CN104934123A - Low-voltage aluminum alloy fireproof cable - Google Patents
Low-voltage aluminum alloy fireproof cable Download PDFInfo
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- CN104934123A CN104934123A CN201510262366.0A CN201510262366A CN104934123A CN 104934123 A CN104934123 A CN 104934123A CN 201510262366 A CN201510262366 A CN 201510262366A CN 104934123 A CN104934123 A CN 104934123A
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Abstract
The invention relates to a low-voltage aluminum alloy fireproof cable, which comprises four structurally identical cable cores arranged in parallel. Each cable core is composed of a conductor, and an inner fireproof belting layer is wrapped outside the conductor. An insulating layer is wrapped outside the inner fireproof belting layer. An outer fireproof belting layer is wrapped outside the insulating layer. A water-blocking tape is wrapped outside the outer fireproof belting layer. After the four cable cores are arranged in parallel, gaps among the cable cores are filled with a filling rope. A polyethylene cushion layer is wrapped outside the filling rope. An armor layer is wrapped outside the polyethylene cushion layer. A plastic sheath is arranged outside the armor layer. The cable provided by the invention is excellent in conductivity, creep resistance, thermal conductivity and corrosion resistance. The rebound resilience of the alloy cable is smaller than that of a copper cable by 40%. The flexibility of the alloy cable is higher than that of the copper cable by 30%. Meanwhile, the cable is excellent in fireproof performance.
Description
Technical field
The invention belongs to power cable technical field, particularly a kind of low pressure aluminum alloy fire-resistant cable.
Background technology
Power cable conductor domestic at present substantially all adopts copper conductor, and China or the most deficient country of a copper resource, but bauxite resource is extremely abundant, start with the conductor of aluminium alloy as cable as far back as 40 Duo Nianqian American-European countries, copper conductor is replaced to become a kind of inexorable trend with aluminium alloy conductor, simultaneously the fire resistance of cable and fire resistance play very large effect to the fail safe that cable uses, current fire-resisting cable adopts mica tape to be wound around mostly, and easily cause seam to occur defect, embrittlement after burning, easily comes off.This brings hidden danger with regard to giving the safe handling of cable.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, and propose a kind of low pressure aluminum alloy fire-resistant cable.
The present invention solves its technical problem and takes following technical scheme to realize:
A kind of low pressure aluminum alloy fire-resistant cable, it is characterized in that: comprise the core that four structures are identical and arranged in parallel, every bar core comprises conductor, internal refractory belting layer is wound with in conductor outside, insulating barrier is had in internal refractory belting layer outer wrap, outside fire-resistant wrapping tape layer is wound with in insulating barrier outside, waterstop is had in outside fire-resistant wrapping tape layer outer wrap, article four, core arranged in parallel after, gasket for packing is filled with betwixt between gap, wrapped up by polyethylene bedding in gasket for packing outside, at polyethylene bedding outer wrap armour, be plastic sheath in armour outside.
And described conductor adopts high-conductivity aluminum alloy, meanwhile, armour adopts the chain armouring of aluminum alloy strip.
And described insulating barrier specifically adopts organosilane crosslinked polyethylene.
And described inside, outside fire-resistant wrapping tape layer specifically adopts ceramic fireproof ethylene-propylene rubber composite band.
And what described plastic sheath specifically adopted is low-smoke halogen-free polyolefin sheath.
Advantage of the present invention and good effect are:
1, conductor of the present invention adopts high-conductivity aluminum alloy, armour adopts the chain armouring of aluminum alloy strip simultaneously, high-conductivity aluminum alloy conductor has excellent conductivity, creep resistance, thermal conductivity and corrosion resistance, alloy cable least less than copper cable by 40%, pliability is higher than copper cable by 30%, and the bending property of alloy cable is fine simultaneously, the minimum outside diameter of cable that can reach 7 times, therefore more easily carry out terminal connection, cable weight greatly reduces, and saves money laborsaving again to the mounting and installation of cable.
2, the present invention adopts ceramic fireproof ethylene-propylene rubber composite band to replace mica tape, avoids rear hardening, the embrittlement of mica tape burning, is easy to the shortcoming come off; Overcome mica tape moisture-sensitive simultaneously, lack flexible deficiency.
3, armouring of the present invention is that the chain armouring of aluminium alloy inherently has fire resistance, and this is first-class with regard to making the fire resistance of cable of the present invention.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Be further described the invention process below in conjunction with accompanying drawing, following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
A kind of low pressure aluminum alloy fire-resistant cable, as shown in Figure 1, comprise the core that four structures are identical and arranged in parallel, every bar core comprises conductor 1, internal refractory belting layer 2 is wound with in conductor outside, insulating barrier 3 is had in internal refractory belting layer outer wrap, outside fire-resistant wrapping tape layer 4 is wound with in insulating barrier outside, waterstop 5 is had in outside fire-resistant wrapping tape layer outer wrap, article four, core arranged in parallel after, gasket for packing 6 is filled with betwixt between gap, wrapped up by polyethylene bedding 7 in gasket for packing outside, at polyethylene bedding outer wrap armour 8, be plastic sheath 9 in armour outside,
In specific embodiment of the invention, described conductor adopts high-conductivity aluminum alloy, armour adopts the chain armouring of aluminum alloy strip simultaneously, high-conductivity aluminum alloy conductor has excellent conductivity, creep resistance, thermal conductivity and corrosion resistance, alloy cable least less than copper cable by 40%, pliability is higher than copper cable by 30%, the bending property of alloy cable is fine simultaneously, the minimum outside diameter of cable that can reach 7 times, therefore more easily terminal connection is carried out, cable weight greatly reduces, and saves money laborsaving again to the mounting and installation of cable.
In specific embodiment of the invention, described insulating barrier specifically adopts organosilane crosslinked polyethylene.
In specific embodiment of the invention, described inside, outside fire-resistant wrapping tape layer specifically adopts ceramic fireproof ethylene-propylene rubber composite band, adopts ceramic fireproof ethylene-propylene rubber composite band to replace mica tape, avoid rear hardening, the embrittlement of mica tape burning, be easy to the shortcoming come off; Overcome mica tape moisture-sensitive simultaneously, lack flexible deficiency.What add armouring is that the chain armouring of aluminium alloy inherently has fire resistance, and this is first-class with regard to making the fire resistance of cable of the present invention.
In specific embodiment of the invention, the existence of waterstop improves the radial water-resisting function of cable, reduces the generation of water tree and electric branch, improves the useful life of cable.
In specific embodiment of the invention, what described plastic sheath specifically adopted is low-smoke halogen-free polyolefin sheath, the danger of toxic gas when can prevent fire from occurring like this.
Above one embodiment of the present of invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (5)
1. a low pressure aluminum alloy fire-resistant cable, it is characterized in that: comprise the core that four structures are identical and arranged in parallel, every bar core comprises conductor, internal refractory belting layer is wound with in conductor outside, insulating barrier is had in internal refractory belting layer outer wrap, outside fire-resistant wrapping tape layer is wound with in insulating barrier outside, waterstop is had in outside fire-resistant wrapping tape layer outer wrap, article four, core arranged in parallel after, gasket for packing is filled with betwixt between gap, wrapped up by polyethylene bedding in gasket for packing outside, at polyethylene bedding outer wrap armour, be plastic sheath in armour outside.
2. low pressure aluminum alloy fire-resistant cable according to claim 1, is characterized in that: described conductor adopts high-conductivity aluminum alloy, and meanwhile, armour adopts the chain armouring of aluminum alloy strip.
3. low pressure aluminum alloy fire-resistant cable according to claim 1, is characterized in that: described insulating barrier specifically adopts organosilane crosslinked polyethylene.
4. low pressure aluminum alloy fire-resistant cable according to claim 1, is characterized in that: described inside, and outside fire-resistant wrapping tape layer specifically adopts ceramic fireproof ethylene-propylene rubber composite band.
5. low pressure aluminum alloy fire-resistant cable according to claim 1, is characterized in that: what described plastic sheath specifically adopted is low-smoke halogen-free polyolefin sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510262366.0A CN104934123A (en) | 2015-05-21 | 2015-05-21 | Low-voltage aluminum alloy fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510262366.0A CN104934123A (en) | 2015-05-21 | 2015-05-21 | Low-voltage aluminum alloy fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104934123A true CN104934123A (en) | 2015-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510262366.0A Pending CN104934123A (en) | 2015-05-21 | 2015-05-21 | Low-voltage aluminum alloy fireproof cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN104934123A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001202833A (en) * | 2000-01-18 | 2001-07-27 | Hitachi Cable Ltd | Fireproof electric wire and cable |
| EP1667169A1 (en) * | 2004-11-29 | 2006-06-07 | Nexans | Electrical cable |
| CN202373356U (en) * | 2011-12-08 | 2012-08-08 | 安徽金桥电缆有限公司 | Removable fireproof and dampproof electric cable |
| CN203406061U (en) * | 2013-09-03 | 2014-01-22 | 天津市津猫电线电缆集团有限公司 | Aluminum alloy fireproof cable |
| CN203910317U (en) * | 2013-12-30 | 2014-10-29 | 北京市交泰电缆有限公司 | Fire resistant power cable |
| CN203910299U (en) * | 2014-06-17 | 2014-10-29 | 丹阳市伟鹤祥线缆制造有限公司 | PVC electronic connecting wire |
| CN104448576A (en) * | 2013-09-16 | 2015-03-25 | 湖北航天化学技术研究所 | Ethylene-propylene-diene monomer(EPDM) rubber heat-insulating material with ceramifiable ablation carbon layer |
-
2015
- 2015-05-21 CN CN201510262366.0A patent/CN104934123A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001202833A (en) * | 2000-01-18 | 2001-07-27 | Hitachi Cable Ltd | Fireproof electric wire and cable |
| EP1667169A1 (en) * | 2004-11-29 | 2006-06-07 | Nexans | Electrical cable |
| CN202373356U (en) * | 2011-12-08 | 2012-08-08 | 安徽金桥电缆有限公司 | Removable fireproof and dampproof electric cable |
| CN203406061U (en) * | 2013-09-03 | 2014-01-22 | 天津市津猫电线电缆集团有限公司 | Aluminum alloy fireproof cable |
| CN104448576A (en) * | 2013-09-16 | 2015-03-25 | 湖北航天化学技术研究所 | Ethylene-propylene-diene monomer(EPDM) rubber heat-insulating material with ceramifiable ablation carbon layer |
| CN203910317U (en) * | 2013-12-30 | 2014-10-29 | 北京市交泰电缆有限公司 | Fire resistant power cable |
| CN203910299U (en) * | 2014-06-17 | 2014-10-29 | 丹阳市伟鹤祥线缆制造有限公司 | PVC electronic connecting wire |
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Application publication date: 20150923 |
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| RJ01 | Rejection of invention patent application after publication |