CN108648863A - 一种耐磨型轨道交通机车电缆 - Google Patents
一种耐磨型轨道交通机车电缆 Download PDFInfo
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- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
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Abstract
本发明公开一种耐磨型轨道交通机车电缆,包括数根导体,所述的数根导体均采用第5类镀锡铜丝与芳纶丝束丝绞合构成,束丝节距比不大于20倍,数根导体外分别包裹绝缘层构成绝缘线芯,绝缘线芯相互绞合成束构成缆芯,缆芯外依次包裹隔离层、复合屏蔽层,复合屏蔽层外包裹有铠装层,铠装层外挤塑成型有护套层,所述护套层外包覆有防水层。本发明的缆芯强度高,不易出现断芯,同时具有良好地柔软性能,此外电缆具有良好地耐高低温、耐撕裂、耐磨、防水、屏蔽与弯曲特征性能。
Description
技术领域
本发明涉及电缆,具体是一种耐磨型轨道交通机车电缆。
背景技术
随着国家铁路系统的快速发展,对机车电缆的需求量逐年增加,考虑到在一些机车车辆的操控系统中,因散热和外界直晒温度高,电缆在通电情况下,产生较高热量,极易出现绝缘层软化,产生电缆短路,进而引发火灾等事故。常见的云母带绕包,极易出现受潮,导致耐火效果不好,这些缺点和技术限制了产品的使用,造成安全隐患和事故,另一方面,操控系统中常用于小截面电缆,在运行过程中,极易出现导体拉伤拉断情况,造成断路,所以急需开发具有无卤、低烟、耐磨、耐高温、耐火、高强度等性能的环保型电缆,用于铁路机车车辆用电缆。
发明内容
本发明的目的在于提供一种耐磨型轨道交通机车电缆,以解决上述背景技术中提出的问题。
为了解决上述技术问题,本发明采用的技术方案是:
一种耐磨型轨道交通机车电缆,包括数根导体,所述的数根导体均采用第5类镀锡铜丝与芳纶丝束丝绞合构成,束丝节距比不大于20倍,数根导体外分别包裹绝缘层构成绝缘线芯,绝缘线芯相互绞合成束构成缆芯,缆芯外依次包裹隔离层、复合屏蔽层,复合屏蔽层外包裹有铠装层,铠装层外挤塑成型有护套层,所述护套层外包覆有防水层。
进一步的,所述的绝缘层采用材料为低烟无卤阻燃辐照交联聚烯烃。
进一步的,所述护套层采用尼龙材质。
进一步的,所述隔离层采用耐高温聚酯带重叠绕包构成,绕包搭盖率不小于25%。
本发明的有益效果是:
本发明结构提供一种耐磨型轨道交通机车电缆,其结构简单、新颖,电缆导体采用高强度芳纶丝增加导体抗拉拽能力,导体外绕包陶瓷化耐火复合带,能在高温燃烧时形成坚固保护层,电缆绝缘层采用耐温125℃、低烟无卤阻燃交联聚烯烃材料,通过电子辐照交联工艺使其交联,使得电缆具有良好的低烟、无卤、阻燃性能,并具有耐温等级高(125℃)、耐环境老化性能优异,满足使用要求;缆芯外采用绕包陶瓷化耐火复合带,在结构中与导体包带形成多层防火层,电缆屏蔽层采用双层屏蔽结构,不仅能有效的抑制“串音”现象的发生,同时,采用镀锡铜丝和芳纶丝编织,能在一定程度上作为承受外界较强拉力影响,起到芯线保护作用,尤其是截面较小电缆在连接部位,抗拉强度作用更为突出;电缆护套层采用尼龙护套制成,其较强的耐磨性能能有效避免因摩擦引起电缆损伤。
附图说明
下面结合附图和具体实施方式对本发明作进一步详细的说明。
图1是本发明结构示意图。
具体实施方式
下面将结合附图对本发明的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
如图1所示,本发明提供一种耐磨型轨道交通机车电缆,包括数根导体1,所述的数根导体1均采用第5类镀锡铜丝1-1与芳纶丝1-2束丝绞合构成,束丝节距比不大于20倍,数根导体1外分别包裹绝缘层2构成绝缘线芯,绝缘线芯相互绞合成束构成缆芯,缆芯外依次包裹隔离层3、复合屏蔽层4,复合屏蔽层4外包裹有铠装层5,可提高电缆强度,铠装层5外挤塑成型有护套层6,所述护套层6外包覆有防水层7。
所述的绝缘层2采用材料为低烟无卤阻燃辐照交联聚烯烃。
所述护套层6采用尼龙材质。
所述隔离层3采用耐高温聚酯带重叠绕包构成,绕包搭盖率不小于25%。
以上所述的本发明实施方式,并不构成对本发明保护范围的限定,任何在本发明的精神和原则之内所作的修改、等同替换和改进等,均应包含在本发明的权利要求保护范围之内。
Claims (4)
1.一种耐磨型轨道交通机车电缆,包括数根导体(1),其特征在于,所述的数根导体(1)均采用第5类镀锡铜丝(1-1)与芳纶丝(1-2)束丝绞合构成,束丝节距比不大于20倍,数根导体(1)外分别包裹绝缘层(2)构成绝缘线芯,绝缘线芯相互绞合成束构成缆芯,缆芯外依次包裹隔离层(3)、复合屏蔽层(4),复合屏蔽层(4)外包裹有铠装层(5),铠装层(5)外挤塑成型有护套层(6),所述护套层(6)外包覆有防水层(7)。
2.根据权利要求1所述的耐磨型轨道交通机车电缆,其特征在于,所述绝缘层(2)采用材料为低烟无卤阻燃辐照交联聚烯烃。
3.根据权利要求1所述的耐磨型轨道交通机车电缆,其特征在于,所述护套层(6)采用尼龙材质。
4.根据权利要求1所述的耐磨型轨道交通机车电缆,其特征在于,所述隔离层(3)采用耐高温聚酯带重叠绕包构成,绕包搭盖率不小于25%。
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111128447A (zh) * | 2020-01-08 | 2020-05-08 | 江苏中煤电缆有限公司 | 一种机场用中频拖曳软电缆 |
Citations (3)
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CN1963956A (zh) * | 2006-11-14 | 2007-05-16 | 江苏宏图高科技股份有限公司 | 新型无卤低烟阻燃铠装电缆 |
CN203085219U (zh) * | 2013-01-15 | 2013-07-24 | 安徽明星电缆有限公司 | 一种耐油、耐高温、耐磨环保型铁路机车信号电缆 |
CN203966616U (zh) * | 2014-06-06 | 2014-11-26 | 兴乐电缆有限公司 | 一种舰船用高抗拉柔性耐腐型消磁电缆 |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN1963956A (zh) * | 2006-11-14 | 2007-05-16 | 江苏宏图高科技股份有限公司 | 新型无卤低烟阻燃铠装电缆 |
CN203085219U (zh) * | 2013-01-15 | 2013-07-24 | 安徽明星电缆有限公司 | 一种耐油、耐高温、耐磨环保型铁路机车信号电缆 |
CN203966616U (zh) * | 2014-06-06 | 2014-11-26 | 兴乐电缆有限公司 | 一种舰船用高抗拉柔性耐腐型消磁电缆 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111128447A (zh) * | 2020-01-08 | 2020-05-08 | 江苏中煤电缆有限公司 | 一种机场用中频拖曳软电缆 |
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