CN202509840U - +/_400kv direct current transmission line JK8 strain cross-over tower - Google Patents
+/_400kv direct current transmission line JK8 strain cross-over tower Download PDFInfo
- Publication number
- CN202509840U CN202509840U CN2012201503786U CN201220150378U CN202509840U CN 202509840 U CN202509840 U CN 202509840U CN 2012201503786 U CN2012201503786 U CN 2012201503786U CN 201220150378 U CN201220150378 U CN 201220150378U CN 202509840 U CN202509840 U CN 202509840U
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- tower
- strain insulator
- crossover
- transmission line
- power transmission
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Abstract
The utility model relates to a +/_400kv direct current transmission line JK8 strain cross-over tower which comprises a ground wire cross arm, a conducting wire cross arm, a tower head, a tower body and a tower leg. The ground wire cross arm is disposed on the top of the tower head and used for hanging a ground wire. The conducting wire cross arm is located at the lower portion of the tower head and used for hanging two side phase transmission lines and jumper wires. The +/_400kv direct current transmission line JK8 strain cross-over tower is mainly made of moderately strong steel angles. By adopting the +/_400kv direct current transmission line JK8 strain cross-over tower, requirements of +/_400kv direct current transmission lines can be satisfied.
Description
Technical field
The utility model relates to the high voltage iron tower field, particularly relates to a kind of ± 400kV DC power transmission line JK8 strain insulator crossover tower.
Background technology
Before this ± and 500kV is the minimum voltage grade of China's direct current high tension transmission circuit, for picture Golmud～Lhasa work transmission line, because the load of Tibet electrical network is less, employing ± 500kV economy is not good.In order to carry out the strategic objective of the Party Central Committee, State Council's enforcement " development of the West Regions "; Alleviate the recent short of electricity situation of electrical network in the Tibetan; Satisfy of the requirement of Tibet at a specified future date social economy to electric power development; Take into account economic feasibility simultaneously, China completes successfully ± the technological development of 400kV direct current transportation.
± 400kV DC power transmission line load is less relatively, and the hanging wire gold utensil is also different simultaneously, can not indiscriminately imitate the line steel tower of existing other electric pressure.Therefore, design ± 400kV DC power transmission line JK8 strain insulator crossover tower is the technical problem that those skilled in the art are badly in need of solving.
The utility model content
The utility model technical problem to be solved provides a kind of ± 400kV DC power transmission line JK8 strain insulator crossover tower can satisfy ± requirement of 400kV DC power transmission line.
Be to realize above-mentioned purpose, the utility model provides a kind of ± 400kV DC power transmission line JK8 strain insulator crossover tower, said JK8 strain insulator crossover tower comprises ground wire cross-arm, lead cross-arm, tower head, body of the tower and tower leg; Wherein,
Said ground wire cross-arm is arranged on said tower head top, is used to hang ground wire; Said lead cross-arm is positioned at said tower head bottom, is used to hang both sides phase transmission pressure and wire jumper;
Strong angle steel during the main material of said JK8 strain insulator crossover tower adopts.
Preferably, said ground wire cross-arm is negative shielding angle to lead.
Preferably, the lead cross-arm lower plane of said JK8 strain insulator crossover tower is square, and the left and right sides is isometric.
Preferably, two phase conductors of said JK8 strain insulator crossover tower adopt two V string squirrel-cage rigid jumpers.
Preferably, said JK8 strain insulator crossover tower wire jumper hanging point is set directly on the junction plate.
Preferably, the material at said JK8 strain insulator crossover tower lead hanging point place adopts two limb angle steel.
Preferably, said JK8 strain insulator crossover tower is provided with two half spaces.
Preferably, said JK8 strain insulator crossover tower adopts comprehensive unequal leg.
Preferably, said JK8 strain insulator crossover tower adopts full tower double-nut bolt proof measures.
Compared with prior art, the utlity model has following advantage:
The utility model provides a kind of ± 400kV DC power transmission line JK8 strain insulator crossover tower, wire jumper string before and after installing for ease, lead cross-arm lower plane is designed to square, and the left and right sides is isometric; The wire jumper hanging point is set directly on the junction plate, has saved steel and made things convenient for construction; Because of being located in the highlands, two half spaces are set, made things convenient for group pylon informant person and maintainer to organize tower or maintenance; Adopt full tower proof measures, reduced highlands maintainer's workload, guaranteed the line security operation.
Description of drawings
Fig. 1 is the single line drawing of the utility model ± 400kV DC power transmission line JK8 strain insulator crossover tower;
Fig. 2 is the wire jumper hanging point structure chart of the said JK8 strain insulator of the utility model crossover tower;
Wherein (a) is vertical view, (b) is lateral view;
Fig. 3 is the lead hanging point structure side view of the said JK8 strain insulator of the utility model crossover tower.
The specific embodiment
For above-mentioned purpose, the feature and advantage that make the utility model can be more obviously understandable, the utility model is done further detailed explanation below in conjunction with the accompanying drawing and the specific embodiment.
With reference to Fig. 1, for the utility model ± single line drawing of 400kV DC power transmission line JK8 strain insulator crossover tower.
Said JK8 strain insulator crossover tower comprises: ground wire cross-arm 14, lead cross-arm 15, tower head 11, body of the tower 12 and tower leg 13.
Said ground wire cross-arm 14 is arranged on said Tata head 11 tops.Said ground wire cross-arm 14 comprises two branches, lays respectively at the left and right sides on said tower head top, and plane is trapezoidal for closing up on it, to tower head the right and left horizontal stretching.
Said ground wire cross-arm 14 is used to hang ground wire, two phase transmission pressures are shielded, and adopt negative shielding angle, promptly right ground wire hanging point to the body of the tower axis apart from E
1Greater than right lead hanging point to the body of the tower axis apart from G
1Left side ground wire hanging point to the body of the tower axis apart from E
2Greater than left lead hanging point to the body of the tower axis apart from G
2
Said lead cross-arm 15 is positioned at said tower head 11 bottoms.Said lead cross-arm 15 comprises two branches, lays respectively at the left and right sides of said tower head bottom, and its lower plane is square, to tower head the right and left horizontal stretching, and right lead hanging point to the body of the tower axis apart from G
1Less than left lead hanging point to the body of the tower axis apart from G
2Right lead cross-arm outermost end is to the distance H of body of the tower axis
1Equal the distance H of left lead cross-arm outermost end to the body of the tower axis
2
Said lead cross-arm 15 is used to hang both sides phase transmission pressure, and satisfies the electric clearance requirement.
Preferentially, two phase conductors of said JK8 strain insulator crossover tower all adopt two V string squirrel-cage rigid jumpers, have reduced and have fallen the string accident, reduce the windage yaw probability of flashover, have ensured the safe operation of engineering.
Preferably, said JK8 strain insulator crossover tower is provided with two half spaces.To high height above sea level anoxic; The characteristics such as serious of imitating fall in work; For assurance group pylon informant person and maintainer fully have a rest and personal safety, all be provided with half space at DC line iron tower cross-arm and body of the tower junction 191 with ground wire cross-arm and body of the tower junction 192 first.
The said JK8 strain insulator of the utility model crossover tower, the wire jumper hanging point is set directly on the junction plate, specifically referring to Fig. 2.With the right horizontal stretcher is example, and wire jumper V goes here and there left limb and joins the tower gold utensil and directly hang on the hanging wire hole H16 of junction plate 16, and wire jumper V goes here and there right limb and joins the tower gold utensil and directly hang on the hanging wire hole H17 of junction plate 17; For wire jumper the hanging wire material is set no longer separately; Save steel, simplified node, made things convenient for construction.
Preferably, the lead hitch point of said JK8 strain insulator crossover tower and ground wire hanging point all adopt the superior GD link plate gold utensil of stress performance.
The lead hanging point member of the utility model is the hanging wire angle steel, and is as shown in Figure 3, joins the tower gold utensil and joins on hanging wire angle steel 18, and hanging wire angle steel 18 is linked on the cross-arm 15 to bolt through level.Adopt this structure, avoided the welding job at hanging point place,, can effectively strengthen the stress-bearing capability of hanging wire node, guarantee each item requirements such as intensity of hanging wire node for the line steel tower under the low temperature condition of high height above sea level.
Preferably, said JK8 strain insulator crossover tower tower leg 13 adopts comprehensive unequal leg, has farthest reduced earthwork evacuation amount and soil erosion, has protected Qinghai-Tibet regional fragile ecology.
Preferably, JK8 strain insulator crossover tower adopts full tower double-nut bolt proof measures, under adverse weather conditions such as Qinghai-Tibet Platean cold, anoxic, has reduced maintainer's workload, has also improved the circuit reliability of operation simultaneously.
More than to the utility model provided ± 400kV DC power transmission line JK8 strain insulator crossover tower carried out detailed introduction; Used concrete example among this paper the principle and the embodiment of the utility model are set forth, the explanation of above embodiment just is used to help to understand the method and the core concept thereof of the utility model; Simultaneously, for one of ordinary skill in the art, according to the thought of the utility model, the part that on the specific embodiment and range of application, all can change, in sum, this description should not be construed as the restriction to the utility model.
Claims (10)
1. one kind ± 400kV DC power transmission line JK8 strain insulator crossover tower is characterized in that, said JK8 strain insulator crossover tower comprises ground wire cross-arm, lead cross-arm, tower head, body of the tower and tower leg; Wherein,
Said ground wire cross-arm is arranged on said tower head top, is used to hang ground wire; Said lead cross-arm is positioned at said tower head bottom, is used to hang both sides phase transmission pressure and wire jumper;
Strong angle steel during the main material of said JK8 strain insulator crossover tower adopts.
2. according to claim 1 ± 400kV DC power transmission line JK8 strain insulator crossover tower, it is characterized in that said ground wire cross-arm is negative shielding angle to lead.
3. according to claim 1 ± 400kV DC power transmission line JK8 strain insulator crossover tower, it is characterized in that said lead cross-arm lower plane is square, and the left and right sides is isometric.
4. according to claim 1,2 or 3 described ± 400kV DC power transmission line JK8 strain insulator crossover towers, it is characterized in that the lead hitch point of said JK8 strain insulator crossover tower adopts GD link plate gold utensil to be connected with strain insulator string with the ground wire hanging point.
5. according to claim 1 ± 400kV DC power transmission line JK8 strain insulator crossover tower, it is characterized in that two phase conductors of said JK8 strain insulator crossover tower adopt two V string squirrel-cage rigid jumpers.
6. according to claim 5 ± 400kV DC power transmission line JK8 strain insulator crossover tower, it is characterized in that said JK8 strain insulator crossover tower wire jumper hanging point is set directly on two side connecting plates.
7. according to claim 3 ± 400kV DC power transmission line JK8 strain insulator crossover tower, it is characterized in that the member at said JK8 strain insulator crossover tower lead hanging point place adopts two limb angle steel.
8. according to claim 1 ± 400kV DC power transmission line JK8 strain insulator crossover tower, it is characterized in that said JK8 strain insulator crossover tower is provided with half space at lead cross-arm and body of the tower junction, ground wire cross-arm and body of the tower junction respectively.
9. according to claim 1 ± 400kV DC power transmission line JK8 strain insulator crossover tower, it is characterized in that said JK8 strain insulator crossover tower adopts comprehensive unequal leg.
10. according to claim 1 ± 400kV DC power transmission line JK8 strain insulator crossover tower, it is characterized in that said JK8 strain insulator crossover tower adopts full tower double-nut bolt anti-loose structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201503786U CN202509840U (en) | 2012-04-11 | 2012-04-11 | +/_400kv direct current transmission line JK8 strain cross-over tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201503786U CN202509840U (en) | 2012-04-11 | 2012-04-11 | +/_400kv direct current transmission line JK8 strain cross-over tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202509840U true CN202509840U (en) | 2012-10-31 |
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ID=47062332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201503786U Expired - Lifetime CN202509840U (en) | 2012-04-11 | 2012-04-11 | +/_400kv direct current transmission line JK8 strain cross-over tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202509840U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343275A (en) * | 2013-08-08 | 2015-02-11 | 国家电网公司 | Rest platform of crossing tower and crossing tower |
| CN112178018A (en) * | 2020-09-01 | 2021-01-05 | 南方电网科学研究院有限责任公司 | Connecting structure and mounting structure of overhang angle steel tower insulator |
-
2012
- 2012-04-11 CN CN2012201503786U patent/CN202509840U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343275A (en) * | 2013-08-08 | 2015-02-11 | 国家电网公司 | Rest platform of crossing tower and crossing tower |
| CN112178018A (en) * | 2020-09-01 | 2021-01-05 | 南方电网科学研究院有限责任公司 | Connecting structure and mounting structure of overhang angle steel tower insulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE OF CHINA Free format text: FORMER NAME: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE, CHINA POWER ENGINEERING CONSULTING GROUP CORPORATION |
|
| CP03 | Change of name, title or address |
Address after: 22 No. 710075, unity South Road, hi tech Industrial Development Zone, Shaanxi, Xi'an Co-patentee after: DC Construction Branch, State Grid Corp. of China Patentee after: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE CO., LTD. OF CHINA POWER ENGINEERING CONSULTING GROUP Address before: 710075 Xi'an province high tech Development Zone, unity South Road, No. 22, No. Co-patentee before: DC Construction Branch, State Grid Corp. of China Patentee before: Northwest Electric Power Design Institute, China Power Engineering Consulting Group Corporation |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121031 |