CN103903803A - Three-core medium-pressure waterproof and fire-resistant cable - Google Patents
Three-core medium-pressure waterproof and fire-resistant cable Download PDFInfo
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- CN103903803A CN103903803A CN201410076142.6A CN201410076142A CN103903803A CN 103903803 A CN103903803 A CN 103903803A CN 201410076142 A CN201410076142 A CN 201410076142A CN 103903803 A CN103903803 A CN 103903803A
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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 three-core medium-pressure waterproof and fire-resistant cable. The three-core medium-pressure waterproof and fire-resistant cable comprises a cable core, and the cable core of the cable is formed by stranding three insulating wire cores. According to each insulating wire core, an aluminum alloy conductor is arranged in the middle of the insulating wire core, the aluminum alloy conductor is sequentially wrapped in a conductor shielding layer, an insulating layer and an insulating and shielding layer in a three-layer co-extruding mode, and the insulating and shielding layer is wrapped in a copper belt shielding layer in a winding mode. Gap of the cable core is filled with inorganic filling bars, the cable core is sequentially wrapped in a lapped covering strap, a fire-resistant layer and a polyethylene inner protecting layer, the outermost layer of the cable core is wrapped in a corrugated aluminum sheath in an extruding mode, and the outer surface of the corrugated aluminum sheath is further coated with a fireproof coating layer. The three-core medium-pressure waterproof and fire-resistant cable is low in cost, high in strength, excellent in mechanical performance and electrical insulating performance, resistant to high temperature and fireproof.
Description
Technical field
The present invention relates to power cable technical field, particularly in a kind of three cores, press water-and fire-proof cable.
Background technology
Along with the develop rapidly of China's economy, in city, the voltage of electric power system also raises gradually.At present, the high level of domestic city and super-huge building are also more and more, if these buildings still adopt 0.6/1kV low voltage distribution, its matching used cable and mounting and installation workload, cable laying space will be very huge, and the cable laying in building is too much, excessive, also can affect the operation of circuit, bring larger safety problem.For solving an actual power difficult problem for high-rise and super-huge building, much bring into use middle pressure (6-35kV) power supply.For building, fire safety is problem most important, that need concern and primary solution most.At present, in some big and medium-sized cities, explicitly call for public place building, high-rise, super-huge building need adopt environmental-protection flame-retardant, fire-resisting cable, to prevent when the breaking out of fire, supply line's normal power supply within the predetermined time can be ensured, and toxic and harmful can be do not produced because of burning.Therefore, need a kind of environment-friendly high fire-retardant fire safe type midium voltage cable of research and development.
Midium voltage cable, because the voltage using is higher, must have conductor screen, insulation and insulation screen outside the conductor of cable; As fire-resisting cable, must must apply a flame retardant coating, to ensure under combustion case, not only fire-resistant, and to have higher thermal insulation, injury-free under combustion high temperature to ensure cable insulation, thereby meet, insulating performance of cable is intact within a certain period of time, still can continue power supply.Known middle pressure fire-resisting cable technology in existing, all exists the problem that some fire resistances are poor, water proofing property is poor, and is substantially all the midium voltage cable of copper conductor.
The bauxite resource of China is abundant at present, and copper resource scarcity very.Because internal copper ore resources approaches exhaustedly substantially, or cost of winning is too high, 80% copper loss amount dependence on import, in addition now in the world copper valency high become, make power circuit cost of investment more and more higher, also excessive to the resource consumption of copper material.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of cost low, intensity is high, mechanical performance is good, electrical insulation capability is excellent, press water-and fire-proof cable in high temperature resistant waterproof fireproof.
In a kind of three cores of the present invention, press water-and fire-proof cable, comprise cable core, its cable core is by three stranded forming of insulated wire cores, in the middle of comprising, described insulated wire cores is provided with an aluminium alloy conductor, outside aluminium alloy conductor, extrude successively conductor shield, insulating barrier and insulation screen in three-layer co-extruded mode, the outer wrapped copper strip shielding layer of insulation screen, cable core gap location is filled inorganic fill bar, cable core is coated twining package tape outward successively, flame retardant coating, polythene inner, outermost layer extrudes corrugated aluminum sheath, and its corrugated aluminum sheath outer surface also scribbles fireproof paint layer.
In the present invention, preferably, described insulation screen is double-decker, is made up of inside and outside insulation screen.
In the present invention, preferably, described twining package tape is water blocking yarn.
In the present invention, preferably, described flame retardant coating is ceramic silicon rubber.
In the present invention, preferably, described fireproof paint layer adds various fire-proof flame-retarded agents, plasticizer etc. by tertiary acrylic emulsion water-based material and forms.
Adopt after technique scheme, the present invention has following beneficial effect:
1, aluminum alloy conductor cable function admirable, can replace copper conductor cable preferably, and solves the problems such as electrician's fine aluminium conductor is oxidizable, creep-resistant property is poor, and material cost is lower, economic performance is good;
2, aluminium conductor adopts three-layer co-extruded structure outward, plays a very good protection, water-and fire-proof effect;
3, outermost layer extrudes corrugated aluminum sheath, can well protect chain armour, prevents armouring corrosion, water inlet, moisture vapor transmission, and in the time meeting fire burning, fire resistance is good, and LSZH without injury, is conducive to people's escape to human body;
4, cable fire-refractory coating, this product adds various fire-proof flame-retarded agents, plasticizer etc. by tertiary acrylic emulsion water-based material and forms, and is the current special-purpose aqueous fireproof paint of domestic more advanced electric wire.When this product coating is subject to fire, can generate the spongy foam thermal insulation layer of even compact, can effectively suppress, intercept flame transmission and spread, electric wire, cable are played a protective role.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing and instantiation, the present invention is done further and is explained:
As shown in Figure 1, in a kind of three cores of the present invention, press water-and fire-proof cable, comprise cable core, its cable core is by three stranded forming of insulated wire cores, in the middle of comprising, described insulated wire cores is provided with an aluminium alloy conductor 1, outside aluminium alloy conductor 1, extrude successively conductor shield 2 in three-layer co-extruded mode, insulating barrier 3 and insulation screen 4, the outer wrapped copper strip shielding layer 5 of insulation screen 4, cable core gap location is filled inorganic fill bar 6, cable core is coated twining package tape 7 outward successively, flame retardant coating 8, polythene inner 9, outermost layer extrudes corrugated aluminum sheath 10, its corrugated aluminum sheath 10 outer surfaces also scribble fireproof paint layer 11.
Described insulation screen 4 is double-decker, is made up of inside and outside insulation screen; Described twining package tape 7 is water blocking yarn, and flame retardant coating 8 is ceramic silicon rubber; Described fireproof paint layer 11 adds various fire-proof flame-retarded agents, plasticizer etc. by tertiary acrylic emulsion water-based material and forms.
The invention provides thinking and the method for in a kind of three cores, pressing water-and fire-proof cable; method and the approach of this technical scheme of specific implementation are a lot; the above is only the preferred embodiment of the present invention; should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.In the present embodiment not clear and definite each component part all available prior art realized.
Claims (5)
1. in a core, press water-and fire-proof cable, it is characterized in that: comprise cable core, its cable core is by three stranded forming of insulated wire cores, in the middle of comprising, described insulated wire cores is provided with an aluminium alloy conductor (1), outside aluminium alloy conductor (1), extrude successively conductor shield (2) in three-layer co-extruded mode, insulating barrier (3) and insulation screen (4), the outer wrapped copper strip shielding layer (5) of insulation screen (4), cable core gap location is filled inorganic fill bar (6), cable core is coated twining package tape (7) outward successively, flame retardant coating (8), polythene inner (9), outermost layer extrudes corrugated aluminum sheath (10), its corrugated aluminum sheath (10) outer surface also scribbles fireproof paint layer (11).
2. in three cores according to claim 1, press water-and fire-proof cable, it is characterized in that, described insulation screen (4) is double-decker, is made up of inside and outside insulation screen.
3. in three cores according to claim 1, press water-and fire-proof cable, it is characterized in that, described twining package tape (7) is water blocking yarn.
4. in three cores according to claim 1, press water-and fire-proof cable, it is characterized in that, described flame retardant coating (8) is ceramic silicon rubber.
5. in three cores according to claim 1, press water-and fire-proof cable, it is characterized in that, described fireproof paint layer (11) by tertiary acrylic emulsion water-based material add various fire-proof flame-retarded agents, plasticizer forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410076142.6A CN103903803A (en) | 2014-03-04 | 2014-03-04 | Three-core medium-pressure waterproof and fire-resistant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410076142.6A CN103903803A (en) | 2014-03-04 | 2014-03-04 | Three-core medium-pressure waterproof and fire-resistant cable |
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| CN103903803A true CN103903803A (en) | 2014-07-02 |
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| CN201410076142.6A Pending CN103903803A (en) | 2014-03-04 | 2014-03-04 | Three-core medium-pressure waterproof and fire-resistant cable |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104112517A (en) * | 2014-07-04 | 2014-10-22 | 安徽华电线缆集团有限公司 | Environment-friendly and safe water-blocking fireproof cable |
| CN104200906A (en) * | 2014-09-03 | 2014-12-10 | 太仓苏晟电气技术科技有限公司 | Purple-light cross-linked low-smoke halogen-free high flame-retardant EVA cable and production method thereof |
| CN104332226A (en) * | 2014-10-27 | 2015-02-04 | 安徽蒙特尔电缆集团有限公司 | Environment-friendly high-temperature resistant fireproof cable for aviation |
| CN105957592A (en) * | 2016-06-30 | 2016-09-21 | 安徽埃克森科技集团有限公司 | Oil-proof cable and preparation method thereof |
| CN105976913A (en) * | 2016-06-30 | 2016-09-28 | 江苏红峰电缆集团有限公司 | Improved-type medium-voltage fireproof power cable |
| CN105968698A (en) * | 2016-06-30 | 2016-09-28 | 安徽埃克森科技集团有限公司 | Cable and production process thereof |
| CN109360690A (en) * | 2018-11-27 | 2019-02-19 | 通鼎互联信息股份有限公司 | A kind of flat lock armo fire resisting cable for digital communication |
| CN109360683A (en) * | 2018-11-27 | 2019-02-19 | 通鼎互联信息股份有限公司 | A kind of digital communication high-speed transmission line |
| CN109411147A (en) * | 2018-11-27 | 2019-03-01 | 通鼎互联信息股份有限公司 | A kind of fire resisting cable for digital communication |
| CN109903926A (en) * | 2019-02-26 | 2019-06-18 | 湖北宝上电缆有限公司 | A kind of fire prevention midium voltage cable |
| CN114933761A (en) * | 2022-03-24 | 2022-08-23 | 东台市海通金属制品有限公司 | Method for processing multi-core tube with shielding layer and sheath |
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| CN2696086Y (en) * | 2004-01-21 | 2005-04-27 | 新疆百商电线电缆有限公司 | Fire-resistant and refractory environmental protection wire and cable |
| CN201000783Y (en) * | 2006-12-28 | 2008-01-02 | 朱水良 | 0.6/1kV and below goffer high flexible power cable |
| CN201741490U (en) * | 2010-06-23 | 2011-02-09 | 宝胜科技创新股份有限公司 | Water tree and corrosion resisting medium-voltage electric cable of aluminium embossed sheath |
| CN202796160U (en) * | 2012-07-23 | 2013-03-13 | 浙江万马电缆股份有限公司 | Novel non-sheathed multi-core fireproof electric cable |
| CN203150244U (en) * | 2013-01-28 | 2013-08-21 | 安徽龙庵电缆集团有限公司 | Aluminium alloy compacted conductor medium-voltage flame retardation fireproof cable |
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2014
- 2014-03-04 CN CN201410076142.6A patent/CN103903803A/en active Pending
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| CN2696086Y (en) * | 2004-01-21 | 2005-04-27 | 新疆百商电线电缆有限公司 | Fire-resistant and refractory environmental protection wire and cable |
| CN201000783Y (en) * | 2006-12-28 | 2008-01-02 | 朱水良 | 0.6/1kV and below goffer high flexible power cable |
| CN201741490U (en) * | 2010-06-23 | 2011-02-09 | 宝胜科技创新股份有限公司 | Water tree and corrosion resisting medium-voltage electric cable of aluminium embossed sheath |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104112517A (en) * | 2014-07-04 | 2014-10-22 | 安徽华电线缆集团有限公司 | Environment-friendly and safe water-blocking fireproof cable |
| CN104200906A (en) * | 2014-09-03 | 2014-12-10 | 太仓苏晟电气技术科技有限公司 | Purple-light cross-linked low-smoke halogen-free high flame-retardant EVA cable and production method thereof |
| CN104200906B (en) * | 2014-09-03 | 2016-08-17 | 国网山东省电力公司章丘市供电公司 | Purple light cross-linking low-smoke halogen-free high fire-retardance EVA electric wire and preparation method thereof |
| CN104332226A (en) * | 2014-10-27 | 2015-02-04 | 安徽蒙特尔电缆集团有限公司 | Environment-friendly high-temperature resistant fireproof cable for aviation |
| CN105968698A (en) * | 2016-06-30 | 2016-09-28 | 安徽埃克森科技集团有限公司 | Cable and production process thereof |
| CN105976913A (en) * | 2016-06-30 | 2016-09-28 | 江苏红峰电缆集团有限公司 | Improved-type medium-voltage fireproof power cable |
| CN105957592A (en) * | 2016-06-30 | 2016-09-21 | 安徽埃克森科技集团有限公司 | Oil-proof cable and preparation method thereof |
| CN105957592B (en) * | 2016-06-30 | 2017-10-10 | 安徽埃克森科技集团有限公司 | A kind of grease proofing cable and preparation method thereof |
| CN109360690A (en) * | 2018-11-27 | 2019-02-19 | 通鼎互联信息股份有限公司 | A kind of flat lock armo fire resisting cable for digital communication |
| CN109360683A (en) * | 2018-11-27 | 2019-02-19 | 通鼎互联信息股份有限公司 | A kind of digital communication high-speed transmission line |
| CN109411147A (en) * | 2018-11-27 | 2019-03-01 | 通鼎互联信息股份有限公司 | A kind of fire resisting cable for digital communication |
| CN109903926A (en) * | 2019-02-26 | 2019-06-18 | 湖北宝上电缆有限公司 | A kind of fire prevention midium voltage cable |
| CN114933761A (en) * | 2022-03-24 | 2022-08-23 | 东台市海通金属制品有限公司 | Method for processing multi-core tube with shielding layer and sheath |
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Application publication date: 20140702 |