CN110112032B - Arc extinguishing device for live working - Google Patents
Arc extinguishing device for live working Download PDFInfo
- Publication number
- CN110112032B CN110112032B CN201910465669.0A CN201910465669A CN110112032B CN 110112032 B CN110112032 B CN 110112032B CN 201910465669 A CN201910465669 A CN 201910465669A CN 110112032 B CN110112032 B CN 110112032B
- Authority
- CN
- China
- Prior art keywords
- rod
- insulating
- wire
- clamping block
- pull rod
- 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.)
- Active
Links
- 239000002184 metal Substances 0.000 claims abstract description 12
- 230000001629 suppression Effects 0.000 claims abstract description 8
- 230000001276 controlling effect Effects 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000005253 cladding Methods 0.000 claims 1
- 230000008033 biological extinction Effects 0.000 abstract description 10
- 230000010354 integration Effects 0.000 abstract description 2
- 244000309464 bull Species 0.000 abstract 4
- 239000012212 insulator Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/70—Structural association with built-in electrical component with built-in switch
- H01R13/703—Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part
Landscapes
- Suspension Of Electric Lines Or Cables (AREA)
- Manipulator (AREA)
Abstract
The utility model provides an arc suppression device that live working was used, including the fastener anchor clamps, fastener anchor clamps below is equipped with vacuum arc suppression switch tube, the upper end and the fastener anchor clamps fixed connection of vacuum arc suppression switch tube, the lower extreme of vacuum arc suppression switch tube is connected with a pull rod through the connector, the outside cover at vacuum arc suppression switch tube and connector is equipped with an insulating cylinder, the outside cover at the pull rod is equipped with the lateral wall of insulating rod and is equipped with limit switch device, the bottom of pull rod is equipped with the pull rod, the outer wall of insulating cylinder is equipped with the bull stick, be equipped with insulating elasticity clamp and metal clamp on the bull stick, connect through the bypass wire between the lower part and the metal clamp of vacuum arc suppression switch tube, the branch drainage line is fixed on the bull stick through insulating elasticity clamp and metal clamp. The 'one-rod-multi-purpose' mode optimizes the operation flow; the main line and the branch drainage line are independently and fixedly installed, so that the operation comfort is improved; the branch drainage line is fixed in the groove through the bull stick, realizes the integration function of arc extinction instrument, and insulating design has guaranteed the security performance.
Description
Technical Field
The invention relates to a safety protection tool for live working of a distribution network line, in particular to an arc extinguishing device for live working.
Background
Along with the rapid development of market economy, the requirements on power supply reliability are higher and higher, enterprises develop reliable guarantees of power which cannot be separated, and the original power outage overhaul and capacity increase of a power outage transformer are not suitable and seriously influence the reliability of power consumption in enterprise production. Live working is taken as a novel uninterrupted maintenance mode, the contradiction between power and user demands is solved, uninterrupted maintenance is more and more emphasized, and trend is gradually formed. In the live working process, the indexes such as the working efficiency and the safety of the live working are determined by the importance of insulating tools, hardware equipment and the like. Live working has irreplaceable superiority as a highly specialized maintenance process. The method has the advantages that the power failure range can be effectively reduced through the participation of live working, the power supply reliability is improved, the continuous power utilization requirement of users is ensured to the greatest extent, and the economic loss caused by power failure of production enterprises is reduced; meanwhile, the defect of equipment in operation can be eliminated without power failure; the timeliness and flexibility of overhaul are realized; the power supply enterprises synchronously realize the advantages of reducing the electric energy loss and creating income, and the like. Live splicing of branch lines and live access of newly-built cable lines is the most common live working project, and is also the live working project with the most obvious economic benefit. According to the electric safety regulations, arc extinguishing devices are needed for live access construction of branch lines, high-voltage cables and the like, and the purpose of the arc extinguishing devices is to solve the problem that electric arcs caused by current damage to operators, and the success or failure of live operation is directly determined by analyzing the significance of safety protection and the advantages and disadvantages of arc extinguishing tools. The conventional arc extinguishing tool for live working adopts a separation design, so that the defects of large tool size, time and labor waste in operation are overcome; complicated arc extinction function, lead wire installation and the like, and the electrified operation in a narrow 10kv line environment needs to be completed by a plurality of people in a matching way, and the comprehensive utilization rate of tools is low and the like.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the arc extinction device with simplified process and high safety performance.
The technical problem to be solved by the invention is realized by the following technical scheme, and the arc extinguishing device for live working is characterized in that:
the wire clamp comprises a wire clamp for fixing the wire clamp, wherein the wire clamp at least comprises a main wire clamp opening and a branch wire clamp opening;
the vacuum arc-extinguishing switch tube is arranged below the wire clamp fixture, the upper end part of the vacuum arc-extinguishing switch tube is fixedly connected with the wire clamp fixture, the lower end part of the vacuum arc-extinguishing switch tube is connected with a pull rod through a connector, an insulating cylinder is sleeved outside the vacuum arc-extinguishing switch tube and the connector, an insulating rod is sleeved outside the pull rod, the top of the insulating rod is fixedly connected with the bottom of the insulating cylinder, the side wall of the insulating rod is provided with a limit switch device for limiting the position of the pull rod, the bottom of the pull rod is provided with a pull handle for controlling the opening and closing of the vacuum arc-extinguishing switch tube,
the outer wall of the insulating cylinder is provided with a vertically arranged rotating rod, the outer wall of the insulating cylinder is provided with a slip ring for installing the rotating rod,
an insulating elastic clamp for fixing the branch drainage wire is arranged on the rotating rod, a metal clamp for fixing the branch drainage wire is arranged at the top of the rotating rod, the lower end part of the vacuum arc suppression switch tube is connected with the metal clamp through a bypass wire,
the branch drainage wire is fixed on the rotating rod through an insulating elastic clamp and a metal clamp, the upper part of the branch drainage wire is provided with a wire connecting part corresponding to a branch wire clamp port of the wire clamp,
the bottom of the rotating rod is provided with a rotating operation ring for controlling the rotating rod to rotate.
The technical problem to be solved by the invention can be further solved by the following technical scheme that the limit switch device comprises a control box arranged on the side wall of the insulating rod, a push-pull rod perpendicular to the axis of the insulating rod is arranged in the control box, a limit clamping groove is arranged on the pull rod, and a limit clamping block matched with the limit clamping groove is arranged at the end part of the push-pull rod.
The technical problem to be solved by the invention can be further solved by the following technical scheme that a baffle and a pressure spring are arranged on a push-pull rod in a control box, the baffle is positioned in the control box and is close to the outer wall of an insulating rod, the pressure spring is positioned between the baffle and the inner surface of the control box, the push-pull rod penetrates through the control box, an outer top plate is arranged at the outer end part of the push-pull rod, an adjusting block which is arranged inwards is arranged on the outer top plate, and a stepped adjusting groove which is arranged corresponding to the adjusting block is arranged on the outer surface of the control box.
The technical problem to be solved by the invention can be further solved by the following technical scheme that the wire clamp comprises a front clamping block and a rear clamping block which are arranged corresponding to the fixing notch of the operating rod of the wire clamp base, one ends of the front clamping block and the rear clamping block are fixedly connected, the other ends of the front clamping block and the rear clamping block are provided with openings for the wire clamp base to enter, the openings are provided with magnetic sealing mechanisms, and the front clamping block is fixedly connected with the upper end part of the vacuum arc extinction switch tube.
The technical problem to be solved by the invention can be further solved by the following technical scheme that the magnetic sealing mechanism comprises a magnetic connecting rod penetrating through a rear clamping block, a magnetic block which is arranged corresponding to the end part of the magnetic connecting rod is arranged on a front clamping block, a guide hole for the magnetic connecting rod to slide is arranged on the rear clamping block, and an operation pull ring is arranged at the other end of the magnetic connecting rod.
The technical problem to be solved by the invention can be further solved by the following technical scheme that the outside of the wire connecting part positioned at the branch wire clamp port is coated with an insulating sleeve.
Compared with the prior art, the wire clamp fixing device is organically integrated with the arc extinction tool, so that the construction difficulty is reduced, the operation efficiency is improved in a one-rod-multi-purpose mode, and the operation flow is optimized; the independent and fixed installation of the main line and the branch drainage line is realized by adopting the matched special wire clamps, so that the installation quality is ensured, and meanwhile, the operation comfort is improved; the branch drainage line is fixed in the groove through the rotating rod, so that the integration function of arc extinction tools is realized, the working efficiency is improved, and the construction operation is more standard and ordered; the arc extinction switch, the pull rod, the control switch, the rotating rod and the like are all in an insulation design, the bypass wire is routed from the insulation tube, the routing path is minimized, and the safety performance of the tool is ensured in the application process.
Drawings
Fig. 1 is a schematic structural view of an arc extinguishing device for live working;
FIG. 2 is a schematic structural view of a wire clamp;
FIG. 3 is a schematic diagram of a position limit control device;
FIG. 4 is a left side view of the clip;
FIG. 5 is a front view of the wire clip;
fig. 6 is a schematic structural view of the hook-shaped operating lever.
Detailed Description
Specific embodiments of the invention are described further below in order to facilitate a further understanding of the invention by those skilled in the art without limiting the scope of the claims thereto.
An arc extinction device for live working comprises a wire clamp 3 for fixing a wire clamp 1, wherein the wire clamp 1 at least comprises a main wire clamp opening and a branch wire clamp opening;
the wire clamp fixture 3 below be equipped with vacuum arc-extinguishing switch tube 4, the upper end and the wire clamp fixture 3 fixed connection of vacuum arc-extinguishing switch tube 4, the lower tip of vacuum arc-extinguishing switch tube 4 is connected with a pull rod 7 through a connector 6, the outside cover at vacuum arc-extinguishing switch tube 4 and connector 6 is equipped with an insulating cylinder 8, the outside cover at pull rod 7 is equipped with insulator rod 9, the top and the bottom fixed connection of insulator rod 9 of insulator cylinder 8, the lateral wall of insulator rod 9 is equipped with the limit switch device 11 that is used for prescribing a limit to the position of pull rod 7, the bottom of pull rod 7 is equipped with the pull rod 10 that is used for controlling vacuum arc-extinguishing switch tube 4 to open and shut, vacuum arc-extinguishing switch tube 4 makes the inside contact of vacuum arc-extinguishing switch tube separate under the effect of pull rod 10, in order to keep this kind of separation state, realize vacuum arc-extinguishing switch tube separation, the fixation of closing state through the limit switch device 11 that is fixed at the insulator rod middle part. The vacuum arc extinction switch tube used in the invention is produced by Shanghai Huatong, and the model is ZKTJ-600/1.14.
A vertically arranged rotating rod 14 is arranged on the outer wall of the insulating cylinder 8, a slip ring 13 for installing the rotating rod 14 is arranged on the outer wall of the insulating cylinder 8,
the rotating rod 14 is provided with an insulating elastic clamp for fixing the branch drainage wire 15, the top of the rotating rod 14 is provided with a metal clamp 16 for fixing the branch drainage wire, the lower end part of the vacuum arc-extinguishing switch tube 4 is connected with the metal clamp 16 through a bypass wire 5,
the branch drainage wire 15 is fixed on the rotating rod 14 through an insulating elastic clamp and a metal clamp 16, a wire connecting part corresponding to a branch wire clamping port of the wire clamp is arranged at the upper part of the branch drainage wire 15, and an insulating sleeve 17 is coated outside the wire connecting part at the branch wire clamping port.
A rotation operating ring 12 for controlling the rotation of the rotating lever 14 is provided at the bottom of the rotating lever 14. A hook-shaped operating rod is provided for hooking the rotating operating ring to rotate the rotating rod 14, and an insulating layer is coated on an operating handle 41 of the hook-shaped operating rod.
The limit switch device 11 comprises a control box 111 arranged on the side wall of the insulating rod 9, a push-pull rod perpendicular to the axis of the insulating rod 9 is arranged in the control box 111, a limit clamping groove 118 is arranged on the pull rod 8, and a limit clamping block 117 matched with the limit clamping groove 118 is arranged at the end part of the push-pull rod.
The push-pull rod in the control box 111 is provided with a baffle 112 and a pressure spring 113, the baffle 112 is positioned in the control box 111 and is close to the outer wall of the insulating rod 9, the pressure spring 113 is positioned between the baffle 112 and the inner surface of the control box 111, the push-pull rod passes through the control box 111 and is provided with an outer top plate 115 at the outer end part of the push-pull rod, the outer top plate 115 is provided with an inwardly arranged regulating block 116, and the outer surface of the control box 111 is provided with a stepped regulating groove 114 which is correspondingly arranged with the regulating block 116. The stepped adjusting groove 114 is divided into an upper part and a lower part, the upper part is a high adjusting groove, the lower part is a low adjusting groove, when the limiting clamping block 117 is positioned in the limiting clamping groove 118, the adjusting block 116 is positioned in the low adjusting groove, and when the limiting clamping block 117 needs to be pulled out from the limiting clamping groove 118, the push-pull rod can be rotated to adjust the adjusting block 116 into the high adjusting groove.
The wire clamp comprises a wire clamp base 21, and a main wire pressing plate 23 and a branch wire pressing plate 22 which are matched with the wire clamp base, wherein the wire clamp base is connected with the main wire pressing plate 23 and the branch wire pressing plate 22 through fastening bolts; the bottom of the wire clamp base 21 is provided with an operating rod fixing notch 2.
The wire clamp fixture 3 comprises a front clamping block 32 and a rear clamping block 31 which are correspondingly arranged with an operating rod fixing notch 2 of a wire clamp base, one ends of the front clamping block 32 and the rear clamping block 31 are fixedly connected, the other ends of the front clamping block 32 and the rear clamping block 31 are provided with openings for the wire clamp base to enter, a magnetic sealing mechanism is arranged at each opening, the front clamping block 32 is fixedly connected with the upper end of a vacuum arc-extinguishing switch tube 4, an L-shaped plate is fixed on the front side of the front clamping block 32, the L-shaped plate comprises a vertical baffle 36 and a connecting plate 37 which is vertically arranged with the vertical baffle in the horizontal direction, and a connecting hole 38 which is fixedly connected with the upper end of the vacuum arc-extinguishing switch tube 4 is formed in the connecting plate 37.
The magnetic sealing mechanism comprises a magnetic connecting rod 33 penetrating through a rear clamping block 31, a magnetic block 35 which is arranged corresponding to the end part of the magnetic connecting rod 33 is arranged on a front clamping block 32, a guide hole for the magnetic connecting rod 33 to slide is arranged on the rear clamping block 31, and an operation pull ring 34 is arranged at the other end of the magnetic connecting rod 33. The operating pull ring 34 is pulled out by the hook-shaped operating rod, so that the wire clamp 3 is separated from the wire clamp after the arc extinction work is completed.
Claims (4)
1. An arc extinguishing device for live working, which is characterized in that:
the wire clamp comprises a wire clamp for fixing the wire clamp, wherein the wire clamp at least comprises a main wire clamp opening and a branch wire clamp opening;
the vacuum arc-extinguishing switch tube is arranged below the wire clamp fixture, the upper end part of the vacuum arc-extinguishing switch tube is fixedly connected with the wire clamp fixture, the lower end part of the vacuum arc-extinguishing switch tube is connected with a pull rod through a connector, an insulating cylinder is sleeved outside the vacuum arc-extinguishing switch tube and the connector, an insulating rod is sleeved outside the pull rod, the top of the insulating rod is fixedly connected with the bottom of the insulating cylinder, the side wall of the insulating rod is provided with a limit switch device for limiting the position of the pull rod, the bottom of the pull rod is provided with a pull handle for controlling the opening and closing of the vacuum arc-extinguishing switch tube,
the outer wall of the insulating cylinder is provided with a vertically arranged rotating rod, the outer wall of the insulating cylinder is provided with a slip ring for installing the rotating rod,
an insulating elastic clamp for fixing the branch drainage wire is arranged on the rotating rod, a metal clamp for fixing the branch drainage wire is arranged at the top of the rotating rod, the lower end part of the vacuum arc suppression switch tube is connected with the metal clamp through a bypass wire,
the branch drainage wire is fixed on the rotating rod through an insulating elastic clamp and a metal clamp, the upper part of the branch drainage wire is provided with a wire connecting part corresponding to a branch wire clamp port of the wire clamp,
a rotating operation ring for controlling the rotation of the rotating rod is arranged at the bottom of the rotating rod; the limit switch device comprises a control box arranged on the side wall of the insulating rod, a push-pull rod perpendicular to the axis of the insulating rod is arranged in the control box, a limit clamping groove is formed in the pull rod, and a limit clamping block matched with the limit clamping groove is arranged at the end part of the push-pull rod;
the outside cladding that wire connecting portion lie in branch fastener mouth has insulating cover.
2. The arc extinguishing device for live working according to claim 1, wherein: the push-pull rod in the control box is provided with a baffle and a pressure spring, the baffle is positioned in the control box and is close to the outer wall of the insulating rod, the pressure spring is positioned between the baffle and the inner surface of the control box, the push-pull rod penetrates through the control box and is provided with an outer top plate at the outer end part of the push-pull rod, the outer top plate is provided with an inwards-arranged regulating block, and the outer surface of the control box is provided with a stepped regulating groove which is correspondingly arranged with the regulating block.
3. The arc extinguishing device for live working according to claim 1, wherein: the wire clamp fixture comprises a front clamping block and a rear clamping block which are arranged corresponding to the operating rod fixing notch of the wire clamp base, one ends of the front clamping block and the rear clamping block are fixedly connected, an opening for the wire clamp base to enter is formed in the other ends of the front clamping block and the rear clamping block, a magnetic sealing mechanism is arranged at the opening, and the front clamping block is fixedly connected with the upper end of the vacuum arc-extinguishing switch tube.
4. The arc extinguishing device for live working according to claim 3, wherein: the magnetic sealing mechanism comprises a magnetic connecting rod penetrating through the rear clamping block, a magnetic block corresponding to the end part of the magnetic connecting rod is arranged on the front clamping block, a guide hole for the magnetic connecting rod to slide is formed in the rear clamping block, and an operation pull ring is arranged at the other end of the magnetic connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910465669.0A CN110112032B (en) | 2019-05-30 | 2019-05-30 | Arc extinguishing device for live working |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910465669.0A CN110112032B (en) | 2019-05-30 | 2019-05-30 | Arc extinguishing device for live working |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110112032A CN110112032A (en) | 2019-08-09 |
| CN110112032B true CN110112032B (en) | 2023-12-05 |
Family
ID=67493237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910465669.0A Active CN110112032B (en) | 2019-05-30 | 2019-05-30 | Arc extinguishing device for live working |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110112032B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113471873B (en) * | 2021-07-07 | 2023-03-31 | 国网辽宁省电力有限公司营口供电公司 | 66 KV live-line arc breaking and extinguishing device and manufacturing process |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1636885A1 (en) * | 1988-06-14 | 1991-03-23 | Всесоюзный научно-исследовательский, проектно-конструкторский и технологический институт низковольтного аппаратостроения | Vacuum arc-quenching chamber |
| CN1308355A (en) * | 2000-02-08 | 2001-08-15 | 东芝株式会社 | Vacuum switch device |
| JP2001309513A (en) * | 2000-04-24 | 2001-11-02 | Kansai Electric Power Co Inc:The | End-cap mounting rod for active horn |
| KR100730036B1 (en) * | 2006-06-21 | 2007-06-20 | 주식회사 광명전기 | Load breake switch |
| CN201639190U (en) * | 2009-12-30 | 2010-11-17 | 北京市电力公司 | Charged arc-suppression draining operation device |
| KR101036147B1 (en) * | 2010-06-30 | 2011-05-23 | 일성이앤지(주) | Switching and breaking part used in switch and breaker, method for manufacturing the same, and switch and breaker having the same |
| CN102832567A (en) * | 2012-08-09 | 2012-12-19 | 国家电网公司 | Arc suppressing device for leads disconnected in live manner and method for disconnecting leads in live manner |
| CN103441026A (en) * | 2013-08-30 | 2013-12-11 | 沈阳华德海泰电子有限公司 | Single-fracture can-type vacuum circuit breaker |
| CN204464857U (en) * | 2015-04-02 | 2015-07-08 | 国家电网公司 | A kind of wire charged disconnecting lead-in wire line clamping device |
| KR20180014636A (en) * | 2016-08-01 | 2018-02-09 | 주식회사 조광전기 | By-pass cable terminal apparatus |
-
2019
- 2019-05-30 CN CN201910465669.0A patent/CN110112032B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1636885A1 (en) * | 1988-06-14 | 1991-03-23 | Всесоюзный научно-исследовательский, проектно-конструкторский и технологический институт низковольтного аппаратостроения | Vacuum arc-quenching chamber |
| CN1308355A (en) * | 2000-02-08 | 2001-08-15 | 东芝株式会社 | Vacuum switch device |
| JP2001309513A (en) * | 2000-04-24 | 2001-11-02 | Kansai Electric Power Co Inc:The | End-cap mounting rod for active horn |
| KR100730036B1 (en) * | 2006-06-21 | 2007-06-20 | 주식회사 광명전기 | Load breake switch |
| CN201639190U (en) * | 2009-12-30 | 2010-11-17 | 北京市电力公司 | Charged arc-suppression draining operation device |
| KR101036147B1 (en) * | 2010-06-30 | 2011-05-23 | 일성이앤지(주) | Switching and breaking part used in switch and breaker, method for manufacturing the same, and switch and breaker having the same |
| CN102832567A (en) * | 2012-08-09 | 2012-12-19 | 国家电网公司 | Arc suppressing device for leads disconnected in live manner and method for disconnecting leads in live manner |
| CN103441026A (en) * | 2013-08-30 | 2013-12-11 | 沈阳华德海泰电子有限公司 | Single-fracture can-type vacuum circuit breaker |
| CN204464857U (en) * | 2015-04-02 | 2015-07-08 | 国家电网公司 | A kind of wire charged disconnecting lead-in wire line clamping device |
| KR20180014636A (en) * | 2016-08-01 | 2018-02-09 | 주식회사 조광전기 | By-pass cable terminal apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110112032A (en) | 2019-08-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110112032B (en) | Arc extinguishing device for live working | |
| CN114665386B (en) | Power distribution cabinet convenient for wiring | |
| CN102227071B (en) | Manipulator clamping linking wire clamp special for high voltage electriferous work | |
| CN103606853A (en) | Operating method for replacing linear V insulator string on super and ultra-high voltage direct current transmission line in electrified mode | |
| CN209691677U (en) | A kind of arc-extinction device of livewire work | |
| CN201994604U (en) | Special manipulator clamping and stranding wire holder for high-voltage live-wire work | |
| CN107732810A (en) | A kind of waterproof assembling ground wire casing | |
| CN207625119U (en) | A kind of low-tension switch cabinet | |
| CN113972535B (en) | Elbow type head hanging ground wire auxiliary device | |
| CN211508494U (en) | Line laying device for building electrical installation | |
| CN207165965U (en) | A kind of gas tank apparatus structure of the recessed bag of band | |
| CN109412070A (en) | A kind of uninterrupted operation device and uninterrupted operation method based on 0.4 kilovolt | |
| CN216793554U (en) | Intelligent vacuum circuit breaker convenient to maintain and overhaul | |
| CN208923756U (en) | Facilitate the unlimited port type beginning case of installation cable | |
| CN212210110U (en) | Power equipment control system of power distribution room | |
| KR102358265B1 (en) | Insulation cover for indirect line wire | |
| CN219436507U (en) | Cable special wire clamp | |
| CN215185687U (en) | Low-voltage cable branch box convenient to dismantle | |
| CN109093550A (en) | It is a kind of for fasten drainage crab bolt Novel electric wrench | |
| CN213460139U (en) | Quick cable joint installation device | |
| CN209358142U (en) | A kind of GCK cabinet earthing or grounding means | |
| CN115842294B (en) | Main switch control device of ring main unit power distribution network | |
| CN210430509U (en) | Safe lock structure of switch board | |
| CN211790564U (en) | Relay protection screen cable protection device | |
| CN212411721U (en) | Intelligent transformer of fire prevention |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20231109 Address after: 222300 78 Jingdu Avenue, Niushan Town, Donghai County, Lianyungang City, Jiangsu Province Applicant after: DONGHAI POWER SUPPLY BRANCH OF STATE GRID JIANGSU ELECTRIC POWER CO.,LTD. Applicant after: Lianyungang Dongneng Power Engineering Co.,Ltd. Address before: 222000 No. 78, Jingdu Avenue, Niushan Town, Donghai County, Lianyungang City, Jiangsu Province Applicant before: DONGHAI POWER SUPPLY BRANCH OF STATE GRID JIANGSU ELECTRIC POWER CO.,LTD. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |