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 PDF

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Publication number
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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CN
China
Prior art keywords
sheath
power cable
corrugated aluminum
layer
crosslinked polyetylene
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.)
Expired - Fee Related
Application number
CN 03203929
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Chinese (zh)
Inventor
郑保忠
郑顺山
温尚海
李继涛
程丙松
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inst. of Wire Cable Sci-Tech Co., Ltd., Hebei
Original Assignee
BAOFENG CABLE Co Ltd HEBEI PROV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BAOFENG CABLE Co Ltd HEBEI PROV filed Critical BAOFENG CABLE Co Ltd HEBEI PROV
Priority to CN 03203929 priority Critical patent/CN2606949Y/en
Application granted granted Critical
Publication of CN2606949Y publication Critical patent/CN2606949Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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

The crosslinked polyetylene insulated welding corrugated aluminum sheath of 290/500kV pvc sheath power cable
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.
CN 03203929 2003-02-13 2003-02-13 290/500 KV crosslinking polyvinyl insulation welding corragated aluminium sheathed polyvinyl sheath power cable Expired - Fee Related CN2606949Y (en)

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

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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)

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CN (1) CN2606949Y (en)

Cited By (5)

* Cited by examiner, † Cited by third party
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

Cited By (6)

* Cited by examiner, † Cited by third party
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