CN104218493A - Process for electrified replacing of tension-resistant hard tube bus jumper insulator for +/-800kV extra-high-voltage direct-current line - Google Patents
Process for electrified replacing of tension-resistant hard tube bus jumper insulator for +/-800kV extra-high-voltage direct-current line Download PDFInfo
- Publication number
- CN104218493A CN104218493A CN201410405008.6A CN201410405008A CN104218493A CN 104218493 A CN104218493 A CN 104218493A CN 201410405008 A CN201410405008 A CN 201410405008A CN 104218493 A CN104218493 A CN 104218493A
- Authority
- CN
- China
- Prior art keywords
- hard tube
- electrician
- tower
- insulator
- strain
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Electric Cable Installation (AREA)
- Insulators (AREA)
Abstract
The invention provides a process for electrified replacing of a tension-resistant hard tube bus jumper insulator for a +/-800kV extra-high-voltage direct-current line. A method of hard tube bus transferring and drainage line loading is adopted to enable stress of the jumper insulator to be transferred on a force-bearing tool of a hard tube bus lifting system, so that the objective of demounting connecting points at two ends of the jumper insulator and then smoothly replacing the jumper insulator is achieved.
Description
[technical field]
The present invention relates to extra high voltage line construction field, relate in particular to the female wire jumper insulator of one ± 800kV UHVDC Transmission Lines live-line replacing strain hard tube technique.
[background technology]
Along 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 current domestic live line working work.
It is blank that the Replacement procedure method of the female wire jumper insulator of ± 800kV UHVDC Transmission Lines live line working strain insulator hard tube still belongs at home, needs badly and carry out input research.
[summary of the invention]
In view of this,, for overcoming the deficiencies in the prior art, be necessary to provide the female wire jumper insulator of one ± 800kV UHVDC Transmission Lines live-line replacing strain hard tube technique.
The female wire jumper insulator of one ± 800kV UHVDC Transmission Lines live-line replacing strain hard tube technique, comprises the following steps: equipotential workman enters equipotential; The pole length assembly and connection of joining that ground electrician measures according to the inspection of the scene of a crime becomes two covers to carry hard tube mother system; Ground electrician lifts by crane respectively and carries hard tube mother system, two isopotential electrical work points do not promote jig and are arranged on hard pipe bus female the hard tube of carrying hard tube mother system lower end, and on tower, electrician is arranged on the construction hole of strain cross arm carrying jig on the strain cross arm of hard tube mother system upper end; Two equipotential electricians tighten up the screw mandrel of carrying in hard tube mother system simultaneously, make the female pipe bus uniform stressed promoting in jig of hard tube, by the load transfer on synthetic insulator on the female elevator system of pipe; Equipotential electrician removes the U-shaped suspension bolt of synthetic insulator lower end, equipotential electrician is a tricing line in synthetic insulator lower end, ground electrician eases out tricing line and makes synthetic insulator by the slowly close tower body of heeling condition and reach nature plumbness, on equipotential tower, electrician removes the U-shaped suspension bolt of synthetic insulator upper end, and ground electrician controls transmission rope synthetic insulator is at the uniform velocity placed to ground; Ground electrician removes damaged synthetic insulator from transmitting rope, new synthetic insulator is hung over and transmitted on rope, lift by crane new synthetic insulator to cross-arm-end hanging point place, on tower, electrician installs the U-shaped suspension bolt of new synthetic insulator, ground electrician tightens up tricing line new synthetic insulator is become to heeling condition from natural plumbness, and equipotential electrician installs the U-shaped suspension bolt of hard tube female end; Equipotential electrician eases out the screw mandrel of carrying in hard tube mother system after checking new synthetic insulator stressing conditions, will propose load transfer on hard tube mother system to new synthetic insulator.
Therein at least one embodiment, the described hard tube mother system of carrying comprises jig on the female lifting of hard tube jig, screw mandrel, insulated tension pole, strain cross arm, described hard tube is female to be promoted on jig, screw mandrel, insulated tension pole, strain cross arm jig assembly and connection and carries hard tube mother system described in becoming, described in to put forward the length that hard tube mother system combines consistent with prospecting measurement length.
Therein at least one embodiment, the female jig that promotes of described hard tube comprises link plate and mainboard, auricle is passed through respectively at the two ends of described link plate and mainboard, the centre position of described link plate offers the hanging hole being connected with described screw mandrel, on described mainboard, be provided with the arcwall face of accommodating hard pipe bus near two ends place, described auricle is provided with the bolt that makes described link plate and mainboard dismounting or assembling.
Therein at least one embodiment, on described strain cross arm, jig comprises installation clamp and hangers, described hangers is arranged on the below of described installation clamp, between described installation clamp and hangers, be provided with reinforcement, the lateral cross of described installation clamp is sleeping U font to be fastened on the upper hanging point place of strain cross arm, on described installation clamp, offer for bolt and pass jig on described strain cross arm is fixed on to the fixing hole on strain cross arm, on described hangers, offer the hanging hole for being connected with described insulated tension pole.
In at least one embodiment, described technique is further comprising the steps of therein: on tower, electrician carries transmission rope and steps on tower, and at cross-arm hanging point, fixing point is accomplished fluently at place; Ground electrician passes to electrician on tower by transmission system by hanging basket and pulley block system; Upper electrician passes in and out equipotential mode by hanging basket and assembly pulley according to hanging basket method and carries out arranging on tower; Isopotential electrical work area enters hanging basket, and ground electrician controls pulley block system tricing line makes hanging basket taking static line as radius, slowly near strain tower hard pipe bus, and enters highfield using electric potential transferring stick to catch on hard tube mother from 0.5 meter of of hard pipe bus with arc track.
In at least one embodiment, described technique is further comprising the steps of therein: equipotential electrician coordinates dismounting to carry hard tube mother system with electrician on tower, ground electrician will carry hard tube mother system and be restricted and be passed to ground by transmission; Isopotential electrical work area enters hanging basket and electric potential transferring stick is hooked to hard tube mother, and ground electrician tightens up assembly pulley tricing line, and after electric potential transferring stick is stressed, equipotential electrician eases out electric potential transferring stick, and equipotential electrician at the uniform velocity gets back to cross-arm; On tower, electrician is passed to ground electrician by hanging basket with transmitting rope system, and on tower, electrician checks and on tower, has or not lower tower after legacy.
The female wire jumper insulator of of the present invention ± 800kV UHVDC Transmission Lines live-line replacing strain hard tube process using shifts the method for hard tube mother and drainage thread load, make that wire jumper insulator is stressed to be transferred on the female elevator system bearing tool of hard tube, remove wire jumper insulator two ends tie point thereby reach, change smoothly the object of wire jumper insulator.
[brief description of the drawings]
Fig. 1 is the fixing schematic diagram of transmission rope in the female wire jumper insulator of provide ± 800kV of preferred embodiment of the present invention UHVDC Transmission Lines live-line replacing strain hard tube technique.
Fig. 2 is the hanging basket pulley block system layout schematic diagram in the female wire jumper insulator of provide ± 800kV of preferred embodiment of the present invention UHVDC Transmission Lines live-line replacing strain hard tube technique.
Fig. 3 A, 3B are respectively female front view and the left view that promotes jig of the hard tube using in technique of the present invention.
Fig. 4 A, 4B, 4C are respectively right view, front view and the vertical view of jig on the strain cross arm using in technique of the present invention.
Fig. 5 is the front view of carrying hard tube mother system of Fig. 3 for using in technique of the present invention.
Fig. 6 is the schematic diagram of the dismounting synthetic insulator in the female wire jumper insulator of provide ± 800kV of preferred embodiment of the present invention UHVDC Transmission Lines live-line replacing strain hard tube technique.
[embodiment]
For understanding better the present invention, below with reference to accompanying drawing and instantiation, invention is described in detail.
± 800kV UHVDC Transmission Lines live line working the personal safety that first need support personnel identical with 500kV live line working, therefore, ± 800kV electric pressure screening clothing, insulated tension pole, that first insulating cord need to do preventative electrical test is qualified, could in the on-the-spot practical operation of live line working, use.Preventative electrical test divides can be divided into 2 kinds:
(1) switching impulse withstand voltage test: test length 6.2m, adopts+250/2500 μ s standard shock wave, applies voltage 1600kV totally 15 times, should be without flashover, without puncturing, without heating;
(2) DC voltage withstand test: test length 6.2m, applies direct voltage 950kV.Pressure-resistant time 5min.Should be without flashover, without puncturing, without heating.
Before live line working, need on-the-spot shaft tower to carry out the inspection of the scene of a crime, judge whether site environment and shaft tower technical parameter meet live line working condition:
(1) ± 800kV UHVDC Transmission Lines strain tower inspection of the scene of a crime need be examined in on-the-spot large small size side span and have or not scissors crossing;
(2) ± 800kV UHVDC Transmission Lines strain tower basal perimeter landform is enough to meet live line working site requirements, and there is position erect-position setting below;
(3) adopt infrared range-measurement system right ± the upper plane of 800kV UHVDC Transmission Lines strain tower cross-arm hanging point place's lower plane and hard tube mother finds range, definite carry hard tube mother system join pole length and hanging basket static line length;
(4) determine hanging basket initial position and assembly pulley fixed position according to hanging basket static line length;
(5) technical staff need check equipotential electrician according to operation shaft tower and enter Live Working Complex Gap in equipotential process and be not less than 6.6 meters.
Must dress ± 800kV of equal potential working personnel live line working private mask clothes (comprising cap, shielding face shield, Jacket-trousers connected clothes, gloves, conductive socks or conductive shoes, lower same).In screening clothing, also should wear fire-retardant underwear, screening clothing performance index should meet the regulation of GB6568-1 and GB6568-2, and shielding face shield shield effectiveness must not be less than 20dB.The each position of screening clothing should connect well, reliable, and the resistance value that uses universal instrument to measure between screening clothing clothing, trousers most distal point must not be greater than 20 Ω.
The female wire jumper insulator of of the present invention ± 800kV UHVDC Transmission Lines live-line replacing strain hard tube process using shifts the method for hard tube mother and drainage thread load, make that wire jumper insulator is stressed to be transferred on the female elevator system bearing tool of hard tube, remove wire jumper insulator two ends tie point thereby reach, change smoothly the object of wire jumper insulator.The female wire jumper replacing insulator of of the present invention ± 800kV UHVDC Transmission Lines live line working strain insulator hard tube technique is specific as follows:
(1) on tower, electrician carries transmission rope and steps on tower, and at cross-arm hanging point, fixing point is accomplished fluently at place, according to shown in Fig. 1, transmission system is installed.
(2) ground electrician, by transmission system, passes to electrician on tower by hanging basket and pulley block system.
(3) on tower, electrician passes in and out equipotential method (as shown in Figure 2) by hanging basket and assembly pulley according to hanging basket method and carries out arranging on tower.
(4) after on tower, electrician checks that pulley block system connection is intact; isopotential electrical work area enters hanging basket; ground electrician controls pulley block system tricing line; make hanging basket taking static line as radius; with the slowly close strain tower hard tube mother of arc track; from female 0.5 meter of of hard tube, use electric potential transferring stick to catch on hard tube mother, enter highfield.Now, equipotential electrician reaches same equipotential with ± 800kV UHVDC Transmission Lines.
(5) ground electrician becomes to carry hard tube mother system (as shown in Figure 5) according to the pole length of joining of inspection of the scene of a crime measurement by jig 400 (as shown in Fig. 4 A, 4B, 4C) assembly and connection on the female lifting of hard tube jig 100 (as shown in Fig. 3 A, 3B), mechanical screw mandrel 200, insulated tension pole 300, strain cross arm, and the length combining should be consistent with prospecting measurement length.In operating procedure, need carry altogether hard tube mother system two covers.
The female jig 100 that promotes of hard tube comprises link plate 110 and mainboard 120, and the two ends of link plate 110 and mainboard 120 are connected by auricle 130 respectively.The centre position of link plate 110 offers hanging hole 112, for being connected with hydraulic screw rod 200.On mainboard 120, be provided with the arcwall face 122 of accommodating hard pipe bus near two ends place.Auricle 130 is provided with bolt 132, for making link plate 110 and mainboard 120 dismantle or assemble.
On strain cross arm, jig 400 comprises installation clamp 410 and hangers 420, and hangers 420 is arranged on the below that clamp 410 is installed, and clamp 410 is installed and is directly provided with hangers 420 reinforcement 430 that is connected the two.The lateral cross that clamp 410 is installed is sleeping U font, for being fastened on the upper hanging point place of strain cross arm.Install on clamp 410 and offer fixing hole, for passing jig on strain cross arm 400 is fixed on to strain cross arm for bolt.On hangers 420, offer hanging hole 422, for being connected with insulated tension pole 300.
(6) ground electrician lifts by crane respectively and carries hard tube mother system, and two isopotential electrical work points will not carried the female jig 100 that promotes of hard tube mother system lower end hard tube and be arranged on hard pipe bus.On tower, electrician is arranged on jig on strain cross arm 400 on the construction hole of strain cross arm.
(7) manage after female elevator system installs, two equipotential electricians tighten up hydraulic screw rod 200 simultaneously, make the female pipe bus uniform stressed promoting in jig 100 of hard tube, by the load transfer on synthetic insulator on the female elevator system of pipe.
(8) refer to Fig. 6, equipotential electrician removes the U-shaped suspension bolt in synthetic insulator lower end, equipotential electrician is a tricing line in synthetic insulator lower end, ground electrician eases out tricing line, makes synthetic insulator by heeling condition, slowly near tower body, finally reach nature plumbness, on equipotential tower, electrician removes the U-shaped suspension bolt in synthetic insulator upper end, and ground electrician controls and transmits rope, and synthetic insulator is at the uniform velocity placed to ground.
(9) ground electrician removes damaged synthetic insulator from transmitting rope, new synthetic insulator is hung over to transmission rope upper, lifts by crane new synthetic insulator to cross-arm-end hanging point place, and on tower, electrician installs U-shaped suspension bolt.Ground electrician tightens up tricing line, and insulator is become to heeling condition from natural plumbness average rate, and equipotential electrician installs the U-shaped suspension bolt of hard tube female end.
(10) equipotential electrician checks after new synthetic insulator stressing conditions, eases out hydraulic screw rod 200, will propose load transfer on hard tube mother system to new synthetic insulator.
(11) equipotential electrician coordinates dismounting to carry hard tube mother system with electrician on tower, and ground electrician will carry hard tube mother system and be restricted and be passed to ground by transmission.
(12) isopotential electrical work area enters hanging basket, and electric potential transferring stick is hooked to hard tube mother, and ground electrician tightens up assembly pulley tricing line, hanging basket is stressed, after electric potential transferring stick is stressed, equipotential electrician eases out electric potential transferring stick, and equipotential electrician at the uniform velocity gets back to cross-arm (earth potential).
(13) on tower, electrician is passed to ground electrician by hanging basket with transmitting rope system, and on tower, electrician checks and on tower, has or not lower tower after legacy.
The female wire jumper insulator of of the present invention ± 800kV UHVDC Transmission Lines live-line replacing strain hard tube process using shifts the method for hard tube mother and drainage thread load, make that wire jumper insulator is stressed to be transferred on the female elevator system bearing tool of hard tube, remove wire jumper insulator two ends tie point thereby reach, change smoothly the object of wire jumper insulator.
The female wire jumper replacing insulator of of the present invention ± 800kV UHVDC Transmission Lines live line working strain insulator hard tube process has following innovation:
First the female wire jumper replacing insulator of, ± 800kV UHVDC Transmission Lines live line working strain insulator hard tube process belongs to first in the whole nation;
Moreover the design and use of carrying the instrument of hard tube mother system belong to first in the whole nation;
Finally, the female wire jumper synthetic insulator of live-line replacing ± 800kV UHVDC Transmission Lines strain insulator hard tube belongs to first in the whole nation.
The above embodiment has only expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (6)
1. the female wire jumper insulator an of ± 800kV UHVDC Transmission Lines live-line replacing strain hard tube technique, comprises the following steps:
Equipotential workman enters equipotential;
The pole length assembly and connection of joining that ground electrician measures according to the inspection of the scene of a crime becomes two covers to carry hard tube mother system;
Ground electrician lifts by crane respectively and carries hard tube mother system, two isopotential electrical work points do not promote jig and are arranged on hard pipe bus female the hard tube of carrying hard tube mother system lower end, and on tower, electrician is arranged on the construction hole of strain cross arm carrying jig on the strain cross arm of hard tube mother system upper end;
Two equipotential electricians tighten up the screw mandrel of carrying in hard tube mother system simultaneously, make the female pipe bus uniform stressed promoting in jig of hard tube, by the load transfer on synthetic insulator on the female elevator system of pipe;
Equipotential electrician removes the U-shaped suspension bolt of synthetic insulator lower end, equipotential electrician is a tricing line in synthetic insulator lower end, ground electrician eases out tricing line and makes synthetic insulator by the slowly close tower body of heeling condition and reach nature plumbness, on equipotential tower, electrician removes the U-shaped suspension bolt of synthetic insulator upper end, and ground electrician controls transmission rope synthetic insulator is at the uniform velocity placed to ground;
Ground electrician removes damaged synthetic insulator from transmitting rope, new synthetic insulator is hung over and transmitted on rope, lift by crane new synthetic insulator to cross-arm-end hanging point place, on tower, electrician installs the U-shaped suspension bolt of new synthetic insulator, ground electrician tightens up tricing line new synthetic insulator is become to heeling condition from natural plumbness, and equipotential electrician installs the U-shaped suspension bolt of hard tube female end;
Equipotential electrician eases out the screw mandrel of carrying in hard tube mother system after checking new synthetic insulator stressing conditions, will propose load transfer on hard tube mother system to new synthetic insulator.
2. the female wire jumper insulator of according to claim 1 ± 800kV UHVDC Transmission Lines live-line replacing strain hard tube technique, it is characterized in that: described in carry hard tube mother system and comprise that hard tube is female and promote jig on jig, screw mandrel, insulated tension pole, strain cross arm, described hard tube is female to be promoted on jig, screw mandrel, insulated tension pole, strain cross arm jig assembly and connection and carries hard tube mother system described in becoming, described in to put forward the length that hard tube mother system combines consistent with prospecting measurement length.
3. the female wire jumper insulator of according to claim 2 ± 800kV UHVDC Transmission Lines live-line replacing strain hard tube technique, it is characterized in that: the female jig that promotes of described hard tube comprises link plate and mainboard, auricle is passed through respectively at the two ends of described link plate and mainboard, the centre position of described link plate offers the hanging hole being connected with described screw mandrel, on described mainboard, be provided with the arcwall face of accommodating hard pipe bus near two ends place, described auricle is provided with the bolt that makes described link plate and mainboard dismounting or assembling.
4. the female wire jumper insulator of according to claim 3 ± 800kV UHVDC Transmission Lines live-line replacing strain hard tube technique, it is characterized in that: on described strain cross arm, jig comprises installation clamp and hangers, described hangers is arranged on the below of described installation clamp, between described installation clamp and hangers, be provided with reinforcement, the lateral cross of described installation clamp is sleeping U font to be fastened on the upper hanging point place of strain cross arm, on described installation clamp, offer for bolt through jig on described strain cross arm is fixed on to the fixing hole on strain cross arm, on described hangers, offer the hanging hole for being connected with described insulated tension pole.
According to described in any one in claim 1 to 4 ± the female wire jumper insulator of 800kV UHVDC Transmission Lines live-line replacing strain hard tube technique, it is characterized in that, described technique is further comprising the steps of:
On tower, electrician carries transmission rope and steps on tower, and at cross-arm hanging point, fixing point is accomplished fluently at place;
Ground electrician passes to electrician on tower by transmission system by hanging basket and pulley block system;
Upper electrician passes in and out equipotential mode by hanging basket and assembly pulley according to hanging basket method and carries out arranging on tower;
Isopotential electrical work area enters hanging basket, and ground electrician controls pulley block system tricing line makes hanging basket taking static line as radius, slowly near strain tower hard pipe bus, and enters highfield using electric potential transferring stick to catch on hard tube mother from 0.5 meter of of hard pipe bus with arc track.
According to described in any one in claim 1 to 4 ± the female wire jumper insulator of 800kV UHVDC Transmission Lines live-line replacing strain hard tube technique, it is characterized in that, described technique is further comprising the steps of:
Equipotential electrician coordinates dismounting to carry hard tube mother system with electrician on tower, ground electrician will carry hard tube mother system and be restricted and be passed to ground by transmission;
Isopotential electrical work area enters hanging basket and electric potential transferring stick is hooked to hard tube mother, and ground electrician tightens up assembly pulley tricing line, and after electric potential transferring stick is stressed, equipotential electrician eases out electric potential transferring stick, and equipotential electrician at the uniform velocity gets back to cross-arm;
On tower, electrician is passed to ground electrician by hanging basket with transmitting rope system, and on tower, electrician checks and on tower, has or not lower tower after legacy.
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 true CN104218493A (en) | 2014-12-17 |
| CN104218493B CN104218493B (en) | 2017-03-01 |
Family
ID=52099742
Family Applications (1)
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104218493B (en) |
Cited By (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 |
| CN108691449A (en) * | 2018-05-29 | 2018-10-23 | 中国电力工程顾问集团西南电力设计院有限公司 | DC fields polar curve outlet structure based on integration 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 |
Cited By (3)
| 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 |
| CN108691449A (en) * | 2018-05-29 | 2018-10-23 | 中国电力工程顾问集团西南电力设计院有限公司 | DC fields polar curve outlet structure based on integration framework |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104218493B (en) | 2017-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2015078279A1 (en) | Live overhaul process for ±800 kv ultra-high voltage dc power transmission line | |
| WO2016023141A1 (en) | Process for live replacement of tension hard-tube bus-bar jumper insulator of +/- 800kv ultra-high-voltage dc transmission line | |
| CN103618249A (en) | technology for electrified overhaul of +-500kV double-circuit direct-current power transmission lines on same tower | |
| CN104505763B (en) | UHVDC Transmission Lines charged for replacement duplex V string composite insulator operational methods | |
| CN104218493B (en) | ± 800kV UHVDC Transmission Lines live-line replacing strain hard tube mother's wire jumper insulator technique | |
| CN103618245B (en) | Electrified strain opening operation method on distribution network | |
| CN103887735A (en) | Linear charged wire lifting device of electric transmission line | |
| CN201466574U (en) | Device for isoelectrically replacing insulator and accessory of iron tower of transmission line | |
| CN104113007A (en) | Operation method for replacing strain insulator of 35kV overhead distribution line in live state | |
| CN104143783B (en) | 10 kV electrified rod erecting insulation lifting appliance and working method with lifting appliance | |
| CN205882560U (en) | Special circulation cord rack device of distribution live working earth potential | |
| CN201440584U (en) | Ground potential replacement device for tension tower insulators and accessories in power transmission line | |
| CN110797795A (en) | Operation method for breaking or connecting 10kV insulated wire line branch line drainage wire by insulating short rod | |
| CN203224580U (en) | An apparatus for zinc oxide lightning arrester energized testing | |
| CN206349693U (en) | Four-bundle conductor splitting type wire lifting device and application structure thereof | |
| CN205846571U (en) | Overhead transmission line telescopic earth lead hanger bar | |
| CN106448952B (en) | Y types strain insulator string and anchor support | |
| CN201584691U (en) | Special tool for 220KV double-circuit common-tower line accessing tension-resistance high-pressure high-electric field | |
| CN105576553A (en) | Sliding insulation horizontal ladder device | |
| JP4425171B2 (en) | Grounding suspension lines for optical communication cables | |
| CN103364656B (en) | A kind of helicopter hot-line work test platform for extra-high-voltage line | |
| CN105591314A (en) | UHV DC transmission line strain tower electrified processing hardware fitting fall-off field operation process | |
| CN104113006A (en) | Operation method for replacing linear rod angle steel cross arm of 35kV overhead distribution line in live state | |
| CN105762702A (en) | Method for replacing L-shaped insulator string of +/-800kV direct current transmission line | |
| CN204154742U (en) | Super High Voltage Live-line Operation insulating safety tools test suspender |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Ying Inventor after: Zhu Haibo Inventor after: Yi Wenkai Inventor after: Ji Bin Inventor after: Peng Lingjun Inventor after: Liu Chuncui Inventor after: Liu Zhengyun Inventor after: Wang Ming Inventor after: Zeng Chen Inventor after: Li Yong Inventor after: Li Jinge Inventor after: Xiong Wenhuan Inventor after: Wang Lei Inventor after: Wang Wenmin Inventor before: Yang Ying Inventor before: Wang Lei Inventor before: Wang Wenmin Inventor before: Zhu Haibo Inventor before: Yi Wenkai Inventor before: Ji Bin Inventor before: Liu Zhengyun Inventor before: Wang Ming Inventor before: Zeng Chen Inventor before: Li Yong Inventor before: Li Jinge Inventor before: Xiong Wenhuan Inventor before: Zhang Min |
|
| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |