CN103426556A - Low-smoke halogen-free flame-retardant power cable - Google Patents
Low-smoke halogen-free flame-retardant power cable Download PDFInfo
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- CN103426556A CN103426556A CN2013103239486A CN201310323948A CN103426556A CN 103426556 A CN103426556 A CN 103426556A CN 2013103239486 A CN2013103239486 A CN 2013103239486A CN 201310323948 A CN201310323948 A CN 201310323948A CN 103426556 A CN103426556 A CN 103426556A
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Abstract
The invention relates to a low-smoke halogen-free flame-retardant power cable. Insulating electric wire cores form a 3+2 core structure and consist of copper conductive wire cores formed by stranding flexible copper wires and a wrapped crosslinked polyethylene insulating layer. A halogen-free flame-retardant filling material is filling among the insulating electric wire cores, a halogen-free flame-retardant wrapping tape layer is wrapped in the inside, and a halogen-free flame-retardant polyolefin sheath layer is arranged outside the halogen-free flame-retardant wrapping tape layer. The low-smoke halogen-free flame-retardant power cable can meet the requirements of GB/T12706, GB/T19666, IEC60332-3, IEC60754-2 and other standards. The low-smoke halogen-free flame-retardant power cable is fixed and arranged in places with the requirements for smoke density, acidity and flame retardance including underground buildings, large public buildings, high-rise buildings and the like with 0.6/1KV rated voltage and lower than 0.6/1KV rated voltage for power transmission and distribution.
Description
Technical field
The invention belongs to the technical field of cable design and manufacture, the present invention relates in particular a kind of low-smoke non-halogen flame-retardant power cable.
Background technology
Along with the growth continuously and healthily of China's economy, for the development of line cable industry provides huge market prospects, the temptation that Chinese market is strong, make the world all focus on Chinese market to sight, reforming and opening up to the outside world short decades, the formed huge production capacity of Chinese cable manufacturing industry allows the world regard with special esteem.Be accompanied by the continuous expansion of the industry sizes such as electric power, communication, track traffic, automobile and shipbuilding, the demand of electric wire is also being increased rapidly, can predict electric wire industry from now on and also have huge development potentiality.
At present, wires and cables industry is the second largest industry that China is only second to automobile industry, and product variety meets rate and domestic market occupation rate all over 90%.And worldwide, the Chinese electric wire gross output value has surpassed the U.S., become first electric wire producing country in the world.Be accompanied by Chinese wires and cables industry high speed development, creation of new enterprise quantity constantly rises, and industry overall technology level is largely increased.
By purposes, divide, the kind of CABLE MATERIALS mainly contains the five large classes such as power cable, control cables, instrument and meter cable, telecommunication cable and fireproof cable.At present, along with the frequent generation of electrical fire accident, the fire-retardant problem of electric wire causes everybody attention gradually.Discharging a large amount of smog and poisonous, corrosive gas during cable fire is hazards in fire, people's safe escape and fire-fighting work have been hindered in fire, make lives and properties suffer heavy losses, therefore, more and more need to use the fireproofing cable material without halide of environment-friendly type.
Summary of the invention
In order to solve the above-mentioned technical problem existed in prior art, the object of the present invention is to provide a kind of low-smoke non-halogen flame-retardant power cable.
In order to solve the problems of the technologies described above, the invention provides following technical scheme:
A kind of low-smoke non-halogen flame-retardant power cable, comprise multiply insulated electro core, it is characterized in that: be filled with the halogen-free flameproof packing material between described insulated electro core, and utilize in the halogen-free flameproof belting layer is coated on, described halogen-free flameproof belting layer has the halogen-free anti-flaming polyolefin restrictive coating outward.
The crosslinked polyetylene insulated layer of the conductive copper wire core that wherein, described insulated electro core is twisted into by soft copper wire and coating forms.
Wherein, described insulated electro core is the 3+2 cored structure, and wherein the conductor cross sectional area of 3 main cores is 4-240mm
2, the conductor cross sectional area of 2 secondary cores is 2.5-120mm
2.
Wherein, the external diameter of described power cable is 16.9-75mm.
Compared with prior art, the present invention has following beneficial effect:
The invention provides a kind of low-smoke non-halogen flame-retardant power cable, it has adopted bittern-free flame-proof material, its stable chemical performance, and environmental protection, nuisanceless, and the electric property of described cable is high, is conducive to extend the useful life of power cable.Power cable performance of the present invention meets the requirement of the standards such as GB/T12706, GB/T19666, IEC60332-3, IEC60754-2.To be applicable to rated voltage and to be 0.6/1KV and following hypogee, large public building, skyscraper etc. have the place of smoke density, acidity and fire-retardant requirement, fixedly lays and be used as the transmission & distribution electric energy.Rated voltage is 0.6/1KV, and the long-term work temperature is that 90 ℃, short circuit (maximum length in time is 5 seconds) maximum temperature are no more than 250 ℃.The requirement of burning smoke density agreement with experimental GB/T19666-2005.Fire resistance meets the requirement of GB/T19666-2005 bunched burning test category-A.The burning gases conductance is no more than 10us/mm.
The accompanying drawing explanation
The structural representation that Fig. 1 is low-smoke non-halogen flame-retardant power cable of the present invention.
Embodiment
Below in conjunction with specific embodiments and the drawings, technical scheme of the present invention is further elaborated, but embodiments of the present invention are not limited to this.
Embodiment 1
As shown in Figure 1, the described low-smoke non-halogen flame-retardant power cable of the present embodiment, its external diameter is 16.9-75mm, comprise multiply insulated electro core, described insulated electro core is the 3+2 cored structure, the conductive copper wire core 10 that described insulated electro core is twisted into by soft copper wire and the crosslinked polyetylene insulated layer 20 coated form, and wherein the conductor cross sectional area of 3 main cores is 4-240mm
2, the conductor cross sectional area of 2 secondary cores is 2.5-120mm
2.And be filled with halogen-free flameproof packing material 30 between described insulated electro core, and and utilizing in halogen-free flameproof belting layer 40 is coated on, described halogen-free flameproof belting layer 40 is outer has halogen-free anti-flaming polyolefin restrictive coating 50.
Wherein, described halogen-free flameproof packing material, raw material by following parts by weight forms: 2 of the dilauroyl peroxide of the barium sulfate of the zinc oxide of the trimethyl silane imidazoles of the polymethyl methacrylate of the high-density polyethylene resin of 60-80 weight portion, 10-20 weight portion, the Merlon of 5-10 weight portion, 3-5 weight portion, the N-caprolactam of 1-2 weight portion, 1-2 weight portion, the silicon dioxide of 3-5 weight portion, 1-2 weight portion, the zinc stearate of 3-5 weight portion, 0.5-1 weight portion and 0.3-0.5 weight portion, 6-di-tert-butyl-4-methy phenol.Described halogen-free flameproof packing material, prepare by screw extruder, and temperature is controlled at 180-205 ℃.Described halogen-free flameproof packing material dielectric strength>=25.0MV/m, normal temperature lower volume resistivity (20 ℃)>=2.5 * 10
11Ohm meter, elongation at break>=250%.
Wherein, described halogen-free flameproof belting layer, raw material by following weight portion umber forms: 20-30 weight portion high-density polyethylene resin, the MDI of 35-40 weight portion, the polypropylene oxide glycol of 10-15 weight portion, the poly adipate succinic acid ester of 15-20 weight portion, 1 of 3-5 weight portion, 4-bis-(beta-hydroxyethyl)-bisphenol-A, 1 of 1-2 weight portion, the 4-butanediol, the zinc stearate of 3-5 weight portion, 0.5-0.8 the dibutyl tin dilaurate of weight portion, 0.5-0.8 2 of weight portion, the 3-epoxypropyl phenylether, 0.2-0.3 2 of weight portion, 6 of 6-di-tert-butyl-4-methy phenol and 0.05-0.1 weight portion, 6-tetramethyl piperidine alcohol ester prepares at 165-185 ℃.Described halogen-free flameproof belting layer normal temperature lower volume resistivity (20 ℃)>=2.5 * 10
11Ohm meter, tensile strength are that 28-35MPa, percentage elongation are 500%-550%.
Although the present invention elaborates technical scheme of the present invention by embodiment, but those of ordinary skill in the art is to be understood that can be without departing from the scope of the present disclosure, can adopt to be equal to and replace or the equivalent transformation form is implemented the present invention.Therefore, protection scope of the present invention is not limited to the specific embodiment of embodiment part, as long as no the execution mode that breaks away from invention essence, within all being interpreted as having dropped on the protection range of requirement of the present invention.
Claims (9)
1. a low-smoke non-halogen flame-retardant power cable, comprise multiply insulated electro core, it is characterized in that: be filled with the halogen-free flameproof packing material between described insulated electro core, and utilize in the halogen-free flameproof belting layer is coated on, described halogen-free flameproof belting layer has the halogen-free anti-flaming polyolefin restrictive coating outward.
2. low-smoke non-halogen flame-retardant power cable according to claim 1 is characterized in that: the crosslinked polyetylene insulated layer of the conductive copper wire core that described insulated electro core is twisted into by soft copper wire and coating forms.
3. low-smoke non-halogen flame-retardant power cable according to claim 2, it is characterized in that: described insulated electro core is the 3+2 cored structure, wherein the conductor cross sectional area of 3 main cores is 4-240mm
2, the conductor cross sectional area of 2 secondary cores is 2.5-120mm
2.
4. low-smoke non-halogen flame-retardant power cable according to claim 3, it is characterized in that: the external diameter of described power cable is 16.9-75mm.
5. according to the described low-smoke non-halogen flame-retardant power cable of claim 1-4 any one, it is characterized in that: described halogen-free flameproof packing material, raw material by following parts by weight forms: the high-density polyethylene resin of 60-80 weight portion, the polymethyl methacrylate of 10-20 weight portion, the Merlon of 5-10 weight portion, the trimethyl silane imidazoles of 3-5 weight portion, the N-caprolactam of 1-2 weight portion, the zinc oxide of 1-2 weight portion, the silicon dioxide of 3-5 weight portion, the barium sulfate of 1-2 weight portion, the zinc stearate of 3-5 weight portion, 0.5-1 2 of the dilauroyl peroxide of weight portion and 0.3-0.5 weight portion, the 6-di-tert-butyl-4-methy phenol.
6. low-smoke non-halogen flame-retardant power cable according to claim 5 is characterized in that: described halogen-free flameproof packing material, by screw extruder, prepare, and temperature is controlled at 180-205 ℃.
7. low-smoke non-halogen flame-retardant power cable according to claim 6, is characterized in that: described halogen-free flameproof packing material dielectric strength>=25.0MV/m, specific insulation in the time of 20 ℃>=2.5 * 10
11Ohm meter, elongation at break>=250%.
8. according to the described low-smoke non-halogen flame-retardant power cable of claim 1-4 any one, it is characterized in that: described halogen-free flameproof belting layer, raw material by following weight portion umber forms: 20-30 weight portion high-density polyethylene resin, the MDI of 35-40 weight portion, the polypropylene oxide glycol of 10-15 weight portion, the poly adipate succinic acid ester of 15-20 weight portion, 1 of 3-5 weight portion, 4-bis-(beta-hydroxyethyl)-bisphenol-A, 1 of 1-2 weight portion, the 4-butanediol, the zinc stearate of 3-5 weight portion, 0.5-0.8 the dibutyl tin dilaurate of weight portion, 0.5-0.8 2 of weight portion, the 3-epoxypropyl phenylether, 0.2-0.3 2 of weight portion, 6 of 6-di-tert-butyl-4-methy phenol and 0.05-0.1 weight portion, 6-tetramethyl piperidine alcohol ester prepares at 165-185 ℃.
9. low-smoke non-halogen flame-retardant power cable according to claim 8, is characterized in that: described halogen-free flameproof belting layer normal temperature lower volume resistivity (20 ℃)>=2.5 * 10
11Ohm meter, tensile strength are that 28-35MPa, percentage elongation are 500%-550%.
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| CN201310323948.6A CN103426556B (en) | 2013-07-30 | 2013-07-30 | Low-smoke halogen-free flame-retardant power cable |
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| CN201310323948.6A CN103426556B (en) | 2013-07-30 | 2013-07-30 | Low-smoke halogen-free flame-retardant power cable |
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| CN103426556A true CN103426556A (en) | 2013-12-04 |
| CN103426556B CN103426556B (en) | 2016-02-03 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103824635A (en) * | 2014-03-03 | 2014-05-28 | 南通米兰特电气有限公司 | Novel low-smoke halogen-free flame-retardant electric wire and cable |
| CN104575771A (en) * | 2014-12-31 | 2015-04-29 | 东莞市高能磁电技术有限公司 | Halogen-free flame retardant insulated power cable adopting polyphenyl ether composite material |
| CN104575770A (en) * | 2014-12-31 | 2015-04-29 | 东莞市高能磁电技术有限公司 | Halogen-free flame retardant insulated power cable adopting high-tenacity PS material |
| CN104599776A (en) * | 2014-12-31 | 2015-05-06 | 东莞市高能磁电技术有限公司 | Halogen-free flame-retardant insulated electric cable using polybutylene terephthalate composite material |
| CN104616805A (en) * | 2014-12-31 | 2015-05-13 | 东莞市高能磁电技术有限公司 | Halogen-free and flame-proof insulating power cable employing low-density high-strength composite material |
| CN104616804A (en) * | 2014-12-31 | 2015-05-13 | 东莞市高能磁电技术有限公司 | Halogen-free and flame-proof insulating power cable employing polytetrafluoroethylene composite material |
| US10370514B2 (en) | 2014-06-23 | 2019-08-06 | Southwire Company, Llc | UV-resistant superhydrophobic coating compositions |
| US10889727B1 (en) | 2018-06-14 | 2021-01-12 | Southwire Company, Llc | Electrical cable with improved installation and durability performance |
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| JP2000106041A (en) * | 1998-09-29 | 2000-04-11 | Yazaki Corp | Flexible non-halogen wire cable |
| CN2599719Y (en) * | 2003-02-13 | 2004-01-14 | 河北宝丰线缆有限公司 | Environmental protection cross-linking polyethylene insulated fire resistant control cable |
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2013
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| JP2000106041A (en) * | 1998-09-29 | 2000-04-11 | Yazaki Corp | Flexible non-halogen wire cable |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103824635A (en) * | 2014-03-03 | 2014-05-28 | 南通米兰特电气有限公司 | Novel low-smoke halogen-free flame-retardant electric wire and cable |
| US10370514B2 (en) | 2014-06-23 | 2019-08-06 | Southwire Company, Llc | UV-resistant superhydrophobic coating compositions |
| US11001696B2 (en) | 2014-06-23 | 2021-05-11 | Southwire Company, Llc | UV-resistant superhydrophobic coating compositions |
| CN104575771A (en) * | 2014-12-31 | 2015-04-29 | 东莞市高能磁电技术有限公司 | Halogen-free flame retardant insulated power cable adopting polyphenyl ether composite material |
| CN104575770A (en) * | 2014-12-31 | 2015-04-29 | 东莞市高能磁电技术有限公司 | Halogen-free flame retardant insulated power cable adopting high-tenacity PS material |
| CN104599776A (en) * | 2014-12-31 | 2015-05-06 | 东莞市高能磁电技术有限公司 | Halogen-free flame-retardant insulated electric cable using polybutylene terephthalate composite material |
| CN104616805A (en) * | 2014-12-31 | 2015-05-13 | 东莞市高能磁电技术有限公司 | Halogen-free and flame-proof insulating power cable employing low-density high-strength composite material |
| CN104616804A (en) * | 2014-12-31 | 2015-05-13 | 东莞市高能磁电技术有限公司 | Halogen-free and flame-proof insulating power cable employing polytetrafluoroethylene composite material |
| US10889727B1 (en) | 2018-06-14 | 2021-01-12 | Southwire Company, Llc | Electrical cable with improved installation and durability performance |
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| Publication number | Publication date |
|---|---|
| CN103426556B (en) | 2016-02-03 |
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