CN104218493B - ± 800kV UHVDC Transmission Lines live-line replacing strain hard tube mother's wire jumper insulator technique - Google Patents
± 800kV UHVDC Transmission Lines live-line replacing strain hard tube mother's wire jumper insulator technique Download PDFInfo
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- CN104218493B CN104218493B CN201410405008.6A CN201410405008A CN104218493B CN 104218493 B CN104218493 B CN 104218493B CN 201410405008 A CN201410405008 A CN 201410405008A CN 104218493 B CN104218493 B CN 104218493B
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- 239000012212 insulator Substances 0.000 title claims abstract description 75
- 230000005540 biological transmission Effects 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000012546 transfer Methods 0.000 claims abstract description 14
- 239000002131 composite material Substances 0.000 claims description 37
- 241000282472 Canis lupus familiaris Species 0.000 claims description 13
- 239000000725 suspension Substances 0.000 claims description 11
- 239000012211 strain insulator Substances 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 7
- 238000007689 inspection Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 5
- 230000003068 static effect Effects 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 230000008774 maternal effect Effects 0.000 claims description 2
- 230000005684 electric field Effects 0.000 claims 1
- 230000007704 transition Effects 0.000 claims 1
- 238000012360 testing method Methods 0.000 description 6
- 238000012216 screening Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
The present invention provides one kind ± 800kV UHVDC Transmission Lines live-line replacing strain hard tube mother's wire jumper insulator technique.± 800kV UHVDC Transmission Lines live-line replacing strain hard tube mother's wire jumper insulator technique of the present invention is using the method for transfer hard tube mother and drain line load, wire jumper insulator stress is made to transfer on hard tube mother's lift system bearing tool, thus reaching dismounting wire jumper insulator two ends junction point, smoothly change the purpose of wire jumper insulator.
Description
【Technical field】
The present invention relates to extra high voltage line construction field, more particularly, to one kind ± 800kV UHVDC Transmission Lines are powered more
Change strain insulator hard tube mother's wire jumper insulator technique.
【Background technology】
With putting into operation of ± 800kV direct-current extra-high voltage line, the research of ± 800kV line live-line work problem also becomes
The main direction of studying of domestic livewire work work at present.
The Replacement procedure method of ± 800kV UHVDC Transmission Lines livewire work strain insulator hard tube mother's wire jumper insulator is at home
Still belong to blank, need badly and carry out input research.
【Content of the invention】
In view of this, for overcoming the deficiencies in the prior art it is necessary to provide one kind ± 800kV UHVDC Transmission Lines powered
Change strain insulator hard tube mother's wire jumper insulator technique.
One kind ± 800kV UHVDC Transmission Lines live-line replacing strain hard tube mother's wire jumper insulator technique, walks including following
Suddenly：Isoelectric level workman enters isoelectric level；Ground electrician becomes two sets to carry firmly according to the pole length assembly and connection of joining that the inspection of the scene of a crime measures
Pipe mother system；Ground electrician lifts by crane respectively and carries hard tube mother system, and two isopotential electrical work points will not carry hard tube mother system lower end
Hard tube mother's lifting dogs are arranged on hard pipe bus, and on tower, electrician installs carrying fixture on the strain cross arm of hard tube mother system upper end
On the construction hole of strain cross arm；Two isoelectric level electricians tighten up the screw mandrel carrying in hard tube mother system simultaneously, make the female lifting of hard tube
Pipe bus uniform stressed in fixture, by the load transfer on composite insulator to pipe mother's lift system；Isoelectric level electrician tear open
Except the U-shaped suspension bolt of composite insulator lower end, isoelectric level electrician is a tricing line in composite insulator lower end, ground electrician
Easing out tricing line makes composite insulator by heeling condition slowly near tower body and reach nature plumbness, electrician on isoelectric level tower
Remove the U-shaped suspension bolt of composite insulator upper end, ground electrician controls transmission rope that composite insulator is at the uniform velocity placed ground；Ground
Damaged composite insulator is removed from transmission rope by face electrician, and new composite insulator is hung on transmission rope, and lifting is new to be synthesized
To cross-arm-end hanging point, on tower, electrician installs the U-shaped suspension bolt of new composite insulator to insulator, and ground electrician tightens up tricing line
New composite insulator is changed into heeling condition from natural plumbness, isoelectric level electrician installs the U-shaped suspension bolt of hard tube female end；Deng
Current potential electrician eases out, after checking new composite insulator stressing conditions, the screw mandrel carrying in hard tube mother system, will carry on hard tube mother system
Load transfer is on new composite insulator.
In at least one of which embodiment, described carry that hard tube mother system includes hard tube mother's lifting dogs, screw mandrel, insulation are drawn
Fixture on bar, strain cross arm, on described hard tube mother's lifting dogs, screw mandrel, insulated tension pole, strain cross arm, fixture assembly and connection becomes institute
State and carry hard tube mother system, described carry the length that hard tube mother system combines and prospecting measurement to join pole length consistent.
In at least one of which embodiment, described hard tube mother's lifting dogs include link plate and mainboard, described link plate and master
Auricle is passed through respectively in the two ends of plate, and the centre position of described link plate offers the hanging hole being connected with described screw mandrel, on described mainboard
It is provided with the arcwall face of accommodating hard pipe bus at the two ends, described auricle is provided with makes described link plate and mainboard dismounting or assembling
Bolt.
In at least one of which embodiment, on described strain cross arm, fixture includes installing clamp and hangers, described hangers
Be arranged on the described lower section installing clamp, between described installation clamp and hangers, be provided with reinforcement, described installation clamp lateral
Section is in crouch U-shaped to be fastened at the upper hanging point of strain cross arm, described installation clamp offers and passes through institute for bolt
State the fixing hole that fixture on strain cross arm is fixed on strain cross arm, described hangers offers for described insulated tension pole even
The hanging hole connecing.
In at least one of which embodiment, described technique is further comprising the steps of：On tower, electrician carries transmission rope and steps on tower,
Accomplish fluently fixing point at cross-arm hanging point；Hanging basket and pulley block system are passed to electrician on tower by transmission system by ground electrician；
On tower, hanging basket is passed in and out equipotential mode with assembly pulley according to hanging basket method and carries out arranging on tower by electrician；Isopotential electrical work area enters to hang
Basket, ground electrician controls pulley block system tricing line to make hanging basket with static line as radius, with arc track slowly near anchor support
Hard pipe bus, and catch on hard tube female entrance highfield using electric potential transferring stick at 0.5 meter from hard pipe bus.
In at least one of which embodiment, described technique is further comprising the steps of：Isoelectric level electrician is joined with electrician on tower
Close dismounting and carry hard tube mother system, ground electrician will carry hard tube mother system and be transferred to ground by transmitting rope；Isopotential electrical work area enters
Electric potential transferring stick is simultaneously hooked hard tube mother by hanging basket, and ground electrician tightens up assembly pulley tricing line, waits electricity after electric potential transferring stick stress
Position electrician eases out electric potential transferring stick, and isoelectric level electrician at the uniform velocity returns to cross-arm；On tower, hanging basket and transmission are restricted systems communicate extremely by electrician
Ground electrician, on tower, electrician checks and has or not lower tower after legacy on tower.
± 800kV UHVDC Transmission Lines live-line replacing strain hard tube mother's wire jumper insulator technique of the present invention is using transfer
Hard tube mother and the method for drain line load, make wire jumper insulator stress transfer on hard tube mother's lift system bearing tool, thus
Reach dismounting wire jumper insulator two ends junction point, smoothly change the purpose of wire jumper insulator.
【Brief description】
± 800kV UHVDC Transmission Lines live-line replacing strain the hard tube that Fig. 1 provides for presently preferred embodiments of the present invention is female
Schematic diagram fixed by transmission rope in wire jumper insulator technique.
± 800kV UHVDC Transmission Lines live-line replacing strain the hard tube that Fig. 2 provides for presently preferred embodiments of the present invention is female
Hanging basket pulley block system arrangement schematic diagram in wire jumper insulator technique.
Fig. 3 A, 3B are respectively the front view of hard tube mother's lifting dogs and left view used in the technique of the present invention.
Fig. 4 A, 4B, 4C be respectively the right view of fixture on the strain cross arm used in the technique of the present invention, front view and
Top view.
The front view carrying hard tube mother system used in technique that Fig. 5 is the present invention for Fig. 3.
± 800kV UHVDC Transmission Lines live-line replacing strain the hard tube that Fig. 6 provides for presently preferred embodiments of the present invention is female
The schematic diagram of the dismounting composite insulator in wire jumper insulator technique.
【Specific embodiment】
For more fully understanding the present invention, below with reference to accompanying drawing and instantiation, invention is described in detail.
± 800kV UHVDC Transmission Lines livewire work the person that first need support personnel identical with 500kV livewire work
Safety, therefore, it is qualified that ± 800kV electric pressure screening clothing, insulated tension pole, insulating cord need to do first preventative electrical test,
Could use in livewire work scene practical operation.Preventative electrical test divides and can be divided into 2 kinds：
(1) switching impulse pressure test：Test length 6.2m, adopts+250/2500 μ s standard impulse ripple, applied voltage
1600kV totally 15 times, should no flashover, no puncture, no generate heat；
(2) DC break down voltage test：Test length 6.2m, applies DC voltage 950kV.Pressure-resistant time 5min.Should no flashover,
No puncture, no generate heat.
Need before livewire work to carry out the inspection of the scene of a crime to live shaft tower, judge whether site environment is met with shaft tower technical parameter
Livewire work condition：
(1) the anchor support inspection of the scene of a crime of ± 800kV UHVDC Transmission Lines need to be examined in the trumpet side span greatly of scene and have or not friendship
Fork is crossed over；
(2) ± 800kV UHVDC Transmission Lines anchor support basal perimeter landform is enough to meet livewire work site requirements, makees
There is position erect-position below industry point；
(3) adopt lower plane and hard tube at infrared range-measurement system right ± 800kV UHVDC Transmission Lines anchor support cross-arm hanging point
On mother, plane is found range, and determines that carry hard tube mother system joins pole length and hanging basket static line length；
(4) hanging basket initial position and assembly pulley fixed position are determined according to hanging basket static line length；
(5) between technical staff need to be according to livewire work combination during operation shaft tower check isoelectric level electrician entrance isoelectric level
Gap is not less than 6.6 meters.
Equipotential live line work personnel must dress ± 800kV livewire work private mask clothes and (include cap, shielding mask, disjunctor
Clothing, glove, conductive socks or conductive shoeses, similarly hereinafter).Fire-retardant underwear also should be worn, screening clothing performance indications should meet in screening clothing
The regulation of GB6568-1 and GB6568-2, shielding mask shield effectiveness cannot be less than 20dB.The each position of screening clothing should connect well,
Reliable, and cannot be greater than 20 Ω using the resistance value between circuit tester measurement screening clothing clothing, trousers most distal point.
± 800kV UHVDC Transmission Lines live-line replacing strain hard tube mother's wire jumper insulator technique of the present invention is using transfer
Hard tube mother and the method for drain line load, make wire jumper insulator stress transfer on hard tube mother's lift system bearing tool, thus
Reach dismounting wire jumper insulator two ends junction point, smoothly change the purpose of wire jumper insulator.The extra-high straightening of ± 800kV of the present invention
Flow Line livewire work strain insulator hard tube mother's wire jumper replacing insulator technique is specific as follows：
(1) on tower, electrician carries transmission rope and steps on tower, accomplishes fluently fixing point, transmit according to installing shown in Fig. 1 at cross-arm hanging point
System.
(2) ground electrician passes through transmission system, and hanging basket and pulley block system are passed to electrician on tower.
(3) on tower, hanging basket is carried out according to the hanging basket method equipotential method of turnover (as shown in Figure 2) by electrician with assembly pulley
Arrange on tower.
(4) after on tower, electrician checks that pulley block system connection is intact, isopotential electrical work area enters hanging basket, and ground electrician is controlled
Pulley block system tricing line processed, makes hanging basket with static line as radius, slowly female near anchor support hard tube with arc track, from hard
At female 0.5 meter of pipe, catch on hard tube mother using electric potential transferring stick, enter highfield.Now, isoelectric level electrician is extra-high with ± 800kV
Straightening Flow Line reaches same isoelectric level.
(5) ground electrician according to the inspection of the scene of a crime measure join pole length by hard tube mother lifting dogs 100 (in Fig. 3 A, 3B
Shown), mechanical lead screw 200, insulated tension pole 300, fixture 400 (as shown in Fig. 4 A, 4B, 4C) assembly and connection becomes on strain cross arm
Carry hard tube mother system (as shown in Figure 5), the length combining should with prospecting measurement to join pole length consistent.In operating procedure
In, two sets of hard tube mother system need to be carried altogether.
Hard tube mother's lifting dogs 100 include link plate 110 and mainboard 120, and the two ends of link plate 110 and mainboard 120 are passed through respectively
Auricle 130 connects.The centre position of link plate 110 offers hanging hole 112, for being connected with hydraulic screw rod 200.Lean on mainboard 120
It is provided with the arcwall face 122 of accommodating hard pipe bus at two close end.Auricle 130 is provided with bolt 132, is used for making link plate 110 and mainboard
120 dismountings or assembling.
On strain cross arm, fixture 400 includes installing clamp 410 and hangers 420, and hangers 420 is arranged on installs clamp 410
Lower section, installs clamp 410 and hangers 420 is directly provided with connecting the reinforcement 430 of the two.Install clamp 410 lateral cross be in
Sleeping U-shaped, for being fastened at the upper hanging point of strain cross arm.Install and offer fixing hole on clamp 410, for will be for bolt
Pass through and fixture on strain cross arm 400 is fixed on strain cross arm.Hanging hole 422 is offered on hangers 420, for insulated tension pole
300 connections.
(6) ground electrician lifts by crane respectively and carries hard tube mother system, and two isopotential electrical work points will not carry hard tube mother system lower end
Hard tube mother's lifting dogs 100 are arranged on hard pipe bus.On tower, fixture on strain cross arm 400 is arranged on strain cross arm by electrician
On construction hole.
(7), after pipe mother lift system installs, two isoelectric level electricians tighten up hydraulic screw rod 200 simultaneously, so that hard tube mother is carried
Rise the pipe bus uniform stressed in fixture 100, by the load transfer on composite insulator to pipe mother's lift system.
(8) refer to Fig. 6, isoelectric level electrician removes the U-shaped suspension bolt in composite insulator lower end, isoelectric level electrician is in synthesis
Insulator lower end is a tricing line, and ground electrician eases out tricing line, makes composite insulator by heeling condition, slowly near tower
Body, is finally reached nature plumbness, and on isoelectric level tower, electrician removes the U-shaped suspension bolt in composite insulator upper end, ground electrician
Control transmission rope, composite insulator is at the uniform velocity placed ground.
(9) damaged composite insulator is removed from transmission rope by ground electrician, and new composite insulator is hung over transmission rope
On, lift by crane new composite insulator to cross-arm-end hanging point, on tower, electrician installs U-shaped suspension bolt.Ground electrician tightens up tricing line,
Insulator is changed into heeling condition from natural plumbness average rate, isoelectric level electrician installs the U-shaped suspension bolt of hard tube female end.
(10), after isoelectric level electrician checks new composite insulator stressing conditions, ease out hydraulic screw rod 200, hard tube will be carried maternal
Load transfer on system is on new composite insulator.
(11) isoelectric level electrician and electrician's cooperation dismounting on tower carry hard tube mother system, and ground electrician will carry hard tube mother system and lead to
Cross transmission rope and be transferred to ground.
(12) isopotential electrical work area enters hanging basket, and electric potential transferring stick is hooked hard tube mother, and ground electrician tightens up assembly pulley control
Rope, hanging basket stress, after electric potential transferring stick stress, isoelectric level electrician eases out electric potential transferring stick, and isoelectric level electrician at the uniform velocity returns to horizontal stroke
Load (ground potential).
(13) on tower, hanging basket and transmission are restricted systems communicate to ground electrician by electrician, and on tower, electrician checks to have or not on tower and leaves
Lower tower after thing.
± 800kV UHVDC Transmission Lines live-line replacing strain hard tube mother's wire jumper insulator technique of the present invention is using transfer
Hard tube mother and the method for drain line load, make wire jumper insulator stress transfer on hard tube mother's lift system bearing tool, thus
Reach dismounting wire jumper insulator two ends junction point, smoothly change the purpose of wire jumper insulator.
± 800kV UHVDC Transmission Lines livewire work strain insulator hard tube mother's wire jumper replacing insulator process of the present invention
There is following innovation：
First, ± 800kV UHVDC Transmission Lines livewire work strain insulator hard tube mother wire jumper replacing insulator process exists
The whole nation belongs to first；
Furthermore, the design and use carrying the instrument of hard tube mother system belong to first in the whole nation；
Finally, live-line replacing ± 800kV UHVDC Transmission Lines strain insulator hard tube mother wire jumper composite insulator is in the whole nation
Belong to first.
Embodiment described above only have expressed the several embodiments of the present invention, and its description is more concrete and detailed, but simultaneously
Therefore the restriction to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, some deformation can also be made and improve, these broadly fall into the guarantor of the present invention
Shield scope.Therefore, the protection domain of patent of the present invention should be defined by claims.
Claims (6)
1. one kind ± 800kV UHVDC Transmission Lines live-line replacing strain hard tube mother wire jumper insulator technique, comprises the following steps：
Isoelectric level workman enters isoelectric level；
Ground electrician becomes two sets to carry hard tube mother system according to the pole length assembly and connection of joining that the inspection of the scene of a crime measures；
Ground electrician lifts by crane respectively and carries hard tube mother system, and two isopotential electrical work points will not be female for the hard tube carrying hard tube mother system lower end
Lifting dogs are arranged on hard pipe bus, and on tower, electrician is arranged on strain insulator by carrying fixture on the strain cross arm of hard tube mother system upper end
On the construction hole of cross-arm；
Two isoelectric level electricians tighten up the screw mandrel carrying in hard tube mother system simultaneously, make the pipe bus in hard tube mother's lifting dogs uniform
Stress, by the load transfer on composite insulator to pipe mother's lift system；
Isoelectric level electrician removes the U-shaped suspension bolt of composite insulator lower end, and isoelectric level electrician is one in composite insulator lower end
Root tricing line, ground electrician eases out tricing line makes composite insulator near tower body and reach nature plumbness by heeling condition,
On isoelectric level tower, electrician removes the U-shaped suspension bolt of composite insulator upper end, and ground electrician controls transmission to restrict composite insulator
At the uniform velocity place ground；
Damaged composite insulator is removed from transmission rope by ground electrician, new composite insulator is hung on transmission rope, lifting
To cross-arm-end hanging point, on tower, electrician installs the U-shaped suspension bolt of new composite insulator to new composite insulator, and ground electrician tighten up
New composite insulator is changed into heeling condition from natural plumbness by tricing line, and isoelectric level electrician installs the U-shaped link of hard tube female end
Bolt；
Isoelectric level electrician eases out, after checking new composite insulator stressing conditions, the screw mandrel carrying in hard tube mother system, will carry hard tube maternal
Load transfer on system is on new composite insulator.
2. ± 800kV UHVDC Transmission Lines live-line replacing strain hard tube mother's wire jumper insulator work according to claim 1
Skill it is characterised in that：The described hard tube mother system that carries includes hard tube mother's lifting dogs, screw mandrel, insulated tension pole, blocks on strain cross arm
Have, described in fixture assembly and connection one-tenth on described hard tube mother's lifting dogs, screw mandrel, insulated tension pole, strain cross arm, carry hard tube mother system,
Described carry the length that hard tube mother system combines and prospecting measurement to join pole length consistent.
3. ± 800kV UHVDC Transmission Lines live-line replacing strain hard tube mother's wire jumper insulator work according to claim 2
Skill it is characterised in that：Described hard tube mother's lifting dogs include link plate and mainboard, and ear is passed through at the two ends of described link plate and mainboard respectively
Piece, the centre position of described link plate offers the hanging hole being connected with described screw mandrel, described mainboard is provided with two ends accommodating
The arcwall face of hard pipe bus, described auricle is provided with the bolt making described link plate and mainboard dismounting or assembling.
4. ± 800kV UHVDC Transmission Lines live-line replacing strain hard tube mother's wire jumper insulator work according to claim 3
Skill it is characterised in that：On described strain cross arm, fixture includes installing clamp and hangers, and described hangers is arranged on described installation clamp
Lower section, be provided with reinforcement between described installation clamp and hangers, the lateral cross of described installation clamp is in that sleeping U-shaped is set with card
At the upper hanging point of strain cross arm, described installation clamp offers pass through for bolt and fixture on described strain cross arm is fixed
Fixing hole on strain cross arm, described hangers is offered the hanging hole for being connected with described insulated tension pole.
5. ± 800kV UHVDC Transmission Lines live-line replacing strain hard tube according to any one of claim 1 to 4 is female to jump
Line insulator technique is it is characterised in that described technique is further comprising the steps of：
On tower, electrician carries transmission rope and steps on tower, accomplishes fluently fixing point at cross-arm hanging point；
Hanging basket and pulley block system are passed to electrician on tower by transmission system by ground electrician；
On tower, hanging basket is passed in and out equipotential mode with assembly pulley according to hanging basket method and carries out arranging on tower by electrician；
Isopotential electrical work area enters hanging basket, and ground electrician controls pulley block system tricing line to make hanging basket with static line as radius, with circle
Arc track is near anchor support hard pipe bus, and it is strong to catch on the female entrance of hard tube using electric potential transferring stick at 0.5 meter from hard pipe bus
Electric field.
6. ± 800kV UHVDC Transmission Lines live-line replacing strain hard tube according to any one of claim 1 to 4 is female to jump
Line insulator technique is it is characterised in that described technique is further comprising the steps of：
Isoelectric level electrician carries hard tube mother system with electrician's cooperation dismounting on tower, and ground electrician will carry hard tube mother system and be restricted by transmission
It is transferred to ground；
Isopotential electrical work area enters hanging basket and electric potential transferring stick is hooked hard tube mother, and ground electrician tightens up assembly pulley tricing line, treats electricity
After bit transition rod stress, isoelectric level electrician eases out electric potential transferring stick, and isoelectric level electrician at the uniform velocity returns to cross-arm；
On tower, hanging basket and transmission are restricted systems communicate to ground electrician by electrician, under on tower, electrician checks and has or not after legacy on tower
Tower.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410405008.6A CN104218493B (en) | 2014-08-13 | 2014-08-13 | ± 800kV UHVDC Transmission Lines live-line replacing strain hard tube mother's wire jumper insulator technique |
| PCT/CN2014/000847 WO2016023141A1 (en) | 2014-08-13 | 2014-09-16 | Process for live replacement of tension hard-tube bus-bar jumper insulator of +/- 800kv ultra-high-voltage dc transmission line |
| EP14899584.8A EP3196998B1 (en) | 2014-08-13 | 2014-09-16 | Process for live replacement of tension hard-tube bus-bar jumper insulator of +/- 800kv ultra-high-voltage dc transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410405008.6A CN104218493B (en) | 2014-08-13 | 2014-08-13 | ± 800kV UHVDC Transmission Lines live-line replacing strain hard tube mother's wire jumper insulator technique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104218493A CN104218493A (en) | 2014-12-17 |
| CN104218493B true CN104218493B (en) | 2017-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410405008.6A Active CN104218493B (en) | 2014-08-13 | 2014-08-13 | ± 800kV UHVDC Transmission Lines live-line replacing strain hard tube mother's wire jumper insulator technique |
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| CN (1) | CN104218493B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106129896A (en) * | 2016-07-26 | 2016-11-16 | 中国南方电网有限责任公司超高压输电公司柳州局 | Pole insulator chain transmission method on ± 500kV common-tower double-return DC line tangent tower |
| CN108691449B (en) * | 2018-05-29 | 2023-08-22 | 中国电力工程顾问集团西南电力设计院有限公司 | Direct current field polar line outlet structure based on integrated framework |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3996624B1 (en) * | 2006-12-08 | 2007-10-24 | 折野電設株式会社 | How to replace Choshiren |
| CN103227431A (en) * | 2013-03-19 | 2013-07-31 | 国家电网公司 | Method for replacing insulator chains in 220 kV long-span high tower in live working |
| CN103474909A (en) * | 2013-09-25 | 2013-12-25 | 国网河南省电力公司平顶山供电公司 | Method for replacing multi-loop strain insulator string in drainage wire supporting distance expanding hot-line working |
| CN103606854A (en) * | 2013-11-27 | 2014-02-26 | 国家电网公司 | Operating method for replacing tension insulator on super and ultra-high voltage direct current transmission line in electrified mode |
| CN103618251A (en) * | 2013-11-27 | 2014-03-05 | 国家电网公司 | Technology for electrified overhaul of +-800kV ultrahigh voltage direct-current transmission line |
-
2014
- 2014-08-13 CN CN201410405008.6A patent/CN104218493B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3996624B1 (en) * | 2006-12-08 | 2007-10-24 | 折野電設株式会社 | How to replace Choshiren |
| CN103227431A (en) * | 2013-03-19 | 2013-07-31 | 国家电网公司 | Method for replacing insulator chains in 220 kV long-span high tower in live working |
| CN103474909A (en) * | 2013-09-25 | 2013-12-25 | 国网河南省电力公司平顶山供电公司 | Method for replacing multi-loop strain insulator string in drainage wire supporting distance expanding hot-line working |
| CN103606854A (en) * | 2013-11-27 | 2014-02-26 | 国家电网公司 | Operating method for replacing tension insulator on super and ultra-high voltage direct current transmission line in electrified mode |
| CN103618251A (en) * | 2013-11-27 | 2014-03-05 | 国家电网公司 | Technology for electrified overhaul of +-800kV ultrahigh voltage direct-current transmission line |
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| CN104218493A (en) | 2014-12-17 |
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