CN110265922B - Insulating cover that shields - Google Patents
Insulating cover that shields Download PDFInfo
- Publication number
- CN110265922B CN110265922B CN201910474459.8A CN201910474459A CN110265922B CN 110265922 B CN110265922 B CN 110265922B CN 201910474459 A CN201910474459 A CN 201910474459A CN 110265922 B CN110265922 B CN 110265922B
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- plate
- shielding cover
- shielding
- upper sliding
- side wall
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- 239000012212 insulator Substances 0.000 claims abstract description 39
- 238000003825 pressing Methods 0.000 claims abstract description 21
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Classifications
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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
- H02G1/04—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables for mounting or stretching
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- Electric Cable Installation (AREA)
Abstract
The invention discloses an insulating shielding cover which comprises an insulator shielding cover and a cross arm shielding cover, wherein the insulator shielding cover comprises a shielding cover body, connecting arms which are opposite in position are arranged on two sides of the shielding cover body, a clamping plate connected with the shielding cover body is arranged at the lower end of each connecting arm, a fixing pressing plate is arranged on the outer side wall of each connecting arm, a horizontal side wall is arranged on one side of the shielding cover body, a abdicating hole is formed in the lower part of the horizontal side wall, one end of the cross arm shielding cover is connected with the horizontal side wall, and the cross arm shielding cover is communicated with the insulator shielding cover through the abdicating hole. Not only ensures the tightness of the shielding of the joint, but also avoids the repeated shielding of the joint, saves time and shielding tools and improves the working efficiency.
Description
Technical Field
The invention relates to the technical field of power grid operation installation equipment, in particular to an insulating shielding cover.
Background
The existing live insulation shielding tool is composed of a wire shielding cover, an insulator shielding cover, a cross arm shielding cover, an insulation blanket and the like, when live operation is carried out, the corresponding insulation shielding tool is matched and used, a live body and a grounding body of the live operation are respectively subjected to insulation shielding, particularly when the live wire, the insulator and the cross arm are shielded at the same position, the joint of the wire shielding cover, the insulator shielding cover and the cross arm shielding cover insulation tool is overlapped by more than 15cm, two adjacent shielding covers at the joint can slide relatively, and in order to ensure the tight shielding of the joint, the joint is shielded for multiple times, so that time, labor and cost are wasted.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the insulating shielding cover, which not only ensures the shielding tightness of the joint, but also avoids shielding the joint for multiple times, saves time and shielding tools and improves the working efficiency.
In order to realize the purpose, the invention provides the following technical scheme:
the utility model provides an insulating cover that shields, shields cover, cross arm including the insulator and shields the cover, the insulator shields the cover including shielding the cover body, the both sides of shielding the cover body are equipped with the linking arm that the position is relative, the lower extreme of linking arm is equipped with and shields this body coupling splint of cover, be equipped with solid fixed pressing plate on the lateral wall of linking arm, one side of shielding the cover body is the horizontal lateral wall, the below of horizontal lateral wall is equipped with the hole of stepping down, the cross arm shields the one end of cover and is connected with the horizontal lateral wall, and the cross arm shields the cover and shields the cover intercommunication through the hole of stepping down and insulator.
Preferably, the fixed pressing plate is of an arc-shaped plate structure, the fixed pressing plate is provided with a fixed bolt, one end of the fixed pressing plate is provided with a sliding block, the side wall of the connecting arm is provided with a sliding groove, and the sliding block is matched with the sliding groove.
Preferably, the lower extreme opening part of linking arm is equipped with the first deflector that the slope set up, the lower extreme of splint is equipped with the second deflector that the slope set up.
Preferably, a handle is arranged at the upper end of the shielding cover body.
Preferably, the cross arm shielding cover comprises a first side plate, a second side plate, a first upper sliding plate and a second upper sliding plate, the first side plate and the second side plate are arranged in parallel, the upper end of the first side plate is perpendicularly connected with the first upper sliding plate, the upper end of the second side plate is perpendicularly connected with the second upper sliding plate, the first upper sliding plate is arranged at the upper end of the second upper sliding plate, guide rails are arranged at two ends of the second upper sliding plate, and two ends of the first upper sliding plate are matched with the guide rails.
Preferably, one end of the second upper sliding plate is provided with a first connecting plate, the end of the first connecting plate is provided with a first baffle, one end of the first upper sliding plate is provided with a second connecting plate, the end of the second connecting plate is provided with a second baffle, the horizontal side wall is transversely provided with a sliding hole, the first connecting plate and the second connecting plate are matched with the sliding hole, and the first baffle and the second baffle are arranged on the inner side of the horizontal side wall.
Preferably, one end of the first side plate and one end of the second side plate are both provided with a shielding plate, and the shielding plate is arranged at one end close to the shielding cover body.
Preferably, the first side plate and the second side plate are both provided with handles.
Preferably, one side of the first upper sliding plate is provided with a connecting rod, the upper end of the second upper sliding plate is provided with a sleeve, the connecting rod is matched with the sleeve, a spring is arranged in the sleeve, one end of the spring is connected with the connecting rod, and the other end of the spring is connected with the inner wall of the sleeve.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the insulator shielding cover, the fixing pressing plate is arranged on the outer side wall of the connecting arm of the insulator shielding cover, when the wire shielding cover is in lap joint with the connecting arm, the connecting arm and the wire shielding cover are fixed through the fixing clamping plate, so that the two shielding covers at the connecting part are prevented from sliding mutually, the shielding tightness of the connecting part is guaranteed, the connecting part is prevented from being shielded for multiple times, time and shielding tools are saved, and the working efficiency is improved; the horizontal side wall of the shielding cover body is connected with the cross arm shielding cover, so that the insulator shielding cover and the cross arm shielding cover can be mounted at one time when the shielding cover body is mounted, time and labor are saved, the connecting part of the insulator shielding cover and the cross arm shielding cover does not need to be shielded, the problem of combination between the insulator shielding cover and the cross arm shielding cover is not considered, and the use is more trouble-saving and worry-saving; when the insulating device is used, a better insulating effect can be achieved, the connection part is firmer, and the insulating device is safer and more reliable to use.
2. The fixing pressing plate is of an arc-shaped plate structure and can be matched with the shape of the wire insulating cover, so that the contact area is increased, and the fixing is firmer; the sliding block is arranged at one end of the fixed pressing plate, the sliding groove is formed in the side wall of the connecting arm, and the sliding block is matched with the sliding groove; fixing bolt on the fixed pressing plate can lock the wire insulating cover fixedly, prevents to take place the slippage between wire insulating cover and the linking arm, guarantees firm, reliable of connection, ensures that the junction can not the slippage, increases safe in utilization.
3. According to the invention, the obliquely arranged first guide plate is arranged at the lower end opening of the connecting arm, and the obliquely arranged second guide plate is arranged at the lower end of the clamping plate, so that when the insulator shielding cover is sleeved on the insulator, a wire can be conveniently put in, and the matching is quicker, more accurate and convenient to install.
4. According to the shielding cover, the lifting handle is arranged at the upper end of the shielding cover body, the shielding cover can be disassembled and assembled through the lifting handle, and can be taken from the upper end, so that an operator can be prevented from contacting with a wire, and the shielding cover is safer to use.
5. According to the invention, the cross arm shielding cover is designed into two plate bodies which are mutually connected in a sliding manner, the guide rails are arranged at the two ends of the second upper sliding plate, and the two ends of the first upper sliding plate are matched with the guide rails, so that the distance between the first side plate and the second side plate is adjusted, thus the cross arm shielding cover has a wider application range, can shield cross arms with different widths, and is more convenient to use.
6. According to the invention, the first connecting plate and the second connecting plate are matched with the slide hole, and the first baffle plate and the second baffle plate are arranged on the inner side of the horizontal side wall, so that the connection between the cross arm shielding cover and the insulator shielding cover is realized, the relative sliding between the cross arm shielding cover and the insulator shielding cover is met, the matching mode is simple, and the processing and manufacturing are convenient.
7. According to the invention, the shielding plates are arranged at one end of the first side plate and one end of the second side plate, the abdicating hole can be shielded through the shielding plates, so that an operator can be prevented from touching the internal wires, and the use is safer.
8. According to the invention, the handles are arranged on the first side plate and the second side plate, so that the width of the cross arm shielding cover can be conveniently adjusted through the handles, the cross arm shielding cover is convenient to grab, and the operation is convenient.
9. According to the invention, the connecting rod is matched with the sleeve, the spring connected with the connecting rod is arranged in the sleeve, and the first side plate and the second side plate can be automatically tightened up through the spring in use, so that the cross arm shielding cover is clamped on the cross arm, the firmness of connection between the cross arm shielding cover and the cross arm is ensured, and the fixing is reliable.
Drawings
FIG. 1 is a first perspective view of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a left side view of the present invention;
FIG. 5 is a schematic view of the structure of the insulator shielding cover;
FIG. 6 is a schematic structural view of a cross-arm shelter;
fig. 7 is a schematic structural view of the fixed platen.
In the figure: 1-fixing a pressing plate; 101-fixing bolts; 102-a slide block; 2-insulator shielding cover; 201-a handle; 202-a shield cover body; 203-a chute; 204-connecting arm; 205-a first guide plate; 206-clamping plate; 207-a second guide plate; 208-horizontal sidewalls; 209-slide hole; 210-a relief hole; 3-cross arm shielding cover; 301-a shutter; 302-a handle; 303-a first side panel; 304-a second side panel; 305-a first upper sliding plate; 306-a second upper slide plate; 307-guide rails; 308-a sleeve; 309-a spring; 310-a connecting rod; 311-a first baffle; 312 — a first connection board; 313-a second baffle; 314-second connecting plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-2, an insulating shielding cover includes an insulator shielding cover 2 and a cross arm shielding cover 3, the insulator shielding cover 2 includes a shielding cover body 202, connecting arms 204 with opposite positions are disposed on two sides of the shielding cover body 202, a clamping plate 206 connected to the shielding cover body 202 is disposed at a lower end of the connecting arm 204, a fixing pressing plate 1 is disposed on an outer side wall of the connecting arm 204, as shown in fig. 5, one side of the shielding cover body 202 is a horizontal side wall 208, a yielding hole 210 is disposed below the horizontal side wall 208, one end of the cross arm shielding cover 3 is connected to the horizontal side wall 208, and the cross arm shielding cover 3 is communicated with the insulator shielding cover 2 through the yielding hole 210.
As shown in fig. 7, the fixed pressing plate 1 is an arc-shaped plate structure, and can match with the shape of the wire insulating cover, so that the contact area is increased, and the fixation is firmer; the fixing bolt 101 is arranged on the fixing pressure plate 1, so that the wire insulating cover can be locked and fixed, the wire insulating cover and the connecting arm 204 are prevented from slipping, the connection is firm and reliable, the joint is prevented from slipping, and the use safety is increased; one end of the fixed pressing plate 1 is provided with a sliding block 102, as shown in fig. 2-3, the side wall of the connecting arm 204 is provided with a sliding groove 203, and the sliding block 102 is matched with the sliding groove 203, so that the structure is simple, the sliding is convenient, the position of the fixed pressing plate 1 is convenient to adjust, and the matching between the wire insulating cover and the connecting arm 204 is convenient.
As shown in fig. 2 and 4, a first guide plate 205 arranged obliquely is arranged at an opening at the lower end of the connecting arm 204, and a second guide plate 207 arranged obliquely is arranged at the lower end of the clamping plate 206, so that when the insulator shielding cover 2 is sleeved on an insulator, a wire can be conveniently placed in the insulator shielding cover, and the insulator shielding cover is quicker, more accurate and convenient to install in a matching manner.
As shown in fig. 1-2, a handle 201 is disposed at an upper end of the shielding cover body 202, and the shielding cover body can be disassembled and assembled through the handle 201 and taken from the upper end, so that an operator can be prevented from contacting with a wire, and the use is safer.
As shown in fig. 2-3 and 6, the cross arm shielding cover 3 includes a first side plate 303, a second side plate 304, a first upper sliding plate 305, and a second upper sliding plate 306, the first side plate 303 and the second side plate 304 are arranged in parallel, the upper end of the first side plate 303 is vertically connected to the first upper sliding plate 305, the upper end of the second side plate 304 is vertically connected to the second upper sliding plate 306, the first upper sliding plate 305 is arranged at the upper end of the second upper sliding plate 306, two ends of the second upper sliding plate 306 are both provided with guide rails 307, two ends of the first upper sliding plate 305 are engaged with the guide rails 307, the guide rails 307 are a limiting plate, and are located above the second upper sliding plate 306, one side of the guide rails is connected to the second upper sliding plate 306, and an end of the first upper sliding plate 305 slides between the limiting plate and the second upper sliding plate 306, so as to realize distance adjustment between the first side plate 303 and the second side plate 304, which makes the use range of the cross, can shield the cross arm of different width, it is more convenient to use.
As shown in fig. 6, a first connecting plate 312 is disposed at one end of the second upper sliding plate 306, a first baffle plate 311 is disposed at an end of the first connecting plate 312, a second connecting plate 314 is disposed at one end of the first upper sliding plate 305, a second baffle plate 313 is disposed at an end of the second connecting plate 314, as shown in fig. 5, a sliding hole 209 is transversely disposed on the horizontal side wall, the first connecting plate 312 and the second connecting plate 314 are both engaged with the sliding hole 209, and the first baffle plate 311 and the second baffle plate 313 are both disposed on an inner side of the horizontal side wall 208, so as to achieve connection between the cross arm shielding cover 3 and the insulator shielding cover 2, and simultaneously satisfy relative sliding between the cross arm shielding cover 3 and the insulator shielding cover 2, and have a simple engagement manner and are convenient to process and manufacture.
As shown in fig. 2 and 6, the shielding plate 301 is disposed at one end of the first side plate 303 and one end of the second side plate 304, the shielding plate 301 is disposed at one end close to the shielding cover body 202, the avoiding hole 210 can be shielded by the shielding plate 301, an operator can be prevented from touching the internal wires, and the use is safer.
As shown in fig. 2-3, the first side plate 303 and the second side plate 304 are both provided with a handle 302, and the width of the cross arm shielding cover 3 can be conveniently adjusted by the handle 302, so that the cross arm shielding cover is convenient to grab and convenient to operate.
As shown in fig. 3, a connecting rod 310 is disposed on one side of the first upper sliding plate 305, a sleeve 308 is disposed at an upper end of the second upper sliding plate 306, the connecting rod 310 is engaged with the sleeve 308, a spring 309 is disposed in the sleeve 308, one end of the spring 309 is connected to the connecting rod 310, and the other end of the spring 309 is connected to an inner wall of the sleeve 308, so that the first side plate 303 and the second side plate 304 can be automatically tightened by the spring 309 in use, the cross-arm shielding cover 3 is clamped on the cross arm, and the firmness of connection between the cross-arm shielding cover 3 and the cross arm is ensured, and the cross arm shielding cover is reliably fixed.
When in use, an operator holds the handle 201 with a hand, the shielding cover body 202 is sleeved on the insulator, then the handle 302 pulls the first side plate 303 and the second side plate 304 to adjust the width between the first side plate 303 and the second side plate 304, so that the cross arm shielding cover 3 is sleeved on the cross arm, while the wires are slid from between the clamping plates 206 into the connecting arm 204, the handle 302 is released, under the action of the spring 309, the first side plate 303 and the second side plate 304 clamp and fix the cross arm, install a wire shielding cover (prior art), install the wire shielding cover on the wire, one end of the wire shielding cover is sleeved on the connecting plate 204, then, the fixed pressing plate 1 is slid to enable the fixed pressing plate 1 to cover the end part of the wire shielding cover, the fixed bolt 101 is rotated to tightly press and fix the end part of the wire shielding cover and the connecting arm 204, and the shielding of the live wire, the insulator and the cross arm at the same position is realized. The outer side wall of the connecting arm 204 of the insulator shielding cover 2 is provided with the fixed pressing plate 1, when the lead shielding cover is lapped with the connecting arm 204, the connecting arm 204 and the lead shielding cover are fixed through the fixed clamping plate 1, so that the two shielding covers at the connecting part are prevented from sliding mutually, the tightness of shielding at the connecting part is ensured, the secondary multiple shielding at the connecting part is also avoided, the time and shielding tools are saved, and the working efficiency is improved; the horizontal side wall of the shield cover body 202 is connected with the cross arm shield cover 3, so that the insulator shield cover 2 and the cross arm shield cover 3 can be mounted at one time when the insulator shield cover is mounted, the time and labor force are saved, the connection part of the insulator shield cover 2 and the cross arm shield cover 3 does not need to be shielded, the combination problem between the insulator shield cover 2 and the cross arm shield cover 3 is not considered, and the use is more trouble-saving and worry-saving; when the insulating device is used, a better insulating effect can be achieved, the connection part is firmer, and the insulating device is safer and more reliable to use.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (6)
1. The utility model provides an insulating cover that shields, shields the cover including insulator shielding cover, cross arm, the insulator shields the cover including shielding the cover body, the both sides that shield the cover body are equipped with the linking arm that the position is relative, the lower extreme of linking arm be equipped with shield this body coupling's splint, its characterized in that: the outer side wall of the connecting arm is provided with a fixed pressing plate, one side of the shielding cover body is a horizontal side wall, a step-down hole is arranged below the horizontal side wall, one end of the cross arm shielding cover is connected with the horizontal side wall, the cross arm shielding cover is communicated with the insulator shielding cover through the step-down hole, the cross arm shielding cover comprises a first side plate, a second side plate, a first upper sliding plate and a second upper sliding plate, the first side plate and the second side plate are arranged in parallel, one end of the first side plate and one end of the second side plate are both provided with shielding plates, the shielding plates are arranged at the end close to the shielding cover body, the upper end of the first side plate is vertically connected with the first upper sliding plate, the upper end of the second side plate is vertically connected with the second upper sliding plate, the first upper sliding plate is arranged at the upper end of the second upper sliding plate, the two ends of the second upper sliding plate are both provided with guide, one end of the second upper sliding plate is provided with a first connecting plate, the end portion of the first connecting plate is provided with a first baffle, one end of the first upper sliding plate is provided with a second connecting plate, the end portion of the second connecting plate is provided with a second baffle, a sliding hole is transversely formed in the horizontal side wall, the first connecting plate and the second connecting plate are matched with the sliding hole, and the first baffle and the second baffle are arranged on the inner side of the horizontal side wall.
2. An insulating shield according to claim 1, wherein: the fixing pressing plate is of an arc-shaped plate structure, a fixing bolt is arranged on the fixing pressing plate, a sliding block is arranged at one end of the fixing pressing plate, a sliding groove is formed in the side wall of the connecting arm, and the sliding block is matched with the sliding groove.
3. An insulating shield according to claim 1, wherein: the lower extreme opening part of linking arm is equipped with the first deflector that the slope set up, the lower extreme of splint is equipped with the second deflector that the slope set up.
4. An insulating shield according to claim 1, wherein: the upper end of the shielding cover body is provided with a handle.
5. An insulating shield according to claim 1, wherein: handles are arranged on the first side plate and the second side plate.
6. An insulating shield according to claim 1, wherein: one side of the first upper sliding plate is provided with a connecting rod, the upper end of the second upper sliding plate is provided with a sleeve, the connecting rod is matched with the sleeve, a spring is arranged in the sleeve, one end of the spring is connected with the connecting rod, and the other end of the spring is connected with the inner wall of the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910474459.8A CN110265922B (en) | 2019-05-31 | 2019-05-31 | Insulating cover that shields |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910474459.8A CN110265922B (en) | 2019-05-31 | 2019-05-31 | Insulating cover that shields |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110265922A CN110265922A (en) | 2019-09-20 |
| CN110265922B true CN110265922B (en) | 2020-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910474459.8A Active CN110265922B (en) | 2019-05-31 | 2019-05-31 | Insulating cover that shields |
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| Country | Link |
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| CN (1) | CN110265922B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112467620B (en) * | 2020-12-16 | 2022-04-15 | 国网山东省电力公司昌乐县供电公司 | Shielding device and shielding method for live construction |
| CN115000873B (en) * | 2022-06-24 | 2023-03-24 | 国网湖北省电力有限公司黄冈供电公司 | 0.4kV overhead line uninterrupted operation pole top insulating shielding cover and construction method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201315445Y (en) * | 2008-11-11 | 2009-09-23 | 河南省电力公司平顶山供电公司 | Slinger fixing device for hanging iron tower angle steel pulley |
| CN101958518A (en) * | 2010-08-30 | 2011-01-26 | 河南省电力公司周口供电公司 | Irregularly-shaped cross arm shielding cover |
| CN202308915U (en) * | 2011-11-10 | 2012-07-04 | 广东电网公司东莞供电局 | Telescopic lead shielding cover used for live-wire work on power distribution network |
| CN107039918A (en) * | 2017-05-02 | 2017-08-11 | 国网江苏省电力公司常州供电公司 | A kind of insulator mask |
| CN208797461U (en) * | 2018-08-03 | 2019-04-26 | 云南电网有限责任公司普洱供电局 | A kind of insulation shunt line support device suitable for bypass operation |
-
2019
- 2019-05-31 CN CN201910474459.8A patent/CN110265922B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201315445Y (en) * | 2008-11-11 | 2009-09-23 | 河南省电力公司平顶山供电公司 | Slinger fixing device for hanging iron tower angle steel pulley |
| CN101958518A (en) * | 2010-08-30 | 2011-01-26 | 河南省电力公司周口供电公司 | Irregularly-shaped cross arm shielding cover |
| CN202308915U (en) * | 2011-11-10 | 2012-07-04 | 广东电网公司东莞供电局 | Telescopic lead shielding cover used for live-wire work on power distribution network |
| CN107039918A (en) * | 2017-05-02 | 2017-08-11 | 国网江苏省电力公司常州供电公司 | A kind of insulator mask |
| CN208797461U (en) * | 2018-08-03 | 2019-04-26 | 云南电网有限责任公司普洱供电局 | A kind of insulation shunt line support device suitable for bypass operation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110265922A (en) | 2019-09-20 |
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