CN2606949Y - 290/500 KV crosslinking polyvinyl insulation welding corragated aluminium sheathed polyvinyl sheath power cable - Google Patents
290/500 KV crosslinking polyvinyl insulation welding corragated aluminium sheathed polyvinyl sheath power cable Download PDFInfo
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- CN2606949Y CN2606949Y CN 03203929 CN03203929U CN2606949Y CN 2606949 Y CN2606949 Y CN 2606949Y CN 03203929 CN03203929 CN 03203929 CN 03203929 U CN03203929 U CN 03203929U CN 2606949 Y CN2606949 Y CN 2606949Y
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- sheath
- power cable
- corrugated aluminum
- layer
- crosslinked polyetylene
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Abstract
The utility model discloses a 290/500 KV crosslinking polyvinyl insulation welding corrugated aluminum sheathed polyvinyl sheath power cable, which comprises an inner shielding layer, an insulation layer, an insulation shielding layer, a semiconduction waterproof buffering belt layer, a corrugated aluminum sheath layer and an oversheath layer arranged outwards from a cable central conductor. The utility model has each electric property according with national standard as well as perfect waterproof and electric shock-resistant performance; meanwhile, test shows that the cable possesses first level withstand voltage capacity against lightning impulse.
Description
One, technical field
The utility model is about a kind of power cable, more particularly about the crosslinked polyetylene insulated welding corrugated aluminum sheath of a kind of 90/500kV pvc sheath power cable.
Two, background technology
Continuous development along with China's electric utility, whole nation generating equipment installed capacity reaches 3.1932 hundred million kilowatts, 1.3685 trillion kilowatt-hours of energy output, these two indexs have all occupied the second place of the world, indicate that China has entered world's electrical production and consumption big country, along with the construction of Three Gorges water power, the important behave of transferring electricity from the west to the east, electric power will drive power cable towards the heavy in section, big capacity, voltage levels development.Therefore it is imperative to develop the ultra high voltage twisted polyethylene cable.
Three, summary of the invention
The purpose of this utility model provides and a kind ofly can be applicable to hydroelectric station or hydroenergy storage station superhigh pressure lead-out wire, and the crosslinked polyetylene insulated welding corrugated aluminum sheath of the 290/500kV of city underground transmission line pvc sheath power cable.
These and other purpose of the present utility model will further embody and set forth by following explanation.
In the utility model, the crosslinked polyetylene insulated welding corrugated aluminum sheath of described 290/500kV pvc sheath power cable, from cable center conductor outward, be followed successively by internal shield, insulating barrier, insulation screen, semiconductive block water buffering belt, corrugated aluminum sheath layer and external sheath layer.
Further, power cable center conductor of the present utility model is for pressing circle or five milliken conductors; Internal shield is made up of wrapped semiconductive nylon tape and the ultra-smooth semiconductive material that extrudes; Semiconductive blocks water the buffering belt for vertical, and its thickness is 2.0mm, and the number of plies is 3 layers, and the mode of putting up is that opposite joint is wrapped; The corrugated aluminum sheath layer blocks water the buffering belt for radially and be the spiral ring grain of the 6.0-8.0mm degree of depth with respect to semiconductive; External sheath layer contains pitch anticorrosive coat and the equadag coating that thickness is 0.2-0.5mm.
The utility model utilizes existing cables manufacturing material and process equipment, by rational material and textural association, produces the ultra high voltage twisted polyethylene cable of 290/500kV.
Product of the present utility model has following characteristics:
1, every electric property of power cable all satisfies the national standard requirement;
2, the block-water performance of power cable and anti-electric shock performance are splendid, and test shows that this cable has one-level lightning impulse voltage tolerance level.
Below further specify the utility model by accompanying drawing and explanation thereof.
Four, description of drawings
Fig. 1 is that the structure of the utility model power cable is analysed and observe simple view.
In Fig. 1, symbol 1 is represented conductor, and symbol 2 is represented internal shield, and symbol 3 is represented insulating barrier, and symbol 4 is represented insulation shielding, and symbol 5 is represented the semiconductive buffering belt that blocks water, and on behalf of corrugated aluminum sheath layer and symbol 7, symbol 6 represent external sheath layer.
As shown in Figure 1, the crosslinked polyetylene insulated welding corrugated aluminum sheath of the 290/500kV pvc sheath power cable that this use is novel, count outward from cable center conductor 1, be followed successively by internal shield 2, insulating barrier 3, insulation shielding 4, semiconductive block water and cushion belt 5, corrugated aluminum sheath layer 6 and external sheath layer 7, wherein internal shield 2 is made up of wrapped semiconductive nylon tape and the ultra-smooth semiconductive material that extrudes; Semiconductive blocks water and cushions belt 5 thickness is 2.0mm, and the number of plies is 3 layers; External sheath layer contains the pitch anticorrosive coat and the equadag coating of 0.2-0.5mm thickness.
The preparation method of the utility model power cable adopts VCV dry type vertical " U " type production line, and is furnished with company of German hila section label measuring instrument, the core shift degree of online detection insulation, German Xi Kela company impurity on-line measuring device has been installed at insulation head place simultaneously, and the online stress relaxation device of ROL is housed, can eliminates the internal stress of insulation and dwindle pore size.By interior screen, insulation, shield three-layer co-extruding machine head outward and extrude simultaneously, whole production line is by system controlled by computer, along with the various technical parameters in the track record production process, and calculates the processing parameter of different size cable automatically by NCC software.The ultra-clean Insulation Material adopts the gravity blanking mode, and the Clean room grade is 100 grades.
The processing mode of corrugated aluminum sheath of the present utility model adopts the vertical wrap molding of aluminium strip, adopts the argon arc welding mode to become aluminum pipe, rolls into the spiral ring grain of the 6.0-8.0mm degree of depth through embossing calender, and line configuration eddy current flaw detec, the on-line monitoring welding quality.
The processing method of insulated wire cores of the present utility model further adopts drying room to degas to reduce pore size, and temperature is controlled in the 60-70 ℃ of scope when degassing, and the time is 15-20 days.
Above-mentioned " U " type line configuration the conductor pre-heating device, temperature is controlled in the 70-100 ℃ of scope, has effectively improved the degree of cross linking of insulation, eliminates the internal stress of insulation.And 600 purpose screen packs have been installed in machine neck junction, guaranteed insulating barrier impurity minimum dimension.
Claims (7)
1, the crosslinked polyetylene insulated welding corrugated aluminum sheath of a kind of 290/500kV pvc sheath power cable, it is characterized in that outward, be followed successively by internal shield, insulating barrier, insulation screen, semiconductive block water buffering belt, corrugated aluminum sheath layer and external sheath layer from cable center conductor.
2, the crosslinked polyetylene insulated welding corrugated aluminum sheath of 290/500kV according to claim 1 pvc sheath power cable, wherein cable center conductor is for pressing circle or five milliken conductors.
3, the crosslinked polyetylene insulated welding corrugated aluminum sheath of 290/500kV according to claim 1 pvc sheath power cable, wherein internal shield is made up of wrapped semiconductive nylon tape and the ultra-smooth semiconductive material that extrudes.
4, the crosslinked polyetylene insulated welding corrugated aluminum sheath of 290/500kV according to claim 1 pvc sheath power cable, wherein semiconductive blocks water the buffering belt for vertical, and its thickness is 2.0mm, and the number of plies is 3 layers, and the mode of putting up is that opposite joint is wrapped.
5, the crosslinked polyetylene insulated welding corrugated aluminum sheath of 290/500kV according to claim 1 pvc sheath power cable, wherein the corrugated aluminum sheath layer blocks water the buffering belt for radially with respect to semiconductive.
6, the crosslinked polyetylene insulated welding corrugated aluminum sheath of 290/500kV according to claim 1 pvc sheath power cable, wherein the corrugated aluminum sheath layer is the spiral ring grain of the 6.0-8.0mm degree of depth.
7, the crosslinked polyetylene insulated welding corrugated aluminum sheath of 290/500kV according to claim 1 pvc sheath power cable, wherein external sheath layer contains pitch anticorrosive coat and the equadag coating that thickness is 0.2-0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03203929 CN2606949Y (en) | 2003-02-13 | 2003-02-13 | 290/500 KV crosslinking polyvinyl insulation welding corragated aluminium sheathed polyvinyl sheath power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03203929 CN2606949Y (en) | 2003-02-13 | 2003-02-13 | 290/500 KV crosslinking polyvinyl insulation welding corragated aluminium sheathed polyvinyl sheath power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2606949Y true CN2606949Y (en) | 2004-03-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03203929 Expired - Fee Related CN2606949Y (en) | 2003-02-13 | 2003-02-13 | 290/500 KV crosslinking polyvinyl insulation welding corragated aluminium sheathed polyvinyl sheath power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2606949Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102097186A (en) * | 2011-03-07 | 2011-06-15 | 无锡市长城电线电缆有限公司 | Manufacturing clean room for insulation of 500KV ultra-high voltage power cable |
| CN103903788A (en) * | 2014-03-04 | 2014-07-02 | 成都科创佳思科技有限公司 | High-voltage cross linked polyethylene insulated power cable |
| CN104157362A (en) * | 2014-08-26 | 2014-11-19 | 广州南洋电缆有限公司 | Power cable |
| CN106448916A (en) * | 2016-11-30 | 2017-02-22 | 宜昌信通电缆有限公司 | Direct-current ultrahigh-voltage (+/- 150 kV to 500 kV) crosslinked polyethylene insulated photoelectric composite power cable |
| CN114334293A (en) * | 2021-12-20 | 2022-04-12 | 杭州电缆股份有限公司 | High-voltage crosslinked polyethylene insulated power cable and preparation process thereof |
-
2003
- 2003-02-13 CN CN 03203929 patent/CN2606949Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102097186A (en) * | 2011-03-07 | 2011-06-15 | 无锡市长城电线电缆有限公司 | Manufacturing clean room for insulation of 500KV ultra-high voltage power cable |
| CN103903788A (en) * | 2014-03-04 | 2014-07-02 | 成都科创佳思科技有限公司 | High-voltage cross linked polyethylene insulated power cable |
| CN104157362A (en) * | 2014-08-26 | 2014-11-19 | 广州南洋电缆有限公司 | Power cable |
| CN104157362B (en) * | 2014-08-26 | 2016-09-28 | 广州南洋电缆有限公司 | A kind of power cable |
| CN106448916A (en) * | 2016-11-30 | 2017-02-22 | 宜昌信通电缆有限公司 | Direct-current ultrahigh-voltage (+/- 150 kV to 500 kV) crosslinked polyethylene insulated photoelectric composite power cable |
| CN114334293A (en) * | 2021-12-20 | 2022-04-12 | 杭州电缆股份有限公司 | High-voltage crosslinked polyethylene insulated power cable and preparation process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CABLE SCIENCE TECHNOLOGY INST., CO., LTD., HEBEI Free format text: FORMER OWNER: BAOFENG CABLE CO., LTD., HEBEI Effective date: 20040312 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Designer after: Zheng Baozhong Designer after: Zheng Shunshan Designer after: Li Jitao Designer after: Cheng Bingsong Designer after: Zheng Yupeng Designer after: Qi Jingzan Designer before: Zheng Baozhong Designer before: Zheng Shunshan Designer before: Wen Shanghai Designer before: Li Jitao Designer before: Cheng Bingsong |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: DESIGNER; FROM: ZHENG BAOZHONG ZHENG SHUNSHAN WEN SHANGHAI LI JITAO CHENG BINGSONG TO: ZHENG BAOZHONG ZHENG SHUNSHAN LI JITAO CHENG BINGSONG ZHENG YUPENG QI JINGZAN |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20040312 Address after: Jing Jing and hi tech park, Hejian, Hebei Patentee after: Inst. of Wire Cable Sci-Tech Co., Ltd., Hebei Address before: No. 1, Jing Jing and hi tech park, Hejian, Hebei Patentee before: Baofeng Cable Co., Ltd., Hebei Prov. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040317 Termination date: 20110213 |