CN106532452B - A kind of insulating boot for power system - Google Patents
A kind of insulating boot for power system Download PDFInfo
- Publication number
- CN106532452B CN106532452B CN201611027825.8A CN201611027825A CN106532452B CN 106532452 B CN106532452 B CN 106532452B CN 201611027825 A CN201611027825 A CN 201611027825A CN 106532452 B CN106532452 B CN 106532452B
- Authority
- CN
- China
- Prior art keywords
- insulating boot
- lower house
- upper shell
- wall
- plugged
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000000007 visual effect Effects 0.000 claims abstract description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 16
- 229910052802 copper Inorganic materials 0.000 claims description 16
- 239000010949 copper Substances 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 9
- 244000000626 Daucus carota Species 0.000 abstract description 3
- 235000005770 birds nest Nutrition 0.000 abstract description 3
- 235000005765 wild carrot Nutrition 0.000 abstract description 3
- 239000004698 Polyethylene Substances 0.000 description 9
- -1 polyethylene Polymers 0.000 description 9
- 229920000573 polyethylene Polymers 0.000 description 9
- 238000000576 coating method Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920005439 Perspex® Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The invention discloses a kind of insulating boot for power system of electric fittings technical field,Including insulating boot upper shell,The bottom of the insulating boot upper shell is provided with insulating boot lower house,The left and right sidewall of the insulating boot upper shell and insulating boot lower house is provided with mounting ear,The top left and right ends of the insulating boot upper shell are respectively arranged with buzzer and control device,The outer wall of the insulating boot upper shell offers visual window,The inner chamber left wall of the insulating boot lower house is plugged with inlet wire sleeve,Insulating boot upper shell of the present invention is connected with insulating boot lower house by way of grafting,Make insulating boot installation easy to disassemble,Buzzer sounding is controlled by control device,Disperse the small bird for building Bird's Nest,Avoid that accident occurs,The working condition for observing electrical equipment can be facilitated by setting for visual window,Pass through inlet wire sleeve,The setting of outlet sleeve and earthing sleeve makes the cabling of insulating boot orderly.
Description
Technical field
The present invention relates to electric fittings technical field, specially a kind of insulating boot for power system.
Background technology
At present, the enclosed construction of insulated barrel-type is used in electric fittings mostly, prevents from getting an electric shock, to ensure the life wealth of people
Production safety, it is desirable to which alternate have enough effective insulation, good radiating condition, but the insulating cylinder of enclosed construction and does not apply to
In some specific occasions, restricted by space environment etc., such as a kind of 201220732660.5 insulating boot of Chinese Patent Application No.,
Including cover body, described cover body includes two side walls, a bottom wall and edge sealing, and two side walls are fixedly connected in U with a bottom wall
Type structure, edge sealing are fixedly connected with side wall, bottom wall respectively, and several the first inserts are fixed with the inside of the side wall, described
Bottom wall outer be fixed with several the second inserts, the thermal diffusivity of this design insulating boot is not strong, and installation is inconvenient, is not provided with
Visual window conveniently carries out the inspection of electrical equipment, and the weatherability of insulating boot is also inadequate.
Based on this, how a kind of good heat dissipation, the convenient insulating boot of installation are provided, is that those skilled in the art are urgently to be resolved hurrily
Problem.
The content of the invention
It is an object of the invention to provide a kind of insulating boot for power system, to solve to propose in above-mentioned background technology
Insulating boot thermal diffusivity it is not strong, installation is inconvenient, is not provided with visual window, it has not been convenient to carries out the inspection of electrical equipment, insulate
The problem of weatherability of cover is also inadequate.
To achieve the above object, the present invention provides following technical scheme：A kind of insulating boot for power system, including it is exhausted
Edge cover upper shell, the bottom of the insulating boot upper shell are provided with insulating boot lower house, the insulating boot upper shell and insulating boot
The left and right sidewall of lower house is provided with mounting ear, and the top left and right ends of the insulating boot upper shell are respectively arranged with buzzer
And control device, the outer wall of the insulating boot upper shell offer visual window, the inner chamber left wall grafting of the insulating boot lower house
There is inlet wire sleeve, the bottom of the insulating boot lower house is plugged with earthing sleeve, and the right wall bottom of the insulating boot lower house is inserted
Outlet sleeve is connected to, the inner chamber left and right sidewall of the insulating boot lower house is provided with supporting table, the insulating boot lower house
Inner chamber is provided with disconnecting switch, and spark chamber is provided with the top of the disconnecting switch, and the left and right sidewall of the disconnecting switch is all provided with
Engaging lug is equipped with, and engaging lug is arranged on the top of supporting table, and connecting bolt, the connection are plugged with the top of the engaging lug
Ear is connected with supporting table by connecting bolt, and the bottom of the disconnecting switch is provided with grounding connection line, the insulating boot lower casing
The inner chamber left wall of body is provided with copper busbar, and the copper busbar is arranged on the bottom of supporting table, a left side for the grounding connection line
Hold and be connected at the top of the right wall with copper busbar, the right wall bottom of the copper busbar is provided with earth lead, the earth lead
The inner chamber of earthing sleeve is plugged on, the control device is electrically connected with buzzer.
Preferably, polyethylene layer, the top of the polyethylene layer are provided with the top of the insulating boot lower house
Portion is provided with acrylic coating weathering layer.
Preferably, the left end of the mounting ear offers rotation slot, and the inner chamber of the rotation slot is plugged with support bar, described
The top of rotation slot is longitudinally plugged with pivot pin, and the mounting ear is connected with support bar by pivot pin, and the left end of the support bar is set
Fixed plate is equipped with, the right wall corner of the fixed plate is provided with pin.
Preferably, the bottom of the insulating boot upper shell is provided with boss, is offered at the top of the insulating boot lower house
Groove, the boss are plugged on the inner chamber of groove, and the intracavity bottom of the groove is provided with sealing rubber pad, under the insulating boot
The left wall transverse splicing of housing has fastening bolt, and the insulating boot upper shell and insulating boot lower house are consolidated by fastening bolt
It is fixed.
Preferably, the outer wall of the visual window is provided with transparent organic glass layer, the insulating boot upper shell and insulating boot
The outer wall of lower house offers heat emission hole, and the bottom of the insulating boot lower house offers apopore.
Compared with prior art, the beneficial effects of the invention are as follows：Insulating boot upper shell and insulating boot lower house of the present invention lead to
The mode for crossing grafting connects, and makes insulating boot installation easy to disassemble, controls buzzer sounding by control device, disperses and build Bird's Nest
Small bird, avoid that accident occurs, by visual window set can conveniently observe electrical equipment working condition, pass through inlet wire set
Cylinder, the setting of outlet sleeve and earthing sleeve make the cabling of insulating boot orderly, facilitate disconnecting switch etc. by the setting of supporting table
The installation of electric components, do not disturbed when protecting electric components to work by the setting of spark chamber by electric arc, pass through wiring
The setting of copper bar and grounding connection line strengthens the security of insulating boot, is easily installed insulating boot by the setting of mounting ear solid
It is fixed, heat emission hole is offered by the outer wall of insulating boot upper shell and insulating boot lower house, makes the thermal diffusivity of insulating boot strengthen, is passed through
The bottom of insulating boot lower house offers apopore, the rainwater in insulating boot is excluded in time, passes through insulating boot lower house
Top be provided with polyethylene layer, the insulating properties of insulating boot is enhanced, by being provided with third at the top of polyethylene layer
Olefin(e) acid coating weathering layer, enhances the weatherability of insulating barrier, extends service life.
Brief description of the drawings
Fig. 1 is the structural representation of insulating boot provided by the present invention；
Fig. 2 is insulating boot lower house structural representation provided by the present invention；
Fig. 3 is mounting ear structure schematic diagram provided by the present invention；
Fig. 4 is insulating boot upper shell structural representation provided by the present invention.
In figure：1 insulating boot upper shell, 111 boss, 2 insulating boot lower houses, 21 polyethylene layers, 22 acrylic coatings
Weathering layer, 211 grooves, 212 sealing rubber pads, 213 fastening bolts, 3 mounting ears, 31 rotation slots, 32 support bars, 33 pivot pins, 34
Fixed plate, 35 pins, 4 buzzers, 5 control devices, 6 inlet wire sleeves, 7 outlet sleeves, 8 earthing sleeves, 9 supporting tables, 10 isolation
It is switch, 11 engaging lugs, 12 connecting bolts, 13 spark chambers, 14 grounding connection lines, 15 copper busbars, 16 earth leads, 17 visual
Window.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Fig. 1-4 are referred to, the present invention provides a kind of technical scheme：A kind of insulating boot for power system, including insulation
Cover upper shell 1, the bottom of the insulating boot upper shell 1 are provided with insulating boot lower house 2, the insulating boot upper shell 1 and insulation
The left and right sidewall of cover lower house 2 is provided with mounting ear 3, and the top left and right ends of the insulating boot upper shell 1 are respectively arranged with
Buzzer 4 and control device 5, the outer wall of the insulating boot upper shell 1 offer visual window 17, the insulating boot lower house 2
Inner chamber left wall is plugged with inlet wire sleeve 6, and the bottom of the insulating boot lower house 2 is plugged with earthing sleeve 8, the insulating boot lower casing
The right wall bottom of body 2 is plugged with outlet sleeve 7, and the inner chamber left and right sidewall of the insulating boot lower house 2 is provided with supporting table 9,
The inner chamber of the insulating boot lower house 2 is provided with disconnecting switch 10, and the top of the disconnecting switch 10 is provided with spark chamber 13, institute
The left and right sidewall for stating disconnecting switch 10 is provided with engaging lug 11, and engaging lug 11 is arranged on the top of supporting table 9, the connection
The top of ear 11 is plugged with connecting bolt 12, and the engaging lug 11 and supporting table 9 are connected by connecting bolt 12, described to keep apart
The bottom for closing 10 is provided with grounding connection line 14, and the inner chamber left wall of the insulating boot lower house 2 is provided with copper busbar 15, described
Copper busbar 15 is arranged on the bottom of supporting table 9, and the left end of the grounding connection line 14 at the top of the right wall of copper busbar 15 with connecting
Connect, the right wall bottom of the copper busbar 15 is provided with earth lead 16, and the earth lead 16 is plugged on the interior of earthing sleeve 8
Chamber, the control device 5 are electrically connected with buzzer 4.
Wherein, the top of the insulating boot lower house 2 is provided with polyethylene layer 21, enhances the insulation of insulating boot
Property, the top of the polyethylene layer 21 is provided with acrylic coating weathering layer 22, enhances the weatherability of insulating barrier, extends
Service life, the left end of the mounting ear 3 offer rotation slot 31, and the inner chamber of the rotation slot 31 is plugged with support bar 32,
The top of the rotation slot 31 is longitudinally plugged with pivot pin 33, and the mounting ear 3 and support bar 32 are connected by pivot pin 33, the branch
The left end of strut 32 is provided with fixed plate 34, and the right wall corner of the fixed plate 34 is provided with pin 35, is easy to insulating boot
Installation is fixed, and the bottom of the insulating boot upper shell 1 is provided with boss 111, and the top of the insulating boot lower house 2 offers recessed
Groove 211, the boss 111 are plugged on the inner chamber of groove 211, and the intracavity bottom of the groove 211 is provided with sealing rubber pad
212, the left wall transverse splicing of the insulating boot lower house 2 has a fastening bolt 213, under the insulating boot upper shell 1 and insulating boot
Housing 2 is fixed by fastening bolt 213, and insulating boot upper shell 1 is connected with insulating boot lower house 2 by way of grafting,
Make insulating boot installation easy to disassemble, the outer wall of the visual window 17 is provided with transparent organic glass layer, passes through setting for visual window 17
The working condition of electrical equipment can conveniently be observed by putting, and the outer wall of the insulating boot upper shell 1 and insulating boot lower house 2 offers
Heat emission hole, makes the thermal diffusivity of insulating boot strengthen, and the bottom of the insulating boot lower house 2 offers apopore, makes in insulating boot
Rainwater can exclude in time.
Operation principle：The present invention is passed through by the boss 111 of insulating boot upper shell 1 and the groove 211 of insulating boot lower house 2
The mode of grafting connects, and is fixed by fastening bolt 213, makes insulating boot installation easy to disassemble, the interior bottom of chamber of groove 211
Portion is provided with sealing rubber pad 212, adds sealing, controls the sounding of buzzer 4 by control device 5, disperses and build Bird's Nest
Small bird, avoid that accident occurs, have the cabling of insulating boot by the setting of inlet wire sleeve 6, outlet sleeve 7 and earthing sleeve 8
Sequence, the grade electric components of disconnecting switch 10 is fixedly mounted by connecting bolt 12 by the setting of supporting table 9, pass through spark chamber
13 setting is not disturbed when protecting electric components to work by electric arc, and the grade electric components of disconnecting switch 10 pass through grounding connection
Line 14 connects copper busbar 15, and copper busbar 15 is connected with earth lead 16, and caused electrostatic is imported into underground, makes insulating boot
Security is strengthened, and mounting ear 3, mounting ear 3 are provided with by the left and right sidewall of insulating boot upper shell 1 and insulating boot lower house 2
Left end offer rotation slot 31, the inner chamber of rotation slot 31 is plugged with support bar 32, the top longitudinal direction grafting of the rotation slot 31
There is pivot pin 33, mounting ear 3 and support bar 32 are connected by pivot pin 33, allow support bar 32 in the rotation slot 31 of mounting ear 3
Rotated, facilitate mounting and adjusting, the left end of support bar 32 is provided with fixed plate 34, and the right wall corner of fixed plate 34 is even to be provided with
Pin 35, fixed plate 34 is connected with what fixture was stablized by pin 35, is provided with by the outer wall of visual window 17
Bright perspex layer, visual window 17 set the working condition that can conveniently observe electrical equipment, insulating boot upper shell 1 and insulation
The outer wall of cover lower house 2 offers heat emission hole, makes the thermal diffusivity of insulating boot strengthen, and the bottom of insulating boot lower house 2 offers out
Water hole, the rainwater in insulating boot is excluded in time, polyethylene layer is provided with by the top of insulating boot lower house 2
21, the insulating properties of insulating boot is enhanced, acrylic coating weathering layer 22 is provided with by the top of polyethylene layer 21, is strengthened
The weatherability of insulating barrier, extends service life.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of insulating boot for power system, including insulating boot upper shell (1), it is characterised in that the insulating boot upper casing
The bottom of body (1) is provided with the left and right sides of insulating boot lower house (2), the insulating boot upper shell (1) and insulating boot lower house (2)
Wall is provided with mounting ear (3), and the top left and right ends of the insulating boot upper shell (1) are respectively arranged with buzzer (4) and control
Device (5) processed, the outer wall of the insulating boot upper shell (1) offer visual window (17), the inner chamber of the insulating boot lower house (2)
Left wall is plugged with inlet wire sleeve (6), and the bottom of the insulating boot lower house (2) is plugged with earthing sleeve (8), under the insulating boot
The right wall bottom of housing (2) is plugged with outlet sleeve (7), and the inner chamber left and right sidewall of the insulating boot lower house (2) is provided with
Supporting table (9), the inner chamber of the insulating boot lower house (2) are provided with disconnecting switch (10), the top of the disconnecting switch (10)
Spark chamber (13) is provided with, the left and right sidewall of the disconnecting switch (10) is provided with engaging lug (11), and the engaging lug
(11) top of supporting table (9) is arranged on, connecting bolt (12), the engaging lug are plugged with the top of the engaging lug (11)
(11) connected with the supporting table (9) by the connecting bolt (12), the bottom of the disconnecting switch (10) is provided with ground connection
Connecting line (14), the inner chamber left wall of the insulating boot lower house (2) are provided with copper busbar (15), and the copper busbar (15) sets
Put at the bottom of the supporting table (9), the left end of the grounding connection line (14) and the right wall top of the copper busbar (15)
Connection, the right wall bottom of the copper busbar (15) are provided with earth lead (16), and the earth lead (16) is plugged on ground connection
The inner chamber of sleeve (8), the control device (5) are electrically connected with buzzer (4).
2. the insulating boot according to claim 1 for power system, it is characterised in that the left end of the mounting ear (3)
Rotation slot (31) is offered, the inner chamber of the rotation slot (31) is plugged with support bar (32), and the top of the rotation slot (31) is indulged
Connected to pivot pin (33), the mounting ear (3) and the support bar (32) is plugged with by the pivot pin (33), the support bar
(32) left end is provided with fixed plate (34), and the right wall corner of the fixed plate (34) is provided with pin (35).
3. the insulating boot according to claim 1 for power system, it is characterised in that the insulating boot upper shell (1)
Bottom be provided with boss (111), opened up fluted (211) at the top of the insulating boot lower house (2), the boss (111)
The inner chamber of the groove (211) is plugged on, the intracavity bottom of the groove (211) is provided with sealing rubber pad (212), described exhausted
The left wall transverse splicing of edge cover lower house (2) has fastening bolt (213), the insulating boot upper shell (1) and insulating boot lower house
(2) it is fixed by fastening bolt (213).
4. the insulating boot according to claim 1 for power system, it is characterised in that the outer wall of the visual window (17)
It is provided with transparent organic glass layer, the outer wall of the insulating boot upper shell (1) and insulating boot lower house (2) offers heat emission hole,
The bottom of the insulating boot lower house (2) offers apopore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611027825.8A CN106532452B (en) | 2016-11-18 | 2016-11-18 | A kind of insulating boot for power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611027825.8A CN106532452B (en) | 2016-11-18 | 2016-11-18 | A kind of insulating boot for power system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106532452A CN106532452A (en) | 2017-03-22 |
| CN106532452B true CN106532452B (en) | 2018-03-16 |
Family
ID=58351735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611027825.8A Expired - Fee Related CN106532452B (en) | 2016-11-18 | 2016-11-18 | A kind of insulating boot for power system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106532452B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112275757A (en) * | 2020-08-28 | 2021-01-29 | 江苏久高电子科技有限公司 | Dust treatment device and method for manufacturing air fan |
| CN112885635B (en) * | 2021-01-12 | 2023-07-14 | 浙江越岭电气有限公司 | Indoor high-voltage grounding switch |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008228404A (en) * | 2007-03-09 | 2008-09-25 | Tokyo Electric Power Co Inc:The | Rain water protection device |
| CN101789565A (en) * | 2010-03-25 | 2010-07-28 | 北京双杰电气股份有限公司 | 24KV solid fully-closed switch insulation cover |
| CN102420400A (en) * | 2011-12-16 | 2012-04-18 | 常州瑞联电力科技有限公司 | Insulating cover |
| CN203026792U (en) * | 2012-12-27 | 2013-06-26 | 杭州曙光电器有限公司 | Insulating cover |
| CN103839727A (en) * | 2014-03-28 | 2014-06-04 | 杨明 | Solid insulation full-sealed three-position disconnecting switch |
| CN105576547A (en) * | 2016-03-03 | 2016-05-11 | 北京龙源开关设备有限责任公司 | Reinforced insulation protective cover for environment-friendly type gas insulation ring network cabinet isolation switch |
-
2016
- 2016-11-18 CN CN201611027825.8A patent/CN106532452B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008228404A (en) * | 2007-03-09 | 2008-09-25 | Tokyo Electric Power Co Inc:The | Rain water protection device |
| CN101789565A (en) * | 2010-03-25 | 2010-07-28 | 北京双杰电气股份有限公司 | 24KV solid fully-closed switch insulation cover |
| CN102420400A (en) * | 2011-12-16 | 2012-04-18 | 常州瑞联电力科技有限公司 | Insulating cover |
| CN203026792U (en) * | 2012-12-27 | 2013-06-26 | 杭州曙光电器有限公司 | Insulating cover |
| CN103839727A (en) * | 2014-03-28 | 2014-06-04 | 杨明 | Solid insulation full-sealed three-position disconnecting switch |
| CN105576547A (en) * | 2016-03-03 | 2016-05-11 | 北京龙源开关设备有限责任公司 | Reinforced insulation protective cover for environment-friendly type gas insulation ring network cabinet isolation switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106532452A (en) | 2017-03-22 |
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Granted publication date: 20180316 Termination date: 20191118 |