CN103871664B - A kind of low smoke and zero halogen rare earth aluminum alloy power cable - Google Patents
A kind of low smoke and zero halogen rare earth aluminum alloy power cable Download PDFInfo
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- CN103871664B CN103871664B CN201410065309.9A CN201410065309A CN103871664B CN 103871664 B CN103871664 B CN 103871664B CN 201410065309 A CN201410065309 A CN 201410065309A CN 103871664 B CN103871664 B CN 103871664B
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Abstract
The invention discloses a kind of low smoke and zero halogen rare earth aluminum alloy power cable, comprise multiple conductor; Each conductor comprises the rare-earth aluminum alloy lead wire being positioned at middle part and the insulating barrier being coated on rare-earth aluminum alloy lead wire outside; Multiple conductor strand is become cable core, in the outside coated one-sided metallic plastics composite band of described cable core, its plastic layer is towards interior and metal level is outside, at the outside applying coating of the metal level of one-sided metallic plastics composite band, at the outside coated restrictive coating of coating, described restrictive coating adopts low smoke and zero halogen crosslinked polyolefin materials to make.The present invention proposes a kind of low smoke and zero halogen rare earth aluminum alloy power cable, its structure is simple, and the low smoke and zero halogen feature of environmental protection is good, overcomes the defects such as cable weight in prior art is comparatively large, resistance is comparatively large, conductive capability is poor, poor safety performance.
Description
Technical field
The present invention relates to field of cable technology, particularly relate to a kind of low smoke and zero halogen rare earth aluminum alloy power cable.
Background technology
Along with the development of advancing by leaps and bounds of power industry, the demand of cable just increases progressively with the annual growth of 10 ~ 15%.Wire mainly copper and the aluminium that present wires and cables industry is used, because copper valency is soaring at a high speed, in order to reduce producing cost, world's wires and cables industry proposes using aluminium for the method for copper as electric wire wire.At present, China's aluminium production capacity surplus, meanwhile, the breach of copper material is large needs import, in order to change the dependence to copper material, makes full use of Domestic Resources, ensures that the key of power industry sustainable development widelys popularize the wire of aluminium as electric wire.In cable industry, aluminium replaces the ideal material of copper, but fine aluminium wire exists again some shortcomings as bad mechanical strength, easily creep, easily overload heating etc.
The wire diameter of conventional aluminium leader cable is comparatively large, and steel-tape armouring level of security is low, and when being subject to external world power, its defensive ability/resistance ability is poor, easily causes puncturing, and Heavy Weight, installation cost is quite high, in addition poor corrosion resistance, and useful life is not long.This common cable structure, cannot run for a long time in adverse circumstances, and processing is more complicated and difficult.Under normal circumstances, existing cable can meet the demands, if but cable be used in adverse circumstances and require in higher environment, then can not meet instructions for use to cable security.
Summary of the invention
In order to solve the technical problem existed in background technology, the present invention proposes a kind of low smoke and zero halogen rare earth aluminum alloy power cable, its structure is simple, and the low smoke and zero halogen feature of environmental protection is good, overcomes the defects such as cable weight in prior art is comparatively large, resistance is comparatively large, conductive capability is poor, poor safety performance.
A kind of low smoke and zero halogen rare earth aluminum alloy power cable that the present invention proposes, comprises multiple conductor; Each conductor comprises the rare-earth aluminum alloy lead wire being positioned at middle part and the insulating barrier being coated on rare-earth aluminum alloy lead wire outside; Multiple conductor strand is become cable core, in the outside coated one-sided metallic plastics composite band of described cable core, its plastic layer is towards interior and metal level is outside, at the outside applying coating of the metal level of one-sided metallic plastics composite band, at the outside coated restrictive coating of coating, described restrictive coating adopts low smoke and zero halogen crosslinked polyolefin materials to make.
Preferably, described rare-earth aluminum alloy lead wire adopts 8000 to be that rare earth aluminium alloy is made.
Preferably, described insulating barrier adopts crosslinked polyetylene insulated layer.
Preferably, described one-sided metallic plastics composite band can adopt single-side copper-plastic compound belt or one side aluminium-plastic tape.
Preferably, described coating adopts epoxy coating.
In the present invention, adopt rare earth aluminium alloy to make wire, ensure that the conductive capability of cable, resistance to bend(ing), corrosion resistance, reduce the weight of cable, cost and installation difficulty simultaneously; One-sided metallic plastics composite band by wrapped for conductor together while, metal level plays the effect of screen, plastic layer protection conductor insulating barrier, reach the effect of moisture-proof anticorrosive; Adopt epoxy coating, have high temperature resistant, that bonding force is strong advantage, the metal level of its protection single-layer metal plastics composite band is corrosion-resistant, single-layer metal plastics composite band and restrictive coating can also be bonded together, reach the effect of combining closely further; Low smoke and zero halogen cross-linked polyolefin sheath layer has protection and fire retardation, the gas low smoke and zero halogen of releasing during burning, environmental sound.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of low smoke and zero halogen rare earth aluminum alloy power cable that the present invention proposes.
Embodiment
As shown in Figure 1, Fig. 1 is the structural representation of a kind of low smoke and zero halogen rare earth aluminum alloy power cable that the present invention proposes.
With reference to Fig. 1, a kind of low smoke and zero halogen rare earth aluminum alloy power cable that the present invention proposes, comprises three conductors 1.
Conductor 1 inside is employing 8000 is the wire 11 that rare earth aluminium alloy silk is made, while this rare-earth aluminum alloy lead wire 11 ensure that the conductive capability of cable, pliability is better than copper conductor, and weight is only 1/3rd of same volume copper conductor, aluminium alloy conductor is used to alleviate cable weight, be convenient to install, and cost reduction.The outside coated crosslinked polyetylene insulated layer 12 of wire 11, insulating barrier 12 makes conductor 1 insulate each other.
By three parallel longitudinal one-tenth cable cores of conductor 1; at the outside coated one side aluminium-plastic tape 2 of cable core; the plastic layer of this one side aluminium-plastic tape 2 is towards interior; be strapped in tightly together from outside by three conductors 1; stable process is carried out to the structure of all conductors 1, has reached the effect of protection insulating barrier 2, moisture-proof anticorrosive simultaneously.Further, the aluminum metal layer of one side aluminium-plastic tape 2, towards outward, plays the effect of screen, reduces the impact of the external electromagnetic waves suffered by cable.In addition, one side aluminium-plastic tape 2 soft flexible, does not affect the resistance to bend(ing) of cable.At the aluminum metal layer outside coating epoxy coating 3 of one side aluminium-plastic tape 2.Epoxy coating 3 have high temperature resistant, anticorrosion, insulation, strong bonding property; it protects the aluminum metal layer of one side aluminium-plastic tape 2 corrosion-resistant on the one hand; on the other hand one side aluminium-plastic tape 2 and restrictive coating 4 are bonded together; reach the effect of combining closely; and it coordinates with the plastic layer of one side aluminium-plastic tape 2 corrosion resistance adding cable jointly, extends the useful life of cable.At the outside coated low smoke and zero halogen cross-linked polyolefin sheath layer 4 of epoxy coating 3, it has protection and fire retardation, the gas low smoke and zero halogen of releasing during burning, environmental sound.
Preferably, the coating that this epoxy coating 3 adopts comprises following component according to mass fraction: 40-60 part multi-epoxy group epoxy resin, 2-10 part dicyandiamide, 0.5-20 part polyacrylate liquid rubber, 0.5-3 part fatty acid amide, 0.3-1.5 part trifluoromethanesulfonic acid calcium; Particularly, 60 parts of multi-epoxy group epoxy resin, 6 parts of dicyandiamides, 10 parts of polyacrylate liquid rubbers, 2.5 parts of fatty acid amides, 0.8 part of trifluoromethanesulfonic acid calcium.Trifluoromethanesulfonic acid calcium is as metallic catalyst, and accelerate the solidification of epoxy coating, film formation time is short; Toughness after polyacrylate liquid rubber makes epoxy coating solidify significantly strengthens.The epoxy coating 3 that this material is made, cohesive force is strong, and overall corrosion resistant water proofing property is strong, and has wide thermal adaptability, and the non-foaming not delamination of high temperature, low temperature does not ftracture.
According to the low smoke and zero halogen rare earth aluminum alloy power cable of the present embodiment, after testing, electric pressure is 0.6/1.0kV; Withstand voltage test result is 3.5/5kV/min; Conductor allows maximum operating temperature to be 90 DEG C for a long time; Insulation resistance >=500M Ω .km; The minimum median of insulation tensile strength is 12.5Mpa; Bending radius is 7D; Be not less than 40 years useful life; Fatigue resistance is higher than copper cable by 25%; Flexibility is higher than copper cable by 25%, and cable weight is light, easy for installation; In insulate heat elongation test, extension rate≤175 under load, permanent extension rate≤15 after cooling; Smoke density >=80%; PH value >=7.3; Conductivity≤10 μ S/mm.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (4)
1. a low smoke and zero halogen rare earth aluminum alloy power cable, is characterized in that, comprises multiple conductor (1); Each conductor (1) comprises the rare-earth aluminum alloy lead wire (11) being positioned at middle part and the insulating barrier (12) being coated on rare-earth aluminum alloy lead wire (11) outside; Multiple conductor (1) is twisted into cable core, the outside coated one-sided metallic plastics composite band (2) of described cable core, its plastic layer is towards interior and metal level is outside, the outside applying coating (3) of the metal level of one-sided metallic plastics composite band (2), the outside coated restrictive coating (4) of coating (3), described restrictive coating (4) adopts low smoke and zero halogen crosslinked polyolefin materials to make;
Described coating (3) adopts epoxy coating; The coating that described epoxy coating adopts comprises following component according to mass fraction: 40-60 part multi-epoxy group epoxy resin, 2-10 part dicyandiamide, 0.5-20 part polyacrylate liquid rubber, 0.5-3 part fatty acid amide, 0.3-1.5 part trifluoromethanesulfonic acid calcium.
2. low smoke and zero halogen rare earth aluminum alloy power cable according to claim 1, is characterized in that, described rare-earth aluminum alloy lead wire (11) adopts 8000 to be that rare earth aluminium alloy is made.
3. low smoke and zero halogen rare earth aluminum alloy power cable according to claim 1, is characterized in that, described insulating barrier (12) adopts crosslinked polyetylene insulated layer.
4. low smoke and zero halogen rare earth aluminum alloy power cable according to claim 1, is characterized in that, described one-sided metallic plastics composite band (2) can adopt single-side copper-plastic compound belt or one side aluminium-plastic tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410065309.9A CN103871664B (en) | 2014-02-23 | 2014-02-23 | A kind of low smoke and zero halogen rare earth aluminum alloy power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410065309.9A CN103871664B (en) | 2014-02-23 | 2014-02-23 | A kind of low smoke and zero halogen rare earth aluminum alloy power cable |
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| Publication Number | Publication Date |
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| CN103871664A CN103871664A (en) | 2014-06-18 |
| CN103871664B true CN103871664B (en) | 2016-04-06 |
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| CN201410065309.9A Active CN103871664B (en) | 2014-02-23 | 2014-02-23 | A kind of low smoke and zero halogen rare earth aluminum alloy power cable |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2891229Y (en) * | 2006-03-03 | 2007-04-18 | 江苏亨通电力电缆有限公司 | Halogen-free low-smoke flame retardant chemical corrosion resistant power cable with rated voltage <=35kV |
| CN201576469U (en) * | 2009-10-30 | 2010-09-08 | 浙江万马电缆股份有限公司 | Electrostatic spraying full water-blocking cable |
| CN201607970U (en) * | 2010-01-07 | 2010-10-13 | 广东新南达电缆实业有限公司 | Fireproof and waterproof LSZH fire alarm cable |
| CN102306520A (en) * | 2011-06-30 | 2012-01-04 | 江苏新远程电缆股份有限公司 | Water-resistant anticorrosive comprehensive sheath medium-voltage cable |
| CN202650634U (en) * | 2012-04-28 | 2013-01-02 | 江苏中超电缆股份有限公司 | Aluminum alloy cable |
| CN203826108U (en) * | 2014-02-23 | 2014-09-10 | 安徽华海特种电缆集团有限公司 | Low-smoke halogen-free rare-earth aluminum-alloy power cable |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9035185B2 (en) * | 2010-05-03 | 2015-05-19 | Draka Holding N.V. | Top-drive power cable |
-
2014
- 2014-02-23 CN CN201410065309.9A patent/CN103871664B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2891229Y (en) * | 2006-03-03 | 2007-04-18 | 江苏亨通电力电缆有限公司 | Halogen-free low-smoke flame retardant chemical corrosion resistant power cable with rated voltage <=35kV |
| CN201576469U (en) * | 2009-10-30 | 2010-09-08 | 浙江万马电缆股份有限公司 | Electrostatic spraying full water-blocking cable |
| CN201607970U (en) * | 2010-01-07 | 2010-10-13 | 广东新南达电缆实业有限公司 | Fireproof and waterproof LSZH fire alarm cable |
| CN102306520A (en) * | 2011-06-30 | 2012-01-04 | 江苏新远程电缆股份有限公司 | Water-resistant anticorrosive comprehensive sheath medium-voltage cable |
| CN202650634U (en) * | 2012-04-28 | 2013-01-02 | 江苏中超电缆股份有限公司 | Aluminum alloy cable |
| CN203826108U (en) * | 2014-02-23 | 2014-09-10 | 安徽华海特种电缆集团有限公司 | Low-smoke halogen-free rare-earth aluminum-alloy power cable |
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| CN103871664A (en) | 2014-06-18 |
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