CN103219671A - Operating method for replacing 220 kV U210B/170 type strain insulator string in live mode - Google Patents
Operating method for replacing 220 kV U210B/170 type strain insulator string in live mode Download PDFInfo
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- CN103219671A CN103219671A CN2013101343269A CN201310134326A CN103219671A CN 103219671 A CN103219671 A CN 103219671A CN 2013101343269 A CN2013101343269 A CN 2013101343269A CN 201310134326 A CN201310134326 A CN 201310134326A CN 103219671 A CN103219671 A CN 103219671A
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- insulator
- strain insulator
- cradle
- equipotential
- insulator string
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Abstract
The invention discloses an operating method for replacing 220kV U210B/170 type strain insulator strings in a live mode. Operation is flexible and the problem that the U210B/170 type strain insulator strings of a 220kV transmission line are difficult to replace is effectively solved. An equipotential person enters an electric filed to conduct operation through a horizontal hard ladder, hoisting and installation of tools and devices are convenient, and at the same time, the difficulties of pin taking and socket picking on a wire side of the strain insulator strings which are oversized in disk diameter, ultra-high in self-weight and ultra-long are solved. The angle of a clamping tool bent plate is designed to be effectively matched with the included angle of yoke plates, and stress is balanced. The strength of an insulator cradle satisfies the stability needed by horizontally lifting 17 pieces of U210B/170 insulator strings which are about 200kg, and therefore the insulator strings are kept in a straight line state all the time on the insulator cradle. Movable butt joint design is adopted in a front device of the insulator cradle and a front clamp of the insulator cradle, therefore the length of the insulator cradle and balance stress points of the insulator cradle can be adjusted flexibly and labor intensity of the equipotential person is effectively lowered.
Description
Technical field
The present invention relates to a kind of replacing 220kV strain insulator U210B/170 type insulator string, particularly a kind of method of charged for replacement 220kV strain insulator U210B/170 type insulator string.
Background technology
In recent years, along with improving constantly of transmission line design standard, U210B/170 type insulator is hanging net operation in the part transmission line, and line conductor is designed to the two divisions of LGJX-630/45, insulator is assembled into two strings U210B/170 * 17 slice, and the cooperation yoke plate is L-4260G.So the unformed jig of charged for replacement of the type insulator string, and conventional live line working method also can't satisfy the requirement of charged for replacement this type insulator string.The method of the strong charged for replacement 220kV strain insulator U210B/170 type insulator string of the on-the-spot applicability of one cover and required specific purpose tool need be provided.
Summary of the invention
The object of the present invention is to provide a kind of method of charged for replacement 220kV strain insulator U210B/170 type insulator string.
A kind of method of charged for replacement 220kV strain insulator U210B/170 type insulator string, (1) respectively strong strain insulator jig front and rear card is installed on lead side yoke plate and cross-arm side yoke plate place, (2) equipotential and earth potential electrician cooperate reinforced twisting resistance screw mandrel of installation and insulation pull-rod, (3) equipotential and earth potential electrician cooperate installation super large disk track insulator bottle supporting frame, (4) the earth potential electrician tightens up reinforced twisting resistance screw mandrel, make the loose and level of U210B/170 type insulator string on insulator bottle supporting frame, (5) equipotential and earth potential electrician cooperate and are connected gold utensil before and after winning strain insulator string respectively.
This operational method is at present 220kV strain insulator U210B/170 type insulator string charged for replacement, and is simple and safe.Adopt this operational method, reduce the labour intensity of operating personnel on the bar effectively, improved whole operating efficiency, solved the difficult problem that this type of insulator string can't charged for replacement, have stronger practicality and popularizing application prospect widely.
Described strong strain insulator jig adopts high strength LC4 aluminum alloy materials and adopts overall construction design, can satisfy the requirement of strength of jig when stressed, the front and back jig is installed in insulator string both sides yoke plate respectively, and structure and yoke plate closely mate, stress equalization, make the load screw mandrel when tightening up operation, keep stress point can be on the same horizontal line, and loose by the stressed insulator string that makes of screw mandrel.
Described reinforced twisting resistance screw mandrel adopts the design of " three grades of interlocks ", thread extruding, anti-thread are sheared, the bending of screw thread position and leading screw reverse, stretch, and equal strength all satisfies the design load requirement, province's force rate is 1:425, flexible operation, tighten up freely, reached the purpose of tightening up the loose insulator string of LGJX-630/45 double bundle conductor.
Described super large disk track bottle supporting frame adopts the design of allotype insulation pipe, can horizontal bearing 17 about 200kg of U210B/170 insulator from weight, bottle supporting frame mid portion flexibility is little, makes insulator string remain linear state on the bottle supporting frame, and insulator string is created fabulous condition in order to unsnap; Device adopts packaged type to dock design with the preceding card of strain insulator jig before the bottle supporting frame, and this device can be adjusted the length and the producing balanced forces point of bottle supporting frame flexibly, can effectively reduce equal potential working personnel's labour intensity, makes things convenient for the write off of insulator and winning of bowl head again.
Described insulation pull-rod adopts the foam-filled pipe of external diameter Φ 32 ㎜, internal diameter Φ 16 ㎜, thick 8 ㎜, meets the requirement of GB13398-2008, allows loading to reach 86.7kN.With the supporting metal termination of insulation pull-rod, adopt two auricles of external diameter Φ 48 ㎜, material adopts the 7A04 superduralumin, and its tensile strength reaches 95kN.
In sum, the invention has the advantages that:
Operational method of the present invention is safe and reliable, and flexible operation efficiently solves the difficult problem that 220kV transmission line U210B/170 type strain insulator string can't charged for replacement.Equipotential personnel enter the electric field operation by the hard ladder of level, are convenient to lifting, the installation of Work tool, have solved the difficult problem that super large disk track, super large deadweight, overlength strain insulator string lead side-draw pin and bowl head are won simultaneously.Jig bent plate angle design and yoke plate angle effectively mate, stress equalization; Bottle supporting frame intensity satisfies the stability that hold up the level of 17 about 200kg of U210B/170 insulator, makes insulator string remain linear state on the bottle supporting frame; Device adopts packaged type to dock design with preceding card before the bottle supporting frame, can adjust the length and the producing balanced forces point of bottle supporting frame flexibly, effectively reduces equal potential working personnel's labour intensity.
Description of drawings
Fig. 1 is a charged for replacement 220kV strain insulator U210B/170 type insulator instrument overall schematic.
Fig. 2 is a charged for replacement 220kV strain insulator U210B/170 type insulator strong strain insulator jig structure chart.
Fig. 3 is the reinforced twisting resistance screw structure of charged for replacement 220kV strain insulator U210B/170 type insulator figure.
Fig. 4 is a charged for replacement 220kV strain insulator U210B/170 type insulator pull-rod structure chart.
Fig. 5 is charged for replacement 220kV strain insulator U210B/170 type insulator bottle supporting shelf structure figure.
Fig. 6 is a charged for replacement 220kV strain insulator U210B/170 type insulator string The field schematic diagram.
Label declaration: block behind the card 2 strong strain insulator jigs before the 1 strong strain insulator jig
3 reinforced twisting resistance screw mandrel 4 insulator pull-rods 5 insulator bottle supporting framves 6 insulator strings
7 insulator duplex plates
Embodiment
Below in conjunction with example the present invention is described in more detail.
A kind of method of charged for replacement 220kV strain insulator U210B/170 type insulator string, (1) respectively card 1 before the strong strain insulator jig and back card 2 are installed on the yoke plate of both sides, (2) equipotential and earth potential electrician cooperate reinforced twisting resistance screw mandrel of installation and insulation pull-rod 4, (3) equipotential and earth potential electrician cooperate installation super large disk track insulator bottle supporting frame 5, (4) the earth potential electrician tightens up reinforced twisting resistance screw mandrel 3, make the loose and level of U210B/170 type insulator string on insulator bottle supporting frame, (5) equipotential and earth potential electrician cooperate and are connected gold utensil before and after winning strain insulator string respectively.
Described specific purpose tool comprises strong strain insulator jig (Fig. 2), reinforced twisting resistance screw mandrel (Fig. 3), super large disk track insulator bottle supporting frame (Fig. 5), insulation pull-rod (Fig. 4).
Described strong strain insulator jig (Fig. 2) is installed on yoke plate 7 places, both sides, strain insulator string 6 front and back, described reinforced twisting resistance screw mandrel (Fig. 3) is connected with insulation pull-rod (Fig. 4) and is installed on strong strain insulator jig (Fig. 2) front and rear card, and described super large disk track insulator bottle supporting frame (Fig. 5) utilizes the core through screw rod installation and is fixed on strong strain insulator jig (Fig. 2) front and rear card.
It is same as the prior art that present embodiment is not stated part.
Claims (1)
1. the method for a charged for replacement 220kV strain insulator U210B/170 type insulator string, (1) respectively strong strain insulator jig front and rear card is installed on lead side yoke plate and cross-arm side yoke plate place, (2) equipotential and earth potential electrician cooperate reinforced twisting resistance screw mandrel of installation and insulation pull-rod, (3) equipotential and earth potential electrician cooperate installation super large disk track insulator bottle supporting frame, (4) the earth potential electrician tightens up strong type twisting resistance screw mandrel, make the loose and level of U210B/170 type insulator string on insulator bottle supporting frame, (5) equipotential and earth potential electrician cooperate and are connected gold utensil before and after winning strain insulator string respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101343269A CN103219671A (en) | 2013-04-18 | 2013-04-18 | Operating method for replacing 220 kV U210B/170 type strain insulator string in live mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101343269A CN103219671A (en) | 2013-04-18 | 2013-04-18 | Operating method for replacing 220 kV U210B/170 type strain insulator string in live mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103219671A true CN103219671A (en) | 2013-07-24 |
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ID=48817258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101343269A Pending CN103219671A (en) | 2013-04-18 | 2013-04-18 | Operating method for replacing 220 kV U210B/170 type strain insulator string in live mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103219671A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746317A (en) * | 2014-01-02 | 2014-04-23 | 国家电网公司 | General tool for replacing insulator chains of straight-line angle tower |
| CN107732784A (en) * | 2017-11-28 | 2018-02-23 | 云南电网有限责任公司昆明供电局 | Live replacement of 220 kV tension-resistant double insulator string LF yoke plate special mould clamps |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000059936A (en) * | 1998-08-10 | 2000-02-25 | Chubu Electric Power Co Inc | Insulator replacing device for two-string strain- insulator apparatus |
| CN2708547Y (en) * | 2004-06-17 | 2005-07-06 | 上海电力带电作业技术开发有限公司 | Energizing thread-tightening lead screw |
| CN101752806A (en) * | 2009-12-15 | 2010-06-23 | 云南电网公司大理供电局 | Connecting plate for replacing 220kV double bundle conductor strain insulator with centricity and method thereof |
| CN202004372U (en) * | 2011-01-25 | 2011-10-05 | 福建省电力有限公司三明电业局 | Tool for live-line replacing large disc diameter and deadweight dead end insulator string |
| CN102623927A (en) * | 2012-03-31 | 2012-08-01 | 湖南省电力公司株洲电业局 | Tool and method for charged replacement of multi-circuit double-split conductor insulators of 200kV line |
| CN202651692U (en) * | 2012-06-11 | 2013-01-02 | 江苏省电力公司镇江供电公司 | Large-knife clamp tool for changing double-strain string insulator |
-
2013
- 2013-04-18 CN CN2013101343269A patent/CN103219671A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000059936A (en) * | 1998-08-10 | 2000-02-25 | Chubu Electric Power Co Inc | Insulator replacing device for two-string strain- insulator apparatus |
| CN2708547Y (en) * | 2004-06-17 | 2005-07-06 | 上海电力带电作业技术开发有限公司 | Energizing thread-tightening lead screw |
| CN101752806A (en) * | 2009-12-15 | 2010-06-23 | 云南电网公司大理供电局 | Connecting plate for replacing 220kV double bundle conductor strain insulator with centricity and method thereof |
| CN202004372U (en) * | 2011-01-25 | 2011-10-05 | 福建省电力有限公司三明电业局 | Tool for live-line replacing large disc diameter and deadweight dead end insulator string |
| CN102623927A (en) * | 2012-03-31 | 2012-08-01 | 湖南省电力公司株洲电业局 | Tool and method for charged replacement of multi-circuit double-split conductor insulators of 200kV line |
| CN202651692U (en) * | 2012-06-11 | 2013-01-02 | 江苏省电力公司镇江供电公司 | Large-knife clamp tool for changing double-strain string insulator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746317A (en) * | 2014-01-02 | 2014-04-23 | 国家电网公司 | General tool for replacing insulator chains of straight-line angle tower |
| CN103746317B (en) * | 2014-01-02 | 2016-03-02 | 国家电网公司 | A kind of general utility tool changing straight-line angle tower insulator string |
| CN107732784A (en) * | 2017-11-28 | 2018-02-23 | 云南电网有限责任公司昆明供电局 | Live replacement of 220 kV tension-resistant double insulator string LF yoke plate special mould clamps |
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Application publication date: 20130724 |