CN107069562B - Replacing insulator under electrified method and load transfer device - Google Patents
Replacing insulator under electrified method and load transfer device Download PDFInfo
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- CN107069562B CN107069562B CN201710507463.0A CN201710507463A CN107069562B CN 107069562 B CN107069562 B CN 107069562B CN 201710507463 A CN201710507463 A CN 201710507463A CN 107069562 B CN107069562 B CN 107069562B
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- insulator
- insulation
- operating personnel
- rigid support
- bearing bracket
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- 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
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Abstract
The present invention relates to electric power maintenance technical fields, it is related to replacing insulator under electrified method and load transfer device, replacing insulator under electrified method: the first operating personnel is pushed at insulator hanging point along the upper plane of cross-arm in the tower body cross-arm rigid support that will insulate and adjusts the position of device, the promotion coaster that two connect insulation ropes and wire hook is respectively installed in the pulley stile of coaster tumble card by the second operating personnel by operating stick, wire hook is caught on into conducting wire, tension is transferred on lifting device by lifting conducting wire, insulator lifting apparatus increases, the pin that insulator is connect with ball-eye takes out, insulator on insulator lifting apparatus is moved to tower body side along fixture bearing bracket by the second operating personnel, then old insulator is transmitted to ground, the safety of operation is improved by this operational method；Load transfer device includes that insulation rigid support, fixture bearing bracket and provision for disengagement, load transfer device have above-mentioned advantage compared with prior art.
Description
Technical field
The present invention relates to electric power maintenance technical fields, in particular to replacing insulator under electrified method and load transfer
Device.
Background technique
Currently, charged for replacement 35kV linear insulator mostly uses greatly earth potential working method to carry out, there are two types of tools used,
One is being flexible operation, conveniently the advantages of being replaced, replaced with insulating block group with insulating block group, the disadvantage is that pulley blocks metal
Part is too long, can occupy air gap distance.The advantages of another kind is cross-arm specific purpose tool, cross-arm specific purpose tool is fixture installation
On horizontal, screw rod exceeds cross-arm, will not occupy air gap distance, the disadvantage is that special mould clamp is limited by cross-arm structure, in ship type
Cross-arm both sides cannot be mounted on stress point position directly above when mutually using.
But this operational method, operating personnel is required in the appropriate location of insulator hitch point, and a transmitting is installed
Rope, it is on the insulator that transmission rope bolt is good with hand, transmission rope is tightened with ground staff, operating personnel directly takes de- and installation
Insulator, but because 35kV safe distance is limited, directly with hand operation, there are biggish risks by operating personnel.
Therefore it provides the replacing insulator under electrified method and load transfer device of a kind of safe ready replacement insulator become
Those skilled in the art's important technological problems to be solved.
Summary of the invention
The first object of the present invention is to provide a kind of replacing insulator under electrified method, be charged in the prior art more with alleviating
Change the unsafe technical problem of insulator.
A kind of replacing insulator under electrified method provided by the invention, comprising the following steps:
First operating personnel is pushed at insulator hanging point simultaneously in the tower body cross-arm rigid support that will insulate along the upper plane of cross-arm
Adjust the position of device；
Second operating personnel is pacified the promotion coaster that two connect insulation ropes and wire hook by operating stick respectively
It is attached in the pulley stile of coaster tumble card, the wire hook is caught on into conducting wire, ground operation personnel is hauled, and lifting is led
Tension is transferred on lifting device by line, makes insulator relaxation；
Second operating personnel is taken out by the pin that insulator is connect by operating stick with conducting wire, and insulator and conducting wire are taken off
From；
First operating personnel, the second operating personnel mutual cooperation mounting fixture bearing bracket in the insulation rigid support
And provision for disengagement；
First operating personnel operate screw rod adjustment provision for disengagement height, cooperation the second operating personnel will insulate fork plate be inserted into
The lower section of cross-arm side first insulator；
First operating personnel operates screw rod and rotates lifting device, and insulator lifting apparatus is increased；
Second operating personnel is taken out by the pin that insulator is connect by operating stick with ball-eye, and insulator is detached from；
Insulator on insulator lifting apparatus is moved to tower body side along fixture bearing bracket by the second operating personnel, then
Old insulator is transmitted to ground.
Further, operating personnel climbs up tower and needs first to carry out detecting whether to meet to the insulator needed replacing with detection bar
Operating condition.
Further, ground operation personnel by transmission rope by fixture bearing bracket, insulation rigid support, promoted coaster and
Operating stick is promoted to tower body cross-arm.
Further, ground operation personnel is promoted provision for disengagement described in insulator to cross-arm position by coaster.
Further, the coaster tumble card is stuck in right above insulator hanging point.
Further, the insulation rigid support is fixed on cross-arm close to one end of tower body.
Further, described insulation load sliding rail one end is hung in the inboard rail of the fixture bearing bracket, the other end
On the insulation cross bar for hanging over the insulation rigid support.
The second object of the present invention is to provide a kind of load transfer device, be insulated with alleviating charged for replacement in the prior art
The unsafe technical problem of son.
A kind of load transfer device provided by the invention, including insulation rigid support, fixture bearing bracket and provision for disengagement；
The fixture bearing bracket and the provision for disengagement are connect with the insulation rigid support.
Further, described insulation rigid support one end is provided with coaster tumble card, is provided on the coaster tumble card
For placing the pulley stile of coaster.
Further, the provision for disengagement includes lifting device and insulation fork plate；
The insulation fork plate is connect by the lifting device with the fixture bearing bracket.
The utility model has the advantages that
A kind of replacing insulator under electrified method provided by the invention, comprising the following steps: the first operating personnel is in tower body cross
Insulation rigid support is pushed at insulator hanging point along the upper plane of cross-arm and is adjusted the position of device by load, and the second operating personnel is logical
Cross the pulley stile that the promotion coaster that two connect insulation ropes and wire hook is respectively installed to coaster tumble card by operating stick
It is interior, wire hook is caught on into conducting wire, ground operation personnel is hauled, and lifts conducting wire, tension is transferred on lifting device, is made
Insulator relaxation；The pin taking-up that insulator is connect by the second operating personnel by operating stick with conducting wire, and by insulator and conducting wire
It is detached from, the first operating personnel, the second operating personnel cooperate in mounting fixture bearing bracket and disassembly in rigid support of insulating
Device；First operating personnel operate screw rod adjustment provision for disengagement height, cooperation the second operating personnel will insulate fork plate be inserted into cross
The lower section of side first insulator is carried on a shoulder pole, the first operating personnel operates screw rod and rotates lifting device, by insulator lifting apparatus liter
Height, the second operating personnel is taken out by the pin that insulator is connect by operating stick with ball-eye, and insulator is detached from；Second makees
Insulator on insulator lifting apparatus is moved to tower body side along fixture bearing bracket by industry personnel, then transmits old insulator
To ground；Replacing insulator under electrified may be implemented by this operational method, reduce the workload of operating personnel, and use this side
Method can reduce the frequency of exposure of operating personnel and conducting wire, significantly improve the safety of operation.
A kind of load transfer device provided by the invention, including insulation rigid support, fixture bearing bracket and provision for disengagement；
Fixture bearing bracket and provision for disengagement are connect with insulation rigid support, and load transfer device has above-mentioned compared with prior art
Advantage, it is no longer superfluous herein to chat.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic diagram that load transfer device provided in an embodiment of the present invention is installed and used；
Fig. 2 is the structural schematic diagram of load transfer device provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of insulation fork plate in Fig. 2；
Fig. 4 is the relative position schematic diagram of coaster tumble card and insulation rigid support in Fig. 1.
Icon: 100- insulation rigid support；101- coaster tumble card；102- pulley stile；200- fixture bearing bracket；
300- provision for disengagement；301- lifting device；302- insulation fork plate；400- insulator；500- cross-arm；600- tower body；
700- load transfer device.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
The present invention is described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.
With reference to Fig. 1-Fig. 4:
A kind of replacing insulator under electrified method provided by the invention, comprising the following steps: the first operating personnel is in tower body 600
Insulation rigid support 100 is pushed at 400 hanging point of insulator along the upper plane of cross-arm 500 and adjusts the position of device by cross-arm 500；
The promotion coaster that two connect insulation ropes and wire hook is respectively installed to coaster by operating stick by the second operating personnel
In the pulley stile 102 of tumble card 101, wire hook is caught on into conducting wire, ground operation personnel is hauled, and conducting wire is lifted, and will be opened
Power is transferred on lifting device, makes the relaxation of insulator 400；Second operating personnel is connected insulator 400 and conducting wire by operating stick
The pin connect takes out, and insulator 400 and conducting wire are detached from；First operating personnel, the second operating personnel cooperate steady in insulation
Mounting fixture bearing bracket 200 and provision for disengagement 300 on clamped frame 100；First operating personnel operates screw rod and adjusts provision for disengagement
The fork plate 302 that insulate is inserted into the lower section of 500 side first insulator 400 of cross-arm by 300 height, the second operating personnel of cooperation；
First operating personnel operates screw rod and rotates lifting device 301, and 400 lifting apparatus of insulator is increased；Second operating personnel passes through
The pin that insulator 400 is connect by operating stick with ball-eye takes out, and insulator 400 is detached from；Second operating personnel will insulate
Insulator 400 on sub 400 lifting apparatus moves to 600 side of tower body along fixture bearing bracket 200, then by old insulator 400
It is transmitted to ground.
A kind of replacing insulator under electrified method provided by the invention, comprising the following steps: the first operating personnel is in tower body 600
Insulation rigid support 100 is pushed at 400 hanging point of insulator along the upper plane of cross-arm 500 and is adjusted the position of device by cross-arm 500,
The promotion coaster that two connect insulation ropes and wire hook is respectively installed to coaster by operating stick by the second operating personnel
In the pulley stile 102 of tumble card 101, wire hook is caught on into conducting wire, ground operation personnel is hauled, and conducting wire is lifted, and will be opened
Power is transferred on lifting device, makes the relaxation of insulator 400；Second operating personnel is connected insulator 400 and conducting wire by operating stick
The pin connect takes out, and insulator 400 and conducting wire are detached from, and the first operating personnel, the second operating personnel cooperate steady in insulation
Mounting fixture bearing bracket 200 and provision for disengagement 300 on clamped frame 100；First operating personnel operates screw rod and adjusts provision for disengagement
The fork plate 302 that insulate is inserted into the lower section of 500 side first insulator 400 of cross-arm by 300 height, the second operating personnel of cooperation,
First operating personnel operates screw rod and rotates lifting device 301, and 400 lifting apparatus of insulator is increased, and the second operating personnel passes through
The pin that insulator 400 is connect by operating stick with ball-eye takes out, and insulator 400 is detached from；Second operating personnel will insulate
Insulator 400 on sub 400 lifting apparatus moves to 600 side of tower body along fixture bearing bracket 200, then by old insulator 400
It is transmitted to ground；Replacing insulator under electrified 400 may be implemented by this operational method, reduce the workload of operating personnel, and
The frequency of exposure that operating personnel and conducting wire can be reduced using the method significantly improves the safety of operation.
Using the method, farther out apart from electrical body, operating personnel's activity space is larger for the job position of operating personnel, can
Guarantee the safety of operating personnel and line facility.
Moreover, it is smaller to weather requirement using the method, it, will not be by big because operating personnel rests on always home
Wind effect.
In the optinal plan of the present embodiment, operating personnel climbs up tower and needs first with detection bar to the insulator 400 needed replacing
It carries out detecting whether to meet operating condition.
Before carrying out operation, operating personnel is needed first to climb up tower, then using detection bar to the insulator 400 needed replacing
It is detected, if insulator 400 is not charged to meet operating condition, if insulator 400 charges, other preparations need to be carried out.
The safety for improving operating personnel, avoids the generation of contingency.
In the optinal plan of the present embodiment, ground operation personnel is firm by fixture bearing bracket 200, insulation by transmission rope
Bracket 100, promotion coaster and operating stick are promoted to 600 cross-arm 500 of tower body.
When replacing insulator 400, being generally not easy to build platform, (place is unsuitable or 600 height of tower body for operating personnel
It is excessively high), it is therefore desirable to operating personnel climbs up tower, while when carrying out replacement insulator 400, needs using to a large amount of tools, but
Operating personnel itself can not carry so more tools, it is therefore desirable to which ground operation personnel passes through transmission rope for fixture bearing bracket
200, rigid support 100, promotion coaster and the operating stick of insulating are promoted to 600 cross-arm 500 of tower body.
In the optinal plan of the present embodiment, ground operation personnel is arrived 400 provision for disengagement 300 of insulator promotion by coaster
500 position of cross-arm.
400 provision for disengagement 300 of insulator is promoted by coaster and arrives 500 position of cross-arm by ground operation personnel, because of disassembly
Device 300 is larger, therefore promotes provision for disengagement 300 using coaster, mitigates the workload of ground operation personnel.
In the optinal plan of the present embodiment, coaster tumble card 101 is stuck in right above 400 hanging point of insulator.
After operating personnel receives insulation rigid support 100, needs to be adjusted insulation rigid support 100, make to set
It sets the vehicle tumble card in insulation 100 front end of rigid support to be stuck in right above 400 hanging point of insulator, to facilitate follow-up work to carry out.
In the optinal plan of the present embodiment, insulation rigid support 100 is fixed on cross-arm 500 close to one end of tower body 600.
After operating personnel adjusts insulation rigid support 100, the close one end of rigid support 100 that needs to insulate is fixed
On cross-arm 500, the stability of insulation rigid support 100 is improved.
In the optinal plan of the present embodiment, insulation load sliding rail one end is hung in the inboard rail of fixture bearing bracket 200,
The other end is hung on the insulation cross bar of insulation rigid support 100.
In the standby installation of the enterprising luggage of tower body 600, need to insulate operating personnel load sliding rail and insulation rigid support 100
It links together, specific load sliding rail one end of insulating is hung in the inboard rail of fixture bearing bracket 200, and the other end is hung over absolutely
On the insulation cross bar of edge rigid support 100, staff is facilitated to carry out dismantlement work after installing insulation load sliding rail.
A kind of load transfer device 700 provided by the invention, including insulation rigid support 100,200 and of fixture bearing bracket
Provision for disengagement 300；Fixture bearing bracket 200 and provision for disengagement 300 are connect with insulation rigid support 100.
A kind of load transfer device 700 provided by the invention, including insulation rigid support 100,200 and of fixture bearing bracket
300 fixture bearing bracket 200 of provision for disengagement and provision for disengagement 300 are connect with insulation rigid support 100, load transfer device
700 have above-mentioned advantage compared with prior art, no longer superfluous herein to chat.
When in use, the rigid support 100 that insulate is pushed into the front end of 600 cross-arm 500 of tower body, then adjusts the firm branch of insulation
Frame 100, and the rigid support 100 that will insulate is fixed close to one end of electric pole and cross-arm 500, wherein insulation rigid support 100 can
To guarantee the stabilization of structure under the bearing capacity of maximum capacity, it is ensured that trouble free service.
Moreover, the weight of conducting wire and insulator 400 can be undertaken in maneuvering load transfer device 700, other portions are reduced
The addition of part reduces the workload and work step of operating personnel, improves working efficiency, moreover, reducing support component (reduces behaviour
Make process), it can also improve security performance.
Wherein, when in use insulation rigid support 100 mainly will receive with insulate 100 upper surface of rigid support it is vertical under
Pulling force, therefore insulation rigid support 100 is designed to ladder shape, it can effectively improve the carrying energy of insulation rigid support 100
Power, and increase the bearing area of insulation rigid support 100, improve stability.
In the optinal plan of the present embodiment, insulation 100 one end of rigid support is provided with coaster tumble card 101, coaster overturning
The pulley stile 102 for placing coaster is provided on card 101.
Coaster tumble card 101 is connect by apparatus for suspension support rod with insulation rigid support 100, and coaster tumble card 101 is utilized
It can be convenient lifting lead wire, reduce the physical demands of operator.
In the optinal plan of the present embodiment, provision for disengagement 300 includes lifting device 301 and insulation fork plate 302；Insulate fork plate
302 are connect by lifting device 301 with fixture bearing bracket 200.
Insulation insertion plate is connect by fixture bearing bracket 200 with insulation rigid support 100, and load transfer tool utilizes insulation
Plate promotes insulator 400, carries insulator 400 by insulation insertion plate, this moiety by weight is passed to insulation rigid support
100, facilitate user installation, replacement insulator 400.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (9)
1. a kind of replacing insulator under electrified method, which comprises the following steps:
First operating personnel along the upper plane of cross-arm is pushed at insulator hanging point and adjusts in the tower body cross-arm rigid support that will insulate
The position of device；
The promotion coaster that two connect insulation ropes and wire hook is respectively installed to by the second operating personnel by operating stick
In the pulley stile of coaster tumble card, the wire hook is caught on into conducting wire, ground operation personnel is hauled, and conducting wire is lifted, will
Tension is transferred on lifting device, makes insulator relaxation；
Second operating personnel is taken out by the pin that insulator is connect by operating stick with conducting wire, and insulator and conducting wire are detached from；
First operating personnel, the second operating personnel cooperate mounting fixture bearing bracket and to tear open in the insulation rigid support
Handler, the fixture bearing bracket are connect by the load sliding rail that insulate with the exhausted rigid support, the provision for disengagement and institute
It states fixture bearing bracket to be fixedly connected, the provision for disengagement includes that lifting device and the insulation for lifting the insulator are inserted
Plate, the insulation insertion plate are connect by the lifting device with the fixture bearing bracket；
First operating personnel operate screw rod adjustment provision for disengagement height, cooperation the second operating personnel will insulate fork plate be inserted into cross-arm
The lower section of side first insulator；
First operating personnel operates screw rod and rotates lifting device, and insulator lifting apparatus is increased；
Second operating personnel is taken out by the pin that insulator is connect by operating stick with ball-eye, and insulator is detached from；
Insulator on insulator lifting apparatus is moved to tower body side along fixture bearing bracket by the second operating personnel, then will be old
Insulator is transmitted to ground.
2. replacing insulator under electrified method according to claim 1, which is characterized in that operating personnel climbs up tower need to be first with inspection
Measuring staff carries out detecting whether to meet operating condition to the insulator needed replacing.
3. replacing insulator under electrified method according to claim 1, which is characterized in that ground operation personnel passes through transmission rope
Fixture bearing bracket, insulation rigid support, promotion coaster and operating stick are promoted to tower body cross-arm.
4. according to replacing insulator under electrified method described in claim 1, which is characterized in that ground operation personnel passes through coaster for institute
Provision for disengagement is stated to be promoted to cross-arm position.
5. replacing insulator under electrified method according to claim 1, which is characterized in that the coaster tumble card is stuck in insulation
Right above sub- hanging point.
6. replacing insulator under electrified method according to claim 1, which is characterized in that the insulation rigid support is close to tower
One end of body is fixed on cross-arm.
7. replacing insulator under electrified method according to claim 1, which is characterized in that insulation load sliding rail one end hangs over institute
In the inboard rail for stating fixture bearing bracket, the other end is hung on the insulation cross bar of the insulation rigid support.
8. a kind of load transfer device, which is characterized in that including insulation rigid support, fixture bearing bracket and provision for disengagement；
The fixture bearing bracket and the provision for disengagement are connect with the insulation rigid support；
The provision for disengagement includes lifting device and insulation fork plate；
The insulation fork plate is connect by the lifting device with the fixture bearing bracket.
9. load transfer device according to claim 8, which is characterized in that described insulation rigid support one end is provided with cunning
Vehicle tumble card is provided with the pulley stile for placing coaster on the coaster tumble card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710507463.0A CN107069562B (en) | 2017-06-28 | 2017-06-28 | Replacing insulator under electrified method and load transfer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710507463.0A CN107069562B (en) | 2017-06-28 | 2017-06-28 | Replacing insulator under electrified method and load transfer device |
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| CN107069562A CN107069562A (en) | 2017-08-18 |
| CN107069562B true CN107069562B (en) | 2019-03-08 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108539363B (en) * | 2018-05-25 | 2020-02-04 | 云南电网有限责任公司电力科学研究院 | Communication antenna lifting device sharing electric power tower |
| CN109876324B (en) * | 2019-04-02 | 2023-10-13 | 国网陕西省电力公司咸阳供电公司 | Transformer substation's insulator climbing protection device |
| CN110932168B (en) * | 2019-11-18 | 2021-05-04 | 浙江省送变电工程有限公司 | Method for replacing strain insulator of extra-high voltage direct current full tower |
| CN218415531U (en) * | 2021-10-28 | 2023-01-31 | 云南电网有限责任公司曲靖供电局 | Insulator dismounting and transferring tool |
| KR102472682B1 (en) * | 2022-01-03 | 2022-12-01 | (주)국일 | Overhead Line Fixing Equipment |
| CN115189273A (en) * | 2022-06-21 | 2022-10-14 | 国网河北省电力有限公司景县供电分公司 | Upright bottle changer |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20080024852A (en) * | 2006-09-15 | 2008-03-19 | 한국전기공사협회 | Live-line changing method of the damaged spacer damper for 765kv double circuit transmission lines |
| CN201466567U (en) * | 2009-06-24 | 2010-05-12 | 河南省电力公司三门峡供电公司 | Insulator replacement tool |
| CN201556885U (en) * | 2009-12-01 | 2010-08-18 | 江西宜春供电公司 | Tool for single hanging and twin suspension insulator string capable of solving problem of earth potential electrified transmission line replacement |
| CN101969183B (en) * | 2010-09-16 | 2013-04-03 | 四川电力送变电建设公司 | Saddle-type line-lifting device and construction method thereof |
| CN102882153B (en) * | 2012-08-30 | 2015-09-30 | 国家电网公司 | Phase replacing insulator string method in charged for replacement circuit many times towers |
| CN104201613B (en) * | 2014-09-23 | 2016-03-16 | 国家电网公司 | Far-end operation changes device and the application process thereof of straight line list insulator string |
| CN105119203B (en) * | 2015-10-19 | 2017-11-10 | 国家电网公司 | A kind of distribution synthesis hotline maintenance carries the Line tool |
| CN106602465A (en) * | 2017-01-17 | 2017-04-26 | 广西电网有限责任公司贺州供电局 | Power transmission line tangent tower first insulator replacement tool |
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