CN103903809A - Flame-retardant polyolefin-sheathed power cable - Google Patents
Flame-retardant polyolefin-sheathed power cable Download PDFInfo
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- CN103903809A CN103903809A CN201410080659.2A CN201410080659A CN103903809A CN 103903809 A CN103903809 A CN 103903809A CN 201410080659 A CN201410080659 A CN 201410080659A CN 103903809 A CN103903809 A CN 103903809A
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- layer
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- insulating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The invention discloses a flame-retardant polyolefin-sheathed power cable. The flame-retardant polyolefin-sheathed power cable comprises conductors, insulating cable cores and an outer sheath layer. An FEP insulating layer is wrapped on each conductor in an extruding mode, and polyvinyl chloride insulating material composite layers are arranged outside the insulating layers to form the insulating cable cores. A fireproof layer formed by double-layer mica tape is wrapped on every two corresponding insulating cable cores in a lapping mode after the two insulating cable cores are stranded to form a cable core. A polyurethane wrapping tape layer is wrapped on the four cable cores in a lapping mode after the four cable cores are combined together. A tinned copper wire shielding layer is wrapped on the wrapping tape layer in a lapping mode. The polyethylene outer sheath layer is wrapped on the tinned copper wire shielding layer in a lapping mode. Four control cable cores are arranged in the wrapping tape layer and are respectively formed by wrapping an FEP insulating layer on a conductor in an extruding mode. Gaps between the cable cores and the wrapping tape layer are filled with filling ropes. The flame-retardant polyolefin-sheathed power cable has good heat resistance, low temperature resistance and flame retardance, and the flame resistance oxygen index is as high as 90; meanwhile, the flame-retardant polyolefin-sheathed power cable has good electrical insulation performance, water resistance and wet resistance.
Description
technical field
The present invention relates to a kind of flame-retardant polyolefin sheathed power cable, belong to technical field of electric wires and cables.
background technology
Power cable (power cable), for transmitting and distribute the cable of electric energy.Be usually used in Urban Underground electrical network, power station lead line, industrial and mining enterprises in-line power and cross river, the submarine transmission line in sea excessively.In power circuit, the shared proportion of cable increases just gradually.Power cable be master in electric power system in circuit in order to transmission with distribute the cable product of high-power power, comprising 1-500KV and above various electric pressure, the power cable of various insulation.
summary of the invention
The invention provides one simple in structure, have the flame-retardant polyolefin sheathed power cable of good electrical insulation properties and resistance to water, moisture-proof.
The solution of the present invention is as follows: a kind of flame-retardant polyolefin sheathed power cable, comprise conductor, insulated wire cores and external sheath layer, on conductor, extrude perfluoroethylene-propylene insulating barrier, described insulating barrier is provided with polychloroethylene insulation material composite bed outward and forms insulated wire cores, two fireprotection layer formation cores that the double-deck mica tape of the stranded rear wrapped employing of insulated wire forms; Wrapped polyurethane belting layer after four core combinations, the outer wrapped tinned copper wire screen of described belting layer, the outer wrapped outer protective polyethylene jacket layer of described tinned copper wire screen; In described belting layer, arrange four and control core, described control core extrudes perfluoroethylene-propylene insulating barrier outward by conductor and forms; Between described core and belting layer, being provided with gasket for packing fills.
Further, the sectional area of described conductor is 10～240mm
2, described conductor should adopt the 5th kind of annealed copper conductor stipulating in GB/T3956.
This practicality has excellent heat-resisting and resistance to low temperature, has splendid fire resistance, and fire-retardant oxygen index is up to 90; Good electrical insulation properties and resistance to water and moisture-proof also simultaneously.For overcoming poly-fluoroplastics material cracking phenomena, insulating barrier extrudes polyvinyl chloride insulation reinforced layer outward; Reached double-insulated usefulness, electric pressure is 600/1000V, finished product test voltage 3500V/5 minute.
accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
A kind of flame-retardant polyolefin sheathed power cable, comprise conductor, insulated wire cores and external sheath layer, on conductor 1, extrude perfluoroethylene-propylene insulating barrier 2, outside described insulating barrier 2, be provided with polychloroethylene insulation material composite bed 3 and form insulated wire cores, two fireprotection layer formation cores that the double-deck mica tape 4 of the stranded rear wrapped employing of insulated wire forms; Wrapped polyurethane belting layer 5 after four core combinations, the outer wrapped tinned copper wire screen 6 of described belting layer 5, the outer wrapped outer protective polyethylene jacket layer 7 of described tinned copper wire screen 6; In described belting layer 5, arrange four and control core 8, described control core extrudes perfluoroethylene-propylene insulating barrier outward by conductor and forms; Between described core and belting layer, being provided with gasket for packing fills.
The sectional area of described conductor 1 is 10～240mm
2, described conductor should adopt the 5th kind of annealed copper conductor stipulating in GB/T3956.
Although above the specific embodiment of the present invention has been given to describe in detail and explanation; but what should indicate is; we can carry out various equivalences to above-mentioned execution mode according to conception of the present invention and change and revise; when its function producing does not exceed spiritual that specification and accompanying drawing contain yet, all should be within protection scope of the present invention.
Claims (2)
1. a flame-retardant polyolefin sheathed power cable, comprise conductor, insulated wire cores and external sheath layer, it is characterized in that extruding on conductor perfluoroethylene-propylene insulating barrier, described insulating barrier is provided with polychloroethylene insulation material composite bed outward and forms insulated wire cores, two fireprotection layer formation cores that the double-deck mica tape of the stranded rear wrapped employing of insulated wire forms; Wrapped polyurethane belting layer after four core combinations, the outer wrapped tinned copper wire screen of described belting layer, the outer wrapped outer protective polyethylene jacket layer of described tinned copper wire screen; In described belting layer, arrange four and control core, described control core extrudes perfluoroethylene-propylene insulating barrier outward by conductor and forms; Between described core and belting layer, being provided with gasket for packing fills.
2. the flame-retardant polyolefin sheathed power cable of one according to claim 1, is characterized in that the sectional area of described conductor is 10～240mm
2, described conductor should adopt the 5th kind of annealed copper conductor stipulating in GB/T3956.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410080659.2A CN103903809A (en) | 2014-03-06 | 2014-03-06 | Flame-retardant polyolefin-sheathed power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410080659.2A CN103903809A (en) | 2014-03-06 | 2014-03-06 | Flame-retardant polyolefin-sheathed power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103903809A true CN103903809A (en) | 2014-07-02 |
Family
ID=50995082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410080659.2A Pending CN103903809A (en) | 2014-03-06 | 2014-03-06 | Flame-retardant polyolefin-sheathed power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103903809A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110648789A (en) * | 2019-10-12 | 2020-01-03 | 湖北力生电缆有限公司 | Polyethylene high-flame-retardant power cable and manufacturing method and equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008130367A (en) * | 2006-11-21 | 2008-06-05 | Hitachi Cable Ltd | High-voltage cabtire cable |
| CN201725621U (en) * | 2010-07-14 | 2011-01-26 | 开开电缆科技有限公司 | Heat-resisting electric cable of intrinsically safe explosion-proof instrument |
| CN202110838U (en) * | 2011-05-12 | 2012-01-11 | 安徽胜华电缆集团有限公司 | Offshore oil platform cable |
| CN202534393U (en) * | 2011-12-30 | 2012-11-14 | 湖南华菱线缆股份有限公司 | An oceanographic-engineering-used cable |
| CN202662369U (en) * | 2012-05-15 | 2013-01-09 | 安徽猎塔电缆集团有限公司 | Compound insulated high-temperature resistant power cable |
| CN203150161U (en) * | 2013-01-11 | 2013-08-21 | 安徽龙庵电缆集团有限公司 | Composite cable for coal mining machines |
| CN203787197U (en) * | 2014-03-06 | 2014-08-20 | 安徽猎塔电缆集团有限公司 | Antiflaming polyolefin sheath power cable |
-
2014
- 2014-03-06 CN CN201410080659.2A patent/CN103903809A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008130367A (en) * | 2006-11-21 | 2008-06-05 | Hitachi Cable Ltd | High-voltage cabtire cable |
| CN201725621U (en) * | 2010-07-14 | 2011-01-26 | 开开电缆科技有限公司 | Heat-resisting electric cable of intrinsically safe explosion-proof instrument |
| CN202110838U (en) * | 2011-05-12 | 2012-01-11 | 安徽胜华电缆集团有限公司 | Offshore oil platform cable |
| CN202534393U (en) * | 2011-12-30 | 2012-11-14 | 湖南华菱线缆股份有限公司 | An oceanographic-engineering-used cable |
| CN202662369U (en) * | 2012-05-15 | 2013-01-09 | 安徽猎塔电缆集团有限公司 | Compound insulated high-temperature resistant power cable |
| CN203150161U (en) * | 2013-01-11 | 2013-08-21 | 安徽龙庵电缆集团有限公司 | Composite cable for coal mining machines |
| CN203787197U (en) * | 2014-03-06 | 2014-08-20 | 安徽猎塔电缆集团有限公司 | Antiflaming polyolefin sheath power cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110648789A (en) * | 2019-10-12 | 2020-01-03 | 湖北力生电缆有限公司 | Polyethylene high-flame-retardant power cable and manufacturing method and equipment |
| CN110648789B (en) * | 2019-10-12 | 2024-01-05 | 湖北力生电缆有限公司 | Polyethylene high-flame-retardance power cable and manufacturing method and equipment thereof |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140702 |
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| WD01 | Invention patent application deemed withdrawn after publication |