CN106786146B - Tri- identical tower window list back transmission line compact linear towers of 500kV enter equipotential operational method - Google Patents
Tri- identical tower window list back transmission line compact linear towers of 500kV enter equipotential operational method Download PDFInfo
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- CN106786146B CN106786146B CN201611176581.XA CN201611176581A CN106786146B CN 106786146 B CN106786146 B CN 106786146B CN 201611176581 A CN201611176581 A CN 201611176581A CN 106786146 B CN106786146 B CN 106786146B
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- equipotential
- electrician
- rope
- ladder
- enter
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000005540 biological transmission Effects 0.000 title claims abstract description 20
- 239000004020 conductor Substances 0.000 claims description 17
- 238000009413 insulation Methods 0.000 claims description 14
- 238000012216 screening Methods 0.000 claims description 7
- 238000012546 transfer Methods 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000013519 translation Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 2
- 238000007796 conventional method Methods 0.000 abstract description 2
- 230000005684 electric field Effects 0.000 description 11
- 238000013459 approach Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- 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
Abstract
The present invention relates to enter equipotential operational method in a kind of high-tension line work progress, especially a kind of tri- identical tower window list back transmission line compact linear towers of 500kV enter equipotential operational method, it provides and mutually enters equipotential operational method from side phase with middle, the operational method is used from tower enters equipotential technical solution outside window, safe distance is far longer than the combinational gap required by livewire work, solve the problems, such as that conventional method cannot be satisfied three identical tower window compact transmission lines and enter equipotential minimum combination gap, also ensure that equipotential electrician can be safe, reliably into highfield.Live line tool used in the present invention is light simple, safe and practical, can complete to enter three identical tower window compact linear tower equipotential live line works, and be particularly suitable for mountain route livewire work, have the advantages that tool is few, easy to operation.
Description
Technical field
The present invention relates to enter equipotential operational method, especially a kind of 500kV in a kind of high-tension line work progress
Three identical tower window list back transmission line compact linear towers enter equipotential operational method.
Background technology
500kV single loop compact transmission lines mostly use the straight line pole that conducting wire is arranged at inverted triangle.Circuit compact transmission
The technological break-through arrangements of conductors structure and arrangement of conventional line, makes three-phase conducting wire be placed in same tower window, is in inverted triangle
Type arrange, greatly have compressed conducting wire phase spacing and conducting wire to tower body（Over the ground）Distance；Electrification is greatly had compressed to make
Industry security combination clearance distance brings prodigious job safety risk to using conventional electrification operating type to carry out livewire work.
Livewire work is quick to eliminate line fault, it is ensured that circuit normally continuously puts into operation, the essential condition of safe operation it
One.Since compact transmission line significantly compresses the phase spacing and tower head gap of conducting wire, and change the arrangement side of conducting wire
Formula keeps the equipotential mode of the disengaging of compact transmission line different from conventional line.Conventional line tangent tower generally use is slided
Enter equipotential method in rail chair lift method, hanging basket method, insulated flexible ladder method tower window, but following points are insufficient：
(1) steel tower tower window gap needed for sliding rail chair lift method is larger, and the big weight of the rigid insulations tool sizes such as sliding rail is big, gives work
The use of tool, transport, transfer tape carry out certain difficulty, it is difficult to implement.
(2) hanging basket method need to use the hanging basket of different size need to be to track rope length into before electric field according to operating personnel's figure
Degree is repeatedly adjusted, and can only enter a certain fixed position of electric field along the track that track is restricted.
Insulated flexible ladder method using when tower window the air gap to have larger safety margin, and be not suitable in wire spacing
Equipotential live line work is carried out on the conducting wire of smaller conducting wire vertical arrangement.
(4) three of the above enters equipotential method in tower window and need to consider whether to meet combinational gap, makees if cannot be satisfied electrification
The requirement of industry combinational gap safe distance, then can not carry out livewire work.
Invention content
There is provided it is an object of the invention to shortcoming according to prior art one kind disclosure satisfy that safe distance requirement,
Tri- identical tower window list back transmission line compacts of 500kV that are simple to operate, reducing labor intensity, reduce job safety risk
Tangent tower enters equipotential operational method.
The purpose of the present invention is what is realized by following approach：
Tri- identical tower window list back transmission line compact linear towers of 500kV enter equipotential operational method, and there are two tools
Scheme respectively mutually enters equipotential from side and therefrom mutually enters equipotential, and two scheme difference are as follows：
（One）Mutually enter equipotential operational method from side, steps are as follows：
Ground potential electrician, at isopotential electrical work point Bie Dengta to aerial earth wire cross-arm, if ground wire is insulated static wire,
It will be ground wire grounded；
(2) ground staff passes to ground potential electrician after connecting the rope ladder headstock with pulley with insulated flexible ladder；
(3) rope ladder headstock pulley is mounted on tangent tower aerial earth wire by ground potential electrician；
(4) equipotential electrician fastens insulation protection rope, checks that each position connection of screening clothing can climb up insulated flexible ladder rearward；
(5) ground staff makes rope ladder headstock Slideslip outside aerial earth wire with equipotential electrician cooperation, slides to away from aerial earth wire
Stop when 4 meters of positions of hanging point, equipotential electrician locks the brake of rope ladder head pulley；
(6) equipotential electrician climbs horizontal position identical with side phase conductor to its binocular from aerial earth wire along insulated flexible ladder；
(7) equipotential electrician applies for potential transfer, and after work responsible person agrees to, equipotential electrician's electricity consumption bit transition stick is drawn
To side phase conductor, translation body enters highfield.
（Two）Therefrom mutually enter equipotential operational method, steps are as follows：
(1) ground potential electrician Deng Ta is to side phase cross-arm midpoint, at equipotential electrician Deng Ta to steel tower flat mouth；
(2) ground staff transmits the rope ladder headstock connected and insulated flexible ladder to middle phase conductor position；
(3) rope ladder headstock is mounted on middle phase conductor by ground potential electrician, equipotential electrician cooperation；
(4) equipotential electrician accomplishes fluently insulation protection rope and checks again for the connection of screening clothing, after errorless, is put down by steel tower
Insulated flexible ladder is climbed up at mouthful；
(5) ground potential electrician tenses insulation protection rope, and ground staff's transmission rope of coming up allows rope ladder head and the rope ladder phase in
Sub-conductor slides to outward to be more than away from tower body at 4m；
(6) ground potential electrician tenses insulation protection rope, and cooperation equipotential electrician is along rope ladder to head away from lower sub-conductor
500mm stops behind position, applies for potential transfer, and equipotential electrician enters by force upwardly through rope ladder after obtaining work responsible person license
Electric field.
Involved by above-mentioned two scheme in addition to equipotential electrician routinely enter electric field insulation protection rope and screening clothing other than,
Only with insulated flexible ladder and（Band pulley）Rope ladder headstock, therefore used Work tool is simple, will not bear a heavy burden.
The present invention innovative point one be：The position of equipotential live line work is carried out as disengaging 500kV transmission lines of electricity using tower window.
The present invention innovative point second is that：Changing the when of entering electric field in the past must have ground staff to assist cooperation dragging soft
Ladder makes rope ladder swing, and equipotential electrician shakes by rope ladder enters electric field；It overcomes simultaneously since landform residing for circuit is severe,
Line the too big ground staff of height difference can not complete assist operation.When the present invention mutually enters electric field from side, as equipotential electrician to side
When conducting wire horizontal position, using electric potential transferring stick overlap joint, side conducting wire is pulled, translation body enters electric field, therefrom mutually enters electric field
When, then it is that electric field is directly moved upwardly by rope ladder.
The present invention innovative point three be：Due to the change of job position and operating type, foot is provided for operating personnel
Enough activity spaces, the requirement of movement range when the limitation to relax operating personnel's height body length requires and passes in and out electric field.
In conclusion the present invention provides one kind being directed to tri- identical tower window list loop compact transmission line tangent towers of 500kV
Into equipotential method, which uses from tower enters equipotential technical solution outside window, and safe distance is far longer than
Combinational gap required by livewire work, solves conventional method and cannot be satisfied three identical tower window compact transmission lines and enter
The problem of current potential minimum combination gap, also ensures that equipotential electrician can reliably and securely enter highfield.It is used herein
Live line tool it is light simple, safe and practical, can complete enter three identical tower window compact linear tower equipotential live line works,
And it is particularly suitable for mountain route livewire work, have the advantages that tool is few, easy to operation.
The present invention is described further with reference to embodiment.
Specific implementation mode
Most preferred embodiment：
The present invention is directed to the particularity of compact transmission line straight line pole structure, provides a kind of disengaging rationally, safe
The mode of equipotential live line work, including two schemes respectively mutually enter equipotential from side and therefrom mutually enter two kinds of equipotential
Mode, it is specific as follows：
(i) side mutually enters equipotential
Ground potential electrician, at equipotential electrician Deng Ta to aerial earth wire cross-arm, if ground wire is insulated static wire, by ground
Line is grounded；
(2) ground staff is by rope ladder headstock（Band pulley）Ground potential electrician is passed to after being connect with insulated flexible ladder；
(3) rope ladder headstock pulley is mounted on tangent tower aerial earth wire by ground potential electrician；
(4) equipotential electrician fastens insulation protection rope, checks that each position connection of screening clothing can climb up insulated flexible ladder rearward；
(5) ground staff makes rope ladder headstock Slideslip outside aerial earth wire with equipotential electrician cooperation, slides to away from aerial
Stop when 4 meters of positions of line hanging point, locking rope ladder head pulley brake；
Equipotential electrician from aerial earth wire along insulated flexible ladder climb to（Binocular with）Side phase conductor horizontal position；
(7) apply for potential transfer, after work responsible person agrees to, use electric potential transferring stick（Overlap joint pulls）Side is pulled to mutually to lead
Line, translation body enter highfield.
(ii) mutually enter equipotential in
(1) ground potential electrician Deng Ta is to side phase cross-arm midpoint, at equipotential electrician Deng Ta to steel tower flat mouth；
(2) ground staff transmits the rope ladder headstock connected and insulated flexible ladder to middle phase conductor position；
(3) rope ladder headstock is mounted on middle phase conductor by ground potential electrician, equipotential electrician cooperation；
(4) equipotential electrician accomplishes fluently insulation protection rope and checks again for the connection of screening clothing, after errorless, by flat mouth
Climb up insulated flexible ladder；
(5) ground potential electrician tenses insulation protection rope, and slowly loose transmission rope makes rope ladder head and rope ladder mutually sub in ground staff
Conducting wire slides to outward to be more than away from tower body at 4m；
(6) ground potential electrician tenses insulation protection rope, and cooperation equipotential electrician is along rope ladder to head away from lower sub-conductor
500mm stops behind position, applies for potential transfer, and equipotential electrician enters highfield after obtaining work responsible person license.
The not described part of the present invention is same as the prior art.
Claims (2)
- Tri- identical tower window list back transmission line compact linear towers of 1.500kV enter equipotential operational method, which is characterized in that Including having the following steps：（1）It, will if ground wire is insulated static wire at ground potential electrician, isopotential electrical work point Bie Dengta to aerial earth wire cross-arm It is ground wire grounded；（2）Ground staff passes to ground potential electrician after connecting the rope ladder headstock with pulley with insulated flexible ladder；（3）Rope ladder headstock pulley is mounted on tangent tower aerial earth wire by ground potential electrician；（4）Equipotential electrician fastens insulation protection rope, checks that each position connection of screening clothing can climb up insulated flexible ladder rearward；（5）Ground staff makes rope ladder headstock Slideslip outside aerial earth wire with equipotential electrician cooperation, slides to and is hung away from aerial earth wire Stop when 4 meters of positions of point, equipotential electrician locks the brake of rope ladder headstock pulley；（6）Equipotential electrician climbs horizontal position identical with side phase conductor to its binocular from aerial earth wire along insulated flexible ladder；（7）Equipotential electrician applies for potential transfer, and after work responsible person agrees to, equipotential electrician's electricity consumption bit transition stick is pulled to side Phase conductor, translation body enter highfield.
- Tri- identical tower window list back transmission line compact linear towers of 2.500kV enter equipotential operational method, which is characterized in that Including having the following steps：1）Ground potential electrician Deng Ta is to side phase cross-arm midpoint, at equipotential electrician Deng Ta to steel tower flat mouth；2）Ground staff transmits the rope ladder headstock connected and insulated flexible ladder to middle phase conductor position；3）Rope ladder headstock is mounted on middle phase conductor by ground potential electrician, equipotential electrician cooperation；4）Equipotential electrician accomplishes fluently insulation protection rope and checks the connection of screening clothing, after errorless, is climbed up by steel tower flat mouth Insulated flexible ladder；5）Ground potential electrician tenses insulation protection rope, and ground staff's transmission rope of coming up allows rope ladder headstock and insulated flexible ladder in Phase sub-conductor slides to outward to be more than away from tower body at 4m；6）Ground potential electrician tenses insulation protection rope, and cooperation equipotential electrician is along rope ladder to head away from lower sub-conductor 500mm Stopping is postponed, applies for potential transfer, equipotential electrician enters forceful electric power upwardly through insulated flexible ladder after obtaining work responsible person license .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611176581.XA CN106786146B (en) | 2016-12-19 | 2016-12-19 | Tri- identical tower window list back transmission line compact linear towers of 500kV enter equipotential operational method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611176581.XA CN106786146B (en) | 2016-12-19 | 2016-12-19 | Tri- identical tower window list back transmission line compact linear towers of 500kV enter equipotential operational method |
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| Publication Number | Publication Date |
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| CN106786146A CN106786146A (en) | 2017-05-31 |
| CN106786146B true CN106786146B (en) | 2018-07-24 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108074280B (en) * | 2017-12-18 | 2021-09-03 | 国网江苏省电力有限公司检修分公司 | Method for simulating moving track of hanging basket in equipotential live working of high-voltage transmission line |
| CN108133510A (en) * | 2017-12-18 | 2018-06-08 | 国网江苏省电力有限公司检修分公司 | Ultra-high-tension power transmission line Equipotential live working hanging basket method enters simulation system and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101567530A (en) * | 2009-06-03 | 2009-10-28 | 国网电力科学研究院 | Safe method for entering tangent tower equal potentials for live-wire operation in 660kV direct current lines |
| CN103515858A (en) * | 2013-09-09 | 2014-01-15 | 国家电网公司 | Method for entering 400kV direct-current electric transmission line tangent tower equipotential |
| CN103606842A (en) * | 2013-11-08 | 2014-02-26 | 国家电网公司 | 220 KV linear same-tower double-loop live-line operation method |
| CN103715630A (en) * | 2013-12-16 | 2014-04-09 | 国家电网公司 | Method for entering same-tower double-circuit alternating-current transmission line tangent tower equal potential |
| CN204205416U (en) * | 2014-10-30 | 2015-03-11 | 中国南方电网有限责任公司超高压输电公司柳州局 | 500kV multiple-circuit on same tower tangent tower turnover equipotential exclusive guideway |
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2016
- 2016-12-19 CN CN201611176581.XA patent/CN106786146B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101567530A (en) * | 2009-06-03 | 2009-10-28 | 国网电力科学研究院 | Safe method for entering tangent tower equal potentials for live-wire operation in 660kV direct current lines |
| CN103515858A (en) * | 2013-09-09 | 2014-01-15 | 国家电网公司 | Method for entering 400kV direct-current electric transmission line tangent tower equipotential |
| CN103606842A (en) * | 2013-11-08 | 2014-02-26 | 国家电网公司 | 220 KV linear same-tower double-loop live-line operation method |
| CN103715630A (en) * | 2013-12-16 | 2014-04-09 | 国家电网公司 | Method for entering same-tower double-circuit alternating-current transmission line tangent tower equal potential |
| CN204205416U (en) * | 2014-10-30 | 2015-03-11 | 中国南方电网有限责任公司超高压输电公司柳州局 | 500kV multiple-circuit on same tower tangent tower turnover equipotential exclusive guideway |
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