CN109386158B - Large-corner single-loop gate-type drilling tower for crossing - Google Patents
Large-corner single-loop gate-type drilling tower for crossing Download PDFInfo
- Publication number
- CN109386158B CN109386158B CN201811435426.4A CN201811435426A CN109386158B CN 109386158 B CN109386158 B CN 109386158B CN 201811435426 A CN201811435426 A CN 201811435426A CN 109386158 B CN109386158 B CN 109386158B
- Authority
- CN
- China
- Prior art keywords
- cross arm
- tower
- hanging point
- middle cross
- jumper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 26
- 239000004020 conductor Substances 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 230000009191 jumping Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 10
- 229910052742 iron Inorganic materials 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/08—Structures made of specified materials of metal
- E04H12/10—Truss-like structures
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/22—Sockets or holders for poles or posts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/24—Cross arms
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The invention discloses a large-corner single-loop portal drilling crossing tower for crossing, which comprises a middle cross arm, wherein two ends of the middle cross arm are respectively and symmetrically connected with an edge cross arm, upper planes at two ends of the middle cross arm are respectively and symmetrically connected with an outwardly inclined ground wire frame, the tail ends of the ground wire frame are inwards bent and are provided with ground wire hanging points, and lower planes at two ends of the middle cross arm are respectively and symmetrically connected with upright posts; the middle cross arm is provided with a middle phase conductor hanging point on the lower plane of the middle part, the top end of the side cross arm is provided with a side phase conductor hanging point, and a first jumper wire hanging point is arranged in the side phase conductor hanging point. The whole tower that bores is the door-type framework, compares with traditional cup type or dry iron tower, and structural style is succinct, and iron tower height is lower, simultaneously, bores the three-phase wire of tower and arranges on same horizontal plane, and in addition bores the tower and do not erect the ground wire beyond, has further reduced and has bored the height of tower beyond, need not to carry out the power failure operation to current circuit when being under construction, has the advantage that the construction is quick, application scope is wide, has obvious economic benefits.
Description
Technical Field
The invention belongs to the field of power transmission line engineering, and relates to a large-corner single-loop gate-type crossing tower for crossing.
Background
In recent years, with the continuous development of power grid construction, the voltage level of a power transmission line is continuously improved; in the vicinity of outgoing lines of a power plant, incoming and outgoing lines of a transformer substation and areas with dense urban population and high electricity demand, the situation that transmission lines of different voltage levels and different loops are mutually staggered often occurs.
In the power transmission line engineering, when two lines are crossed, the problem is generally solved by adopting two modes of high-span and drilling. The high-span mode is generally used in the case of lower voltage level of the established line, lower tower height and higher voltage level of the line to be crossed. The over-drilling mode is generally used in the case that the voltage level of an established line is higher and the voltage level of an intended over-drilling line is lower. For urban periphery and line corridor crowded areas, if a high-span mode is adopted for construction when the crossing problem of the lines is solved, the crossed lines need to be subjected to power failure treatment, so that certain difficulty is brought to engineering construction; moreover, in engineering areas with limited high requirements, the high-span mode cannot be adopted.
If the construction is carried out in a drilling mode, a wine glass tower is generally adopted as a drilling tower at present, but the minimum calling height and the number of angles limit the drilling point position of the line, and the construction cannot be effectively and reasonably carried out under the condition of limiting the sag height of the established line.
Disclosure of Invention
The object of the present invention is to overcome the above-mentioned drawbacks of the prior art by providing a large-turn angle single-loop portal drilling tower for crossover.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme:
the large-corner single-loop portal type drilling crossing tower for crossing comprises a middle cross arm, wherein two ends of the middle cross arm are respectively and symmetrically connected with an edge cross arm, upper planes at two ends of the middle cross arm are respectively and symmetrically connected with an outwardly inclined ground wire frame, the tail ends of the ground wire frame are inwards bent and provided with ground wire hanging points, and lower planes at two ends of the middle cross arm are respectively and symmetrically connected with upright posts; the middle cross arm is provided with a middle phase conductor hanging point on the lower plane of the middle part, the top end of the side cross arm is provided with a side phase conductor hanging point, and a first jumper wire hanging point is arranged in the side phase conductor hanging point.
The invention is further improved in that:
the first jumper hanging point is 0-40 degrees.
One end of one of the side cross arms, which is far away from the middle cross arm, is provided with a wire jumping frame; the second jumper wire hanging point is arranged on the jumper frame and is a tension-resistant corner jumper wire hanging point of 40-90 degrees.
Two V-string jumper hanging points are arranged on the front side and the rear side of a node plate connected with the main column of the middle cross arm, and an I-string jumper hanging hole is formed in the side cross arm main material.
The middle cross arm is a rectangular cross arm, and the width of the cross arm is equal in length and width; the main material on the top surface of the middle cross arm is broken at the middle part, and the broken part is connected by adopting wrap angle steel; the main material on the bottom surface of the middle cross arm is arranged in a through length manner; the four peripheral surface inclined materials of the middle cross arm are arranged in a crossed mode.
The side cross arms are triangular cross arms, are arranged in a through length mode and are connected with the main column and the middle cross arm at the bottom through the node plates, and the front side inclined materials and the rear side inclined materials of the side cross arms are arranged according to a triangle; the top surface and the bottom surface inclined materials are arranged in a crossing manner; the side cross arm is pre-arched according to 1/100 of the length of the side cross arm.
The upright posts are of a lattice type steel structure, and the two upright posts are symmetrically arranged about the central position of the middle cross arm; the upper part of the upright post is of a square upright post structure, and the length and the width of the section are the same as those of the middle cross arm; the lower part of the upright post expands towards the ground according to the gradient of 0.12.
The drilling tower further comprises tower legs, the upright posts are connected with the tower legs through angle steel wrapping, and the tower legs are connected with the foundation through foundation bolts; each upright is supported by four tower legs.
The end parts of the side cross arms connected with the middle cross arms and the hanging points of the middle phase wires are provided with vertical separating surfaces.
Foot nails are arranged on one side of the ground wire frame, the upright posts and the tower legs, which is far away from the wires.
Compared with the prior art, the invention has the following beneficial effects:
two symmetrical upright posts are arranged at two ends of the middle cross arm, side cross arms are symmetrically arranged at two ends of the middle cross arm respectively, and ground wire frames which incline outwards are symmetrically arranged on upper planes of two ends of the middle cross arm respectively. The whole drilling tower is in a door-shaped structure, compared with a traditional cup-shaped or dry iron tower, the structure is simple, the height of the iron tower is low, the power failure operation on the existing line is not needed during construction, and the drilling tower has the advantages of being quick in construction and wide in application range and has obvious economic benefits. Meanwhile, the tail end of the ground wire frame is inwards bent and provided with a ground wire hanging point, a middle phase wire hanging point is arranged on the lower plane of the middle part of the middle cross arm, and the top end of the side cross arm is provided with a side phase wire hanging point. Therefore, three-phase wires of the drilling tower are arranged on the same horizontal plane, and the drilling tower is not erected with a ground wire, so that the height of the tower is further reduced, and the application range of the drilling tower is further improved.
Furthermore, a first jumper wire hanging point of 0-40 degrees is arranged in the side phase lead hanging point, and a second jumper wire hanging point of 40-90 degrees with a tension-resistant angle is arranged on the jumper wire rack, so that the limitation of the angle degree of the line angle at the drilling point is avoided, and the applicability is improved.
Furthermore, the jumper string adopts an I-V-I type design, two V-string jumper hanging points are arranged on the front side and the rear side of the node plate connected with the main column of the middle cross arm, and an I jumper hanging hole is arranged on the side cross arm main material, so that the construction time is shortened, the construction materials are saved, and the production cost is reduced.
Further, the upper part of the upright post is of a square straight post structure, the length and the width of the section are the same as those of the middle cross arm, the lower part of the upright post is expanded to the ground according to the gradient of 0.12, and the stability of the whole drilling tower is improved.
Further, vertical separating surfaces are arranged at the end parts of the side cross arms connected with the middle cross arms and at the hanging points of the middle phase wires, so that the integral rigidity of the drilling tower is enhanced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the stud arrangement of the present invention;
fig. 3 is a schematic view of the ground pin arrangement of the present invention.
Wherein: 1-middle cross arms; 2-side cross arms; 3-an earth wire frame; 4-stand columns; 5-wire jumping frames; 6-tower legs; 7-ground wire hanging points; 8-hanging points of the medium-phase lead; 9-hanging points of the side phase wires; 10-a second jumper hanging point; 11-V string jumper hanging points.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The invention is described in further detail below with reference to the attached drawing figures:
referring to fig. 1, the large-corner single-circuit portal type drilling crossing tower which is crossed comprises a middle cross arm 1, wherein two ends of the middle cross arm 1 are respectively and symmetrically connected with an edge cross arm 2, upper planes at two ends of the middle cross arm 1 are respectively and symmetrically connected with an outwards inclined ground wire frame 3, and lower planes at two ends of the middle cross arm 1 are respectively and symmetrically connected with an upright post 4; wherein the top ends of the 1 side cross arms 2 are provided with wire jumping frames 5; both end heads and the middle part of the lower plane of the middle cross arm 1 are provided with wire hanging points and are matched with construction holes. The middle cross arm 1 is provided with a middle phase conductor hanging point 8 on the lower plane at the middle part, the lower plane at the top end of the side cross arm 2 is provided with a side phase conductor hanging point 9, a first jumper wire hanging point is arranged in the side phase conductor hanging point 9, and the first jumper wire hanging point is 0-40 degrees jumper wire hanging point. The second jumper hanging point 10 is arranged on the jumper frame 5, and the second jumper hanging point 10 is a tension-resistant corner jumper hanging point of 40-90 degrees.
The three-phase wires of the drilling tower are horizontally arranged, the jumper wire strings are designed in an I-V-I mode, and the jumper wire strings are horizontally arranged. The maximum height of the wire hanging point from the ground can be 13m or 14m, or other terrain-compliant heights. Two V-string jumper hanging points 11 are arranged on the front side and the rear side of a node plate connected with the main column 4 of the middle cross arm 1, and I-string jumper hanging holes are formed in the main material of the side cross arm 2.
The middle cross arm 1 is a rectangular cross arm, the width of the cross arm is equal, the top surface main material is broken at the middle part, the top surface main material is connected by adopting wrap angle steel, the bottom surface main material is arranged in a through length way, and four peripheral surface inclined materials are arranged in a crossing way.
The two side cross arms 2 are triangular cross arms, the side cross arms 2 are arranged in a through length mode and are connected with the main column and the middle cross arm 1 at the bottom through node plates, the front side and the rear side of the side cross arms 2 are arranged in a triangular mode, and the top surface and the bottom surface are arranged in a crossed mode. The side cross arm 2 is pre-arched by 1/100 of the whole cantilever length of the side cross arm 2.
The upright posts 4 are of a lattice type steel structure, and the two upright posts 4 are symmetrically arranged about the central position of the middle cross arm 1; the upper part of the upright post 4 is of a square straight post structure, and the length and the width of the section are the same as those of the middle cross arm 1; the lower part of the upright post 4 expands towards the ground according to the gradient of 0.12 and is connected with the tower leg 6 through the angle steel. Each upright 4 is supported by 4 tower legs; the upright posts 4 and the tower legs 6 are connected with the foundation through foundation bolts or tower foot plates, the tower legs 6 are equal-length legs, and the center distance between the two upright posts 4 is 11.6m.
The end parts of the side cross arms connected with the middle cross arms and the wire hanging points in the middle of the middle cross arms are provided with vertical separating surfaces, so that the overall rigidity of the iron tower is improved.
Referring to fig. 2 and 3, the pins 12 are installed upwards from 1.5 m from the ground, the distance is 400-450 mm, and the positions of the pins can be properly adjusted during processing and lofting, wherein the pins 12 of the left upright post 4 are arranged in the direction of the tower legs 6 at the rear left side of the wire advancing direction and extend upwards from the direction to the top ends of the upright posts 4; the pins of the right column 4 are provided on the tower legs 6 in front of the right side of the wire advancing direction, and extend upward from this direction to the top ends of the columns 4. The arrangement positions of the pins 12 on the two ground wire frames 3 are consistent with the arrangement positions of the pins 12 on the two upright posts 4, and are arranged at positions far away from the wires. Unlike the arrangement of the pins 12 on the upright 4, only one pin 12 is arranged on the ground frame 3 in one position, whereas two pins 12 perpendicular to each other are arranged on the upright 4 in one position.
The above is only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited by this, and any modification made on the basis of the technical scheme according to the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (5)
1. The large-corner single-loop portal crossing tower for crossing is characterized by comprising a middle cross arm (1), wherein two ends of the middle cross arm (1) are respectively and symmetrically connected with an edge cross arm (2), upper planes at two ends of the middle cross arm (1) are respectively and symmetrically connected with an outwards inclined ground wire frame (3), the tail end of the ground wire frame (3) is inwards bent and provided with a ground wire hanging point (7), and lower planes at two ends of the middle cross arm (1) are respectively and symmetrically connected with an upright post (4); a middle phase conductor hanging point (8) is arranged on the lower plane of the middle part of the middle cross arm (1), an edge phase conductor hanging point (9) is arranged at the top end of the edge cross arm (2), and a first jumper hanging point is arranged in the edge phase conductor hanging point (9);
one end, far away from the middle cross arm (1), of one of the side cross arms (2) is provided with a wire jumping frame (5); a second jumper hanging point (10) is arranged on the jumper frame (5), and the second jumper hanging point (10) is a tension-resistant corner jumper hanging point of 40-90 degrees;
two V-string jumper hanging points (11) are arranged on the front side and the rear side of a node plate connected with the upright post (4) of the middle cross arm (1), and an I-string jumper hanging hole is formed in a main material of the side cross arm (2);
the middle cross arm (1) is a rectangular cross arm, and the width of the cross arm is equal in length and width; the main material on the top surface of the middle cross arm (1) is broken at the middle part, and the broken part is connected by adopting wrap angle steel; the main material on the bottom surface of the middle cross arm (1) is arranged in a through length manner; the inclined materials on the four peripheral surfaces of the middle cross arm (1) are arranged in a crossed mode;
the side cross arm (2) is a triangular cross arm, the side cross arm (2) is arranged in a through length mode and is connected with the upright post (4) and the middle cross arm (1) at the bottom through a node plate, and front and rear inclined materials of the side cross arm (2) are arranged according to a triangle; the top surface and the bottom surface inclined materials are arranged in a crossing manner; the side cross arm (2) is pre-arched according to 1/100 of the length of the side cross arm (2);
the upright posts (4) are of lattice type steel structures, and the two upright posts (4) are symmetrically arranged about the central position of the middle cross arm; the upper part of the upright post (4) is of a square straight post structure, and the length and the width of the section are the same as those of the middle cross arm (1); the lower part of the upright post (4) expands towards the ground according to the gradient of 0.12.
2. The large corner single loop gate type drilling tower for crossover according to claim 1, wherein the first jumper hanging point is 0 ° -40 ° jumper hanging point.
3. The large-corner single-loop portal drilling tower for cross-over according to claim 1, further comprising a tower leg (6), wherein the upright (4) is connected with the tower leg (6) by a wrap angle, and the tower leg (6) is connected with a foundation by an anchor bolt; each upright (4) is supported by four tower legs (6).
4. The large-corner single-loop portal drilling tower for cross-over according to claim 1, wherein the end of the side cross arm (2) connected with the middle cross arm (1) and the middle phase conductor hanging point (8) are provided with vertical separation surfaces.
5. A large corner single loop portal drilling tower for crossover according to claim 3 wherein the ground frame (3), upright (4) and tower leg (6) are each provided with studs on the side remote from the wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811435426.4A CN109386158B (en) | 2018-11-28 | 2018-11-28 | Large-corner single-loop gate-type drilling tower for crossing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811435426.4A CN109386158B (en) | 2018-11-28 | 2018-11-28 | Large-corner single-loop gate-type drilling tower for crossing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109386158A CN109386158A (en) | 2019-02-26 |
| CN109386158B true CN109386158B (en) | 2024-02-06 |
Family
ID=65429819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811435426.4A Active CN109386158B (en) | 2018-11-28 | 2018-11-28 | Large-corner single-loop gate-type drilling tower for crossing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109386158B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110350442A (en) * | 2019-07-18 | 2019-10-18 | 国网安徽省电力有限公司芜湖供电公司 | The method for improving of phase conductor in a kind of gate Guywire tower |
| CN110306858B (en) * | 2019-08-13 | 2024-03-26 | 中国电建集团贵州电力设计研究院有限公司 | Door type suspension cable pulling tower and method |
| CN110924734A (en) * | 2019-11-11 | 2020-03-27 | 天津送变电工程有限公司 | A special bracket for large corner tower spanning and sealing net |
| CN111706145A (en) * | 2020-06-16 | 2020-09-25 | 国网甘肃省电力公司建设分公司 | A 750kV double-circuit three-column double-door drilling tower |
| CN111682483B (en) * | 2020-07-02 | 2022-01-18 | 国核电力规划设计研究院有限公司 | Transmission line drilling tower and transmission line tower system |
| CN111682479B (en) * | 2020-07-02 | 2022-01-18 | 国核电力规划设计研究院有限公司 | Single-loop power transmission line iron tower and power transmission line tower system |
| CN115992616A (en) * | 2023-02-23 | 2023-04-21 | 国核电力规划设计研究院有限公司 | Single circuit landscape pole tower |
| CN117306930A (en) * | 2023-10-18 | 2023-12-29 | 中国电力工程顾问集团西南电力设计院有限公司 | A high-low double-column power transmission structure and its column design method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2889416A1 (en) * | 2012-10-25 | 2014-05-01 | Jiangsu Shenma Electric Co., Ltd. | Composite tower for power transmission lines of power grid and composite cross arm structure thereof |
| WO2015078279A1 (en) * | 2013-11-27 | 2015-06-04 | 国家电网公司 | Live overhaul process for ±800 kv ultra-high voltage dc power transmission line |
| CN205243135U (en) * | 2015-12-16 | 2016-05-18 | 龙源（北京）风电工程设计咨询有限公司 | Two times overhead transmission line alternately bores tower more |
| CN207620484U (en) * | 2017-12-08 | 2018-07-17 | 中国能源建设集团甘肃省电力设计院有限公司 | A kind of UHV transmission line suitable for Hexi Corridor Region, which bores, gets over tower |
| CN108729730A (en) * | 2018-08-29 | 2018-11-02 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of anchor support of limit for height area double-circuit line |
| CN209277659U (en) * | 2018-11-28 | 2019-08-20 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of big corner single loop gate brill more tower for scissors crossing |
-
2018
- 2018-11-28 CN CN201811435426.4A patent/CN109386158B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2889416A1 (en) * | 2012-10-25 | 2014-05-01 | Jiangsu Shenma Electric Co., Ltd. | Composite tower for power transmission lines of power grid and composite cross arm structure thereof |
| WO2015078279A1 (en) * | 2013-11-27 | 2015-06-04 | 国家电网公司 | Live overhaul process for ±800 kv ultra-high voltage dc power transmission line |
| CN205243135U (en) * | 2015-12-16 | 2016-05-18 | 龙源（北京）风电工程设计咨询有限公司 | Two times overhead transmission line alternately bores tower more |
| CN207620484U (en) * | 2017-12-08 | 2018-07-17 | 中国能源建设集团甘肃省电力设计院有限公司 | A kind of UHV transmission line suitable for Hexi Corridor Region, which bores, gets over tower |
| CN108729730A (en) * | 2018-08-29 | 2018-11-02 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of anchor support of limit for height area double-circuit line |
| CN209277659U (en) * | 2018-11-28 | 2019-08-20 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of big corner single loop gate brill more tower for scissors crossing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109386158A (en) | 2019-02-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109386158B (en) | Large-corner single-loop gate-type drilling tower for crossing | |
| CN106285171A (en) | The tower head of a kind of transmission tower and transmission tower | |
| US3299586A (en) | Crossarm assembly | |
| CN106150177A (en) | A kind of terminal anchor support for double-layer frame outlet | |
| CN203452435U (en) | Dual-loop spanning-and-ducking steel pipe rod | |
| CN212453883U (en) | 750kV double-loop three-column double-door type climbing tower | |
| CN205752997U (en) | Substation framework based on wire arranged vertically | |
| CN209277659U (en) | A kind of big corner single loop gate brill more tower for scissors crossing | |
| CN213742621U (en) | A 500kV single-circuit cat-shaped tower breaking iron tower with cross arm | |
| CN217028333U (en) | Same-tower double-circuit cross transposition tower adopting jumper wire composite cross arm | |
| CN207847235U (en) | No ground pole DC transmission line line pole tower | |
| CN215989643U (en) | Composite power transformation framework | |
| CN211351643U (en) | 'function' type pendulous cluster for preventing wind deflection | |
| RU51069U1 (en) | 6-10 kV CLASS ELECTRIC TRANSMISSION AIR LINE (OPTIONS) | |
| KR20150145776A (en) | Ship for assemblying and installing wind power generator | |
| CN210342847U (en) | Transmission tower convenient to installation | |
| CN206205551U (en) | The tower head and transmission tower of a kind of transmission tower | |
| CN209228171U (en) | Counter weight type Guywire tower | |
| CN111926698A (en) | Anti-collision wall structure | |
| SU1078974A1 (en) | Electric power transmission line support | |
| CN216949704U (en) | Composite power transformation framework | |
| US2049783A (en) | Transmission tower | |
| CN109458032B (en) | Double-loop body-penetrating straight line narrow foundation tower | |
| CN217557588U (en) | Roof color plate mounting platform | |
| RU2204671C2 (en) | Single-circuit support of three-phase power transmission line without lightning protection cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |