CN102966301A - Live working sliding board - Google Patents
Live working sliding board Download PDFInfo
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- CN102966301A CN102966301A CN201210456287XA CN201210456287A CN102966301A CN 102966301 A CN102966301 A CN 102966301A CN 201210456287X A CN201210456287X A CN 201210456287XA CN 201210456287 A CN201210456287 A CN 201210456287A CN 102966301 A CN102966301 A CN 102966301A
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- insulating
- livewire work
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Abstract
The invention discloses a live working sliding board. The live working sliding board comprises an insulation ladder which is erected between a pole tower and a lead wire; the insulation ladder comprises two main posts which are arranged in parallel, and a plurality of insulation crosspieces, the end parts of which are fixedly connected with the main posts through penetrating bolts A, are uniformly arranged between the two main posts; the end part of the main post at the lead wire side of the insulation ladder is provided with a hook latch for hanging the lead wire, and the middle part of the main pos is in sliding fit with a sliding table for positioning; and the pole tower side of the insulation ladder is also provided with a steering gear which is used for being clamped with a cross arm of the pole tower, and one end of the steering gear is fixedly arranged on a steel tube which is arranged between the two main posts through a penetrating bolt. The live working sliding board is safe, reliable and convenient to use, can meet the requirement of operating personnel for live working when the cross arm and the live wire are at different angles, and greatly increases the safety and high efficiency of live working.
Description
Technical field
The present invention relates to the instrument that use in a kind of power construction field, refer in particular to a kind of livewire work ladder.
Background technology
At present, the electric load demand continues to increase substantially, and the user has proposed requirements at the higher level to quality, power off time, number of times and the reliability etc. of electric power, launch the charging construction operation, reduce power failure range and power off time, guarantee to satisfy the user to the demand of electric power, become the demand for development of field of power transmission.
Livewire work refers to a kind of operational method of not having a power failure and overhauling, test on the high-tension electricity construction equipment.Livewire work can be divided three classes according to the relation between human body and the electrical body: equipotential live line work, earth potential working and medial potential working.Wherein, equipotential live line work is that the operating personnel passes through electrical connection, makes the current potential of own health rise to charged position current potential, and with suitably isolation and directly live part is carried out operation of different potentials on every side.At present, when 110kV and Above Transmission Lines shaft tower carry out equipotential live line work, adopt insulating ladder or insulated flexible ladder mode to enter operation field, the ladder two ends are connected with the steel tower cross-arm with wire respectively more, and the operating personnel stands in operation on insulating ladder or the insulated flexible ladder; But because the impact of the factors such as tower, wire and cross-arm relative position, still there is following potential safety hazard in this dual mode:
1) safe distance is not enough, for example: the 110kV cat-head transmission tower, wherein phase conductor is apart from body of the tower 1918mm, the limit phase conductor also only has 2000mm apart from body of the tower, operating personnel on the insulating ladder itself is again with short circuit 600mm, operating personnel short circuit 300mm more also in moving process, according to livewire work regulation in " State Grid Corporation of China's electric power safety working regulation " (power circuit part) " when electric pressure is 110kV; the livewire work minimum safe distance must not be less than 1000mm; the minimum combination gap must not be less than 1200mm ", obviously, when this tower carries out livewire work, if according to the routine work method, will be difficult to guarantee normally carrying out of livewire work;
2) it is large to return difficulty, and for example: because insulator string is sagging, it is larger that insulating ladder sets up the rear gradient on the anchor support, the flat terraced gradient even can surpass 30 and spend behind the upper ladder of operating personnel, and it is larger to cause operating personnel to return after hours difficulty;
3) insulating ladder shaft tower side is fixedly connected with cross-arm, and its installation is had relatively high expectations to cross-arm shape, angle;
4) safety factor is poor, because terraced body smoother, stability is bad, and the inconvenience of operation erect-position brings certain impact for high-altitude working safety.
Publication number is the patent of invention of CN 102383719A, a kind of insulation sliding board of using for the power transmission lines overhauling operation is disclosed, comprise terraced body, sliding seat and slide hook, the ladder body is the main body of carrying, sliding seat is installed in ladder with it and can slides along terraced body, be provided with the locking member that can cooperate with terraced body locking on the sliding seat, the slide hook is arranged on terraced body front end, and the slide hook is used for terraced body is hung at wire.Although can overcome above-mentioned part shortcoming, but because insulation sliding board adopts suspending way, and be fixedly connected with adopting flexible snap close (such as rope) being connected of shaft tower end, so the situation of horizontal hunting appears in insulation sliding board easily, has certain danger, and the cross-arm setting position is had certain requirement, and rope connects and also has wear problem in addition, and certain insecurity is arranged.
Summary of the invention
The technical issues that need to address of the present invention provide a kind of safe, reliable, the slide of convenient working personnel livewire work in the time of can satisfying cross-arm and wire and present different angles.
For solving the problems of the technologies described above, the technical solution used in the present invention is a kind of livewire work slide, comprise the insulating ladder that is erected between shaft tower and wire, described insulating ladder comprises two principal posts that be arranged in parallel, spares between two principal posts to be furnished with the insulation crosspiece that some radicles are fixedly connected with principal post by punching bolt A; The principal post end of described insulating ladder side of wire was arranges one and is used for having contact with of hook wire, and the middle part of principal post is slidingly matched and is useful on the slide unit of erect-position; The shaft tower side of described insulating ladder also arranges a steering gear that is used for the clamping cross arm of tower, and an end of described steering gear is fixedly installed on by punching bolt C and is arranged on the steel pipe between two principal posts.
The further improvement of concrete structure of the present invention is: described steering gear comprises the otic placode on the steel pipe that is fixedly installed on insulating ladder shaft tower side, the outer end of otic placode is by the hinged ∏ type connector of pivot pin A, and the blind end of ∏ type connector is by the jig of pivot pin B hinged with the cross arm of tower clamping.
The further improvement of concrete structure of the present invention is: the contacted end face of the movable bayonet of described jig and cross arm of tower is zigzag.
The further improvement of concrete structure of the present invention is: described slide unit comprises the insulating slab that is arranged on the principal post top by the biside plate that is positioned at the principal post outside, described each side plate near the end face of principal post by rotating shaft respectively be provided with four be slidingly matched with principal post and with principal post about along the pulley of clamping.
The further improvement of concrete structure of the present invention is: described side plate is fixedly installed a draw ring frame near on the side of shaft tower side, and the top of draw ring frame is fixedly connected with and is useful on is the draw ring of safety rope.
The further improvement of concrete structure of the present invention is: be provided with on the described insulating slab be used to the insulation drag-line that slide unit is slided along principal post, one end of described insulation drag-line is fixedly connected on insulating slab one side, and the other end of insulation drag-line passes the opposite side that is fixed on insulating slab behind the steel pipe of the fixed pulley that is arranged on the insulating ladder side of wire was, insulating ladder cross-arm side successively; Described fixed pulley is arranged between two principal posts by the punching bolt B.
The further improvement of concrete structure of the present invention is: be set with insulation tube on the described punching bolt B.
The further improvement of concrete structure of the present invention is: the edge of described fixed pulley is provided with the baffle plate that comes off be used to the drag-line that prevents from insulating.
Owing to adopted technique scheme, the obtained technological progress of the present invention is: the invention provides a kind of safe, reliable, the slide of convenient working personnel livewire work in the time of can satisfying cross-arm and wire and present different angles.The equipotential live line work personnel are sitting in and carry out work on the slide unit, eliminated the defective of insulating ladder erect-position shakiness, and only take the required space of human body self during operation, avoid in the moving process because the too much space that the forward lean layback causes by the short circuit problem, enough live-working safety distances have been guaranteed, for operating personnel's personal safety provides guarantee.
The present invention arranges fixed pulley at the slide front end, fixed pulley, insulation drag-line and slide unit form the closed-loop path, the hot line job personnel control the advancing, retreat finish of slide unit by the earth potential support staff by the pulling insulation ropes into and out of the highfield process, the livewire work personnel need not oneself operation, not only save livewire work personnel muscle power and also improved operating efficiency, for preventing from insulating drag-line slippage and fixing fixed pulley position, be provided with baffle plate on the fixed pulley, also be provided with insulation tube on the punching bolt B on fixed pulley both sides, further guaranteed the trouble-free operation of slide unit.
The link frame that slide unit of the present invention top is provided with to fasten the safety belt can tie up to safety belt on this link frame during livewire work personnel operation, has strengthened live-working safety.
Steering gear otic placode of the present invention and ∏ type connector, all adopt pivot pin hinged between ∏ type connector and jig, so that steering gear can all-direction rotation, and then so that livewire work slide shaft tower side is installed the impact that can not be subjected to cross-arm size, angle of living in, it is horizontal that slide can remain, further strengthened the convenience that the livewire work slide uses; Steering gear jig movable bayonet end face is designed to zigzag, has increased the steadiness behind the jig clamping cross arm of tower.Simultaneously, steering gear so that the anti-wear performance of steering gear is high, has also obtained very big prolongation owing to adopt metal material to realize fixing between livewire work slide and shaft tower with snap fit application life.
Description of drawings
Fig. 1 is master's TV structure schematic diagram of the present invention;
Fig. 2 is plan structure schematic diagram of the present invention;
Fig. 3 is side-looking structural representation of the present invention;
Fig. 4 is the structural representation of steering gear of the present invention.
Among the figure: 1, insulating ladder, 1-1, principal post, 1-2, insulation crosspiece, 1-3, punching bolt A, 1-4, fixed pulley, 1-5, insulation tube, 1-6, baffle plate, 1-7, punching bolt B, 1-8, have contact with 1-9, steel pipe, 1-10, punching bolt C, 2, steering gear, 2-1, otic placode, 2-2, pivot pin A, 2-3, ∏ type connector, 2-4, jig, 2-4-1, movable bayonet, 2-5, pivot pin B, 3, slide unit, 3-1, side plate, 3-2, insulating slab, 3-3, pulley, 3-4, rotating shaft, 3-5, link frame, 3-5-1, draw ring, 4, the insulation drag-line, 5, cross arm of tower.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is explained in further detail.
A kind of livewire work slide comprises the insulating ladder 1 that is erected between shaft tower and equipotential wire, and insulating ladder 1 is the carrying main body; Insulating ladder 1 top is provided with slide unit 3, and slide unit 3 can slide along the principal post 1-1 of insulating ladder 1; The principal post 1-1 end of insulating ladder 1 side of wire was is provided with has contact with 1-8, has contact with 1-8 and is used for the hook wire; Insulating ladder 1 shaft tower side is provided with steering gear 2, and steering gear 2 is used for clamping cross arm of tower 5.Have contact with 1-8 and steering gear 2 is fixed on the livewire work slide between wire and the shaft tower, having contact with 1-8 and steering gear 2 is hard points of whole livewire work slide.
Insulating ladder 1 comprises two principal post 1-1 that be arranged in parallel, spares between two principal post 1-1 to be furnished with some eradication edge crosspiece 1-2, and the two ends of insulation crosspiece 1-2 are fixedly connected with principal post 1-1 by punching bolt A1-3 respectively.The length of principal post 1-1 determines according to electric pressure, and in the present embodiment, the livewire work slide is applied under the equipotential live line work condition that electric pressure is 110kV, and principal post 1-1 length is 2.4m; Principal post 1-1 cross section is oval, major diameter 60mm, minor axis 30mm, wall thickness 5mm.Embed one every 400mm between two principal post 1-1 and thoroughly do away with edge crosspiece 1-2, the long 300mm of insulation crosspiece 1-2, diameter 30mm, wall thickness 5mm.
Insulating ladder 1 arranges a punching bolt B 1-7 near an end of wire, the two ends of punching bolt B 1-7 are individually fixed on two principal post 1-1, the middle part of punching bolt B 1-7 arranges a fixed pulley 1-4, is set with insulation tube 1-5 on the punching bolt B 1-7 of fixed pulley 1-4 both sides.Insulating ladder 1 arranges a steel pipe 1-9 near an end of shaft tower, and steel pipe 1-9 is arranged between two principal post 1-1 by punching bolt C1-10, and the two ends of punching bolt C1-10 are individually fixed on two principal post 1-1.The internal diameter of steel pipe 1-9 is that 15mm, wall thickness are 5mm in the present embodiment.
Side plate 3-1 is fixedly installed a draw ring frame 3-5 near on the side of cross arm of tower 5 sides, and the top of draw ring frame 3-5 arranges a draw ring 3-5-1, and draw ring 3-5-1 is used for hanging safety rope or safety belt.One insulation drag-line 4 is set on the insulating slab 3-2, insulation drag-line 4 is used for slide unit 3 is slided along principal post 1-1, one end of insulation drag-line 4 is fixedly connected on insulating slab 3-2 one side, the other end passes the opposite side that is fixed on insulating slab 3-2 behind the steel pipe 1-9 of the fixed pulley 1-4 that is arranged on insulating ladder 1 side of wire was, insulating ladder 1 shaft tower side successively, and the earth potential support staff can control advancing of slide unit 3 by pulling insulation drag-line 4 or retreat.The diameter of insulation drag-line 4 is 12mm in the present embodiment, and the pass between its length and insulating ladder 1 length is: (insulating ladder 1 length+2m) * 2m.
The edge of fixed pulley 1-4 arranges a baffle plate 1-6 in the present embodiment, is used for preventing that the insulation drag-line 4 on the fixed pulley 1-4 from coming off at drawing process.
When the present invention used, at first the 1-8 that has contact with livewire work slide side of wire was was hooked on the wire, and the steering gear 2 of shaft tower side is connected on the cross arm of tower 5 of shaft tower, and slide unit 2 is placed the shaft tower side; Then the equipotential live line work personnel sit on the slide unit 2, simultaneously safety belt are tied up in the draw ring 3-5-1 of link frame 3-5; After ready, earth potential less important work personnel on the shaft tower spur insulation drag-line 4, traction slide unit 2 advances to job position, after operation finishes, earth potential less important work personnel spur insulation ropes 4, traction slide unit 2 retreats to the shaft tower side, and slide unit 2 arrives shaft tower, the end of job under the equipotential live line work personnel.
Claims (8)
1. livewire work slide, comprise the insulating ladder (1) that is erected between shaft tower and wire, described insulating ladder (1) comprises two principal posts that be arranged in parallel (1-1), evenly between two principal posts (1-1) is furnished with some radicles by punching bolt A(1-3) the insulation crosspiece (1-2) that is fixedly connected with principal post (1-1); Principal post (1-1) end of described insulating ladder (1) side of wire was arrange one be used for the hook wire have contact with (1-8), the slide unit (3) that the middle part of principal post (1-1) is slidingly matched and is useful on erect-position; It is characterized in that: the shaft tower side of described insulating ladder (1) also arranges a steering gear (2) for clamping cross arm of tower (5), and an end of described steering gear (2) is fixedly installed on by punching bolt C(1-10) be arranged on the steel pipe (1-9) between two principal posts (1-1).
2. livewire work slide according to claim 1, it is characterized in that: described steering gear (2) comprises the otic placode (2-1) on the steel pipe (1-9) that is fixedly installed on insulating ladder (1) shaft tower side, the outer end of otic placode (2-1) is by pivot pin A(2-2) a hinged ∏ type connector (2-3), the blind end of ∏ type connector (2-3) is by pivot pin B(2-5) hinged one with the jig (2-4) of cross arm of tower (5) clamping.
3. livewire work slide according to claim 2 is characterized in that: the movable bayonet (2-4-1) of described jig (2-4) is zigzag with the contacted end face of cross arm of tower (5).
4. livewire work slide according to claim 3, it is characterized in that: described slide unit (3) comprises the insulating slab (3-2) that is arranged on principal post (1-1) top by the biside plate (3-1) that is positioned at principal post (1-1) outside, described each side plate (3-1) near the end face of principal post (1-1) by rotating shaft (3-4) respectively be provided with four be slidingly matched with principal post (1-1) and with principal post (1-1) up and down along the pulley (3-3) of clamping.
5. livewire work slide according to claim 4, it is characterized in that: described side plate (3-1) is fixedly installed a draw ring frame (3-5) near on the side of shaft tower side, and the top of draw ring frame (3-5) is fixedly connected with and is useful on is the draw ring (3-5-1) of safety rope.
6. livewire work slide according to claim 4, it is characterized in that: be provided with on the described insulating slab (3-2) be used to the insulation drag-line (4) that slide unit (3) is slided along principal post (1-1), one end of described insulation drag-line (4) is fixedly connected on insulating slab (3-2) side, and the other end of insulation drag-line passes the opposite side that is fixed on insulating slab (3-2) behind the steel pipe (1-9) of the fixed pulley (1-4) that is arranged on insulating ladder (1) side of wire was, insulating ladder (1) cross-arm side successively; Described fixed pulley (1-4) is arranged between two principal posts (1-1) by punching bolt B (1-7).
7. livewire work slide according to claim 6 is characterized in that: be set with insulation tube (1-5) on the described punching bolt B (1-7).
8. livewire work slide according to claim 6 is characterized in that: the edge of described fixed pulley (1-4) is provided with the baffle plate (1-6) that comes off be used to the drag-line (4) that prevents from insulating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210456287.XA CN102966301B (en) | 2012-11-14 | 2012-11-14 | Live working sliding board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210456287.XA CN102966301B (en) | 2012-11-14 | 2012-11-14 | Live working sliding board |
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| Publication Number | Publication Date |
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| CN102966301A true CN102966301A (en) | 2013-03-13 |
| CN102966301B CN102966301B (en) | 2014-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210456287.XA Active CN102966301B (en) | 2012-11-14 | 2012-11-14 | Live working sliding board |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358513A (en) * | 2014-10-16 | 2015-02-18 | 国家电网公司 | Insulating ladder provided with pulley sitting stool |
| CN104505767A (en) * | 2014-12-10 | 2015-04-08 | 国网浙江省电力公司台州供电公司 | Operating tool for electrified connection of insulated overhead conductor |
| CN105322463A (en) * | 2015-11-19 | 2016-02-10 | 国家电网公司 | Insulated outlet extending horizontal ladder for tension string on ultra-high voltage transmission line |
| CN105576553A (en) * | 2014-11-11 | 2016-05-11 | 云南电网公司带电作业分公司 | Sliding insulation horizontal ladder device |
| CN109638715A (en) * | 2018-12-26 | 2019-04-16 | 国网福建省电力有限公司宁德供电公司 | The hard ladder of the mobile insulation of hot line maintenance and its working method |
| CN110047349A (en) * | 2019-05-24 | 2019-07-23 | 国网浙江省电力有限公司培训中心 | Hot line maintenance mixes training system and method |
| CN110649504A (en) * | 2019-07-22 | 2020-01-03 | 国网浙江省电力有限公司湖州供电公司 | Insulating flat ladder of 500kV strain insulator shaft tower live working |
| CN112392393A (en) * | 2020-11-13 | 2021-02-23 | 贵州电网有限责任公司 | Novel change special ladder of strain insulator pole insulator |
| CN112864937A (en) * | 2019-11-27 | 2021-05-28 | 国网山东省电力公司滨州供电公司 | Device for rush-repair tower |
| CN109638715B (en) * | 2018-12-26 | 2024-05-10 | 国网福建省电力有限公司宁德供电公司 | Movable insulating hard ladder for live working of power transmission line and working method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030127288A1 (en) * | 2002-01-07 | 2003-07-10 | Ed Darryl K. | Helicopter lineman's ladder and method for energized powerline repair |
| JP2007278024A (en) * | 2006-04-11 | 2007-10-25 | Chugoku Electric Power Co Inc:The | Rope ladder for ascending/descending electric pole |
| CN202039764U (en) * | 2011-03-15 | 2011-11-16 | 辽宁省电力有限公司阜新供电公司 | Insulating ladder for live working of transformer substation combined buses |
| CN102383719A (en) * | 2011-11-28 | 2012-03-21 | 江苏省电力公司无锡供电公司 | Insulation sliding board |
| CN102412521A (en) * | 2010-09-26 | 2012-04-11 | 河南省电力公司焦作供电公司 | Live working equipment for high-voltage power transmission line |
| CN202370422U (en) * | 2011-07-26 | 2012-08-08 | 天津市东方先科石油机械有限公司 | Automatic extension ladder device of working platform |
| CN202990822U (en) * | 2012-11-14 | 2013-06-12 | 邯郸供电公司 | Hot-line work sliding board |
-
2012
- 2012-11-14 CN CN201210456287.XA patent/CN102966301B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030127288A1 (en) * | 2002-01-07 | 2003-07-10 | Ed Darryl K. | Helicopter lineman's ladder and method for energized powerline repair |
| JP2007278024A (en) * | 2006-04-11 | 2007-10-25 | Chugoku Electric Power Co Inc:The | Rope ladder for ascending/descending electric pole |
| CN102412521A (en) * | 2010-09-26 | 2012-04-11 | 河南省电力公司焦作供电公司 | Live working equipment for high-voltage power transmission line |
| CN202039764U (en) * | 2011-03-15 | 2011-11-16 | 辽宁省电力有限公司阜新供电公司 | Insulating ladder for live working of transformer substation combined buses |
| CN202370422U (en) * | 2011-07-26 | 2012-08-08 | 天津市东方先科石油机械有限公司 | Automatic extension ladder device of working platform |
| CN102383719A (en) * | 2011-11-28 | 2012-03-21 | 江苏省电力公司无锡供电公司 | Insulation sliding board |
| CN202990822U (en) * | 2012-11-14 | 2013-06-12 | 邯郸供电公司 | Hot-line work sliding board |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358513A (en) * | 2014-10-16 | 2015-02-18 | 国家电网公司 | Insulating ladder provided with pulley sitting stool |
| CN105576553A (en) * | 2014-11-11 | 2016-05-11 | 云南电网公司带电作业分公司 | Sliding insulation horizontal ladder device |
| CN104505767A (en) * | 2014-12-10 | 2015-04-08 | 国网浙江省电力公司台州供电公司 | Operating tool for electrified connection of insulated overhead conductor |
| CN104505767B (en) * | 2014-12-10 | 2017-01-04 | 国网浙江省电力公司台州供电公司 | Charged the continuing of suspended insulated guide wire uses operation instrument |
| CN105322463A (en) * | 2015-11-19 | 2016-02-10 | 国家电网公司 | Insulated outlet extending horizontal ladder for tension string on ultra-high voltage transmission line |
| CN109638715A (en) * | 2018-12-26 | 2019-04-16 | 国网福建省电力有限公司宁德供电公司 | The hard ladder of the mobile insulation of hot line maintenance and its working method |
| CN109638715B (en) * | 2018-12-26 | 2024-05-10 | 国网福建省电力有限公司宁德供电公司 | Movable insulating hard ladder for live working of power transmission line and working method thereof |
| CN110047349A (en) * | 2019-05-24 | 2019-07-23 | 国网浙江省电力有限公司培训中心 | Hot line maintenance mixes training system and method |
| CN110649504A (en) * | 2019-07-22 | 2020-01-03 | 国网浙江省电力有限公司湖州供电公司 | Insulating flat ladder of 500kV strain insulator shaft tower live working |
| CN112864937A (en) * | 2019-11-27 | 2021-05-28 | 国网山东省电力公司滨州供电公司 | Device for rush-repair tower |
| CN112392393A (en) * | 2020-11-13 | 2021-02-23 | 贵州电网有限责任公司 | Novel change special ladder of strain insulator pole insulator |
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| CN102966301B (en) | 2014-08-06 |
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