CN112448312A - Clamp for replacing insulator at quadruple end of extra-high voltage line and using method thereof - Google Patents
Clamp for replacing insulator at quadruple end of extra-high voltage line and using method thereof Download PDFInfo
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- CN112448312A CN112448312A CN202011255243.1A CN202011255243A CN112448312A CN 112448312 A CN112448312 A CN 112448312A CN 202011255243 A CN202011255243 A CN 202011255243A CN 112448312 A CN112448312 A CN 112448312A
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- 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
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Abstract
The invention relates to the technical field of electric appliances, in particular to a four-connection end insulator replacement fixture for an extra-high voltage line and a using method thereof, and the four-connection end insulator replacement fixture comprises two end U-shaped clamping plates, two length adjusting connecting plates and a contraction assembly, wherein the two end U-shaped clamping plates are parallel, the two length adjusting connecting plates are connected between the two end U-shaped clamping plates, the two length adjusting connecting plates are respectively connected to two side plates of the end U-shaped clamping plates, connecting holes at the upper ends of the two length adjusting connecting plates are respectively connected with two screw rods of the contraction assembly, a circuit triangular connecting plate is connected between the two end U-shaped clamping plates, and a right-angle hanging plate at the lower end of a first insulator at a cross arm end to be replaced is connected in a bottom plate notch of the end U; the invention has the advantages of simple structure, easy processing, convenient and quick assembly, light weight and convenient carrying, and can simplify the operation flow, save tools and instruments, reduce the labor intensity and improve the maintenance operation efficiency.
Description
Technical Field
The invention relates to the technical field of electric power equipment, in particular to a replacement clamp for an insulator at the quadruple end of an extra-high voltage line and a use method thereof, and is particularly suitable for replacing the insulator at the quadruple end of the extra-high voltage line of 750kV and +/-800 kV.
Background
The ultra-high voltage transmission line end part clamp is a metal clamp used when a glass or porcelain insulator is replaced in transmission line maintenance, one end of the end part clamp is clamped on the triangular connecting plate when the clamp is used, the other end of the end part clamp is clamped on an insulator steel cap in front of an end part insulator to be replaced, and a tightening screw rod transfers a load on the insulator to be replaced to the clamp, so that the insulator is replaced. In the replacement operation of the insulator, because the types and the types of the insulator are more, the degrees of the tower type and the rotation angle are different, the conventional fixture is not matched with the size of the insulator, and different voltage grades and different tension sections need specific fixtures. Therefore, the four-connection end insulator replacing clamp which simultaneously accords with the lengths of the 750kV and +/-800 kV four-connection end insulators and the thickness of the triangular connection plate needs to be designed.
Disclosure of Invention
The invention aims to provide a replacement clamp for an insulator at the quadruple end of an extra-high voltage line and a use method thereof, which are particularly suitable for replacing insulators at the quadruple end of 750kV and +/-800 kV extra-high voltage lines, simplify the operation flow, save tools, reduce the labor intensity and improve the maintenance operation efficiency.
In order to solve the technical problem, the invention relates to a four-connection end insulator replacement clamp for an extra-high voltage circuit, which comprises two cross arm end first insulators, wherein the bottoms of the two cross arm end first insulators are connected with two right-angle hanging plates, a circuit triangular connecting plate is connected between the two right-angle hanging plates, and comprises an end U-shaped clamping plate, two length adjusting connecting plates and a contraction assembly, the end U-shaped clamping plate is U-shaped and consists of two side plates and a bottom plate, a notch is arranged on the bottom plate of the end U-shaped clamping plate, the upper parts of the two side plates of the end U-shaped clamping plate are provided with connecting holes, the two end U-shaped clamping plates are arranged, the two end U-shaped clamping plates are parallel, the upper and lower ends of the length adjusting connecting plate are provided with connecting holes, the two length adjusting connecting plates are connected between the two end U-shaped clamping plates, the two length adjusting connecting plates, the connecting holes of the two side plates of one end U-shaped clamping plate and the connecting holes of the two side plates of the other end U-shaped clamping plate are respectively connected with a connecting bolt, the two length adjusting connecting plates are respectively connected onto the two connecting bolts, the connecting holes in the upper ends of the two length adjusting connecting plates are respectively connected with the two lead screws of the contraction assembly, the circuit triangular connecting plate is connected between the two end U-shaped clamping plates, and the right-angle hanging plate at the lower end of the first insulator at the cross arm end to be replaced is connected into the bottom plate notch of the end U-shaped clamping.
Furthermore, the connecting bolts are connected with positioning springs, each connecting bolt is provided with two positioning springs, the two positioning springs are respectively connected to the left side and the right side of the length adjusting yoke plate, and the two length adjusting yoke plates are connected to the middle of the two end U-shaped plates.
Furthermore, the two positioning springs on each connecting bolt are the same in length, and the two length adjusting connecting plates are connected to the middle of the two end U-shaped plates.
Furthermore, the end U-shaped clamping plate is made of titanium alloy.
Furthermore, the length adjusting yoke plate is made of titanium alloy.
Furthermore, the positioning spring is made of piano steel.
The structure size of the invention is the same as that of the lead end card, and the length adjusting yoke plates are a plurality of groups of yoke plates with different lengths and can be adjusted, replaced and used according to the actual length.
A use method of a replacement clamp for an insulator at the quadruple end of an extra-high voltage line comprises the following steps;
a. the circuit comprises two first insulators at cross arm ends, the bottoms of the first insulators at the cross arm ends are connected with two right-angle hanging plates, a circuit triangular connecting plate is connected between the two right-angle hanging plates, a connecting bolt, a length adjusting connecting plate and a positioning spring are connected with connecting holes at one sides of two end U-shaped clamping plates, the circuit triangular connecting plate below the first insulator at the cross arm end to be replaced is connected between the two end U-shaped clamping plates from the other sides of the two end U-shaped clamping plates, the connecting holes at the other sides of the two end U-shaped clamping plates are connected by using the connecting bolt, the length adjusting connecting plate and the positioning spring, and finally the connecting bolts at two sides of the end U-shaped clamping plates are tightened by using nuts, so that the two tightened end U-shaped clamping plates at the two ends are; the right-angle hanging plate at the lower end of the first insulator at the cross arm end to be replaced is connected in the notch of the bottom plate of the U-shaped clamping plate at the end part
b. Connecting an insulator bottleneck clamp on an insulator above a first insulator at the cross arm end to be replaced, connecting two contraction assemblies with two ends of the insulator bottleneck clamp, and connecting lead screws of the two contraction assemblies with two length adjusting yoke plates;
c. simultaneously, screw rods of the contraction assemblies are tightened, the screw rods of the two contraction assemblies are balanced, and the bottom plates of the U-shaped clamping plates at the two end parts are always perpendicular to the axis of the insulator string;
d. taking out the damaged insulator string and replacing the damaged insulator string with a new insulator string, and loosening a screw rod of the contraction assembly to clamp and unload the insulator bottleneck after the new insulator string is checked to be well connected;
e. the shrink assembly is disassembled from the length adjustment yoke plate, the connecting bolts in the connecting holes in one sides of the two end U-shaped clamping plates are loosened but cannot be completely disassembled, then the connecting bolts in the connecting holes in the other sides of the two end U-shaped clamping plates are completely disassembled, the connecting bolts which are not completely disassembled are completely disassembled, the two end U-shaped clamping plates are simultaneously taken down from the circuit triangular yoke plate, and the operation is completed.
The invention has the beneficial effects that: comprises a U-shaped clamping plate at the end part, the length adjusting yoke plates and the contraction components, the number of the end U-shaped clamping plates is two, the two end U-shaped clamping plates are parallel, the number of the length adjusting yoke plates is two, the two length adjusting yoke plates are connected between the two end U-shaped clamping plates, the two length adjusting yoke plates are respectively connected to two side plates of the end U-shaped clamping plates, connecting holes of two side plates of one end U-shaped clamping plate and connecting holes of two side plates of the other end U-shaped clamping plate are respectively connected with connecting bolts, the two length adjusting yoke plates are respectively connected to the two connecting bolts, the contraction components are provided with two length adjusting yoke plates, the connecting holes at the upper ends of the two length adjusting yoke plates are respectively connected with lead screws of the two contraction components, a circuit triangular yoke plate is connected between the two end U-shaped clamping plates, and a right-angle hanging plate at the lower; the invention has the advantages of simple structure, easy processing, convenient and quick assembly, light weight and convenient carrying, and can simplify the operation flow, save tools and instruments, reduce the labor intensity and improve the maintenance operation efficiency.
Drawings
FIG. 1 is a schematic diagram of the circuit assembly of the present invention;
FIG. 2 is a schematic front view of the present invention;
FIG. 3 is a left side view of the present invention;
FIG. 4 is a schematic top view of the present invention.
In the figure: 1. an end U-shaped clamping plate; 2. a connecting bolt; 3. a length adjustment yoke plate; 4. a retraction assembly; 5. a positioning spring; 6. a right-angle hanging plate; 7. a circuit triangular yoke plate; 8. the first insulator of cross arm end.
Detailed Description
As shown in figures 1-4, the invention relates to a four-connection end insulator replacement clamp for an extra-high voltage circuit, the circuit comprises two cross arm end first insulator sheets 8, the bottoms of the two cross arm end first insulator sheets 8 are connected with two right-angle hanging plates 6, a circuit triangular connecting plate 7 is connected between the two right-angle hanging plates 6, the clamp comprises an end U-shaped clamping plate 1, a length adjustment connecting plate 3 and a contraction component 4, the end U-shaped clamping plate 1 is U-shaped formed by two side plates and a bottom plate, the bottom plate of the end U-shaped clamping plate 1 is provided with a notch, the upper parts of the two side plates of the end U-shaped clamping plate 1 are provided with connecting holes, the end U-shaped clamping plate 1 is provided with two end U-shaped clamping plates 1 which are parallel, the upper end and lower ends of the length adjustment connecting plate 3 are provided with connecting holes, the length adjustment connecting plate 3 is provided with two length adjustment, two length adjustment yoke plates 3 are connected respectively on two curb plates of tip U type cardboard 1, all be connected with connecting bolt 2 on the connecting hole of two curb plates of 1 and another tip U type cardboard of a tip U type cardboard and the connecting hole of two curb plates of 1, two length adjustment yoke plates 3 are connected respectively on two connecting bolt 2, the connecting hole of two length adjustment yoke plates 3 upper ends is connected with two lead screws of shrink subassembly 4 respectively, circuit triangle yoke plate 7 is connected between two tip U type cardboard 1, the right angle link plate 6 of the first piece insulator 8 lower extreme of cross arm end of treating the change is connected in the bottom plate notch of tip U type cardboard 1.
Furthermore, connecting bolt 2 on be connected with positioning spring 5, be equipped with two positioning spring 5 on every connecting bolt 2, two positioning spring 5 are connected respectively in the length adjustment yoke plate 3 left and right sides, two length adjustment yoke plates 3 are connected in two tip U template 1 positive middles.
Further, two positioning springs 5 on each connecting bolt 2 are the same in length, and two length adjusting connecting plates 3 are connected to the middle of the two end U-shaped plates 1.
Furthermore, the end U-shaped clamping plate 1 is made of titanium alloy.
Furthermore, the length adjusting yoke plate 3 is made of titanium alloy.
Furthermore, the positioning spring 5 is made of piano steel.
A use method of a replacement clamp for an insulator at the quadruple end of an extra-high voltage line comprises the following steps;
a. the circuit comprises two first insulators 8 at cross arm ends, the bottoms of the first insulators 8 at the cross arm ends are connected with two right-angle hanging plates 6, a circuit triangular connecting plate 7 is connected between the two right-angle hanging plates 6, a connecting bolt 2, a length adjusting connecting plate 3 and a positioning spring 5 are connected with connecting holes at one side of two end U-shaped clamping plates 1, the circuit triangular connecting plate 7 below the first insulator 8 at the cross arm end to be replaced is connected between the two end U-shaped clamping plates 1 from the other side of the two end U-shaped clamping plates 1, the connecting holes at the other sides of the two end U-shaped clamping plates 1 are connected by using the connecting bolt 2, the length adjusting connecting plate 3 and the positioning spring 5, and finally the connecting bolts 2 at the two sides of the end U-shaped clamping plates 1 are tightened by using nuts, so that the two end U-shaped clamping plates 1 after being tightened are required to be; the right-angle hanging plate 6 at the lower end of the first insulator 8 at the cross arm end to be replaced is connected in the bottom plate notch of the U-shaped clamping plate 1 at the end part
b. Connecting an insulator bottleneck clamp on an insulator above a first insulator 8 at the cross arm end to be replaced, connecting two contraction assemblies 4 with two ends of the insulator bottleneck clamp, and connecting lead screws of the two contraction assemblies 4 with two length adjusting yoke plates 3;
c. simultaneously, screw rods of the contraction assemblies 4 are tightened, the screw rods of the two contraction assemblies 4 are balanced, and the bottom plates of the U-shaped clamping plates 1 at the two end parts are always vertical to the axis of the insulator string;
d. taking out the damaged insulator string and replacing the damaged insulator string with a new insulator string, and loosening the screw rod of the contraction assembly 4 to clamp and unload the insulator bottleneck after the new insulator string is checked to be well connected;
e. pull down shrink component 4 from length adjustment yoke plate 3, loosen connecting bolt 2 in the connecting hole of two tip U type cardboard 1 one sides but can not demolish completely, later demolish connecting bolt 2 in the connecting hole of two tip U type cardboard 1 opposite sides completely, demolish connecting bolt 2 that will not demolish completely again completely, take off two tip U type cardboard 1 from circuit triangle yoke plate 7 simultaneously, the operation is accomplished.
The structure size of the invention is the same as that of the end card of the lead, wherein the adjusting yoke plate is a plurality of groups of yoke plates with different lengths, and can be adjusted, replaced and used according to the actual length. The end U-shaped clamping plate and the length adjusting connecting plate are made of titanium alloy materials.
Aiming at the defects in the prior art, the invention provides the quadruple end insulator replacing clamp which simultaneously accords with the lengths of the 750kV and +/-800 kV quadruple end insulators and the thickness of the triangular yoke plate, and can simplify the operation flow, save tools, reduce the labor intensity and improve the overhauling operation efficiency.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The utility model provides a special high voltage transmission lines quadruple tip insulator changes fixture, is including two first piece insulators of cross arm end (8) on the circuit, and two first piece insulators of cross arm end (8) bottom all are connected with two right angle link plates (6), are connected with circuit triangle yoke plate (7) between two right angle link plates (6), its characterized in that: comprises an end U-shaped clamping plate (1), length adjusting connecting plates (3) and a contraction component (4), wherein the end U-shaped clamping plate (1) is a U-shaped plate consisting of two side plates and a bottom plate, a notch is arranged on the bottom plate of the end U-shaped clamping plate (1), connecting holes are respectively arranged on the upper parts of the two side plates of the end U-shaped clamping plate (1), the two end U-shaped clamping plates (1) are arranged, the two end U-shaped clamping plates (1) are parallel, the upper ends and the lower ends of the length adjusting connecting plates (3) are respectively provided with a connecting hole, the two length adjusting connecting plates (3) are respectively connected between the two end U-shaped clamping plates (1), the connecting holes of the two side plates of one end U-shaped clamping plate (1) and the connecting holes of the two side plates of the other end U-shaped clamping plate (1) are respectively connected with a connecting bolt (2), two length adjustment yoke plates (3) are connected respectively on two connecting bolt (2), and the connecting hole of two length adjustment yoke plates (3) upper end is connected with two lead screws of shrink subassembly (4) respectively, and circuit triangle yoke plate (7) are connected between two tip U type cardboard (1), and right angle link plate (6) of the first piece insulator of cross arm end (8) lower extreme that treat to change are connected in the bottom plate notch of tip U type cardboard (1).
2. The replacement clamp for the insulator at the quadruple end of the extra-high voltage line according to claim 1, which is characterized in that: connecting bolt (2) on be connected with positioning spring (5), be equipped with two positioning spring (5) on every connecting bolt (2), two positioning spring (5) are connected respectively in the length adjustment yoke plate (3) left and right sides, two length adjustment yoke plates (3) are connected in two tip U templates (1) positive middles.
3. The replacement clamp for the insulator at the quadruple end of the extra-high voltage line according to claim 2, which is characterized in that: two positioning springs (5) on each connecting bolt (2) are the same in length, and two length adjusting connecting plates (3) are connected to the middle of the two end U-shaped plates (1).
4. The replacement clamp for the insulator at the quadruple end of the extra-high voltage line according to any one of claims 1 to 3, which is characterized in that: the end U-shaped clamping plate (1) is made of titanium alloy.
5. The replacement clamp for the insulator at the quadruple end of the extra-high voltage line according to any one of claims 1 to 3, which is characterized in that: the length adjusting yoke plate (3) is made of titanium alloy.
6. The replacement clamp for the insulator at the quadruple end of the extra-high voltage line according to claim 2, which is characterized in that: the positioning spring (5) is made of piano steel.
7. The use method of the insulator replacement clamp at the four-connection end part of the extra-high voltage line is characterized by comprising the following steps of: comprises the following steps;
a. the circuit comprises two first insulators (8) at cross arm ends, the bottoms of the first insulators (8) at the cross arm ends are connected with two right-angle hanging plates (6), a circuit triangular connecting plate (7) is connected between the two right-angle hanging plates (6), a connecting bolt (2), a length adjusting connecting plate (3) and a positioning spring (5) are connected with a connecting hole at one side of each of two U-shaped clamping plates (1) at the end parts, the circuit triangular connecting plate (7) below the first insulator (8) at the cross arm end to be replaced is connected between the two U-shaped clamping plates (1) at the end parts from the other side of the U-shaped clamping plates (1) at the end parts, the connecting holes at the other side of the U-shaped clamping plates (1) at the end parts are connected by using the connecting bolt (2), the length adjusting connecting plate (3) and the positioning spring (5), and finally nuts are used for tightening the connecting bolts (2), the two U-shaped clamping plates (1) at the two ends are required to be parallel and clamp the circuit triangular connecting plate (7) after being tightened; the right-angle hanging plate (6) at the lower end of the first insulator (8) at the cross arm end to be replaced is connected into the bottom plate notch of the U-shaped clamping plate (1) at the end part;
b. connecting an insulator bottleneck clamp on an insulator above a first insulator (8) at the cross arm end to be replaced, connecting two contraction assemblies (4) with two ends of the insulator bottleneck clamp, and connecting lead screws of the two contraction assemblies (4) with two length adjusting yoke plates (3);
c. simultaneously, screw rods of the contraction assemblies (4) are tightened, the screw rods of the two contraction assemblies (4) are balanced, and the bottom plates of the U-shaped clamping plates (1) at the two end parts are always vertical to the axis of the insulator string;
d. taking out the damaged insulator string and replacing the damaged insulator string with a new insulator string, and loosening a screw rod of the contraction assembly (4) to clamp and unload the insulator bottleneck after the new insulator string is checked to be well connected;
e. pull down shrink component (4) from length adjustment yoke plate (3), loosen connecting bolt (2) in the connecting hole of two tip U type cardboard (1) one sides but can not demolish completely, later with connecting bolt (2) in the connecting hole of two tip U type cardboard (1) opposite sides demolish completely, again with connecting bolt (2) demolish completely not demolishd completely, take off two tip U type cardboard (1) from circuit triangle yoke plate (7) simultaneously, the operation is accomplished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011255243.1A CN112448312A (en) | 2020-11-11 | 2020-11-11 | Clamp for replacing insulator at quadruple end of extra-high voltage line and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011255243.1A CN112448312A (en) | 2020-11-11 | 2020-11-11 | Clamp for replacing insulator at quadruple end of extra-high voltage line and using method thereof |
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| Publication Number | Publication Date |
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| CN112448312A true CN112448312A (en) | 2021-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011255243.1A Pending CN112448312A (en) | 2020-11-11 | 2020-11-11 | Clamp for replacing insulator at quadruple end of extra-high voltage line and using method thereof |
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| CN (1) | CN112448312A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115693491A (en) * | 2022-11-07 | 2023-02-03 | 广西电网有限责任公司来宾供电局 | Device for replacing insulator strings in various forms |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101174761A (en) * | 2007-10-30 | 2008-05-07 | 重庆市电力公司超高压局 | High-voltage power line tension insulator string forward spin live-wire altering method and two yoke plate device |
| CN103715633A (en) * | 2014-01-20 | 2014-04-09 | 国家电网公司 | Clamping device and method for replacing single-hole connecting plate strain insulator string |
| KR200477170Y1 (en) * | 2013-11-14 | 2015-05-13 | 한전케이피에스 주식회사 | Insulator changer |
| CN205070303U (en) * | 2015-10-30 | 2016-03-02 | 国网青海省电力公司检修公司 | 750kV circuit block of four strain insulator string tip fixture |
| CN106207886A (en) * | 2016-07-29 | 2016-12-07 | 国网山东省电力公司蓬莱市供电公司 | A kind of electric power cable connects equipment |
| CN108899805A (en) * | 2018-09-26 | 2018-11-27 | 广东电网有限责任公司 | A kind of Multifunctional clamp of transmission line of electricity replacement deep bid diameter glass insulator |
| CN208607977U (en) * | 2018-06-12 | 2019-03-15 | 宁夏大唐国际青铜峡风电有限责任公司 | A kind of waste and old cable peeling device |
| CN109659854A (en) * | 2018-11-09 | 2019-04-19 | 国网浙江杭州市余杭区供电有限公司 | A kind of fixed device of drainage thread for distribution line live working |
| CN209675882U (en) * | 2019-03-22 | 2019-11-22 | 杭州引驰信息科技有限公司 | A kind of cable relief for communication equipment |
| CN209906064U (en) * | 2019-05-25 | 2020-01-07 | 江苏耐尔特电力设备科技有限公司 | Multifunctional pay-off device |
-
2020
- 2020-11-11 CN CN202011255243.1A patent/CN112448312A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101174761A (en) * | 2007-10-30 | 2008-05-07 | 重庆市电力公司超高压局 | High-voltage power line tension insulator string forward spin live-wire altering method and two yoke plate device |
| KR200477170Y1 (en) * | 2013-11-14 | 2015-05-13 | 한전케이피에스 주식회사 | Insulator changer |
| CN103715633A (en) * | 2014-01-20 | 2014-04-09 | 国家电网公司 | Clamping device and method for replacing single-hole connecting plate strain insulator string |
| CN205070303U (en) * | 2015-10-30 | 2016-03-02 | 国网青海省电力公司检修公司 | 750kV circuit block of four strain insulator string tip fixture |
| CN106207886A (en) * | 2016-07-29 | 2016-12-07 | 国网山东省电力公司蓬莱市供电公司 | A kind of electric power cable connects equipment |
| CN208607977U (en) * | 2018-06-12 | 2019-03-15 | 宁夏大唐国际青铜峡风电有限责任公司 | A kind of waste and old cable peeling device |
| CN108899805A (en) * | 2018-09-26 | 2018-11-27 | 广东电网有限责任公司 | A kind of Multifunctional clamp of transmission line of electricity replacement deep bid diameter glass insulator |
| CN109659854A (en) * | 2018-11-09 | 2019-04-19 | 国网浙江杭州市余杭区供电有限公司 | A kind of fixed device of drainage thread for distribution line live working |
| CN209675882U (en) * | 2019-03-22 | 2019-11-22 | 杭州引驰信息科技有限公司 | A kind of cable relief for communication equipment |
| CN209906064U (en) * | 2019-05-25 | 2020-01-07 | 江苏耐尔特电力设备科技有限公司 | Multifunctional pay-off device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115693491A (en) * | 2022-11-07 | 2023-02-03 | 广西电网有限责任公司来宾供电局 | Device for replacing insulator strings in various forms |
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Application publication date: 20210305 |
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