CN103426541A - Low-smoke low-halogen flame-retardant power cable - Google Patents
Low-smoke low-halogen flame-retardant power cable Download PDFInfo
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- CN103426541A CN103426541A CN2013103270455A CN201310327045A CN103426541A CN 103426541 A CN103426541 A CN 103426541A CN 2013103270455 A CN2013103270455 A CN 2013103270455A CN 201310327045 A CN201310327045 A CN 201310327045A CN 103426541 A CN103426541 A CN 103426541A
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Abstract
The invention relates to a low-smoke low-halogen flame-retardant power cable which comprises three insulated electric wire cores. Each insulated electric wire core consists of a copper conductive wire core, a wrapped crosslinked polyethylene insulating layer and a polyolefin inner sheath, wherein the polyolefin inner sheath is a halogen-free flame-retardant or low-halogen flame-retardant type sheath. Low-halogen flame-retardant filling materials filled among the insulated electric wire cores, and a halogen-free flame-retardant wrapping tape is wrapped outside the low-halogen flame-retardant filling materials. The power cable performance can meet the requirements of GB/T12706, GB/T19666, IEC60332-3, IEC60754-2 and other standards. The low-smoke low-halogen 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 and low halogen 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 low smoke and zero halogen or the low halogen fire-resistant cable material 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 and low halogen power cable.
In order to solve the problems of the technologies described above, the invention provides following technical scheme:
A kind of low smoke and low halogen power cable, comprise three eradication edge wire core, it is characterized in that: be filled with the low fire-retardant packing material of halogen between described insulated electro core, and the fire-retardant packing material of described low halogen is coated with the halogen-free flameproof band.
Wherein, described insulated electro core is by crosslinked polyetylene insulated layer and the polyolefin inner sheath of conductive copper wire core and coating.
Wherein, described polyolefin inner sheath is halogen-free anti-flaming polyolefin inner sheath or low halogen fire retardant polyolefin inner sheath.
Wherein, the conductor cross sectional area of described insulated electro core is 1.5-240mm
2, the external diameter of described power cable is 10.2-50.7mm.
Compared with prior art, the present invention has following beneficial effect:
The invention provides a kind of low smoke and low halogen power cable, it has adopted Halogen or low halogen fire proofing, 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 and low halogen 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 a kind of low smoke and low halogen power cable of the present embodiment, comprise three eradication edge wire core, described insulated electro core is by crosslinked polyetylene insulated layer and the polyolefin inner sheath of conductive copper wire core and coating, and described polyolefin inner sheath is halogen-free flame-retardant or low halogen flame retardant type; Be filled with the low fire-retardant packing material of halogen between described insulated electro core, and the fire-retardant packing material of described low halogen is coated with the halogen-free flameproof band.The specification of the described power cable of the present embodiment is as follows: the conductor cross sectional area of insulated electro core is 1.5-240mm
2, the external diameter of described power cable is 10.2-50.7mm.
Wherein, the fire-retardant packing material of described low halogen, raw material by following parts by weight forms: 2 of the zinc stearate of the silicon dioxide 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 polyvinyl chloride of 5-10 weight portion, 3-5 weight portion, the N-caprolactam of 1-2 weight portion, 3-5 weight portion, the barium sulfate of 1-2 weight portion, 3-5 weight portion, the dilauroyl peroxide of 0.5-1 weight portion and 0.3-0.5 weight portion, 6-di-tert-butyl-4-methy phenol.The fire-retardant packing material of described low halogen, prepare by screw extruder, and temperature is controlled at 180-200 ℃.The fire-retardant packing material dielectric strength>=25.0MV/m of described low halogen, normal temperature lower volume resistivity (20 ℃)>=2.5 * 10
11Ohm meter, elongation at break>=225%.
Wherein, described halogen-free flameproof band, raw material by following weight portion umber forms: 20-30 weight portion high-density polyethylene resin, the MDI of 35-40 weight portion, the PTMG 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, the 6-di-tert-butyl-4-methy phenol 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 28-32MPa, percentage elongation are 550%-600%.
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 (8)
1. a low smoke and low halogen power cable, comprise three eradication edge wire core, it is characterized in that: be filled with the low fire-retardant packing material of halogen between described insulated electro core, and the fire-retardant packing material of described low halogen is coated with the halogen-free flameproof band.
2. low smoke and low halogen power cable according to claim 1 is characterized in that: described insulated electro core is by crosslinked polyetylene insulated layer and the polyolefin inner sheath of conductive copper wire core and coating.
3. low smoke and low halogen power cable according to claim 1, it is characterized in that: described polyolefin inner sheath is halogen-free anti-flaming polyolefin inner sheath or low halogen fire retardant polyolefin inner sheath.
4. according to the described low smoke and low halogen power cable of claim 1-3 any one, it is characterized in that: the conductor cross sectional area of described insulated electro core is 1.5-240mm
2, the external diameter of described power cable is 10.2-50.7mm.
5. low smoke and low halogen power cable according to claim 4, it is characterized in that: the fire-retardant packing material of described low halogen, 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 polyvinyl chloride of 5-10 weight portion, the trimethyl silane imidazoles of 3-5 weight portion, the N-caprolactam 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, the fire-retardant packing material of described low halogen, prepare by screw extruder, and temperature is controlled at 180-200 ℃.
6. low smoke and low halogen power cable according to claim 5, is characterized in that: the fire-retardant packing material dielectric strength>=25.0MV/m of described low halogen, normal temperature lower volume resistivity (20 ℃)>=2.5 * 10
11Ohm meter, elongation at break>=225%.
7. low smoke and low halogen power cable according to claim 4, it is characterized in that: described halogen-free flameproof band, raw material by following weight portion umber forms: 20-30 weight portion high-density polyethylene resin, the MDT of 35-40 weight portion, the PTMG 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, the 6-di-tert-butyl-4-methy phenol prepares at 165-185 ℃.
8. low smoke and low halogen power cable according to claim 7, 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 28-32MPa, percentage elongation are 550%-600%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310327045.5A CN103426541B (en) | 2013-07-31 | 2013-07-31 | low-smoke low-halogen flame-retardant power cable |
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| CN201310327045.5A CN103426541B (en) | 2013-07-31 | 2013-07-31 | low-smoke low-halogen flame-retardant power cable |
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| CN103426541A true CN103426541A (en) | 2013-12-04 |
| CN103426541B CN103426541B (en) | 2016-07-06 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103871643A (en) * | 2014-02-27 | 2014-06-18 | 安徽江淮电缆集团有限公司 | Low-cost halogen-free low-smoke low-toxicity anti-flaming power cable for ships and insulating sizing material of power cable |
| WO2022037264A1 (en) * | 2020-08-20 | 2022-02-24 | 中车戚墅堰机车有限公司 | Low-halogen thin wall insulated electrical cable for locomotive |
| CN115648587A (en) * | 2022-11-24 | 2023-01-31 | 江西美园电缆集团有限公司 | Production equipment and production method of low-halogen low-smoke flame-retardant cable |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1235232A1 (en) * | 2001-02-26 | 2002-08-28 | PIRELLI CAVI E SISTEMI S.p.A. | Cable with coating of a composite material |
| CN101465176A (en) * | 2007-12-19 | 2009-06-24 | 上海胜华电缆（集团）有限公司 | Power cable for 1E grade K3 genus nuclear power plant |
-
2013
- 2013-07-31 CN CN201310327045.5A patent/CN103426541B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1235232A1 (en) * | 2001-02-26 | 2002-08-28 | PIRELLI CAVI E SISTEMI S.p.A. | Cable with coating of a composite material |
| CN101465176A (en) * | 2007-12-19 | 2009-06-24 | 上海胜华电缆（集团）有限公司 | Power cable for 1E grade K3 genus nuclear power plant |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103871643A (en) * | 2014-02-27 | 2014-06-18 | 安徽江淮电缆集团有限公司 | Low-cost halogen-free low-smoke low-toxicity anti-flaming power cable for ships and insulating sizing material of power cable |
| CN103871643B (en) * | 2014-02-27 | 2017-01-18 | 安徽江淮电缆集团有限公司 | Low-cost halogen-free low-smoke low-toxicity anti-flaming power cable for ships and insulating sizing material of power cable |
| WO2022037264A1 (en) * | 2020-08-20 | 2022-02-24 | 中车戚墅堰机车有限公司 | Low-halogen thin wall insulated electrical cable for locomotive |
| CN115648587A (en) * | 2022-11-24 | 2023-01-31 | 江西美园电缆集团有限公司 | Production equipment and production method of low-halogen low-smoke flame-retardant cable |
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|---|---|
| CN103426541B (en) | 2016-07-06 |
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