CN202678841U - Fast rush repair tower of high-voltage transmission lines - Google Patents
Fast rush repair tower of high-voltage transmission lines Download PDFInfo
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- CN202678841U CN202678841U CN 201220345695 CN201220345695U CN202678841U CN 202678841 U CN202678841 U CN 202678841U CN 201220345695 CN201220345695 CN 201220345695 CN 201220345695 U CN201220345695 U CN 201220345695U CN 202678841 U CN202678841 U CN 202678841U
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- 239000000725 suspension Substances 0.000 claims description 7
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- 239000004020 conductor Substances 0.000 claims description 5
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Abstract
The utility model discloses a fast rush repair tower of high-voltage transmission lines, comprising a tower body (10), wherein the left side of the tower body (10) is sequentially connected with three composite insulators (30) in series which are fixed on the ground with the aid of steel twisted stay wires (20), and a wire pulley (40) is hung below a connection part of the composite insulators; and the right side of the tower body (10) is sequentially connected with two composite insulators (30) which are fixed on the ground with the aid of steel twisted stay wires (20), and a wire pulley is hung below a connection part of the two composite insulators; the composite insulators (30) are perpendicular to the direction along a high-voltage line; the left side, which is close to the top part, of the tower body (10) is provide with an overhead ground wire pulley (50); and the front side and the rear side of the tower body (10) are provided with steel twisted stay wires (20) respectively. The fast rush repair tower disclosed by the utility model replaces a cross arm by the steel twisted stay wire so as to enable the insulators to be fixed, thereby avoiding wind drift effect caused by hanging insulators. Meanwhile, the fast rush repair tower disclosed by the utility model also allows the high-voltage transmission lines to have a plane rotating angle no greater than 30 degrees.
Description
Technical field
The utility model relates under the high pressure overhead power line accident condition, and the emergent repairing tower that can carry out rapid rush-repair and restore electricity temporarily relates in particular to the open side type aluminium alloy emergent repairing tower that is suitable for 220kV and following transmission line, cancels cross-arm.
Background technology
The prior art high-tension line steel tower of speedily carrying out rescue work is divided into open side type tower and queen post tower two large classes, is called the tradition steel tower of speedily carrying out rescue work, and it comprises lightning conducter support, wire cross-arm, insulator, body of the tower and basis.The tradition steel tower of speedily carrying out rescue work has all used cross-arm, and cross-arm is a cantilever beam, and the insulator that is suspended on the cross-arm below can produce the windage yaw effect.In the emergency work construction, should first cross-arm be assembled, after again insulator being installed, just can carry out lead wire and earth wire dispensing work.Thereby increased workload and difficulty, prolonged the repairing time, this one.
Two, the tradition steel tower of speedily carrying out rescue work is had relatively high expectations to the track plan corner, and the track plan corner generally is limited in 5 °.But after the circuit generation wire breaking and tower falling accident, all be to utilize original base to carry out tower erection and the work of dispensing lead wire and earth wire in original corridor, perhaps near the again route selection of original corridor in fact.In the mountain area, if when speedily carrying out rescue work tower near former corridor group is vertical, consider the factors such as the restriction of track plan corner and alive circuit distance to the ground, shaft tower stressing conditions, need stressed larger tower could satisfy the site operation requirement.
The utility model content
The technical problems to be solved in the utility model is to avoid above-mentioned the deficiencies in the prior art part, and provide a kind of high voltage transmission line pipeline quick-speed first-aid repair tower, this emergent repairing tower has been cancelled cross-arm, one end that will be positioned at the insulator of former emergent repairing tower cross-arm below directly is suspended on the strain plate of top of tower, and the other end of insulator is fixed by steel strand backguy and ground, namely, replaced cross-arm with backguy, thereby it is fixed that insulator has been become, the windage yaw effect of having avoided like this suspension insulator to cause, simultaneously, the utility model emergent repairing tower plane corner of also allowing high-tension line to have to be not more than 30 °.
The utility model emergent repairing tower does not use cross-arm, can use the synthetic insulator of different length according to different electric pressures, adjusts the angle of steel strand backguy, to satisfy the requirement of electrical distance.According to different wire types, select backguy, earth anchor, insulator and the column of dimension, to satisfy the requirement of mechanical strength simultaneously.
The technical scheme that the utility model solve the technical problem employing is:
A kind of high voltage transmission line pipeline quick-speed first-aid repair tower is used for temporarily restoring electricity under the ultra-high-tension power transmission line accident condition, comprises the pillar body of the tower that is comprised of each basic segment, especially:
The left side of described body of the tower is serially connected with three synthetic insulators earthward successively along its cat head, these three synthetic insulators that are serially connected by the backguy of steel strand relatively face tilt fix, the below of every adjacent two synthetic insulator junctions hangs a wire coaster, namely, the below of three synthetic insulators hangs two wire coasters altogether, the right side of described body of the tower is serially connected with two synthetic insulators earthward successively along its cat head, these two synthetic insulators that are serially connected equally by the backguy of steel strand relatively face tilt fix, wire coaster of the same suspension in the below of these two synthetic insulator junctions, described each synthetic insulator and high pressure fair line road direction are perpendicular; Place, nearly top, described body of the tower left side is provided with the overhead ground wire coaster;
The both sides, front and back of described body of the tower are respectively equipped with the steel strand backguy for the described body of the tower of balance left and right sides load.
This emergent repairing tower is applicable to 220kV and following transmission line, integral body is single-column aluminium alloy truss formula structure, described basic segment length 6m, cross section is the square of 0.6*0.6m, each basic segment is passed through bolted on connection by ring flange, described body of the tower top is equipped with a tetragonal strain plate, be used for installing the described synthetic insulator of the described body of the tower left and right sides, and the described steel of both sides twists backguy before and after the described body of the tower, described body of the tower waist also is equipped with a tetragonal strain plate, is used for installing the backguy of four steel strands.
This emergent repairing tower allows to be not more than 30 ° high-tension line plane corner.
Be connected with gold utensil between described every two adjacent synthetic insulators, it comprises two U-shaped rings and is connected to towing plate between these two U-shaped rings that described towing plate hangs described wire coaster by the coaster suspension ring.
The diameter of described wire coaster is greater than 15 times of the conductor cross-section diameter, and simultaneously, the diameter of described overhead ground wire coaster is also greater than 15 times of overhead ground wire diameter of section; Described wire coaster adopts aluminium alloy to make, and described ground wire coaster is the steel coaster.
The fiery bent inclination angle of described body of the tower top and waist strain plate is respectively 45 ° and 30 °.
This emergent repairing tower optimum height is 24m, and wire reaches 13m at least to ground level.
Described synthetic insulator is used for support and fixing cord position and guarantees the dielectric strength of wire, and each synthetic insulator is comprised of the insulator of two long 2.5m or 3.0m.
Compare with prior art, the beneficial effect of the utility model high voltage transmission line pipeline quick-speed first-aid repair tower is:
At first, the utility model emergent repairing tower has solved wire windage yaw problem.Because without cross-arm, wire is fixing by two or three synthetic insulators, so, reach the safety requirement as long as solve the wire live part from the body of the tower electrical distance, that is, 110 kilovolts of electrical distances are 1.0 meters, 220 kilovolts of electrical distances are 1.9 meters, certainly leave in addition certain nargin herein, therefore, this tower is stronger than single-column or the queen post tower adaptability of speedily carrying out rescue work.Owing to reduced cross-arm, the time of the vertical the utility model emergent repairing tower of group founds the open side type tower of speedily carrying out rescue work than group and lacks one of three, if compare with the queen post tower of speedily carrying out rescue work, the material-saving that saves time at least is over half.
Secondly, the plane corner that the utility model emergent repairing tower also allows high-tension line to have to be not more than 30 °, when the track plan corner was 30 °, insulator string is actual to the plumb line angle to be 15 °.Like this, emergent repairing tower just can be avoided the circuit corridor that restores electricity, the vertical position of tower group of selecting arbitrarily to speedily carry out rescue work, and distance is less than 300 meters as long as two bases are speedily carried out rescue work between the tower, and wire gauge just can meet the demands during less than LGJ-500/35.
Description of drawings
Fig. 1 is the axonometric projection structural representation of the utility model high voltage transmission line pipeline quick-speed first-aid repair tower;
Fig. 2 is the plan structure schematic diagram of Fig. 1;
Fig. 3 is the partial enlarged drawing of Fig. 2;
Fig. 4 is wire coaster 40, wire 70, towing plate 90, U-shaped ring 100 interconnective structural representations;
Fig. 5 is the interconnective structural representation of overhead ground wire coaster 50, ground wire 80, towing plate 90, U-shaped ring 100.
Embodiment
Below in conjunction with accompanying drawing content of the present utility model is described in further detail.
Referring to figs. 1 through shown in Figure 5, a kind of high voltage transmission line pipeline quick-speed first-aid repair tower, be used for temporarily restoring electricity under the ultra-high-tension power transmission line accident condition, comprise the pillar body of the tower 10 that is formed by each basic segment, the left side of described body of the tower 10 is serially connected with three synthetic insulators 30 earthward successively along its cat head, these three synthetic insulators that are serially connected 30 by the backguy 20 of steel strand relatively face tilt fix, the below of every adjacent synthetic insulator junction hangs a wire coaster 40, namely, the below of three synthetic insulators hangs two wire coasters 40 altogether, the right side of described body of the tower 10 is serially connected with two synthetic insulators 30 earthward successively along its cat head, these two synthetic insulators that are serially connected 30 equally by the backguy 20 of steel strand relatively face tilt fix, wire coaster of the same suspension in the below of these two synthetic insulator junctions, described each synthetic insulator 30 is perpendicular with high pressure fair line road direction; Place, nearly top, described body of the tower 10 left sides is provided with overhead ground wire coaster 50; Set up wire 70 on the described wire coaster 40, and set up ground wire 80 on the described ground wire coaster 50.
The both sides, front and back of described body of the tower 10 are respectively equipped with the steel strand backguy 20 for described body of the tower 10 left and right sides loads of balance.
This emergent repairing tower is applicable to 220kV and following transmission line, integral body is single-column aluminium alloy truss formula structure, described basic segment length 6m, cross section is the square of 0.6*0.6m, each basic segment is passed through bolted on connection by ring flange, described body of the tower 10 tops are equipped with a tetragonal strain plate 60, be used for installing the described synthetic insulator 30 of described body of the tower 10 left and right sides, and the described steel strand backguy 20 of both sides, described body of the tower 10 front and back, described body of the tower 10 waists also are equipped with a tetragonal strain plate 60, are used for installing the backguy 20 of four steel strands.
This emergent repairing tower allows to be not more than 30 ° high-tension line plane corner, reduced the straight line harsh requirement of tower to circuit corner of speedily carrying out rescue work, traditional straight line tower of speedily carrying out rescue work requires the circuit corner must not be greater than 5 °, as long as and the utility model tower of speedily carrying out rescue work is arranged and to be satisfied between tower and the tower distance in the scope that requires, its circuit corner is not more than 30 ° and gets final product, and tower adaptability is stronger so this is speedily carried out rescue work.
Be connected with gold utensil between described every two adjacent synthetic insulators 30, it comprises two U-shaped rings 100 and is connected to these two towing plates 90 between the U-shaped ring 100 that described towing plate 90 hangs described wire coaster 40 by the coaster suspension ring.
The diameter of described wire coaster 40 is greater than 15 times of the conductor cross-section diameter, and simultaneously, the diameter of described overhead ground wire coaster 50 is also greater than 15 times of overhead ground wire diameter of section; Described wire coaster 40 adopts aluminium alloy to make, and described ground wire coaster 50 is the steel coaster.
The fiery bent inclination angle of described body of the tower top and waist strain plate 60 is respectively 45 ° and 30 °, that is to say, described body of the tower top and waist respectively are equipped with a strain plate, the bent inclination angle of strain plate backguy fire, top is 45 °, the bent inclination angle of waist strain plate backguy fire is 30 °, to satisfy the backguy inclination angle of backguy and insulator string, described synthetic insulator and backguy all are contained on the strain plate at body of the tower top, insert on wherein the tower leg the speedily carry out rescue work bottom of tower, this tower leg is formed by 0.5 m steel sole plate and cross supporting bracket electric welding, wherein have the body of the tower notch that inserts and the screw that penetrates bolt in the middle of the supporting bracket, tower leg is bolted fixing with the tower of speedily carrying out rescue work, the steel plate of described notch is comprised of three block plates, and wherein, middle steel plate is low than the both sides steel plate, to make things convenient for body of the tower to insert, when if the emergent repairing tower basis is soft, can consider to adopt sleeper to enlarge the sole plate area, to reduce its basic stress.
This emergent repairing tower body of the tower optimum height is four sections 24m, except synthetic insulator has how much vertical distance to the ground to ground, wire reaches more than the 13m to ground level reality at least, and existing the exhaling of steel tower design of speedily carrying out rescue work claims about the high 9m of being, exhale claim high refer to be positioned at speedily carry out rescue work tower the cross-arm of below to the relative altitude on ground, for 110kV and 220KV circuit, exhaling of the existing tower of speedily carrying out rescue work claims that height is generally more than 9 meters.
Described synthetic insulator 30 is used for support and fixing cord position and guarantees the dielectric strength of wire, and each synthetic insulator 30 is comprised of the insulator of two long 2.5m or 3.0m.
This emergent repairing tower body of the tower adopts aluminium alloy to make, and with respect to the steel body of the tower, its weight can alleviate nearly 1/3rd.Described body of the tower mainly is comprised of a hypomere, some stage casings and an epimere, and hypomere is tapered towards above ground portion, is 600mm towards the cross section length and width of sky part.In the body of the tower, the epimere width is 600mm, each section forms 24m, 30m or 36m differing heights, must support by backguy because this tower is stable.So must have four temporary guys to fix from cat head.While body of the tower mid portion also need be added four temporary guys and fix.
With reference to shown in Figure 1, A, B, C, D are cable quadrant or temporary ground anchor, mainly play fixed tower and are not offset, and avoid robbing the body of the tower disequilibrium.
For avoiding three wires that the body of the tower electrical distance is excessively closely caused short circuit dischange, key is that two wires near body of the tower must satisfy with body of the tower apart from 110kV more than 1.0 meters, and 220kV is more than 2.1 meters.Cat head is because be overhead ground wire, directly ground connection.
The Tata body balance of speedily carrying out rescue work must lean on backguy to solve, and also is to solve by backguy so the left and right sides synthetic insulator is fixed.The front and back side guy is fixation because of fair line road direction purely.
Synthetic insulator can be processed arbitrarily its length, by the adjustment of synthetic insulator processing length and ground backguy, can satisfy live wire the body of the tower distance is reached each voltage gradation to the safe distance of body of the tower.Temporary guy can close dish, namely goes up pull-down line and share a cable quadrant, also can be respectively with cable quadrant and ground are fixed separately.
Synthetic insulator is fixed by line hardware and ground backguy, the overhead transmission line three-phase conducting wire must satisfy live wire to the minimum range of shaft tower body of the tower grounded part, and that synthetic insulator has is lightweight, easy to process, the characteristics that insulation property are good, as can be seen from Figure 2, there are two phase conductors in the speedily carry out rescue work left side of tower, synthetic insulator should have three groups so, and the tower right side of speedily carrying out rescue work only has a phase conductor, synthetic insulator only has two groups so, can guarantee like this to demonstrate,prove wire and all keep insulation property with speedily carry out rescue work tower, backguy.Overhead ground wire is by line hardware and the direct ground connection of body of the tower of speedily carrying out rescue work.
The insulator direction is mutually vertical with high pressure fair line road direction, is one of circuit condition that must satisfy, and on the other hand, three-phase conducting wire and overhead ground wire should be installed in the both sides of emergent repairing tower cross line direction.
The backguy that is used for the body of the tower balance is fixed with metal parts of pull wire UT shaped cable clamp and steel strand wire and ground backguy exactly, and equally, the synthetic insulator end has individual hanging hole, and also available UT shaped cable clamp and steel strand wire and ground backguy are fixed.
Charged wire is fixed by the gold utensil between two synthetic insulators and aluminium matter coaster, because synthetic insulator and ground fixed by steel strand wire, its insulator string has avoided the prior art tower of speedily carrying out rescue work to cause tower size shortcoming bigger than normal, baroque because of windage yaw.
So-called fiery bent inclination angle is exactly with 45 ° of strain plate bent angle decurvations or 30 °, because insulator backguy or the fair line trackside backguy of body of the tower top are 45 ° to the ground angle, and the waist backguy over the ground angle about about 30 °, consider over the ground angle of backguy, so actual conditions will be satisfied in the bent inclination angle of strain plate fire as far as possible, top strain plate and waist strain plate inclination angle are respectively 45 degree and 30 degree.
As calculated, it is LGJ-500/35 that above-mentioned emergent repairing tower embodiment is applicable to wire gauge, and substance is 1642kg/km; The overhead ground wire specification is 1 19 structure galvanized strand wiress; specification is φ 9.0mm; its substance is 41.11kg/km; sectional area is 48.32mm2; or the OPGW fiber optic cables that are complementary of weight with it; during by six sections 36m tower heights; determine that this tower service condition is that span under the vertical load is not more than 500m; horizontal wind load span is 330m, if the overhead ground wire shielding angle can not be considered in winter construction, if summer construction; can consider that the overhead ground wire shielding angle is about 30 °; because the probability that winter construction thunderstorm day occurs is seldom, and the summer construction possibility of circuit of will considering to be struck by lightning, so will consider the shielding angle of overhead ground wire; the top of tower of speedily carrying out rescue work in case of necessity also will add a hyphen load; strengthening the overhead ground wire shielding angle, for the tower that prevents from speedily carrying out rescue work is struck by lightning, also can lay perfect grounding system.
Described body of the tower adopts the aluminium alloy extrusions segmentation to form, and every section 6m connects by ring flange between every section, described ring flange is welded by four blocks of angle steel, also is welded with gusset on its angle steel, to strengthen support, be drilled with the connecting hole of connecting bolt between the gusset, connect with the M16 bolt between the ring flange.
Synthetic insulator is to support and fixing cord position and guarantee that wire has suitable dielectric strength in shaft tower, is convenient transportation and storage, and its length is about 2.5m and 3.0m.Consider its electrical distance, synthetic insulator can two be combined into the synthetic insulator that a string oblique distance is 5m to 6m, thereby guarantees that wire vertical range and horizontal geometric projector distance satisfy the requirement of circuit wire spacing and vertical range.Synthetic insulator is the insulator that closely grows up about ten years, it has substituted porcelain and the glass insulator that present power transmission sequence generally uses, be characterized in good insulation preformance, lightweight, and can decide according to the height of transmission line electric pressure its insulated lengths, for example, low-voltage insulator length can select to lack the synthetic insulator of some, and high-tension insulator length can be selected longer synthetic insulator.
The temporary steel strand backguy part of burying on ground may be soil or rock, for racing against time, if earth part, the part of can fast backguy being buried scrapes out long 1m, wide 0.4m, and then the heatable adobe sleeping platform of high 2m imbeds the composite type cable quadrant with distaff, part is rock if backguy is buried, can water a back cut diameter 0.2m, lower port diameter 0.4m, the concrete earth anchor with distaff of the degree of depth 0.5.
Overhead ground wire of the utility model emergent repairing tower left side carrying, the vertical load of two wires, the vertical load of a wire of right side carrying.Because the both sides vertical load is different, the stable complete of this tower fixed by whole body of the tower upper strata and middle level backguy.As can be seen from Figure 1, this tower allows certain track plan corner.
The maximum characteristics of this tower are to have substituted the existing general band cross-arm tower of speedily carrying out rescue work, and by backguy synthetic insulator oblique pull to ground are fixed, and as can be seen from Figure 1, the backguy fixing point is respectively A, B, C, D place.The utility model emergent repairing tower solves the problem of the distance of wire live part and body of the tower, and the one, the degree of tightness of control ground temporary guy, the 2nd, the length of increasing synthetic insulator.When backguy when angle is 45 ° over the ground, synthetic insulator and body of the tower angle can be considered 30 ° so, thereby adjustment lays the first stone to synthetic insulator.
Claims (8)
1. a high voltage transmission line pipeline quick-speed first-aid repair tower is used for temporarily restoring electricity under the ultra-high-tension power transmission line accident condition, comprises the pillar body of the tower (10) that is comprised of each basic segment, it is characterized in that:
The left side of described body of the tower (10) is serially connected with three synthetic insulators (30) earthward successively along its cat head, these three synthetic insulators that are serially connected (30) by steel strand backguy (20) relatively face tilt fix, the below of every adjacent synthetic insulator junction hangs a wire coaster (40), namely, the below of three synthetic insulators hangs two wire coasters (40) altogether, the right side of described body of the tower (10) is serially connected with two synthetic insulators (30) earthward successively along its cat head, these two synthetic insulators that are serially connected (30) equally by steel strand backguy (20) relatively face tilt fix, wire coaster of the same suspension in the below of these two synthetic insulator junctions, described each synthetic insulator (30) is perpendicular with high pressure fair line road direction; Place, nearly top, described body of the tower (10) left side is provided with overhead ground wire coaster (50);
The both sides, front and back of described body of the tower (10) are respectively equipped with the steel strand backguy (20) for the described body of the tower of balance (10) left and right sides load.
2. high voltage transmission line pipeline quick-speed first-aid repair tower according to claim 1, it is characterized in that: this emergent repairing tower is applicable to 220kV and following transmission line, integral body is single-column aluminium alloy truss formula structure, described basic segment length 6m, cross section is the square of 0.6*0.6m, each basic segment is passed through bolted on connection by ring flange, described body of the tower (10) top is equipped with a tetragonal strain plate (60), be used for installing the described synthetic insulator (30) of described body of the tower (10) left and right sides, and the described steel of both sides twists backguy (20) before and after the described body of the tower (10), described body of the tower (10) waist also is equipped with a tetragonal strain plate (60), is used for installing the backguy (20) of four steel strands.
3. high voltage transmission line pipeline quick-speed first-aid repair tower according to claim 1, it is characterized in that: this emergent repairing tower allows to be not more than 30 ° high-tension line plane corner, and the insulator string inclination angle is high-tension line plane corner half.
4. high voltage transmission line pipeline quick-speed first-aid repair tower according to claim 1, it is characterized in that: be connected with gold utensil between described every adjacent two synthetic insulators (30), it comprises two U-shaped rings (100) and is connected to towing plate (90) between these two U-shaped rings (100) that described towing plate (90) hangs described wire coaster (40) by the coaster suspension ring.
5. high voltage transmission line pipeline quick-speed first-aid repair tower according to claim 1, it is characterized in that: the diameter of described wire coaster (40) is greater than 15 times of the conductor cross-section diameter, simultaneously, the diameter of described overhead ground wire coaster (50) is also greater than 15 times of overhead ground wire diameter of section; Described wire coaster (40) adopts aluminium alloy to make, and described ground wire coaster (50) is the steel coaster.
6. high voltage transmission line pipeline quick-speed first-aid repair tower according to claim 2, it is characterized in that: the fiery bent inclination angle of described body of the tower top and waist strain plate (60) is respectively 45 ° and 30 °.
7. high voltage transmission line pipeline quick-speed first-aid repair tower according to claim 2 is characterized in that, this emergent repairing tower height is 24m, and wire reaches 13m at least to ground level.
8. high voltage transmission line pipeline quick-speed first-aid repair tower according to claim 1, it is characterized in that: described synthetic insulator (30) is used for support and fixing cord position and guarantees the dielectric strength of wire, and each synthetic insulator (30) is comprised of the insulator of two long 2.5m or 3.0m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220345695 CN202678841U (en) | 2012-07-17 | 2012-07-17 | Fast rush repair tower of high-voltage transmission lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220345695 CN202678841U (en) | 2012-07-17 | 2012-07-17 | Fast rush repair tower of high-voltage transmission lines |
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| Publication Number | Publication Date |
|---|---|
| CN202678841U true CN202678841U (en) | 2013-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220345695 Expired - Lifetime CN202678841U (en) | 2012-07-17 | 2012-07-17 | Fast rush repair tower of high-voltage transmission lines |
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| Country | Link |
|---|---|
| CN (1) | CN202678841U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066523A (en) * | 2012-07-17 | 2013-04-24 | 重庆市电力公司检修分公司 | High-tension transmission line quick repair tower |
| CN109559584A (en) * | 2018-11-28 | 2019-04-02 | 国网辽宁省电力有限公司丹东供电公司 | Multifunctional mobile distribution training platform |
-
2012
- 2012-07-17 CN CN 201220345695 patent/CN202678841U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066523A (en) * | 2012-07-17 | 2013-04-24 | 重庆市电力公司检修分公司 | High-tension transmission line quick repair tower |
| CN103066523B (en) * | 2012-07-17 | 2015-07-01 | 重庆市电力公司检修分公司 | High-tension transmission line quick repair tower |
| CN109559584A (en) * | 2018-11-28 | 2019-04-02 | 国网辽宁省电力有限公司丹东供电公司 | Multifunctional mobile distribution training platform |
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