, and the control assembly 5 deforms to a certain degree, so that the damage to the iron tower cross arm 1 can be avoided.
The principle of the counterweight of the base 57 in the control assembly is: under the action of strong wind, the device can play a role in inhibiting windage yaw of the lead suspension insulator string 2 to the maximum extent, can control the additional load of the stay wire assembly 4, and ensures that the structural safety of the iron tower cross arm 1 is not endangered due to overlarge additional load. Meanwhile, in the design process, the allowable moving range of the stay wire assembly 4, namely the adjustment length, can be calculated according to the cosine law by determining the control wind deflection angle. The specific implementation method is that a brake disc 55 is arranged on the pull rod 52, wherein the distance between the brake disc 55 and the bottom end of the protective sleeve 51 is the allowable moving range of the pull wire. The distance between the iron tower cross arm 1 and the ground is 33 meters, the length of the lead suspension insulator string 2 is 5 meters, and the brake disc 55 is arranged at a position 0.78 meters away from the protective cylinder 51. The calculation formula is as follows:
wherein,the height of the cross arm of the conducting wire,in order to suspend the length of the insulator string,in order to control the wind deflection angle,the movable range of the stay wire is allowed. A stay wire V-shaped tower used on a 500kV transmission line has a wire cross arm height H of 33.0m and a suspension insulator string length lambda of 5.0 m. The maximum allowable wind deflection angle is 41.0 degrees through a drawing method, and the control wind deflection angle alpha is smaller than the maximum allowable wind deflection angle of the wire suspension string, a certain margin is left, and the control wind deflection angle alpha is 30 degrees. Calculating to obtain the allowable moving range of the stay wire, i.e. the adjustment lengthAnd was 0.78 m.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a prevent wind flexible control device that partially inclines for transmission line, includes iron tower cross arm (1) and installs wire insulator chain (2) that dangles on iron tower cross arm (1), and pull-down insulator string subassembly (3) are installed to the other end that the wire dangles insulator chain (2), and pull-line assembly (4), its characterized in that are installed to the other end of pull-down insulator string subassembly (3): control assembly (5) are installed to the other end of acting as go-between subassembly (4), control assembly (5) are including installing pull rod (52) on acting as go-between subassembly (4), pull rod (52) run through protect a section of thick bamboo (51) and through pull rod arch (58) suspended mounting on protecting a section of thick bamboo (51), pull rod (52) middle part fixed mounting has brake disc (55), the size of brake disc (55) is greater than and protects a section of thick bamboo (51), heavy piece (56) are installed to the lower extreme of pulling rod (52), protect respectively fixed mounting all around of a section of thick bamboo (51) have bracing piece (53), the quantity of bracing piece (53) is 4, bracing piece (53) fixed mounting is on ground (6).
2. The windage yaw prevention flexible control device for the power transmission line according to claim 1, characterized in that: the wire pulling assembly (4) comprises an upper NUT wire clamp (41) and a lower NUT wire clamp (42), a galvanized steel strand (43) is installed at the lower end of the upper NUT wire clamp (41), the lower NUT wire clamp (42) is installed at the lower end of the galvanized steel strand (43), and the lower NUT wire clamp (42) is connected with the upper end of a pull rod (52).
3. The windage yaw prevention flexible control device for the power transmission line according to claim 2, characterized in that: the pull-down insulator string component (3) comprises a connecting plate (32) installed with a wire suspension insulator string (2), an upper U-shaped hanging ring (34) is installed on the connecting plate (32), the upper U-shaped hanging ring (34) is connected with a middle U-shaped hanging ring (36) through an extension ring (35), the middle U-shaped hanging ring (36) is connected with a lower U-shaped hanging ring (38) through a composite insulator (37), and the lower U-shaped hanging ring (38) is installed at the upper end of an upper NUT wire clamp (41).
4. The windage yaw prevention flexible control device for the power transmission line according to claim 1, characterized in that: the vertical distance between the pull rod bulge (58) and the weight (56) is smaller than the vertical distance between the pull rod bulge (58) and the ground (6).
5. The windage yaw prevention flexible control device for the power transmission line according to claim 1, characterized in that: the multifunctional support is characterized by further comprising 4 bases (57), wherein the bases (57) are arranged at the installation positions of the support rods (53) on the ground (6).
6. The windage yaw prevention flexible control device for the power transmission line according to claim 3, characterized in that: the distance between the iron tower cross arm (1) and the ground is 33 meters, the length of the lead suspension insulator string (2) is 5 meters, and the brake disc (55) is arranged at a position 0.78 meters away from the protective cylinder (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410150390.0A CN103915807B (en) | 2014-04-16 | 2014-04-16 | A kind of wind-deviation flexible control device for transmission line of electricity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410150390.0A CN103915807B (en) | 2014-04-16 | 2014-04-16 | A kind of wind-deviation flexible control device for transmission line of electricity |
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| Publication Number | Publication Date |
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| CN103915807A true CN103915807A (en) | 2014-07-09 |
| CN103915807B CN103915807B (en) | 2016-08-17 |
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| CN201410150390.0A Active CN103915807B (en) | 2014-04-16 | 2014-04-16 | A kind of wind-deviation flexible control device for transmission line of electricity |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375427A (en) * | 2015-11-24 | 2016-03-02 | 中国电力科学研究院 | Anti-galloping device for single-loop power transmission line |
| CN105406430A (en) * | 2015-11-24 | 2016-03-16 | 中国电力科学研究院 | Anti-galloping apparatus for single-circuit power transmission line |
| CN106370147A (en) * | 2016-08-22 | 2017-02-01 | 国网新疆电力公司电力科学研究院 | Wind deflection based power transmission line's wind deflection early warning system and method |
| CN110912058A (en) * | 2019-12-06 | 2020-03-24 | 中国电力工程顾问集团西南电力设计院有限公司 | Wind deflection prevention semi-V-shaped suspension string |
| CN110970851A (en) * | 2019-12-06 | 2020-04-07 | 中国电力工程顾问集团西南电力设计院有限公司 | Ч type suspension string for preventing wind bias |
| CN114389221A (en) * | 2021-12-30 | 2022-04-22 | 国网河南省电力公司经济技术研究院 | Windage yaw prevention fixing device for double split conductors of power transmission line |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070158093A1 (en) * | 2006-01-10 | 2007-07-12 | Barthold Lionel O | Systems, Methods and Apparatus for Transmission Line Re-Conductoring |
| CN201927974U (en) * | 2010-12-15 | 2011-08-10 | 河南省电力公司漯河供电公司 | Conductor galloping preventing device of power line |
| CN203536907U (en) * | 2013-10-31 | 2014-04-09 | 国家电网公司 | High voltage power transmission line wind deviation-resistant flexible insulation inhaul cable |
| CN203850795U (en) * | 2014-04-16 | 2014-09-24 | 中国能源建设集团安徽省电力设计院 | Windage yaw prevention flexible control device used for power transmission lines |
-
2014
- 2014-04-16 CN CN201410150390.0A patent/CN103915807B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070158093A1 (en) * | 2006-01-10 | 2007-07-12 | Barthold Lionel O | Systems, Methods and Apparatus for Transmission Line Re-Conductoring |
| CN201927974U (en) * | 2010-12-15 | 2011-08-10 | 河南省电力公司漯河供电公司 | Conductor galloping preventing device of power line |
| CN203536907U (en) * | 2013-10-31 | 2014-04-09 | 国家电网公司 | High voltage power transmission line wind deviation-resistant flexible insulation inhaul cable |
| CN203850795U (en) * | 2014-04-16 | 2014-09-24 | 中国能源建设集团安徽省电力设计院 | Windage yaw prevention flexible control device used for power transmission lines |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375427A (en) * | 2015-11-24 | 2016-03-02 | 中国电力科学研究院 | Anti-galloping device for single-loop power transmission line |
| CN105406430A (en) * | 2015-11-24 | 2016-03-16 | 中国电力科学研究院 | Anti-galloping apparatus for single-circuit power transmission line |
| CN105406430B (en) * | 2015-11-24 | 2018-07-10 | 中国电力科学研究院 | A kind of anti-dancing device for single loop transmission line of electricity |
| CN106370147A (en) * | 2016-08-22 | 2017-02-01 | 国网新疆电力公司电力科学研究院 | Wind deflection based power transmission line's wind deflection early warning system and method |
| CN110912058A (en) * | 2019-12-06 | 2020-03-24 | 中国电力工程顾问集团西南电力设计院有限公司 | Wind deflection prevention semi-V-shaped suspension string |
| CN110970851A (en) * | 2019-12-06 | 2020-04-07 | 中国电力工程顾问集团西南电力设计院有限公司 | Ч type suspension string for preventing wind bias |
| CN110970851B (en) * | 2019-12-06 | 2024-04-12 | 中国电力工程顾问集团西南电力设计院有限公司 | Windproof bias-used 'shaped' hanging string |
| CN110912058B (en) * | 2019-12-06 | 2024-04-26 | 中国电力工程顾问集团西南电力设计院有限公司 | Semi-V-shaped suspension string for preventing windage yaw |
| CN114389221A (en) * | 2021-12-30 | 2022-04-22 | 国网河南省电力公司经济技术研究院 | Windage yaw prevention fixing device for double split conductors of power transmission line |
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| CN103915807B (en) | 2016-08-17 |
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