CN102231493B - Method for replacing ground potentials of tension insulator string in vertical dual-string arrangement - Google Patents
Method for replacing ground potentials of tension insulator string in vertical dual-string arrangement Download PDFInfo
- Publication number
- CN102231493B CN102231493B CN 201110190309 CN201110190309A CN102231493B CN 102231493 B CN102231493 B CN 102231493B CN 201110190309 CN201110190309 CN 201110190309 CN 201110190309 A CN201110190309 A CN 201110190309A CN 102231493 B CN102231493 B CN 102231493B
- Authority
- CN
- China
- Prior art keywords
- card
- rod
- insulation
- pull
- hole
- 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
- 239000012212 insulator Substances 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000009413 insulation Methods 0.000 claims abstract description 82
- 238000009434 installation Methods 0.000 claims abstract description 12
- 239000012211 strain insulator Substances 0.000 claims description 17
- 230000000903 blocking effect Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 3
- 239000004020 conductor Substances 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
Abstract
The invention discloses a method for replacing ground potentials of a tension insulator string in vertical dual-string arrangement, and the method comprises the following steps: setting a locking device on a front clamp in an unlocking state; installing the front clamp on an assigned position independently; using an operating arm to clamp insulated pulling plates or pulling rods into the front clamp by an operator and then adjusting the insulated pulling plates or pulling rods to the required length by the operator; locking the locking device on the front clamp to finish the installation of the left and right insulated pulling plates or pulling rods; installing a back clamp on a triangle connecting plate at a crosspiece side; connecting lead screws of the back clamp with the insulated pulling plates or pulling rods and then fastening the lead screws at the left and right sides, thus conductor insulators are not strained; then operating the insulation operating arm to stop the operation; and finally taking out the insulators so as to install new insulators at the assigned positions, and then loosening a fixture. The whole fixture is disassembled to be partially installed on electrically-operated double bundle conductors in a vertical arrangement mode, thus solving the problem that the ground potential hot line operation can not be realized by using the traditional construction technologies.
Description
Technical field
The present invention relates to the two string of a kind of insulator chain ground potential replacing method, particularly a kind of strain insulator vertical arrangement insulator chain ground potential replacing method.
Background technology
The most critical factor of earth potential live replacing operation is the overall weight of jig, fastening type earth potential live operation jig all is after the ground overall package is finished usually, again by manually jig lifting being snapped onto cross-arm and conductor wire end is carried out operation, the problem that occur this moment is exactly, charged jig weight after the assembling is not light, and (generally be preceding card+arm-tie+leading screw+back card, also have a bottle supporting frame at last) electric pressure is more high, the jig of assembling is also just more heavy, and difficulty of construction is more big.The assembling weight of existing double bundle conductor jig is greatly about about 15-25kg, that is to say that No. 1 electrician must bear nearly hundred kilograms strength and could satisfy the requirement of the charged jig of assembling indirectly, change operation so existing technology is difficult to finish the earth potentials of the two string of strain insulator vertical arrangement insulator string.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art part, and provide a kind of jig erection weight that reduces, simplify operation procedure, alleviate operating personnel's labour intensity, reduce live line working danger, the two string of the strain insulator of increasing work efficiency vertical arrangement insulator chain ground potential replacing method.
The two string of a kind of strain insulator vertical arrangement insulator chain ground potential replacing method is characterized in that:
Include the preceding card that to realize remote installation indirectly and locking, the insulation arm-tie or the insulation pull-rod that match with the preceding card that has locking device and use, fastening screw mandrel, back card;
Earlier the locking device on the preceding card is arranged at unlocking condition, then preceding card independently is installed in assigned address, snap in preceding card by the operator by will insulate arm-tie or pull-rod of action bars, and operation insulation arm-tie or pull-rod are adjusted to the length that needs, then again the locking device on the preceding card is locked, installation with insulation arm-tie or pull-rod about finishing, again will back card be installed on crosspiece side triangle wins in succession, with the screw mandrel of back card be connected with insulation arm-tie or pull-rod finish after fastening left and right sides screw mandrel of while, making it wire insulation loses stressed, operate insulating bar then and carry out write off work, take out insulator at last and more renew insulator and unclamp jig to assigned address and finish replacing.
Adopt and decompose the method for installing, jig is detachable, preceding card can pass through double bundle conductor flexibly, the function of reliable locking device is arranged, reduced the weight when jig is installed, this method both can be simplified operation procedure, alleviated operating personnel's labour intensity, reduced the danger of live line working, increase work efficiency, improved power supply reliability and maintenance benefit again greatly.
The described preceding card that has locking device is wing card, the both ends of wing card two flanks are square open slot, the opening direction of described open slot parallels with the plane extension direction of wing card two flanks, offer the positioning through hole of mutual perforation at two trough rims up and down of wing card two flank open slots, on wing card, also be provided with a lockweight, this lockweight is movably connected on the positioning through hole place on wing card two flanks, before before the insulation arm-tie snaps in this, blocking two flank open slots, described lockweight utilizes keeper to be located trough rim place on two flank open slots, the insulation arm-tie is provided with the through hole that can insert lockweight, when before the insulation arm-tie inserts, blocking two flank open slots, push keeper aside, then lockweight freely falls under the effect of deadweight in the insulation arm-tie location hole and finishes locating locking.
Be stuck in before this structure when installing, entered along the open slot on preceding card two flanks by the action bars arm-tie that will insulate by electrician, operation insulation arm-tie is adjusted to the length that needs, No. two the electrician utilizes insulating bar to make lockweight freely fall the keeper on preceding card two flanks, adjusts insulation arm-tie to lockweight and finishes the pin block action.The installation of insulation arm-tie about finishing with the method.Back card and screw mandrel then are installed again.
The mode that lockweight is movably connected on wing card two flanks is: along lockweight axially offer one section logical heart slotted hole, in logical heart slotted hole, be provided with the latch that lockweight can be stuck on the wing card.
During use, utilize latch to pass through-hole groove on the lockweight, then lockweight is filled in the through hole of trough rim on wing card two flanks, and utilized latch to be stuck on the wing card.
Described flexible connection can also be that flexible things such as direct sharp rope hang on lockweight on wing card two flanks.
On blocking before described keeper is movably connected on.
The flexible connection of described keeper blocks before adopting flexible things such as rope that keeper is hung on, and maybe will be articulated on the preceding card.
Described keeper or be spring leaf, or be common blocks etc.
The present invention also is:
The described preceding card that has locking device is wing card, the two ends of card two flanks are provided with the through hole that matches with the pull-rod that insulate before wing, the groove that the hole wall of through hole is provided with is axially extended along through hole, can pass for the alignment pin that is fixed in the insulation pull-rod.
The preceding card of this structure, in use, owing to have self-locking gear, therefore can realize installing with the decomposition of back card, insulation arm-tie, when mounted, preceding card can independently be installed in assigned address or pass through the alignment pin that is installed in down behind the Square wire by card before the insulating bar operation and preceding card is stuck in lead regulates and finish locking on winning in succession.Its concrete operations are for inserting the preceding through hole that block two flanks on by action bars with the insulation pull-rod that its end has alignment pin by an electrician, (the insulation pull-rod that has an alignment pin for the end at the insulation pull-rod be provided with one with the perpendicular alignment pin of insulation pull-rod rod body), the pull-rod that will insulate rotates an angle, make stagger groove on the hole wall of alignment pin on the insulation pull-rod, can realize the fixing of pull-rod and preceding card that insulate this moment, the back card then is installed again.Therefore adopt preceding card of the present invention to overcome the various shortcomings that need the employing integral installation to bring, greatly reduce labor intensity of operating personnel.
Before wing card two flanks match with the insulation pull-rod exit end face of through hole of use be provided with through hole in the groove open slot that alignment pin on Gong the insulation pull-rod of angle snaps in that staggers.
At match with the insulation pull-rod exit end face of the through hole that uses of two flanks open slot is set, the alignment pin of insulation pull-rod on pull-rod after angle of rotation can snap in wherein like this, thereby the pull-rod that prevents from insulating in use rotates and plays good positioning action.
Match with the insulation pull-rod Lower Half of arrival end of through hole of use of card two flanks is provided with the gathering sill of arc before wing.
Bottom at arrival end arranges gathering sill, the pull-rod insertion from afar of can conveniently insulating.
Described gathering sill stretches out for the end face by the through hole lower half.
Match with the insulation pull-rod port of export of through hole of use of card two flanks also is provided with the pull-rod that prevents from insulating and passes too much stopping means before wing.
Described stopping means is the catch on the card before being arranged at.
Before the described shape card two flanks match with the insulation pull-rod on the through-hole wall that uses groove or be one, or be the flat recess on the distribution one diameter two ends.
In sum, the present invention's following advantage compared to existing technology:
The present invention is broken the whole up into parts a whole set of jig breakdown on the vertical arrangement double bundle conductor that is contained in charging operation, solve the problem that construction technology in the past can't the earth potential live operation, just the jig of breakdown design can connect installation in the ranks in that lead is enterprising with more than 30 kilogram the jig substep of weighing when the indirect live line working of earth potential, its purpose is exactly the progressively raising that solves along with electric pressure and lead load, original thinking is design just can't to be installed on the lead the thorough head it off of this decomposition method to more and more heavier jig with construction technology operating type is basic; Preceding card can pass through the stressed position that double bundle conductor arrives appointment flexibly; Designed safe and reliable locking device, so that utilize insulating bar to assemble during indirect operating, stressed reliable after the locking.A whole set of breakdown charged for replacement instrument has the operating flexibility convenience, locking is reliable, applicable to the charged for replacement insulator operation of compact line, the vertical double bundle conductor framework of wiring on the same tower multiloop shaft tower.
Description of drawings
Fig. 1 is the preceding card structure schematic diagram of inventive embodiments 1.
Fig. 2 is the structure enlarged drawing of the lockweight of Fig. 1.
Fig. 3 is the vertical view of Fig. 1.
Fig. 4 is the preceding card structure schematic diagram of the embodiment of the invention 2.
Fig. 5 is the vertical view of Fig. 4.
Fig. 6 is the structural representation that has the insulation pull-rod of alignment pin.
Gathering sill 44 stopping means 5 alignment pins of open slot 43 arcs on the groove 42 through hole ports of export that can pass for the alignment pin on the pull-rod that insulate in logical heart slotted hole 22 latches 3 keepers 4 wing card two flanks and through hole 41 through holes that the insulation pull-rod matches on positioning through hole 2 lockweights 21 lockweights before label declaration 1 is wing on open slot 11 open slots at card both ends.
Embodiment
Be described in more detail below in conjunction with the present invention of embodiment.
Embodiment 1
The two string of a kind of strain insulator vertical arrangement insulator chain ground potential replacing method, it includes the preceding card that can realize remote installation indirectly and locking, the insulation arm-tie that matches and use with the preceding card that has locking device, fastening screw mandrel, back card;
Earlier the locking device on the preceding card is arranged at unlocking condition, then preceding card independently is installed in assigned address, snap in preceding card by the operator by the action bars arm-tie that will insulate, snap in preceding card by the operator by the action bars arm-tie that will insulate, and operation insulation arm-tie is adjusted to the length that needs, then again the locking device on the preceding card is locked, installation with insulation arm-tie about finishing, again will back card be installed on crosspiece side triangle wins in succession, with the screw mandrel of back card be connected with the insulation arm-tie finish after fastening left and right sides screw mandrel of while, making it wire insulation loses stressed, operate insulating bar then and carry out write off work, take out insulator at last and more renew insulator and unclamp jig to assigned address and finish replacing.
The described preceding card that has locking device is wing card (as Fig. 1-3), the both ends of wing card two flanks are square open slot 1, the opening direction of described open slot parallels with the plane extension direction of wing card two flanks, offer the positioning through hole 11 of mutual perforation at two trough rims up and down of wing card two flank open slots, on wing card, also be provided with a lockweight 2, this lockweight is movably connected on the positioning through hole place on wing card two flanks, before before the insulation arm-tie snaps in this, blocking two flank open slots, described lockweight utilizes keeper to be located trough rim place on two flank open slots, the insulation arm-tie is provided with the through hole that can insert lockweight, when before the insulation arm-tie inserts, blocking two flank open slots, push keeper aside, then lockweight freely falls under the effect of conducting oneself with dignity, and makes lockweight finish and latches to move to pin by the position of adjusting insulation board and block before the insulation arm-tie reaches.Be stuck in before this structure when installing, entered along the open slot on preceding card two flanks by the action bars arm-tie that will insulate by electrician, operation insulation arm-tie is adjusted to the length that needs, No. two electricians utilize insulating bar that the keeper on preceding card two flanks is opened and make lockweight freely fall, adjust insulation arm-tie to lockweight and finish the action that latches.The installation of insulation arm-tie about finishing with the method.The back card then is installed again.The mode that lockweight is movably connected on wing card two flanks is: along lockweight axially offer one section logical heart slotted hole 21, in logical heart slotted hole, be provided with the latch 22 that lockweight can be stuck on the wing card.Described keeper 3 is spring leaf, blocks before it is articulated in.
It is same as the prior art that present embodiment is not stated part.
The two string of a kind of strain insulator vertical arrangement insulator chain ground potential replacing method, it includes the preceding card that can realize remote installation indirectly and locking, the insulation arm-tie that matches and use with the preceding card that has locking device, fastening screw mandrel, back card;
Earlier the locking device on the preceding card is arranged at unlocking condition, then preceding card independently is installed in assigned address, snap in preceding card by the operator by the action bars pull-rod that will insulate, snap in preceding card by the operator by the action bars pull-rod that will insulate, and operation insulation pull-rod is adjusted to the length that needs, then again the locking device on the preceding card is locked, installation with insulation arm-tie about finishing, again will back card be installed on crosspiece side triangle wins in succession, with the screw mandrel of back card be connected with the insulation pull-rod finish after fastening left and right sides screw mandrel of while, making it wire insulation loses stressed, operate insulating bar then and carry out write off work, take out insulator at last and more renew insulator and unclamp jig to assigned address and finish replacing.
The described preceding card that has locking device is wing card (as Fig. 4-6), the two ends of card two flanks are provided with the through hole 4 that matches with the pull-rod that insulate before wing, the groove 41 that the hole wall of through hole is provided with is axially extended along through hole, can pass for the alignment pin that is fixed in insulation pull-rod end.The preceding card of this structure, in use, owing to have self-locking gear, therefore can realize installing with the decomposition of back card, insulation arm-tie, when mounted, preceding card can independently be installed in assigned address or pass through the lockweight that is installed in down behind the Square wire by card before the insulating bar operation and preceding card is stuck in lead regulates and finish locking on winning in succession.Its concrete operations are for inserting the preceding through hole that block two flanks on by action bars with the insulation pull-rod that its end has lockweight by an electrician, (the insulation pull-rod that has an alignment pin for the end at the insulation pull-rod be provided with one with the perpendicular alignment pin of insulation pull-rod rod body), the pull-rod that will insulate rotates an angle, make stagger groove on the hole wall of alignment pin on the insulation pull-rod, can realize the fixing of pull-rod and preceding card that insulate this moment, the back card then is installed again.Before wing card two flanks match with the insulation pull-rod exit end face of through hole of use be provided with through hole in the groove open slot 42 that alignment pin on Gong the insulation pull-rod of angle snaps in that staggers.The lockweight of insulation pull-rod on pull-rod after angle of rotation can snap in wherein like this.Match with the insulation pull-rod Lower Half of arrival end of through hole of use of card two flanks is provided with the gathering sill 43 of arc before wing.Be used for guiding insulation pull-rod.Described gathering sill stretches out for the end face by the through hole lower half.Match with the insulation pull-rod port of export of through hole of use of card two flanks also is provided with the pull-rod that prevents from insulating and passes too much stopping means 44 before wing.Stopping means is the catch on the card before being arranged at, the card two flanks groove of the groove in-line on the through-hole wall of use that matches with the insulation pull-rod before the described shape.
It is same as the prior art that present embodiment is not stated part.
Claims (8)
1. the two string of strain insulator vertical arrangement insulator chain ground potential methods of replacinging is characterized in that: the jigs that the two string of described strain insulator vertical arrangement insulator chain ground potential replacing method adopts include can realize remote install indirectly and the preceding card of locking, the insulation arm-tie that uses that matches with preceding card, fastening screw mandrel and after block; Card is wing card before described, the both ends of described wing card two flanks are square open slot, the opening direction of described open slot parallels with the plane extension direction of wing card two flanks, offer the positioning through hole of mutual perforation at two trough rims up and down of wing card two flank open slots, on wing card, also be provided with a lockweight, this lockweight is movably connected on the positioning through hole place on wing card two flanks, before before the insulation arm-tie snaps in this, blocking two flank open slots, described lockweight utilizes keeper to be located trough rim place on two flank open slots, the insulation arm-tie is provided with the through hole that can insert lockweight, when before the insulation arm-tie inserts, blocking two flank open slots, push keeper aside, then lockweight freely falls under the effect of deadweight, by the position of adjusting the insulation arm-tie make lockweight finish to latch action pin the insulation arm-tie and before card, be stuck in before this structure when installing, entered along the open slot on preceding card two flanks by the action bars arm-tie that will insulate by electrician, operation insulation arm-tie is adjusted to the length that needs, No. two electricians utilize insulating bar that the keeper on preceding card two flanks is opened to make lockweight freely fall, adjust insulation arm-tie to lockweight and finish the action that latches, the installation of insulation arm-tie about finishing with the method, again will back card be installed on crosspiece side triangle wins in succession, with the screw mandrel of back card be connected with the insulation arm-tie finish after fastening left and right sides screw mandrel of while, making it wire insulation loses stressed, operate insulating bar then and carry out write off work, take out insulator at last and more renew insulator and unclamp jig to assigned address and finish replacing.
2. the two string of strain insulator according to claim 1 vertical arrangement insulator chain ground potential replacing methods, it is characterized in that: the mode that lockweight is movably connected on wing card two flanks is: along lockweight axially offer one section logical heart slotted hole, in logical heart slotted hole, be provided with the latch that lockweight can be stuck on the wing card.
3. the two string of strain insulator according to claim 2 vertical arrangement insulator chain ground potential replacing method is characterized in that: block before described keeper is articulated in.
4. the two string of strain insulator according to claim 3 vertical arrangement insulator chain ground potential replacing methods, it is characterized in that: described keeper is spring leaf.
5. the two string of strain insulator vertical arrangement insulator chain ground potential methods of replacinging is characterized in that: the jigs that the two string of described strain insulator vertical arrangement insulator chain ground potential replacing method adopts include can realize remote install indirectly and the preceding card of locking, the insulation pull-rod that uses that matches with preceding card, fastening screw mandrel and after block; The described preceding card that has locking device is wing card, the two ends of card two flanks are provided with the through hole that matches with the pull-rod that insulate before wing, end at the insulation pull-rod is provided with alignment pin, the hole wall of through hole is provided with along through hole axially extended, the groove that can pass for the alignment pin that is fixed in insulation pull-rod end, when operation, by electrician by action bars will insulate pull-rod insert before through hole on card two flanks, alignment pin is set to alignment pin perpendicular to insulation pull-rod rod body insulation pull-rod end, the pull-rod that will insulate rotates an angle, make stagger groove on the hole wall of alignment pin on the insulation pull-rod, can realize the fixing of pull-rod and preceding card that insulate this moment, then again will back card be installed on crosspiece side triangle wins in succession, with the screw mandrel of back card be connected with the insulation pull-rod finish after fastening left and right sides screw mandrel of while, making it wire insulation loses stressed, operate insulating bar then and carry out write off work, take out insulator at last and more renew insulator and unclamp jig to assigned address and finish replacing.
6. the two string of strain insulator according to claim 5 vertical arrangement insulator chain ground potential methods of replacinging is characterized in that: before wing card two flanks match with the pull-rod that insulate the exit end face of through hole of use be provided with through hole in the groove open slot that alignment pin on Gong the insulation pull-rod of angle snaps in that staggers.
7. the two string of strain insulator according to claim 6 vertical arrangement insulator chain ground potential methods of replacinging is characterized in that: match with the pull-rod that the insulate Lower Half of arrival end of through hole of use of card two flanks is provided with the gathering sill of arc wing before.
8. the two string of strain insulator according to claim 7 vertical arrangement insulator chain ground potential methods of replacinging is characterized in that: match with the pull-rod that the insulate port of export of through hole of use of card two flanks also is provided with the pull-rod that prevents from insulating and passes too much stopping means wing before.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110190309 CN102231493B (en) | 2011-07-07 | 2011-07-07 | Method for replacing ground potentials of tension insulator string in vertical dual-string arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110190309 CN102231493B (en) | 2011-07-07 | 2011-07-07 | Method for replacing ground potentials of tension insulator string in vertical dual-string arrangement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102231493A CN102231493A (en) | 2011-11-02 |
| CN102231493B true CN102231493B (en) | 2013-09-18 |
Family
ID=44844038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110190309 Active CN102231493B (en) | 2011-07-07 | 2011-07-07 | Method for replacing ground potentials of tension insulator string in vertical dual-string arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102231493B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474907A (en) * | 2013-09-25 | 2013-12-25 | 国网河南省电力公司平顶山供电公司 | Hot-line work method with activity space of operating personnel being limited in forced mode |
| CN105429052A (en) * | 2015-12-22 | 2016-03-23 | 国网福建省电力有限公司泉州供电公司 | Replacing clamp, replacing apparatus and method for tension insulator |
| CN105958383A (en) * | 2016-07-11 | 2016-09-21 | 云南电网有限责任公司昆明供电局 | Clamp for live replacement of 35-110 kV compression type clip single strain insulator string |
| CN107968343A (en) * | 2017-11-28 | 2018-04-27 | 大唐东北电力试验研究所有限公司 | Can charged for replacement 10kVPT cartridge fuses insulating bar |
| CN107979023B (en) * | 2017-12-05 | 2023-08-29 | 国家电网公司 | Clamp holder |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5377402A (en) * | 1993-10-27 | 1995-01-03 | Semple, Jr.; Alan R. | Electrical insulator change-out tool |
| CN201515166U (en) * | 2009-07-26 | 2010-06-23 | 江西赣州供电公司 | Adjustable expansion resistant airfoil card |
| CN101931181A (en) * | 2010-03-26 | 2010-12-29 | 福建省电力有限公司厦门电业局 | Strain tower double-hanging-point single-link-plate insulator chain ground potential live exchange device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080024840A (en) * | 2006-09-15 | 2008-03-19 | 한국전기공사협회 | Live-line changing method of the damaged insulator in suspension insulator strings for 765kv double circuit transmission lines |
-
2011
- 2011-07-07 CN CN 201110190309 patent/CN102231493B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5377402A (en) * | 1993-10-27 | 1995-01-03 | Semple, Jr.; Alan R. | Electrical insulator change-out tool |
| CN201515166U (en) * | 2009-07-26 | 2010-06-23 | 江西赣州供电公司 | Adjustable expansion resistant airfoil card |
| CN101931181A (en) * | 2010-03-26 | 2010-12-29 | 福建省电力有限公司厦门电业局 | Strain tower double-hanging-point single-link-plate insulator chain ground potential live exchange device |
Non-Patent Citations (2)
| Title |
|---|
| 带电更换线路耐张绝缘子串的保护工具研制;许楠;《云南电力技术》;20110430;第39卷(第2期);全文 * |
| 许楠.带电更换线路耐张绝缘子串的保护工具研制.《云南电力技术》.2011,第39卷(第2期), |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102231493A (en) | 2011-11-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102231493B (en) | Method for replacing ground potentials of tension insulator string in vertical dual-string arrangement | |
| CN102231495B (en) | Disassembled fixture for replacing ground potentials of tension insulator string in vertical dual-string arrangement | |
| CN102270817A (en) | Tool for changing tension insulator in live line | |
| CN202127208U (en) | Disassemble type tension double-string vertically arranged insulator chain ground potential change fixture | |
| CN215343439U (en) | Be used for reservoir integration management control cabinet | |
| CN202127206U (en) | Front clamp with locking device for detachable replaceable ground-potential clamping apparatus | |
| CN102361257B (en) | Front clamp of decomposition type ground potential replacement clamp | |
| CN215212657U (en) | Multi-loop cross arm device of extra-high voltage power transmission tower | |
| CN105261992A (en) | Wire lifting device | |
| CN102231494B (en) | Front card of discrete-type earth potential replacement fixture with locking device | |
| CN106033872A (en) | Tool for equipotential replacement of single-joint double-flexible bus tension insulator | |
| CN211182927U (en) | High-low voltage switch cabinet convenient to installation | |
| CN110137867B (en) | Method for live wiring in low-voltage cable branch box | |
| CN209494293U (en) | A kind of anti-bird cross-arm | |
| CN202127207U (en) | Front clamp of split type electric potential replacing clamp device | |
| CN218715614U (en) | Line single pole is with increasing roof-rack suitable for 35kV and below | |
| CN112165059B (en) | Power tower cable terminal mounting rack | |
| CN219247293U (en) | Drawing type low-voltage power distribution cabinet | |
| CN213151343U (en) | Low-voltage distribution cabinet convenient to installation | |
| CN109496103A (en) | It is a kind of for operating the structure adjustable installing substrate of cabinet | |
| CN209544865U (en) | A kind of bottom plate of switch cabinet mechanism and and switchgear | |
| CN219067391U (en) | Junction device for power engineering | |
| CN217281794U (en) | Block terminal convenient to overhaul | |
| CN212380590U (en) | Ground rod for line detection | |
| CN217984081U (en) | Switch board with safety protection structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: ZHANGZHOU POWER BRANCH OF FUJIAN ELECTRIC POWER CO., LTD. Effective date: 20121206 Owner name: FUJIAN ELECTRIC POWER CO., LTD. ZHANGZHOU POWER BR Effective date: 20121206 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 363000 ZHANGZHOU, FUJIAN PROVINCE TO: 100031 XICHENG, BEIJING |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20121206 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant after: State Grid Corporation of China Applicant after: Fujian Electric Power Co., Ltd. Applicant after: Zhangzhou Electric Power-Supply Bureau, Fujian Electric Power Co., Ltd. Address before: Victory road 363000 in Fujian province Zhangzhou City Xiangcheng District No. 13 Applicant before: Zhangzhou Electric Power-Supply Bureau, Fujian Electric Power Co., Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |