CN1490823A - Isolated copper wire cable with copper armoured under 3KV voltage rating and manufacture thereof - Google Patents
Isolated copper wire cable with copper armoured under 3KV voltage rating and manufacture thereof Download PDFInfo
- Publication number
- CN1490823A CN1490823A CNA021384460A CN02138446A CN1490823A CN 1490823 A CN1490823 A CN 1490823A CN A021384460 A CNA021384460 A CN A021384460A CN 02138446 A CN02138446 A CN 02138446A CN 1490823 A CN1490823 A CN 1490823A
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- conductor
- copper
- core
- cable
- copper sheath
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Abstract
The present invention discloses a cable with a copper core, a copper protecting sleeve and a mineral insulator having the rated voltage of 3kV or below and the manufacturing method thereof. The cable is constituted of conductor 1, covering layer 2 of the conductor, insulating layer 3, copper protecting sleeve 4 and outer protecting sheath 5. In order to obtain the cable with a copper core, a copper protecting sleeve and a mineral insulator, the manufacturing method comprises the steps as follows: providing evenly covering layer 2 of the conductor around conductor 1 to form a conductor core; then filling insulating layer 3 between the conductor core and copper protecting sleeve 4 to form a cable blank; stretching the cable blank consisting of conductor 1, covering layer 2 of the conductor, insulating layer 3 and copper protecting sleeve 4 to reduce its diameter and make insulating layer 3 fully fill up the gap between the conductor core and copper protecting sleeve 4 so as to form the cable. The cable and the method of the invention can increase effectively the insulating property of the cable, so that this cable has the high voltage level, the wide suitable range and the good safety.
Description
Affiliated technical field
The present invention relates to a kind of copper core copper sheath mineral insulated cable, especially a kind of have rated voltage 3kV and a following copper core copper sheath mineral insulated cable.The invention still further relates to the manufacture method of this kind cable.
Background technology
At present, known copper core copper sheath mineral insulated cable all is 750V and following electric pressure, is to be that conductor, mineral insulation powder are that insulation, seamless copper pipe are the architectural feature of sheath with real core copper, and this kind insulating performance of cable is poor, the proof voltage grade is low, and applicable situation is few.
The manufacture method of known rated voltage 750V and following copper core copper sheath mineral insulated cable, be earlier copper rod to be drawn into the plug of a uniform section and after annealing and clean, penetrate and clean in the seamless copper pipe of finishing, the filling mineral insulating powder forms the cable base between plug and seamless copper pipe then, plug, mineral insulation powder and the seamless copper pipe that to form the cable base again carry out synchro-draw, and draw repeatedly and repeatedly annealing, make the cable finished product.
Summary of the invention
The purpose of this invention is to provide a kind of good insulation preformance that has, proof voltage grade height, security performance is good, rated voltage 3kV and following copper core copper sheath mineral insulated cable that applicable situation is many, purpose of the present invention also will provide a kind of manufacture method of this cable.
The object of the present invention is achieved like this: be earlier copper rod to be drawn into the conductor in required cross section and to carry out surface clean after annealing in process, at the smooth wrapped obediently conductor cover layer of conductive surface, and all cover all surface of conductor except that the two ends cross section and make conductor thread core after cleaning is finished.
In order to make this new copper core copper sheath mineral insulated cable of forming conductor thread core by conductor and conductor cover layer, manufacture method of the present invention is: be earlier copper rod to be drawn into the conductor in required cross section and to carry out surface clean after annealing in process, after cleaning is finished at the wrapped conductor cover layer of conductive surface, should be smooth docile after this conductor cover layer is wrapped, and all cover all surface of plug except that the two ends cross section and make conductor thread core, then conductor thread core is penetrated and clean in the seamless copper pipe of finishing, the filling mineral insulating powder forms the cable base between conductor thread core and seamless copper pipe again, the conductor that to form the cable base again, the conductor cover layer, mineral insulation powder and seamless copper pipe carry out undergauge and stretch, the institute that the mineral insulation powder is filled up between conductor thread core and the seamless copper pipe fully is gapped, in the undergauge process with the still wrapped in an overlapping state of conductor cover layer, conductor is combined closely with the conductor cover layer in the undergauge process but is not had extension, thereby makes one by conductor, the conductor cover layer, the new cable that mineral insulation powder and seamless copper pipe are formed.
Owing to adopted technique scheme,, finished filling mineral insulating powder formation cable base between conductor thread core and the seamless copper pipe by the conductor thread core that conductor and conductor cover layer are formed, and carry out after undergauge makes cable, insulating properties is better, and higher grade of proof voltage, and application range of products is wider.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Accompanying drawing is a structure chart of the present invention.
Among the figure: 1, conductor, 2, the conductor cover layer, 3, insulating barrier, 4, copper sheath, 5, oversheath.
Embodiment
In embodiment as shown in the figure, conductor 1 is to be that the real core copper rod of T2 draws and forms by code name, the wrapped obediently one deck conductor of surfacing cover layer 2 at this conductor 1, this conductor cover layer 2 is by overlapping wrapped the forming of mica tape, conductor 1 and conductor cover layer 2 have been formed conductor thread core, the seamless phosphorous deoxidize copper tube that is with code name and is TP1 or TP2 or TU2 outside this conductor thread core is as copper sheath 4, separate as insulating barrier 3 and conductor thread core with tightly compacted magnesia powder in the copper sheath 4, one deck thermoplastic can also be set outside copper sheath 4 constitute oversheath 5, because the material of conductor cover layer 2 is the good insulation preformance of overlapping wrapped mica tape, the electric pressure height, changed the withstand voltage properties of cable effectively, compared with prior art, the good insulation preformance of product of the present invention, the electric pressure height, the scope of application is wider, and fail safe is better.
Rated voltage 3kV as shown in the figure and following copper core copper sheath mineral insulated cable can adopt following procedure of processing to make: earlier copper rod is drawn into the conductor 1 in required cross section and carries out surface clean after annealing in process, after cleaning is finished at conductor 1 surperficial wrapped conductor cover layer 2, should be smooth docile after this conductor cover layer 2 is wrapped, and all cover all surface of conductor 1 except that the two ends cross section and make conductor thread core, then conductor thread core is penetrated and clean in the seamless copper pipe of finishing as copper sheath 4, the filling mineral insulating powder forms the cable base as insulating barrier 3 between conductor thread core and copper sheath 4 again, the conductor 1 that to form the cable base again, conductor cover layer 2, insulating barrier 3 and copper sheath 4 carry out undergauge and stretch, the institute that mineral insulation powder as insulating barrier 3 is filled up between conductor thread core and the copper sheath 4 fully is gapped, and conductor cover layer 2 still keeps overlapping wrapped state in the undergauge process, conductor 1 is combined closely with conductor cover layer 2 in the undergauge process but is not had extension, thereby make one by conductor 1, conductor cover layer 2, rated voltage 3kV of the present invention and following copper core copper sheath mineral insulated cable that insulating barrier 3 and copper sheath 4 are formed can also extrude one deck insulation oversheath 6 outside the copper sheath 4 of this cable.
Claims (6)
1 one kinds of rated voltage 3kV and following copper core copper sheath mineral insulated cable are made of conductor (1) and insulating barrier (3), copper sheath (4), it is characterized in that being provided with outside conductor (1) one deck and the smooth conductor cover layer (2) that closely contacts obediently of conductor (1).
2, rated voltage 3kV according to claim 1 and following copper core copper sheath mineral insulated cable is characterized in that the material that conductor cover layer (2) is adopted is a mica tape.
3, rated voltage 3kV according to claim 2 and following copper core copper sheath mineral insulated cable is characterized in that the material that conductor (1) is adopted is that code name is the real core copper rod of T2.
4, rated voltage 3kV according to claim 2 and following copper core copper sheath mineral insulated cable is characterized in that the material that copper sheath (4) is adopted is that code name is the seamless phosphorous deoxidize copper tube of TP1 or TP2 or TU2.
5, according to claim 3 or 4 described rated voltage 3kV and following copper core copper sheath mineral insulated cable, it is characterized in that outside copper sheath (4), being extruded with one deck oversheath (5).
6, a kind of method of making described rated voltage 3kV of claim 1 and following copper core copper sheath mineral insulated cable, it is characterized in that adopting following procedure of processing to make: earlier copper rod is drawn into the conductor (1) in required cross section and carries out surface clean after annealing in process, after cleaning is finished at conductor (1) the wrapped obediently conductor cover layer of surfacing (2), and all cover all surface of conductor (1) except that the two ends cross section, form a conductor thread core of forming by conductor (1) and conductor cover layer (2), then conductor thread core is penetrated and clean in the seamless copper pipe of finishing as copper sheath (4), the filling mineral insulating powder forms the cable base as insulating barrier (3) between conductor thread core and copper sheath (4) again, the conductor (1) that to form the cable base again, conductor cover layer (2), insulating barrier (3) and copper sheath (4) carry out undergauge and stretch, the institute that mineral insulation powder as insulating barrier (3) is filled up between conductor thread core and the copper sheath (4) fully is gapped, thereby makes one by conductor (1), conductor cover layer (2), rated voltage 3kV of the present invention and following copper core copper sheath mineral insulated cable that insulating barrier (3) and copper sheath (4) are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021384460A CN1490823A (en) | 2002-10-16 | 2002-10-16 | Isolated copper wire cable with copper armoured under 3KV voltage rating and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021384460A CN1490823A (en) | 2002-10-16 | 2002-10-16 | Isolated copper wire cable with copper armoured under 3KV voltage rating and manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1490823A true CN1490823A (en) | 2004-04-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021384460A Pending CN1490823A (en) | 2002-10-16 | 2002-10-16 | Isolated copper wire cable with copper armoured under 3KV voltage rating and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1490823A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100485824C (en) * | 2007-06-11 | 2009-05-06 | 宝胜科技创新股份有限公司 | Method for automatically filling mineral insulated electric cable |
| CN102651252A (en) * | 2012-05-16 | 2012-08-29 | 上海快鹿电气技术开发有限公司 | Flexible mineral insulated fireproof cable |
| CN103440934A (en) * | 2013-08-23 | 2013-12-11 | 江苏远方电缆厂有限公司 | Technology and device for machining copper protection sleeve of strip-shaped mineral insulated cable in softening mode |
| CN105575555A (en) * | 2016-03-23 | 2016-05-11 | 宝胜科技创新股份有限公司 | Mineral insulated cable pair twist production technology in same metal sleeve |
| CN108962495A (en) * | 2018-07-14 | 2018-12-07 | 上海安捷防火智能电缆有限公司 | A kind of fireproof flexible cable production technology and its flexible fire-proof cable of production |
| CN109554943A (en) * | 2018-12-30 | 2019-04-02 | 山东莱威新材料有限公司 | A kind of wear-resisting mine fireproof hawser and its processing method |
-
2002
- 2002-10-16 CN CNA021384460A patent/CN1490823A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100485824C (en) * | 2007-06-11 | 2009-05-06 | 宝胜科技创新股份有限公司 | Method for automatically filling mineral insulated electric cable |
| CN102651252A (en) * | 2012-05-16 | 2012-08-29 | 上海快鹿电气技术开发有限公司 | Flexible mineral insulated fireproof cable |
| CN102651252B (en) * | 2012-05-16 | 2014-06-25 | 上海快鹿电气技术开发有限公司 | Flexible mineral insulated fireproof cable |
| CN103440934A (en) * | 2013-08-23 | 2013-12-11 | 江苏远方电缆厂有限公司 | Technology and device for machining copper protection sleeve of strip-shaped mineral insulated cable in softening mode |
| CN105575555A (en) * | 2016-03-23 | 2016-05-11 | 宝胜科技创新股份有限公司 | Mineral insulated cable pair twist production technology in same metal sleeve |
| CN105575555B (en) * | 2016-03-23 | 2018-06-12 | 宝胜科技创新股份有限公司 | Mineral insulated cable pair twist production technology in same metallic sheath |
| CN108962495A (en) * | 2018-07-14 | 2018-12-07 | 上海安捷防火智能电缆有限公司 | A kind of fireproof flexible cable production technology and its flexible fire-proof cable of production |
| CN109554943A (en) * | 2018-12-30 | 2019-04-02 | 山东莱威新材料有限公司 | A kind of wear-resisting mine fireproof hawser and its processing method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |