CN117353198A - Tool and method for vertically rotating and replacing direct current grounding electrode line tension string - Google Patents
Tool and method for vertically rotating and replacing direct current grounding electrode line tension string Download PDFInfo
- Publication number
- CN117353198A CN117353198A CN202311144701.8A CN202311144701A CN117353198A CN 117353198 A CN117353198 A CN 117353198A CN 202311144701 A CN202311144701 A CN 202311144701A CN 117353198 A CN117353198 A CN 117353198A
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- clamp
- tool
- rod
- string
- strain insulator
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- 238000000034 method Methods 0.000 title claims description 9
- 230000006835 compression Effects 0.000 claims abstract description 43
- 238000007906 compression Methods 0.000 claims abstract description 43
- 239000012211 strain insulator Substances 0.000 claims description 25
- 239000012212 insulator Substances 0.000 claims description 6
- 239000011810 insulating material Substances 0.000 claims description 4
- 244000043261 Hevea brasiliensis Species 0.000 claims description 3
- 229920003052 natural elastomer Polymers 0.000 claims description 3
- 229920001194 natural rubber Polymers 0.000 claims description 3
- -1 polysiloxane Polymers 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 239000007779 soft material Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 208000025274 Lightning injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
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
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
Landscapes
- Electric Cable Installation (AREA)
Abstract
The invention relates to the field of power transmission overhaul and discloses a tool for vertically and rotatably replacing a direct current grounding electrode line tension string, which comprises a replacement tool arranged on the tension string, wherein the replacement tool comprises a first clamp and a second clamp, the first clamp is arranged on a power line, and the second clamp is arranged on a power tower truss; the first clamp comprises a first strut; the first compression block is connected with the first supporting rod; the pressing rod is hinged with the first pressing block, and the pressing rod and the first pressing block are clamped on the electric wire; the second clamp includes a second strut. According to the invention, the replacement tool is arranged, when the old tension string is required to be replaced, the replacement tool is clamped on the electric wire and the electric power tower truss, and then the electric wire and the electric power tower truss are tensioned by rotating the adjusting rod, so that the tension force born by the tension string is transferred, and the tension string is convenient to replace.
Description
Technical Field
The invention relates to the technical field of power transmission overhaul, in particular to a tool and a method for vertically rotating and replacing a direct current grounding electrode line strain string.
Background
The strain insulator string is short for strain insulator string, and is an electric power fitting. The cable is formed by combining an insulator string, a strain clamp, a connecting fitting and a protection fitting, and is used for tensioning a lead (ground) and can bear strings (groups) with specified mechanical load and electrical load. The main material is ceramic or a series of insulating materials;
the reasons for the replacement of the strain insulator-string mainly include the following points:
the strain insulator string is used as an element for connecting an overhead line and a pole tower, bears line tension for a long time, is exposed outdoors, and is easy to age, wear and damage;
due to the reasons of faults such as line short circuit or lightning stroke, the insulators on the tension string can be broken, and the insulators need to be replaced at the moment;
some tension strings may break or deform due to the influence of self weight or external environment during use, and in this case, the tension strings also need to be replaced;
the existing replacement is to directly detach the tension string from the circuit, and the tension force received by the tension string can be directly transferred to the hands of the detachment worker, so that the operation is not easy.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a tool and a method for vertically rotating and replacing a direct current grounding electrode line strain insulator string, which are used for solving the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the tool comprises a replacement tool which is installed on the tension string, wherein the replacement tool comprises a first clamp and a second clamp, the first clamp is installed on a wire, and the second clamp is installed on a power tower truss;
the first clamp includes:
a first strut;
the first compression block is connected with the first supporting rod;
the pressing rod is hinged with the first pressing block, and the pressing rod and the first pressing block are clamped on the electric wire;
the second clamp includes:
a second strut;
the second compression block is connected with the second supporting rod;
the clamping rod is clamped on the power tower truss;
an adjusting rod is connected between the second supporting rod and the first supporting rod, one end of the adjusting rod is rotationally connected with the first supporting rod, and the other end of the adjusting rod is in threaded connection with the top of the second supporting rod;
when one end of the adjusting rod and the second supporting rod rotate, the distance between the second supporting rod and the first supporting rod is reduced under the action of the threads, so that the tensile force borne by the tension string is transferred to the first supporting rod, the second supporting rod and the adjusting rod.
Preferably, the first compression block and the second compression block are provided with a recess at one end contacted with the electric wire, and the recess is matched with the shape of the electric wire, so that the effect of increasing the contact area with the electric wire is achieved.
Preferably, the first compression block and the second compression block are made of insulating materials.
Preferably, the first compression block and the second compression block are made of silicon rubber, polysiloxane, natural rubber or a high-voltage insulator.
Preferably, the top of the pressing rod is provided with a clamping piece, the clamping piece has toughness, and when the pressing rod is attached to the electric wire, the clamping piece is clamped on the outer wall of the electric wire.
Preferably, the hinge posts are mounted at two ends of the first compression block, one end, close to the hinge posts, of the compression rod is provided with the hinge block, and the hinge block is hinged with the hinge posts.
Preferably, one end of the first compression block is connected with a sliding sleeve, the hinge post is in sliding connection with the sliding sleeve, and a first spring is connected between one end of the hinge post and the inner wall of the sliding sleeve.
Preferably, a soft pad is arranged on one side of the pressing rod, which is close to the electric wire, and the soft pad is made of soft materials.
Preferably, the bottom of compressing tightly the pole is provided with the recess that matches with strain insulator-string shape, the bottom of compressing tightly the pole still is provided with the threaded rod, the threaded rod is used for establishing the compressing tightly the pole card at the outer wall of strain insulator-string.
Preferably, the bottom of chucking pole is provided with the expansion plate, be connected with the second spring between the bottom of expansion plate's top and chucking pole, expansion plate and chucking pole are with electric power tower truss clamp.
Preferably, the top of the second supporting rod is provided with a threaded hole, one end of the adjusting rod is in threaded connection with the threaded hole, the top of the first supporting rod is provided with a rotating hole, and the other end of the adjusting rod is in rotating connection with the rotating hole.
Preferably, a semicircular groove is formed in one end, close to the electric wire, of the second compression block, and the semicircular groove is in contact with the outer wall of the electric wire.
Preferably, a hanging rope is arranged in the middle of the tension string, hanging rings and hooks are respectively arranged at two ends of the hanging rope, and the hanging rope is sleeved on the adjusting rod.
Preferably, the two ends of the tension string are provided with ball heads, and the ball heads are electrically connected with the electric wires.
Preferably, the ball head is provided with a mounting groove, the end part of the electric wire is provided with a mounting block, and the mounting block is clamped and mounted in the mounting groove.
Preferably, coaxial pin holes are formed in the ball head and the mounting block, and bolts are mounted in the pin holes.
A method for vertically rotating and replacing a direct current grounding electrode line strain insulator string comprises the following steps:
step one: hoisting the replacement tool to the vicinity of the tension string to be replaced through hoisting equipment;
step two: the first clamp and the second clamp are respectively arranged on the electric wire and the electric tower truss;
step three: rotating the adjusting rod to drive the second clamp to move towards the direction of the first clamp, so that the first clamp and the second clamp are close to each other, and the tensile force borne by the tension string is transferred to the first clamp and the second clamp;
step four: pulling out the bolt, then separating the mounting block from the mounting groove, and disassembling the old tension string;
step five: and installing a new strain insulator string, and then detaching the replacement tool from the electric wire and the power tower truss to complete replacement.
Compared with the prior art, the invention provides a tool and a method for vertically rotating and replacing a direct current grounding electrode line strain insulator string, which have the following beneficial effects:
1. according to the invention, the replacement tool is arranged, when the old tension string is required to be replaced, the replacement tool is clamped on the electric wire and the electric power tower truss, and then the electric wire and the electric power tower truss are tensioned by rotating the adjusting rod, so that the tension force born by the tension string is transferred, and the tension string is convenient to replace.
2. According to the invention, the first clamp and the second clamp are arranged, the first clamp is clamped on the electric wire, and the second clamp is clamped and installed on the electric power tower truss, so that the installation can be completed, the operation is convenient, the disassembly procedure is simplified, and the speed of replacing the tension string is improved.
3. According to the invention, the hanging rope is arranged in the middle of the tension string, so that the tension string can be hung up, and the hanging rope can be lapped on the adjusting rod, so that the tension string is needed to be lifted manually, the burden of workers is reduced, the tension string is not easy to drop, and the safety is improved.
4. According to the invention, the first compression block and the compression rod are arranged, the hinge column is arranged at the bottom of the first compression block and is connected with the bottom of the first compression block through the first spring, so that the compression rod can be conveniently installed or detached from the first compression block, the first compression block and the second compression block are conveniently installed on a wire, and the working efficiency is improved.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a perspective view of a first clamp of the present invention;
FIG. 3 is a perspective view of a second clamp of the present invention;
FIG. 4 is a block diagram of a hoist rope of the present invention;
FIG. 5 is a schematic diagram of the installation of a strain insulator string and electrical wires of the present invention;
FIG. 6 is a perspective view of another view of the present invention;
FIG. 7 is another perspective view of a second clamp of the present invention;
fig. 8 is an exploded view of a second clamp of the present invention.
In the figure: 100. tension string; 110. an electric wire; 120. ball head; 130. a mounting groove; 140. a mounting block; 150. a plug pin; 160. a power tower truss; 200. a first clamp; 210. a first strut; 220. a first compression block; 230. a pressing rod; 240. a groove; 250. a threaded rod; 260. a hinge block; 270. a hinge post; 280. a sliding sleeve; 290. a first spring; 300. a second clamp; 310. a second strut; 320. a clamping rod; 330. a telescoping plate; 340. a second spring; 350. a second compression block; 360. a threaded hole; 410. a hanging rope; 420. hanging rings; 430. a hook.
Detailed Description
Example 1
Referring to fig. 1-8, the present embodiment provides a tool for vertically rotating and replacing a tension string of a dc ground pole line, comprising a replacing tool mounted on the tension string 100, the replacing tool comprising a first clamp 200 and a second clamp 300, the first clamp 200 being mounted on a wire 110, the second clamp 300 being mounted on a power tower truss 160;
the first jig 200 includes:
a first strut 210;
a first compression block 220, the first compression block 220 being connected to the first strut 210;
the pressing rod 230 is hinged with the first pressing block 220, and the pressing rod 230 and the first pressing block 220 are clamped on the electric wire 110;
the second jig 300 includes:
a second strut 310;
a second compression block 350, the second compression block 350 being connected to the second strut 310;
the clamping rod 320 is clamped on the power tower truss 160;
an adjusting rod 370 is connected between the second support rod 310 and the first support rod 210, one end of the adjusting rod 370 is rotatably connected with the first support rod 210, and the other end of the adjusting rod 370 is in threaded connection with the top of the second support rod 310;
when one end of the adjusting rod 370 rotates with the second supporting rod 310, the distance between the second supporting rod 310 and the first supporting rod 210 is reduced under the action of the screw thread, so that the tensile force applied to the tension string 100 is transferred to the first supporting rod 210, the second supporting rod 310 and the adjusting rod 370.
Example two
As shown in fig. 2, the first and second pressing blocks 220 and 350 are provided with recesses at one end contacting the electric wire 110, and the recesses are matched with the shape of the electric wire 110, and function to increase the contact area with the electric wire 110.
The first and second compression blocks 220 and 350 are made of an insulating material.
The first and second pressing blocks 220 and 350 are made of silicone rubber, polysiloxane, natural rubber or high-voltage insulator.
Example III
As shown in fig. 2, a clamping piece 231 is disposed at the top of the pressing rod 230, and the clamping piece 231 has toughness, and when the pressing rod 230 is attached to the electric wire 110, the clamping piece 231 is clamped on the outer wall of the electric wire 110.
Example IV
As shown in fig. 2, the two ends of the first compression block 220 are provided with hinge posts 270, one end of the compression rod 230, which is close to the hinge posts 270, is provided with a hinge block 260, and the hinge block 260 is hinged with the hinge posts 270;
one end of the first compression block 220 is connected with a sliding sleeve 280, the hinge post 270 is slidably connected with the sliding sleeve 280, and a first spring 290 is connected between one end of the hinge post 270 and the inner wall of the sliding sleeve 280.
Example five
As shown in fig. 2, the pressing rod 230 has a soft pad 232 at a side near the electric wire 110, and the soft pad 232 is made of soft material.
As shown in fig. 2, the bottom end of the pressing rod 230 is provided with a groove 240 matching the shape of the tension string 100, the bottom end of the pressing rod 230 is further provided with a threaded rod 250, and the threaded rod 250 is used for clamping the pressing rod 230 on the outer wall of the tension string 100.
Example six
As shown in fig. 3, the bottom of the clamping rod 320 is provided with a telescopic plate 330, a second spring 340 is connected between the top of the telescopic plate 330 and the bottom of the clamping rod 320, and the telescopic plate 330 and the clamping rod 320 clamp the power tower truss 160.
As shown in fig. 3, the top of the second supporting rod 310 is provided with a threaded hole 360, one end of the adjusting rod 370 is in threaded connection with the threaded hole 360, the top of the first supporting rod 210 is provided with a rotating hole, and the other end of the adjusting rod 370 is in rotating connection with the rotating hole.
As shown in fig. 3, the second pressing block 350 is provided with a semicircular groove near one end of the electric wire 110, and the semicircular groove is in contact with the outer wall of the electric wire 110.
Example seven
As shown in fig. 4, a hanging rope 410 is disposed in the middle of the tension string 100, two ends of the hanging rope 410 are respectively provided with a hanging ring 420 and a hanging hook 430, and the hanging rope 410 is sleeved on the adjusting rod 370.
Example eight
As shown in fig. 5, the two ends of the tension string 100 are provided with ball heads 120, and the ball heads 120 are electrically connected with the electric wires 110.
As shown in fig. 5, the ball head 120 is provided with a mounting groove 130, an end of the electric wire 110 is provided with a mounting block 140, and the mounting block 140 is clamped and mounted in the mounting groove 130.
As shown in fig. 5, coaxial pin holes are formed on the ball head 120 and the mounting block 140, and a plug 150 is mounted in the pin holes.
Example nine
As shown in fig. 6, 7 and 8, the present embodiment provides a method for replacing a direct current grounding electrode line strain insulator string by vertical rotation, which includes the following steps:
step one: hoisting the replacement tool to the vicinity of the tension string 100 to be replaced by hoisting equipment;
step two: mounting the first jig 200 and the second jig 300 on the electric wire 110 and the power tower truss 160, respectively;
step three: rotating the adjusting rod 370 to drive the second clamp 300 to move towards the first clamp 200, so that the first clamp 200 and the second clamp 300 are close to each other, and the tensile force applied to the tension string 100 is transferred to the first clamp 200 and the second clamp 300;
step four: pulling out the bolt 150, then disengaging the mounting block 140 from the mounting groove 130, and disassembling the old tension string 100;
step five: the new strain insulator-string 100 is installed and then the replacement tool is removed from the electrical wire 110 and the power tower truss 160 to complete the replacement.
Claims (14)
1. The utility model provides a vertical rotation changes instrument of direct current earthing pole circuit strain insulator string which characterized in that: comprises a replacement tool mounted on the tension string (100), wherein the replacement tool comprises a first clamp (200) and a second clamp (300), the first clamp (200) is mounted on the electric wire (110), and the second clamp (300) is mounted on the power tower truss (160);
the first jig (200) includes:
a first strut (210);
a first compression block (220), the first compression block (220) being connected to the first strut (210);
the pressing rod (230) is hinged with the first pressing block (220), and the pressing rod (230) and the first pressing block (220) are clamped on the electric wire (110);
the second jig (300) includes:
a second strut (310);
a second compression block (350), the second compression block (350) being connected to the second strut (310);
the clamping rod (320) is clamped on the power tower truss (160);
an adjusting rod (370) is connected between the second supporting rod (310) and the first supporting rod (210), one end of the adjusting rod (370) is rotationally connected with the first supporting rod (210), and the other end of the adjusting rod (370) is in threaded connection with the top of the second supporting rod (310);
when one end of the adjusting rod (370) and the second supporting rod (310) rotate, the distance between the second supporting rod (310) and the first supporting rod (210) is reduced under the action of threads, so that the tensile force born by the tension string (100) is transferred to the first supporting rod (210), the second supporting rod (310) and the adjusting rod (370);
one end of the first compression block (220) and the second compression block (350) which are contacted with the electric wire (110) is provided with a recess, the recess is matched with the shape of the electric wire (110), and the function of increasing the contact area with the electric wire (110) is achieved;
the top of the pressing rod (230) is provided with a clamping piece (231), the clamping piece (231) has toughness, and when the pressing rod (230) is attached to the electric wire (110), the clamping piece (231) is clamped on the outer wall of the electric wire (110);
the bottom of compressing tightly pole (230) is provided with recess (240) with strain insulator-string (100) shape matching, the bottom of compressing tightly pole (230) still is provided with threaded rod (250), threaded rod (250) are used for establishing compressing tightly pole (230) card at the outer wall of strain insulator-string (100).
2. The tool for vertically rotating replacement of a direct current earth line strain insulator string of claim 1, wherein: the first and second compression blocks (220, 350) are made of an insulating material.
3. The tool for vertically rotating replacement of a direct current earth line strain insulator string of claim 2, wherein: the first compression block (220) and the second compression block (350) are made of silicon rubber, polysiloxane, natural rubber or a high-voltage insulator.
4. The tool for vertically rotating replacement of a direct current earth line strain insulator string of claim 1, wherein: the two ends of the first compression block (220) are provided with hinge columns (270), one end, close to the hinge columns (270), of the compression rod (230) is provided with a hinge block (260), and the hinge block (260) is hinged with the hinge columns (270).
5. The tool for vertically rotating and replacing a direct current earth line strain insulator string of claim 4, wherein: one end of the first compression block (220) is connected with a sliding sleeve (280), the hinge post (270) is in sliding connection with the sliding sleeve (280), and a first spring (290) is connected between one end of the hinge post (270) and the inner wall of the sliding sleeve (280).
6. The tool for vertically rotating replacement of a direct current earth line strain insulator string of claim 1, wherein: a soft cushion (232) is arranged on one side of the pressing rod (230) close to the electric wire (110), and the soft cushion (232) is made of soft materials.
7. The tool for vertically rotating replacement of a direct current earth line strain insulator string of claim 1, wherein: the bottom of chucking pole (320) is provided with expansion plate (330), be connected with second spring (340) between the top of expansion plate (330) and the bottom of chucking pole (320), expansion plate (330) and chucking pole (320) are with electric power tower truss (160) centre gripping.
8. The tool for vertically rotating replacement of a direct current earth line strain insulator string of claim 1, wherein: screw holes (360) are formed in the tops of the second support rods (310), one end of each adjusting rod (370) is connected with one screw hole (360) in a threaded mode, rotating holes are formed in the tops of the first support rods (210), and the other ends of the adjusting rods (370) are connected with the rotating holes in a rotating mode.
9. The tool for vertically rotating replacement of a direct current earth line strain insulator string of claim 1, wherein: and a semicircular groove is formed in one end, close to the electric wire (110), of the second pressing block (350), and the semicircular groove is in contact with the outer wall of the electric wire (110).
10. The tool for vertically rotating replacement of a direct current earth line strain insulator string of claim 1, wherein: the middle part of strain insulator string (100) is provided with lifting rope (410), both ends of lifting rope (410) are provided with link (420) and couple (430) respectively, lifting rope (410) cover is established on adjusting pole (370).
11. The tool for vertically rotating replacement of a direct current earth line strain insulator string of claim 1, wherein: two ends of the tension string (100) are provided with ball heads (120), and the ball heads (120) are electrically connected with the electric wires (110).
12. The tool for vertically rotating replacement of a dc ground link strain insulator string of claim 11, wherein: the ball head (120) is provided with a mounting groove (130), the end part of the wire (110) is provided with a mounting block (140), and the mounting block (140) is clamped and mounted in the mounting groove (130).
13. The tool for vertically rotating replacement of a dc ground link strain insulator string of claim 12, wherein: coaxial pin holes are formed in the ball head (120) and the mounting block (140), and bolts (150) are arranged in the pin holes.
14. The method for vertically rotating and replacing the direct current grounding electrode line strain insulator string is characterized by comprising the following steps of:
step one: hoisting the replacement tool to the vicinity of the tension string (100) to be replaced through hoisting equipment;
step two: mounting a first clamp (200) and a second clamp (300) on the electric wire (110) and the power tower truss (160), respectively;
step three: rotating the adjusting rod (370) to drive the second clamp (300) to move towards the direction of the first clamp (200), so that the first clamp (200) and the second clamp (300) are close to each other, and the tensile force applied to the tension string (100) is transferred to the first clamp (200) and the second clamp (300);
step four: pulling out the bolt (150), then disengaging the mounting block (140) from the mounting groove (130), and disassembling the old tension string (100);
step five: the new strain insulator string (100) is installed, and then the replacement tool is removed from the electrical wire (110) and the power tower truss (160) to complete the replacement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311144701.8A CN117353198B (en) | 2023-09-06 | 2023-09-06 | Tool and method for vertically rotating and replacing direct current grounding electrode line tension string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311144701.8A CN117353198B (en) | 2023-09-06 | 2023-09-06 | Tool and method for vertically rotating and replacing direct current grounding electrode line tension string |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117353198A true CN117353198A (en) | 2024-01-05 |
| CN117353198B CN117353198B (en) | 2024-04-26 |
Family
ID=89358349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311144701.8A Active CN117353198B (en) | 2023-09-06 | 2023-09-06 | Tool and method for vertically rotating and replacing direct current grounding electrode line tension string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117353198B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016050529A1 (en) * | 2014-09-30 | 2016-04-07 | Siemens Aktiengesellschaft | Attachment apparatus for an insulator |
| KR101964303B1 (en) * | 2018-09-10 | 2019-04-01 | 서천전기공사 (주) | Connection stabilization device of extra high voltage transmission line |
| CN110943400A (en) * | 2019-12-30 | 2020-03-31 | 国网辽宁省电力有限公司鞍山供电公司 | 10 kilovolt wire tension string replacement hardware fitting in live line |
| CN111162483A (en) * | 2020-02-12 | 2020-05-15 | 广东电网有限责任公司电力科学研究院 | Stress application replacing device for lead screw of insulator of angle steel cross arm |
| CN112249950A (en) * | 2020-11-05 | 2021-01-22 | 国网湖南省电力有限公司 | Hanging bracket and method for live replacement of any insulator of extra-high voltage strain insulator string |
| CN219067678U (en) * | 2022-09-26 | 2023-05-23 | 刘锐 | General maintenance tool for side end part of extra-high voltage tension insulator wire |
-
2023
- 2023-09-06 CN CN202311144701.8A patent/CN117353198B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016050529A1 (en) * | 2014-09-30 | 2016-04-07 | Siemens Aktiengesellschaft | Attachment apparatus for an insulator |
| KR101964303B1 (en) * | 2018-09-10 | 2019-04-01 | 서천전기공사 (주) | Connection stabilization device of extra high voltage transmission line |
| CN110943400A (en) * | 2019-12-30 | 2020-03-31 | 国网辽宁省电力有限公司鞍山供电公司 | 10 kilovolt wire tension string replacement hardware fitting in live line |
| CN111162483A (en) * | 2020-02-12 | 2020-05-15 | 广东电网有限责任公司电力科学研究院 | Stress application replacing device for lead screw of insulator of angle steel cross arm |
| CN112249950A (en) * | 2020-11-05 | 2021-01-22 | 国网湖南省电力有限公司 | Hanging bracket and method for live replacement of any insulator of extra-high voltage strain insulator string |
| CN219067678U (en) * | 2022-09-26 | 2023-05-23 | 刘锐 | General maintenance tool for side end part of extra-high voltage tension insulator wire |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117353198B (en) | 2024-04-26 |
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