CN104158049A - Earthing clamp device and operation method thereof - Google Patents
Earthing clamp device and operation method thereof Download PDFInfo
- Publication number
- CN104158049A CN104158049A CN201410343063.7A CN201410343063A CN104158049A CN 104158049 A CN104158049 A CN 104158049A CN 201410343063 A CN201410343063 A CN 201410343063A CN 104158049 A CN104158049 A CN 104158049A
- Authority
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- Prior art keywords
- clamp
- action bars
- earthing clamp
- hook
- earthing
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 38
- 230000009471 action Effects 0.000 claims description 58
- 230000004888 barrier function Effects 0.000 claims description 31
- 238000012795 verification Methods 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 15
- 230000007246 mechanism Effects 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 239000012212 insulator Substances 0.000 claims 4
- 239000000725 suspension Substances 0.000 claims 4
- 230000008569 process Effects 0.000 abstract description 4
- 238000007796 conventional method Methods 0.000 abstract description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012913 prioritisation Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/22—End pieces terminating in a spring clip
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/027—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for connecting conductors by clips
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Electric Cable Installation (AREA)
Abstract
The invention discloses an earthing clamp device. According to the earthing clamp device, a stay cord used for being connected with two earthing clamp bodies is arranged at the rear end of an earthing clamp main body; the earthing clamp is smoothly clamped on a power transmission line through an operating rod connected with a cylinder piece provided with an inverted cone cavity structure inside and an operating rod provided with a hook at the top end. Rigid collision between the earthing clamp and the power transmission line is avoided in the whole process; the earthing clamp is opened before being taken down, and scratch or breakage of the power transmission line caused by adopting a stay wire to pull the power transmission line in the conventional method is avoided; the operation method of the earthing clamp device is simple and convenient, the entire hanging and dismounting process of the earthing clamp is smooth and controllable, and security of the power transmission line is effectively guaranteed.
Description
Technical field
The present invention relates to electric grounding wire clamping device technical field, relate in particular to a kind of earthing clamp device and the operational method thereof that can effectively avoid damaging power transmission cable.
Background technology
In the time of the operation of transmission line power cut construction, first will take safety measures to maintenance circuit, groundwork is to carry out electrical verification and hanging earthing conductor, the earth connection articulating on shaft tower at present, the main touch-type spring dropout earthing clamp that adopts, ties up to earthing clamp afterbody with a thin insulation ropes.Staff opens wire clamp in advance, winched to wire top with afterbody insulation ropes, then, loosen insulating cord downwards, make earthing clamp under self and the annealed copper wire Action of Gravity Field that is attached thereto, fall rapidly, after contacting with wire, the touch-type support chip of earthing clamp is threaded off, the opening closure of earthing clamp, be clipped on wire, complete whole installation process.Because wire and cross-arm are at a distance of 2-3 rice, earthing clamp one side is connected with annealed copper wire (center of gravity can be offset), and under the impact of natural wind, earthing clamp can not keep vertical downward direction always, so installation difficulty is large, affects operating efficiency.In addition, when this kind of earthing clamp installed, need to touch power transmission line by dropout, in the time taking off, adopt and pull bracing wire or earth connection that wire clamp is left behind from power transmission line, often wire is caused to cut equivalent damage.
Be that 201120560411.8 patent of invention discloses a kind of self-locking wire end earthing clamp as authorized disclosed application number on October 3rd, 2012, and all there is above-mentioned defect for a kind of auxiliary device for installation of grounding wire that the patent application of CN 203398349U provides in the publication number of authorizing on January 15th, 2014.
Summary of the invention
The object of this invention is to provide a kind of earthing clamp device, by adopting this earthing clamp device, effectively avoid causing the generation of power transmission line degree of impairment in installing and taking off process.
Another object of the present invention is to provide and a kind ofly adopts above-mentioned earthing clamp device to carry out the method for operation.
For realizing the technical scheme that object of the present invention adopts be: a kind of earthing clamp device, comprise wire clip body and operating mechanism, described wire clip body comprises by rotating shaft and the hinged wire clamp clamp of brute spring, described wire clamp clamp front portion is provided with the groove for clamping power transmission line, described wire clamp clamp tail end is provided with the stay cord being connected between clamp, described operating mechanism comprises two insulating bars, wherein an action bars top is provided with hook structure, another root action bars top has metal screw, and be provided with inside and have the barrier part of reverse taper cavity structure by described metal screw, described barrier part one side is provided with bolt hole, described barrier part is connected with described metal screw by bolt hole.
In the groove of described wire clamp clamp, be provided with graphite linings.
The ramp structure that the afterbody setting of described wire clamp clamp and described reverse taper cavity structure match.
Described action bars lower end is connected with insulated lengthened bar, and described insulated lengthened bar one end is screw-rod structure, and the other end is bolt hole structure.
The hook structure on described action bars top is the groove structure that is opened in action bars tip-end-side.
An operational method for above-mentioned earthing clamp device, comprises the following steps:
1) during according to concrete operation, operating personnel is apart from the far and near situation of power transmission line, and the length of action bars and extension bar, prepare the insulated lengthened bar of varying number, staff arrives the cross-arm place at Awaiting Overhaul transmission line place on shaft tower, restrict earthing clamp device and electrical verification inductor are passed to operation cross-arm place by transmission, cross-arm operating personnel assembly operation bar and extension bar, first adopt end to there is the insulating bar of metal screw, on its metal screw, connect electrical verification inductor, Awaiting Overhaul transmission line is carried out to electrical verification, guarantee circuit no-voltage,
2) after electrical verification completes, take off electrical verification inductor and install the barrier part of earthing clamp device, getting the insulating bar that another end has hook penetrates from the osculum end of barrier part, and pass from big opening end, make the hook on action bars opening up, the stay cord of earthing clamp is placed in hook, pull the action bars with hook, earthing clamp is entered in the reverse taper cavity of barrier part inside, avoid earthing clamp to come off;
3) keep earthing clamp stable by controlling two action bars, and earthing clamp is delivered to transmission pressure place, keep again the action bars that is connected with barrier part to stablize and firmly pull the action bars with hook, earthing clamp is opened, and wire is placed in the groove of earthing clamp, slowly unclamp again the action bars with hook, make earthing clamp steadily closed, being grounded wire clamp is connected with the safety of transmission line, the action bars with hook stretches out forward barrier part, make stay cord depart from hook, action bars and cylindrical shell can be regained in the lump;
4) after upkeep operation completes, removal earthing clamp, action bars adopts as step 2 with cylindrical shell) mounting means be connected, the action bars with hook stretches out forward barrier part, hook the stay cord on earthing clamp by hook, keep the action bars being connected with barrier part stablize and firmly pull back the action bars with hook, earthing clamp can be opened, be grounded the removal of wire clamp.
The present invention is by arranging the stay cord that connects two wire clamp clamps in the rear end of wire clip body, by reverse taper cavity structure being set at an insulating bar top, when use, wire clip body is placed in to cavity structure, the insulating bar that another top has hook structure penetrates reverse taper cavity structure inside from the bottom of barrier part, utilize and hook stay cord, wire clamp can be opened by pulling stay cord, realize the folding of wire clamp by control operation bar, thereby realize, earthing clamp is held on power transmission line reposefully, whole process has been avoided the hard collision of wire clamp and power transmission line, and in line taking folder, after opening wire clamp, take off again wire clamp, avoid conventional method to adopt bracing wire to pull and cause power transmission line to scratch or break the generation of stock market-circumstance condition.As prioritization scheme; by in the groove of clamp, graphite linings being set, to inlay simply, graphite is due to quality softness; can effectively protect the safety of power transmission line; and graphitic conductive is good, can effectively improve the good contact of wire clamp and power transmission line, improve the conductance of earth connection; earthing clamp device operational method of the present invention; simply, conveniently, articulating with detach procedure of whole earthing clamp is steady, controlled, has effectively ensured the safety of transmission line.
Brief description of the drawings
Below in conjunction with accompanying drawing, the present invention is described further:
Structural representation when Fig. 1 is wire clamp closure of the present invention;
Fig. 2 is the structural representation of wire clamp of the present invention while opening;
Fig. 3 is the structural representation of action bars hook of the present invention.
Embodiment
As shown in Figure 1, Figure 2, Figure 3 shows:
Embodiment mono-
A kind of earthing clamp device, comprise wire clip body and operating mechanism, wire clip body one side is welded or is crimped with earth connection 7 by bolt, described wire clip body comprises by rotating shaft 4 and the hinged wire clamp clamp 6 of brute spring, described wire clamp clamp 6 front portions are provided with the groove for clamping power transmission line, in described groove, offer draw-in groove, graphite linings 5 is connected in groove by draw-in groove; Described wire clamp clamp tail end is provided with the stay cord 3 that is connected to 6 of clamps, described operating mechanism comprises two insulating bars 1, wherein action bars 1 top is provided with hook structure 8, another root action bars 1 top has metal screw 11, and be provided with inside and have the barrier part 2 of reverse taper cavity structure by described metal screw 11, described barrier part 2 one sides are provided with bolt hole, and described barrier part 2 is threaded with described metal screw 11 by bolt hole.Described action bars 1 lower end is connected with insulated lengthened bar 10, and described insulated lengthened bar 10 one end are screw-rod structure, and the other end is bolt hole structure, lengthens by bolt arrangement and the bolt hole structure phase downlink connection of mutual coupling.
Embodiment bis-
The difference part of the present embodiment and embodiment mono-is: the ramp structure 9 that the afterbody setting of described wire clamp clamp and described reverse taper cavity structure match.Described action bars 1 is telescopic action bars, comprises interior bar and outer tube, on described outer tube, is provided with hold-down bolt, passes the interior bar of bar realization in outer tube wall compression be connected with the reliable of outer tube by hold-down bolt.The hook structure 8 on described action bars 1 top is for being opened in the groove structure of action bars 1 tip-end-side.
Embodiment tri-
A method that adopts the earthing clamp device of above-described embodiment one or embodiment bis-to carry out operation, comprises the following steps:
1) during according to concrete operation, operating personnel is apart from the far and near situation of power transmission line, and the length of action bars 1 and extension bar 10, prepare the insulated lengthened bar 10 of varying number, staff arrives the cross-arm place at Awaiting Overhaul transmission line place on shaft tower, restrict earthing clamp device and electrical verification inductor are passed to operation cross-arm place by transmission, electrical verification inductor is to install now, cross-arm operating personnel assembly operation bar 1 and extension bar 10, first adopt end to there is the insulating bar 1 of metal screw 11, on its metal screw 11, connect electrical verification inductor, Awaiting Overhaul transmission line is carried out to electrical verification, guarantee circuit no-voltage,
2) after electrical verification completes, take off electrical verification inductor and install the barrier part 2 of earthing clamp device, getting the insulating bar 1 that another end has hook penetrates from the osculum end of barrier part 2, and pass from big opening end, make the hook on action bars 1 opening up, the stay cord of earthing clamp 3 is placed in hook, pull the action bars 1 with hook, earthing clamp is entered in the reverse taper cavity of barrier part inside, avoid earthing clamp to come off;
3) keep earthing clamp stable by controlling two action bars 1, and earthing clamp is delivered to transmission pressure place, the action bars 1 that keeps being again connected with barrier part 2 is stablized and is firmly pulled the action bars 1 with hook, earthing clamp is opened, and wire is placed in the groove of earthing clamp, slowly unclamp again the action bars 1 with hook, make earthing clamp steadily closed, being grounded wire clamp is connected with the safety of transmission line, the action bars 1 with hook stretches out forward barrier part 2, make stay cord 3 depart from hook, action bars 1 and cylindrical shell 2 can be regained in the lump;
4) after upkeep operation completes, removal earthing clamp, action bars 1 and cylindrical shell 2 adopts as step 2) mounting means be connected, the action bars 1 with hook stretches out forward barrier part 2, hook the stay cord 3 on earthing clamp by hook, keep the action bars 1 being connected with barrier part 2 stablize and firmly pull back the action bars 1 with hook, earthing clamp can be opened, be grounded the removal of wire clamp.
Earthing clamp apparatus structure of the present invention is simple, simple for production, and cost is low, and it uses operational method, and simple, convenient, articulating with detach procedure of whole earthing clamp is steady, controlled, has effectively ensured the safety of transmission line.
Claims (6)
1. an earthing clamp device, comprise wire clip body and operating mechanism, described wire clip body comprises by rotating shaft and the hinged wire clamp clamp of brute spring, it is characterized in that: described wire clamp clamp front portion is provided with the groove for clamping power transmission line, described wire clamp clamp tail end is provided with the stay cord being connected between clamp, described operating mechanism comprises two insulating bars, wherein an action bars top is provided with hook structure, another root action bars top has metal screw, and be provided with inside and have the barrier part of reverse taper cavity structure by described metal screw, described barrier part one side is provided with bolt hole, described barrier part is connected with described metal screw by bolt hole.
2. the instrument of charged for replacement suspension insulator as claimed in claim 1, is characterized in that: in the groove of described wire clamp clamp, be provided with graphite linings.
3. the instrument of charged for replacement suspension insulator as claimed in claim 1, is characterized in that: the ramp structure that the afterbody setting of described wire clamp clamp and described reverse taper cavity structure match.
4. the instrument of the charged for replacement suspension insulator as described in claim 1 or 2 or 3, is characterized in that: described action bars lower end is connected with insulated lengthened bar, described insulated lengthened bar one end is screw-rod structure, and the other end is bolt hole structure.
5. the instrument of charged for replacement suspension insulator as claimed in claim 5, is characterized in that: the hook structure on described action bars top is the groove structure that is opened in action bars tip-end-side.
6. an operational method for earthing clamp device described in the above-mentioned any one claim of employing, comprises the following steps:
1) during according to concrete operation, operating personnel is apart from the far and near situation of power transmission line, and the length of action bars and extension bar, prepare the insulated lengthened bar of varying number, staff arrives the cross-arm place at Awaiting Overhaul transmission line place on shaft tower, restrict earthing clamp device and electrical verification inductor are passed to operation cross-arm place by transmission, cross-arm operating personnel assembly operation bar and extension bar, first adopt end to there is the insulating bar of metal screw, on its metal screw, connect electrical verification inductor, Awaiting Overhaul transmission line is carried out to electrical verification, guarantee circuit no-voltage;
2) after electrical verification completes, take off electrical verification inductor and install the barrier part of earthing clamp device, getting the insulating bar that another end has hook penetrates from the osculum end of barrier part, and pass from big opening end, make the hook on action bars opening up, the stay cord of earthing clamp is placed in hook, pull the action bars with hook, earthing clamp is entered in the reverse taper cavity of barrier part inside, avoid earthing clamp to come off;
3) keep earthing clamp stable by controlling two action bars, and earthing clamp is delivered to transmission pressure place, keep again the action bars that is connected with barrier part to stablize and firmly pull the action bars with hook, earthing clamp is opened, and wire is placed in the groove of earthing clamp, slowly unclamp again the action bars with hook, make earthing clamp steadily closed, being grounded wire clamp is connected with the safety of transmission line, the action bars with hook stretches out forward barrier part, make stay cord depart from hook, action bars and cylindrical shell can be regained in the lump;
4) after upkeep operation completes, removal earthing clamp, action bars adopts as step 2 with cylindrical shell) mounting means be connected, the action bars with hook stretches out forward barrier part, hook the stay cord on earthing clamp by hook, keep the action bars being connected with barrier part stablize and firmly pull back the action bars with hook, earthing clamp can be opened, be grounded the removal of wire clamp.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610460407.1A CN106129666B (en) | 2014-07-18 | 2014-07-18 | A kind of earthing clamp device |
| CN201410343063.7A CN104158049B (en) | 2014-07-18 | 2014-07-18 | A kind of earthing clamp device and operational method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410343063.7A CN104158049B (en) | 2014-07-18 | 2014-07-18 | A kind of earthing clamp device and operational method thereof |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610460407.1A Division CN106129666B (en) | 2014-07-18 | 2014-07-18 | A kind of earthing clamp device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104158049A true CN104158049A (en) | 2014-11-19 |
| CN104158049B CN104158049B (en) | 2016-06-29 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610460407.1A Active CN106129666B (en) | 2014-07-18 | 2014-07-18 | A kind of earthing clamp device |
| CN201410343063.7A Active CN104158049B (en) | 2014-07-18 | 2014-07-18 | A kind of earthing clamp device and operational method thereof |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610460407.1A Active CN106129666B (en) | 2014-07-18 | 2014-07-18 | A kind of earthing clamp device |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN106129666B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106019028A (en) * | 2016-08-02 | 2016-10-12 | 国网山东省电力公司枣庄供电公司 | Operating tool special for high-voltage test of electrical equipment |
| CN106450840A (en) * | 2015-08-04 | 2017-02-22 | 迈恩德电子有限公司 | Clamping device and its opening unit and method for actuating the clamping device by the opening unit |
| CN106711640A (en) * | 2017-03-28 | 2017-05-24 | 国网新疆电力公司电力科学研究院 | Fishing ground wire device |
| CN106848616A (en) * | 2016-12-27 | 2017-06-13 | 东莞市圣荣自动化科技有限公司 | The locking device of wire screw fastener in a kind of power equipment |
| CN107946855A (en) * | 2017-09-13 | 2018-04-20 | 东阳市光明电力建设有限公司 | Short circuit testing wire clamp |
| CN108565662A (en) * | 2018-06-26 | 2018-09-21 | 广东广航科技有限公司 | A kind of round electric connector remover-and-replacer |
| CN109494540A (en) * | 2018-12-24 | 2019-03-19 | 蔡春生 | A kind of intersection thread replacing mechanism and its exchange line method |
| CN111478062A (en) * | 2020-04-17 | 2020-07-31 | 广东电网有限责任公司 | Electrodynamic type earth connection |
| CN113948920A (en) * | 2021-10-20 | 2022-01-18 | 国网天津市电力公司 | Grounding wire device |
| CN114094357A (en) * | 2021-09-28 | 2022-02-25 | 金华送变电工程有限公司 | General earthing device for 500kV and above power transmission lines |
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| CN109546370B (en) * | 2018-11-27 | 2020-05-05 | 国网四川省电力公司检修公司 | Transmission line grounding clamp capable of being positioned and convenient to install and disassemble |
| CN111463677A (en) * | 2019-12-24 | 2020-07-28 | 国网山东省电力公司聊城供电公司 | Station-used alternating-current mobile power supply device capable of climbing stairs |
| CN111509425B (en) * | 2020-04-15 | 2021-09-24 | 贵州电网有限责任公司 | Grounding wire clamp of ten-kilovolt distribution line |
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Cited By (14)
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|---|---|---|---|---|
| CN106450840B (en) * | 2015-08-04 | 2020-03-10 | 迈恩德电子有限公司 | Clamping device, open combination unit and method for operating a clamping device |
| CN106450840A (en) * | 2015-08-04 | 2017-02-22 | 迈恩德电子有限公司 | Clamping device and its opening unit and method for actuating the clamping device by the opening unit |
| CN106019028A (en) * | 2016-08-02 | 2016-10-12 | 国网山东省电力公司枣庄供电公司 | Operating tool special for high-voltage test of electrical equipment |
| CN106848616A (en) * | 2016-12-27 | 2017-06-13 | 东莞市圣荣自动化科技有限公司 | The locking device of wire screw fastener in a kind of power equipment |
| CN106711640A (en) * | 2017-03-28 | 2017-05-24 | 国网新疆电力公司电力科学研究院 | Fishing ground wire device |
| CN107946855A (en) * | 2017-09-13 | 2018-04-20 | 东阳市光明电力建设有限公司 | Short circuit testing wire clamp |
| CN107946855B (en) * | 2017-09-13 | 2019-05-10 | 东阳市光明电力建设有限公司 | It is shorted testing wire clamp |
| CN108565662A (en) * | 2018-06-26 | 2018-09-21 | 广东广航科技有限公司 | A kind of round electric connector remover-and-replacer |
| CN109494540A (en) * | 2018-12-24 | 2019-03-19 | 蔡春生 | A kind of intersection thread replacing mechanism and its exchange line method |
| CN111478062A (en) * | 2020-04-17 | 2020-07-31 | 广东电网有限责任公司 | Electrodynamic type earth connection |
| CN114094357A (en) * | 2021-09-28 | 2022-02-25 | 金华送变电工程有限公司 | General earthing device for 500kV and above power transmission lines |
| CN114094357B (en) * | 2021-09-28 | 2023-08-18 | 金华送变电工程有限公司 | Universal grounding device for 500kV and above transmission lines |
| CN113948920A (en) * | 2021-10-20 | 2022-01-18 | 国网天津市电力公司 | Grounding wire device |
| CN113948920B (en) * | 2021-10-20 | 2023-08-08 | 国网天津市电力公司 | Grounding wire device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106129666A (en) | 2016-11-16 |
| CN106129666B (en) | 2018-04-20 |
| CN104158049B (en) | 2016-06-29 |
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Effective date of registration: 20160518 Address after: The Yellow River Road West, Yancheng District of Luohe City, Henan province 462300 Applicant after: Luohe Power Supply Company, State Grid Henan Electric Power Co., Ltd. Applicant after: State Grid Corporation of China Address before: The Yellow River Road West, Yancheng District of Luohe City, Henan province 462300 Applicant before: Luohe Power Supply Company, State Grid Henan Electric Power Co., Ltd. |
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