CN101546626A - Hollow self-cooled cable - Google Patents
Hollow self-cooled cable Download PDFInfo
- Publication number
- CN101546626A CN101546626A CN200910068728A CN200910068728A CN101546626A CN 101546626 A CN101546626 A CN 101546626A CN 200910068728 A CN200910068728 A CN 200910068728A CN 200910068728 A CN200910068728 A CN 200910068728A CN 101546626 A CN101546626 A CN 101546626A
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- Prior art keywords
- cable
- conductor
- self
- hollow
- cooled
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- 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.)
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Abstract
The invention relates to a hollow self-cooled cable special for distribution systems in high-rise buildings. A cable conductor of the self-cooled cable is hollow. An outer layer of a helical metal hose is wound with the cable conductor, and an insulating layer and a jacket layer are excluded on the cable conductor. Firstly, the cable conductor is wound on the helical metal hose; secondly, the insulating layer and the jacket layer are excluded on the cable conductor, and during the construction, one end of the cable is arranged on the top of a cable pit in the high-rise building; and thirdly, the cable is fixed in the cable pit, and the other end of the cable is connected with a section box at the lower end of the cable pit or a distribution cabinet of a basement. The cable conductor is a hollow conductor supported by the helical metal hose and is just like a chimney; and when the temperature of the cable is increased, the air temperature in the conductor is increased to lighten and rise, cold air enters the cable conductor from the bottom to make the temperature of the cable conductor reduced, and the process is repeated to form a self-cooled system so as to realize the self-cooling of the cable and improve the current carrying capacity per unit area of the cable.
Description
Technical field
The invention belongs to the cable technology field, relate to a kind of hollow self-cooled cable that is specifically designed to distribution system in the skyscraper.
Background technology
Along with the height of China's skyscraper is more and more higher, the electric power transfer problem in the skyscraper becomes more and more important, and the electric power transfer in the skyscraper mainly adopts common power cable at present.But there is a serious defective in this product, because cable is solid, the conductor heat dispersion is poor, the feature of its conductor weak heat-dissipating was more obvious when especially the cross section of cable was big, thereby cause cable temperature to rise and influence circuit safety, has only the conductor area that increases cable for the normal working temperature that guarantees cable, and along with its conductor heat dispersion of increase of conductor area further reduces, make cable along with the increase of conductor area causes its unit are ampacity obviously to descend like this, thereby cause the engineering material cost obviously to increase.
Summary of the invention
In order to solve the deficiencies in the prior art, the present invention proposes a kind of hollow self-cooled cable, mainly is that the large size conductor heat dispersion in the electric power transfer is poor in the existing skyscraper of solution, the problem that the unit are ampacity is low.
Cable provided by the invention is the hollow self-cooled cable, and the conductor that it is characterized in that cable is hollow.
As shown in Figure 1, comprise metal spiral flexible pipe 1, cable conductor 2, insulating barrier 3, restrictive coating 4; At metal spiral flexible pipe 1 outer cable conductor 2, extruded insulation layer 3 and the restrictive coating 4 on conductor of twining.
Hollow self-cooled cable preparation method of the present invention is:
At first cable conductor is wrapped on the metal spiral flexible pipe, extruded insulation layer and restrictive coating on conductor again, during construction one end of cable is installed in the top of skyscraper inner cable well, then cable is fixed in the cable shaft, the other end of cable is connected with the branch electronic box of cable shaft lower end or the power distribution cabinet of basement, drop at skyscraper inner cable well is all very big, generally all more than 30 meters, because cable conductor of the present invention is the hollow conductor that is supported by the metal spiral flexible pipe, just look like that chimney is the same, air themperature when cable temperature raises in the conductor increases the rising that lightens, cold air enters from the bottom cable conductor temperature is reduced, going round and beginning again forms the cooling system of self, thereby reaches self cooling off of cable, improves the unit are ampacity of cable.
The present invention is according to the particularity of electric power transfer in the skyscraper and its cable arrangement feature, thereby can well reduce the cable conductor temperature, increase the unit are ampacity and reduce construction cost by the change to the construction of cable.
Description of drawings
Fig. 1: hollow self-cooled cable structural representation;
Wherein: metal spiral flexible pipe 1, cable conductor 2, insulating barrier 3, restrictive coating 4.
Embodiment
The specific embodiment of the present invention is as follows:
Earlier cable conductor is wrapped on the metal spiral flexible pipe, extruded insulation layer and restrictive coating get final product on conductor again.
As shown in Figure 1, at metal spiral flexible pipe 1 outer cable conductor 2, extruded insulation layer 3 and the restrictive coating 4 on conductor of twining.At first cable conductor is wrapped on the metal spiral flexible pipe, extruded insulation layer and restrictive coating on conductor again, during construction one end of cable is installed in the top of skyscraper inner cable well, then cable is fixed in the cable shaft, the other end of cable is connected with the branch electronic box of cable shaft lower end or the power distribution cabinet of basement, drop at skyscraper inner cable well is all very big, generally all more than 30 meters, because cable conductor of the present invention is the hollow conductor that is supported by the metal spiral flexible pipe, just look like that chimney is the same, air themperature when cable temperature raises in the conductor increases the rising that lightens, cold air enters from the bottom cable conductor temperature is reduced, going round and beginning again forms the cooling system of self, thereby reaches self cooling off of cable, improves the unit are ampacity of cable.
Be that cable about 1000A is that the example contrast is as follows with the ampacity:
| Required specification | Ampacity (A) | Unit are ampacity (A) | Cable weight (kg) | |
| Power cable | 500mm 2 | 965 | 1.93 | 4806 |
| The hollow self-cooled cable | 185mm 2 | 1064 | 5.75 | 2320 |
Claims (2)
1. hollow self-cooled cable, the conductor that it is characterized in that cable is hollow.
2. hollow self-cooled cable as claimed in claim 1 is characterized in that at outer cable conductor (2), extruded insulation layer (3) and the restrictive coating (4) on conductor of twining of metal spiral flexible pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910068728A CN101546626A (en) | 2009-05-05 | 2009-05-05 | Hollow self-cooled cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910068728A CN101546626A (en) | 2009-05-05 | 2009-05-05 | Hollow self-cooled cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101546626A true CN101546626A (en) | 2009-09-30 |
Family
ID=41193688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910068728A Pending CN101546626A (en) | 2009-05-05 | 2009-05-05 | Hollow self-cooled cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101546626A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102110495A (en) * | 2010-12-10 | 2011-06-29 | 久盛电气股份有限公司 | High-temperature resistant and radiation-resistant inorganic insulating hollow cable as well as manufacturing method and mold thereof |
| CN102237157A (en) * | 2010-04-22 | 2011-11-09 | 上海产联电气科技有限公司 | Dry-type all-insulating tubular bus |
| CN102290126A (en) * | 2011-08-01 | 2011-12-21 | 中国电力科学研究院 | Hollow expanded diameter conductor |
| CN102403065A (en) * | 2011-09-30 | 2012-04-04 | 重庆瑞普电缆有限公司 | Rubber insulation screw-type spring flexible cable |
| CN104051071A (en) * | 2014-06-05 | 2014-09-17 | 泰州日顺电器发展有限公司 | Hollow and venting cable and manufacturing process thereof |
| CN104200866A (en) * | 2014-09-05 | 2014-12-10 | 丹阳市明琪金属制品有限公司 | Copper-clad aluminum composite conductor for high-performance electric wire and cable |
| CN105225736A (en) * | 2015-11-07 | 2016-01-06 | 中利科技集团股份有限公司 | A kind of ventilating and cooling type list core flexible cable and manufacture method thereof |
| CN105469864A (en) * | 2016-01-14 | 2016-04-06 | 东莞市蓝姆材料科技有限公司 | Polygonal conductor core wire and high-speed data transmission cable adopting same |
| CN106409412A (en) * | 2016-11-28 | 2017-02-15 | 深圳市沃尔核材股份有限公司 | Cable and lead |
| CN106847377A (en) * | 2017-03-29 | 2017-06-13 | 非凡电缆集团有限公司 | A kind of high-temperature resistant air cooling cable |
| CN107039117A (en) * | 2017-05-27 | 2017-08-11 | 特变电工(德阳)电缆股份有限公司 | New-energy automobile flexible cable |
-
2009
- 2009-05-05 CN CN200910068728A patent/CN101546626A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102237157B (en) * | 2010-04-22 | 2012-10-17 | 上海产联电气科技有限公司 | Dry-type all-insulating tubular bus |
| CN102237157A (en) * | 2010-04-22 | 2011-11-09 | 上海产联电气科技有限公司 | Dry-type all-insulating tubular bus |
| CN102110495A (en) * | 2010-12-10 | 2011-06-29 | 久盛电气股份有限公司 | High-temperature resistant and radiation-resistant inorganic insulating hollow cable as well as manufacturing method and mold thereof |
| CN102110495B (en) * | 2010-12-10 | 2013-04-03 | 久盛电气股份有限公司 | High-temperature resistant and radiation-resistant inorganic insulating hollow cable as well as manufacturing method and mold thereof |
| CN102290126B (en) * | 2011-08-01 | 2015-04-29 | 中国电力科学研究院 | Hollow expanded diameter conductor |
| CN102290126A (en) * | 2011-08-01 | 2011-12-21 | 中国电力科学研究院 | Hollow expanded diameter conductor |
| CN102403065A (en) * | 2011-09-30 | 2012-04-04 | 重庆瑞普电缆有限公司 | Rubber insulation screw-type spring flexible cable |
| CN104051071A (en) * | 2014-06-05 | 2014-09-17 | 泰州日顺电器发展有限公司 | Hollow and venting cable and manufacturing process thereof |
| CN104200866A (en) * | 2014-09-05 | 2014-12-10 | 丹阳市明琪金属制品有限公司 | Copper-clad aluminum composite conductor for high-performance electric wire and cable |
| CN105225736A (en) * | 2015-11-07 | 2016-01-06 | 中利科技集团股份有限公司 | A kind of ventilating and cooling type list core flexible cable and manufacture method thereof |
| CN105225736B (en) * | 2015-11-07 | 2017-01-18 | 中利科技集团股份有限公司 | Ventilation cooling type single-core flexible cable and manufacturing method thereof |
| CN105469864A (en) * | 2016-01-14 | 2016-04-06 | 东莞市蓝姆材料科技有限公司 | Polygonal conductor core wire and high-speed data transmission cable adopting same |
| CN106409412A (en) * | 2016-11-28 | 2017-02-15 | 深圳市沃尔核材股份有限公司 | Cable and lead |
| CN106847377A (en) * | 2017-03-29 | 2017-06-13 | 非凡电缆集团有限公司 | A kind of high-temperature resistant air cooling cable |
| CN107039117A (en) * | 2017-05-27 | 2017-08-11 | 特变电工(德阳)电缆股份有限公司 | New-energy automobile flexible cable |
| CN107039117B (en) * | 2017-05-27 | 2023-08-25 | 特变电工(德阳)电缆股份有限公司 | Flexible cable for new energy automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090930 |