CN111030016B - A hanging string structure - Google Patents
A hanging string structureInfo
- Publication number
- CN111030016B CN111030016B CN201911249396.2A CN201911249396A CN111030016B CN 111030016 B CN111030016 B CN 111030016B CN 201911249396 A CN201911249396 A CN 201911249396A CN 111030016 B CN111030016 B CN 111030016B
- Authority
- CN
- China
- Prior art keywords
- hanging
- suspension
- ring
- plate
- shaped
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/05—Suspension arrangements or devices for electric cables or lines
- H02G7/053—Suspension clamps and clips for electric overhead lines not suspended to a supporting wire
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/20—Spatial arrangements or dispositions of lines or cables on poles, posts or towers
Landscapes
- Insulators (AREA)
Abstract
本发明提供一种悬垂串结构，其将架空输电线路悬挂/锚固于铁塔上，悬垂串结构包括悬垂串左肢、悬垂串右肢、第一环环结构(17)、第二环环结构(9)和悬挂结构；悬垂串左肢位于悬挂结构的左上方，其通过第一环环结构(17)连接悬挂结构，悬垂串右肢位于悬挂结构的右上方，其通过第二环环结构(9)连接悬挂结构，第一环环结构(17)和第二环环结构(9)的尺寸均与悬垂串结构的设计破坏载荷成正比，降低了悬垂串的抢修难度和抢修成本。本发明基于机械强度匹配理论确定了架空输电线路中各组件的失效顺序，保护了架空输电线路其他组件，不会轻易损坏架空输电线路和铁塔，且减少悬垂串的抢修工作量，提高了抢修效率，减少了经济损失。
The present invention provides a suspension string structure, which suspends/anchors an overhead transmission line on an iron tower. The suspension string structure comprises a suspension string left limb, a suspension string right limb, a first ring structure (17), a second ring structure (9) and a suspension structure; the suspension string left limb is located at the upper left of the suspension structure and is connected to the suspension structure via the first ring structure (17); the suspension string right limb is located at the upper right of the suspension structure and is connected to the suspension structure via the second ring structure (9); the sizes of the first ring structure (17) and the second ring structure (9) are proportional to the design failure load of the suspension string structure, thereby reducing the emergency repair difficulty and emergency repair cost of the suspension string. The present invention determines the failure sequence of each component in the overhead transmission line based on the mechanical strength matching theory, protects other components of the overhead transmission line, does not easily damage the overhead transmission line and the iron tower, reduces the emergency repair workload of the suspension string, improves the emergency repair efficiency, and reduces economic losses.
Description
Technical Field
The invention relates to the technical field of power transmission lines, in particular to a suspension string structure.
Background
The hardware string is a structure formed by combining a plurality of hardware, and has the main function of suspending/anchoring an overhead transmission line on an iron tower. The hardware string can be divided into a suspension string, a tension string and a jumper string according to purposes, wherein the hardware string is designed mainly according to line parameters, the suspension string is designed mainly according to the self weight, ice coating, wind load and the like of an overhead transmission line, and the tension string is designed mainly according to the tensile strength of the overhead transmission line. The current suspension string applied to engineering generally adopts a V-shaped suspension string, and the V-shaped suspension string is applied to a tangent tower, so that wind deflection and line-to-line distance can be reduced, swinging of an insulator can be limited, and tower head size and line corridor width are reduced.
In the running process of an actual overhead transmission line, the failure sequence of each component of the suspension string in the prior art cannot be determined for different components with different product values, damage and repair difficulties, so that the suspension string has high repair difficulty and high repair cost.
Disclosure of Invention
In order to overcome the defects of high rush-repair difficulty and high rush-repair cost in the prior art, the invention provides a suspension string structure, which is used for suspending/anchoring an overhead transmission line on an iron tower, and comprises a suspension string left limb, a suspension string right limb, a first ring structure (17), a second ring structure (9) and a suspension structure, wherein the suspension string left limb is positioned at the left upper part of the suspension structure and is connected with the suspension structure through the first ring structure (17), the suspension string right limb is positioned at the right upper part of the suspension structure and is connected with the suspension structure through the second ring structure (9), the sizes of the first ring structure (17) and the second ring structure (9) are in direct proportion to the design damage load of the suspension string structure, and the sizes of the first ring structure (17) and the second ring structure (9) are determined based on the design damage load, so that the suspension string is a weak link, and the rush-repair difficulty and the rush-repair cost of the suspension string are reduced.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The invention provides a suspension string structure, which is used for suspending/anchoring an overhead transmission line on an iron tower and comprises a suspension string left limb, a suspension string right limb, a first annular ring structure (17), a second annular ring structure (9) and a suspension structure;
The left limb of the suspension string is positioned at the left upper part of the suspension structure and is connected with the suspension structure through a first annular ring structure (17), the right limb of the suspension string is positioned at the right upper part of the suspension structure and is connected with the suspension structure through a second annular ring structure (9);
the sizes of the first ring structure (17) and the second ring structure (9) are proportional to the design damage load of the suspension string structure, and the sizes of the first ring structure (17) and the second ring structure (9) are determined based on the design damage load so as to be weak links.
The suspension structure comprises a suspension yoke plate (10), a suspension clamp (11) and a heavy hammer sheet (12);
The hanging yoke plate (10) is provided with hanging holes which are circumferentially distributed in the plane of the hanging yoke plate (10);
the suspension clamp (11) is fixed on the hanging hole through a bolt, and the heavy hammer sheet (12) is fixed on the center of the suspension yoke plate (10) through a bolt.
The suspension clamp (11) comprises a ship-shaped clamp body (13), a clamp pressing plate (14) and a UB hanging plate (15);
The wire clamp pressing plate (14) is used for fixing an overhead transmission line and is connected with the ship-shaped wire clamp body (13) through bolts;
The upper end of the UB hanging plate (15) is provided with a first through hole, the lower end of the UB hanging plate is provided with a second through hole, the upper end of the UB hanging plate (15) is connected with the suspension connecting plate (10) through the first through hole and a bolt, and the lower end of the UB hanging plate is connected with the top of the ship-shaped wire clamp body (13) through the second through hole and the bolt.
The first through holes are cloud-shaped through holes, and the second through holes are round through holes.
The left limb of the suspension string and the right limb of the suspension string respectively comprise an equalizing ring (7), an EB hanging plate (1), a third ring structure (2), a DB adjusting plate (3), a TP adjusting plate (4), a U-shaped hanging ring (16), a ball head hanging ring (5), an insulator (6) and a bowl head hanging plate (8) which are connected through bolts in sequence;
The EB hanging plate (1) is hung on the iron tower, and the equalizing ring (7) is sleeved on the outer side of the insulator (6).
The sizes of the U-shaped hanging ring (16) and the ball-head hanging ring (5) are proportional to the design damage load of the hanging string structure, and the sizes of the U-shaped hanging ring (16) and the ball-head hanging ring (5) are determined based on the design damage load, so that the U-shaped hanging ring and the ball-head hanging ring become weak links.
The first ring structure, the second ring structure and the third ring structure (2) comprise two hanging rings with U-shaped structures which are connected back to back.
One U-shaped hanging ring of the first ring structure/the second ring structure is connected with the bowl head hanging plate (8), and the other U-shaped hanging ring is connected with the hanging connecting plate (10).
One U-shaped hanging ring of the third ring structure (2) is connected with the EB hanging plate (1), and the other U-shaped hanging ring is connected with the DB adjusting plate (3).
The diameters of the U-shaped hanging ring (16), the ball-head hanging ring (5) and the U-shaped hanging ring connected back to back are 18.5 mm-38 mm.
The U-shaped hanging ring, the ball head hanging ring (5) and the hanging ring with the U-shaped structure which are connected back to back are formed through a twice forging process, and the bowl head hanging plate (8) is formed through a forging process and a machining process.
The number of the suspension clamps (11) is 2-8, and the number of the suspension clamps is even;
the centers of the suspension clamps (11) are positioned on the circumference of the same circle.
The actual breaking load of the overhang string structure is more than 1.2 times of the designed breaking load.
Compared with the closest prior art, the technical scheme provided by the invention has the following beneficial effects:
The suspension string structure provided by the invention is used for suspending/anchoring an overhead transmission line on an iron tower, and comprises a suspension string left limb, a suspension string right limb, a first ring structure (17), a second ring structure (9) and a suspension structure, wherein the suspension string left limb is positioned at the left upper part of the suspension structure and is connected with the suspension structure through the first ring structure (17), the suspension string right limb is positioned at the right upper part of the suspension structure and is connected with the suspension structure through the second ring structure (9), the sizes of the first ring structure (17) and the second ring structure (9) are in direct proportion to the design breaking load of the suspension string structure, the sizes of the first ring structure (17) and the second ring structure (9) are determined based on the design breaking load, so that the first ring structure (17) and the second ring structure (9) are weak links, the first ring structure (17) and the second ring structure (9) are set to be weak links, and fail first in extreme or special conditions, and the repair difficulty and the rush repair cost of the suspension string are reduced;
The suspension string structure provided by the invention determines the failure sequence of each component in the overhead transmission line based on the mechanical strength matching theory, can be damaged according to the failure sequence of hardware fittings, insulators, overhead transmission lines and iron towers under extreme or special conditions, protects other components of the overhead transmission line, cannot easily damage the overhead transmission lines and the iron towers, reduces the rush repair workload of the suspension string, improves the rush repair efficiency and reduces the economic loss;
in the suspension string structure provided by the invention, the bowl head hanging plate is formed through a forging process and a machining process, the U-shaped hanging rings in the first ring structure (17) and the second ring structure (9) are formed through a twice forging process, specifically, the strength grades of the rod diameter of the bowl head hanging plate and the rod diameter of the U-shaped hanging ring are reduced, the bowl head hanging plate (8) and the U-shaped hanging ring are both set as weak links, and the failure sequence of each component is ensured;
The invention also sets the suspension clamp as a weak link, namely when unbalanced tension on the left side and the right side of the suspension clamp is overlarge, the overhead transmission line is released along the direction of the overhead transmission line through fracture of the clamp pressing plate (14) or fracture of the bolt, so that the iron tower is prevented from being damaged due to the influence of the tension.
Drawings
FIG. 1 is a schematic view of a pendant string according to an embodiment of the present invention;
FIG. 2 is a front view of a plumb line clip in accordance with an embodiment of the present invention;
FIG. 3 is a side view of a suspension wire clamp in an embodiment of the invention;
FIG. 4 is a front view of a U-shaped link/back-to-back connection in accordance with an embodiment of the present invention;
FIG. 5 is a right side view of a U-shaped link/back-to-back connection in an embodiment of the present invention;
FIG. 6 is a front view of a bowl head hanging plate in an embodiment of the invention;
FIG. 7 is a side view of a bowl head hanging plate in an embodiment of the invention;
FIG. 8 is a top view of a bowl head hanging plate in an embodiment of the invention;
FIG. 9 is a front view of a UB suspension plate in accordance with an embodiment of the present invention;
FIG. 10 is a side view of a UB suspension plate in an embodiment of the present invention;
FIG. 11 is a front view of a ball-end link in accordance with an embodiment of the present invention;
FIG. 12 is a side view of a ball-end suspension loop in accordance with an embodiment of the present invention;
In the figure, 1, EB link plate, 2, third ring structure, 3, DB adjustment plate, 4, TP adjustment plate, 5, bulb link, 6, insulator, 7, equalizer ring, 8, bowl head link plate, 9, second ring structure, 10, suspension link plate, 11, suspension clamp, 12, heavy weight sheet, 13, ship-shaped clamp body, 14, clamp plate, 15, UB link plate, 16, U-shaped link, 17, first ring structure.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
The embodiment of the invention provides a suspension string structure, which is used for suspending/anchoring an overhead transmission line on an iron tower, wherein the suspension string structure is V-shaped and comprises a suspension string left limb, a suspension string right limb, a first ring structure 17, a second ring structure 9 and a suspension structure;
the left limb of the suspension string is positioned at the left upper part of the suspension structure, the suspension structure is connected through the first ring structure 17, the right limb of the suspension string is positioned at the right upper part of the suspension structure, the suspension structure is connected through the second ring structure 9, the sizes of the first ring structure 17 and the second ring structure 9 are proportional to the design damage load of the suspension string structure, and the sizes of the first ring structure 17 and the second ring structure 9 are determined based on the design damage load so as to form a weak link.
The suspension structure comprises a suspension yoke plate 10, a suspension clamp 11 and a heavy hammer sheet 12;
The suspension yoke plate 10 is provided with suspension holes which are circumferentially distributed in the plane of the suspension yoke plate 10;
the suspension clamp 11 is fixed on the hanging hole through a bolt, and the weight plate 12 is fixed on the center of the suspension yoke plate 10 through a bolt.
As shown in fig. 2 and 3, the suspension clamp 11 includes a boat-shaped clamp body 13, a clamp presser 14, and a UB hanger 15;
The wire clamp pressing plate 14 is used for fixing an overhead transmission line, and is connected with the ship-shaped wire clamp body 13 through bolts, namely the overhead transmission line passes through the ship-shaped wire clamp body 13. When the unbalanced tension on the left side and the right side of the suspension clamp is overlarge, the overhead transmission line is released along the direction of the overhead transmission line through the fracture of the clamp pressing plate 14 or the fracture of the bolt, so that the iron tower is ensured not to be damaged due to the tension.
As shown in fig. 9 and 10, the upper end of the UB hanging plate 15 is provided with a first through hole, the lower end thereof is provided with a second through hole, the upper end of the UB hanging plate 15 is connected with the suspension yoke plate 10 through the first through hole and the bolt, and the lower end thereof is connected with the top of the ship-shaped wire clamp body 13 through the second through hole and the bolt.
The first through holes are cloud-shaped through holes, so that the bolts can move relatively in the cloud-shaped through holes, the shape of the first through holes in the embodiment of the invention is shown in the figure 9, and the second through holes are round through holes.
The left limb of the suspension string and the right limb of the suspension string respectively comprise an equalizing ring 7, an EB hanging plate 1, a third ring structure 2, a DB adjusting plate 3, a TP adjusting plate 4, a U-shaped hanging ring 16, a ball head hanging ring 5, an insulator 6 and a bowl head hanging plate 8 which are connected in sequence through bolts;
the EB hanging plate 1 is hung on an iron tower, and the equalizing ring 7 is sleeved on the outer side of the insulator 6.
The third loop structure 2 comprises two loops of U-shaped construction connected back to back.
One U-shaped hanging ring of the first ring structure/the second ring structure is connected with the bowl head hanging plate 8, and the other U-shaped hanging ring is connected with the hanging connecting plate 10.
One U-shaped hanging ring of the third ring structure 2 is connected with the EB hanging plate 1, and the other U-shaped hanging ring is connected with the DB adjusting plate 3.
Because the U-shaped hanging ring 16, the ball-head hanging ring 5 and the hanging ring of the U-shaped structure connected back to back are all in a rod diameter structure, the sizes of the U-shaped hanging ring 16, the ball-head hanging ring 5 and the hanging ring of the U-shaped structure connected back to back are determined based on the designed breaking load of the hanging string structure, the actual breaking load is more than 1.2 times of the designed breaking load, and the embodiment of the invention takes 1.2 times of the designed breaking load, and the method specifically comprises the following steps:
When the design breaking load of the suspension string structure is 210kN, the rod diameters of the U-shaped hanging ring 16, the ball-head hanging ring 5 and the hanging ring of the U-shaped structure connected back to back are all designed to be 18.5mm, and the designed rod diameters can lead the actual breaking load to reach 252kN, and the U-shaped hanging ring 16, the ball-head hanging ring 5 and the hanging ring of the U-shaped structure connected back to back are broken;
When the damage load of the suspension string structure is 550kN, the rod diameters of the U-shaped hanging ring 16, the ball-head hanging ring 5 and the hanging ring of the U-shaped structure connected back to back are all designed to be 28mm, and the designed rod diameters can lead the actual damage load to reach 660kN, and the U-shaped hanging ring 16, the ball-head hanging ring 5 and the hanging ring of the U-shaped structure connected back to back are damaged;
When the damage load of the suspension string structure is 840kN, the rod diameters of the U-shaped hanging ring 16, the ball-head hanging ring 5 and the hanging ring of the U-shaped structure connected back to back are 38mm, and the designed rod diameters can lead the actual damage load to reach 1008kN, and the U-shaped hanging ring 16, the ball-head hanging ring 5 and the hanging ring of the U-shaped structure connected back to back are damaged;
In order to design the above-mentioned dimensions, the U-shaped hanging ring 16, the ball-end hanging ring 5 and the hanging ring with the back-to-back connected U-shaped structure are all formed by two forging processes, so that the strength grade of the rod diameters of the U-shaped hanging ring 16, the ball-end hanging ring 5 and the hanging ring with the back-to-back connected U-shaped structure can be reduced, the specific structure of the U-shaped hanging ring 16/the hanging ring with the back-to-back connected U-shaped structure is shown in fig. 4 and 5, the specific structure of the ball-end hanging ring 5 is shown in fig. 11 and 12, the bowl head hanging plate 8 is formed by the forging process and the machining process, the strength grade of the rod diameter of the bowl head hanging plate 8 is reduced, and the specific structure of the bowl head hanging plate 8 is shown in fig. 6-8. The ball head hanging ring 5, the bowl head hanging plate 8 and the U-shaped hanging ring are all set to be weak links, so that the failure sequence of each component is ensured.
The number of the suspension clamps 11 is 2-8 and even, in the embodiment of the invention, 6 suspension clamps are adopted, as shown in fig. 1, and the centers of the suspension clamps 11 are positioned on the circumference of the same circle.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and that a person skilled in the art may still make modifications and equivalents to the specific embodiments of the present invention with reference to the above-mentioned embodiments, and any modifications and equivalents not departing from the spirit and scope of the present invention are within the scope of the invention as claimed in the pending application.
Claims (7)
1. The suspension string structure is characterized in that the suspension string structure is used for suspending/anchoring an overhead transmission line on an iron tower and comprises a suspension string left limb, a suspension string right limb, a first annular ring structure (17), a second annular ring structure (9) and a suspension structure;
The left limb of the suspension string is positioned at the left upper part of the suspension structure and is connected with the suspension structure through a first annular ring structure (17), the right limb of the suspension string is positioned at the right upper part of the suspension structure and is connected with the suspension structure through a second annular ring structure (9);
The sizes of the first ring structure (17) and the second ring structure (9) are proportional to the design damage load of the suspension string structure, and the sizes of the first ring structure (17) and the second ring structure (9) are determined based on the design damage load so as to be weak links;
The hanging structure comprises a hanging yoke plate (10), hanging wire clamps (11) and a heavy hammer sheet (12), wherein hanging holes are formed in the hanging yoke plate (10), the hanging holes are circumferentially distributed in the plane of the hanging yoke plate (10), the hanging wire clamps (11) are fixed on the hanging holes through bolts, and the heavy hammer sheet (12) is fixed at the central position of the hanging yoke plate (10) through bolts;
the pressing plate or the bolt of the suspension clamp breaks and releases the lead when unbalanced tension on the left side and the right side is overlarge; the actual damage load of the suspension string structure is more than 1.2 times of the designed damage load;
The device comprises an iron tower, a suspension string left limb and a suspension string right limb, wherein the suspension string left limb and the suspension string right limb comprise an equalizing ring (7), an EB hanging plate (1), a third ring structure (2), a DB adjusting plate (3), a TP adjusting plate (4), a U-shaped hanging ring (16), a ball head hanging ring (5), an insulator (6) and a bowl head hanging plate (8) which are sequentially connected through bolts, the EB hanging plate (1) is hung on the iron tower, the equalizing ring (7) is sleeved on the outer side of the insulator (6), the sizes of the U-shaped hanging ring (16) and the ball head hanging ring (5) are in direct proportion to the design damage load of the suspension string structure, and the sizes of the U-shaped hanging ring (16) and the ball head hanging ring (5) are determined based on the design damage load so as to be a weak link;
The first ring structure, the second ring structure and the third ring structure (2) comprise U-shaped hanging rings of two back-to-back connected structures;
One U-shaped hanging ring of the first ring structure/the second ring structure is connected with the bowl head hanging plate (8), and the other U-shaped hanging ring is connected with the hanging connecting plate (10);
The U-shaped hanging ring, the ball head hanging ring (5) and the hanging ring with the U-shaped structure which are connected back to back are all formed through a twice forging process, and the bowl head hanging plate (8) is formed through a forging process and a machining process.
2. The catenary configuration of claim 1, wherein the catenary (10) is a six-split catenary.
3. The suspension string structure according to claim 1, characterized in that the suspension clamp (11) comprises a boat-shaped clamp body (13), a clamp presser plate (14) and a UB hanger plate (15);
The wire clamp pressing plate (14) is used for fixing an overhead transmission line and is connected with the ship-shaped wire clamp body (13) through bolts;
The upper end of the UB hanging plate (15) is provided with a first through hole, the lower end of the UB hanging plate is provided with a second through hole, the upper end of the UB hanging plate (15) is connected with the suspension connecting plate (10) through the first through hole and a bolt, and the lower end of the UB hanging plate is connected with the top of the ship-shaped wire clamp body (13) through the second through hole and the bolt.
4. The catenary structure of claim 3, wherein the first via is a cloud-like via and the second via is a circular via.
5. The hanging string structure according to claim 1, wherein one of the U-shaped hanging rings of the third ring structure (2) is connected with the EB hanging plate (1), and the other U-shaped hanging ring is connected with the DB adjusting plate (3).
6. The hanging string structure according to claim 1, wherein the rod diameters of the U-shaped hanging ring (16), the ball-head hanging ring (5) and the back-to-back connected U-shaped hanging ring are 18.5 mm-38 mm.
7. The suspension string structure according to claim 1, characterized in that the number of suspension clamps (11) is 2-8 and is an even number;
The centers of the suspension clamps (11) are positioned on the circumference of the same circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911249396.2A CN111030016B (en) | 2019-12-09 | 2019-12-09 | A hanging string structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911249396.2A CN111030016B (en) | 2019-12-09 | 2019-12-09 | A hanging string structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111030016A CN111030016A (en) | 2020-04-17 |
| CN111030016B true CN111030016B (en) | 2025-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911249396.2A Active CN111030016B (en) | 2019-12-09 | 2019-12-09 | A hanging string structure |
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| Country | Link |
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| CN (1) | CN111030016B (en) |
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|---|---|---|---|---|
| JPH05292636A (en) * | 1992-04-09 | 1993-11-05 | Furukawa Electric Co Ltd:The | Overhead power line suspension support device |
| CN104376934A (en) * | 2014-11-20 | 2015-02-25 | 国家电网公司 | Compact type tri-connection V-shaped suspension string for light-ice area |
| CN110137889A (en) * | 2019-06-21 | 2019-08-16 | 陕西臻源电力科技服务有限公司 | A kind of anti-dancing device of New Damping type |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2001037056A (en) * | 1999-07-19 | 2001-02-09 | Seiichiro Hirano | Method for lightening iron tower by narrow wire interval |
| US7290748B2 (en) * | 2003-10-15 | 2007-11-06 | Mcdonald Richard Alan | Breakaway support for overhead lines |
| CN101521363B (en) * | 2008-02-26 | 2011-05-25 | 北京国网富达科技发展有限责任公司 | Protecting method, device and system for electric power pylon |
| CN201188525Y (en) * | 2008-03-11 | 2009-01-28 | 成都电力金具总厂 | Suspension loop for bowls head |
| CN201549282U (en) * | 2009-09-18 | 2010-08-11 | 成都电力金具总厂 | Single-joint V-shaped suspension insulator string used for UHV transmission line |
| CN203260430U (en) * | 2013-04-18 | 2013-10-30 | 中国电力工程顾问集团中南电力设计院 | Suspension insulator string applicable to large height difference |
| CN206673527U (en) * | 2017-05-03 | 2017-11-24 | 中国电力工程顾问集团西南电力设计院有限公司 | A kind of scissors crossing double hanging point ground wire strain insulator-string |
| CN209184193U (en) * | 2018-10-08 | 2019-07-30 | 国核电力规划设计研究院有限公司 | Duplex suspension string |
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2019
- 2019-12-09 CN CN201911249396.2A patent/CN111030016B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05292636A (en) * | 1992-04-09 | 1993-11-05 | Furukawa Electric Co Ltd:The | Overhead power line suspension support device |
| CN104376934A (en) * | 2014-11-20 | 2015-02-25 | 国家电网公司 | Compact type tri-connection V-shaped suspension string for light-ice area |
| CN110137889A (en) * | 2019-06-21 | 2019-08-16 | 陕西臻源电力科技服务有限公司 | A kind of anti-dancing device of New Damping type |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111030016A (en) | 2020-04-17 |
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