CN108648864A - 一种轨道交通用阻燃耐火信号电缆 - Google Patents

一种轨道交通用阻燃耐火信号电缆 Download PDF

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CN108648864A
CN108648864A CN201810437140.3A CN201810437140A CN108648864A CN 108648864 A CN108648864 A CN 108648864A CN 201810437140 A CN201810437140 A CN 201810437140A CN 108648864 A CN108648864 A CN 108648864A
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core
layer
cable
rail traffic
fire resistant
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毕力
高敏
陈鹏
刘勇
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ANHUI YILI CABLE Co Ltd
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ANHUI YILI CABLE Co Ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/182—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/02—Disposition of insulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/187—Sheaths comprising extruded non-metallic layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/1875—Multi-layer sheaths
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/22—Metal wires or tapes, e.g. made of steel
    • H01B7/228—Metal braid
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • 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
    • H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • 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
    • H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame

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  • Insulated Conductors (AREA)

Abstract

本发明公开一种轨道交通用阻燃耐火信号电缆，包括多组线芯，每组线芯均由数根导体以及共同包覆数根导体外侧的绝缘层构成，多组线芯相互绞合成束构成缆芯，缆芯内的多组线芯缝隙之间填充有阻燃防火石英纤维填充物，缆芯外依次包裹绕包层、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、防火、屏蔽与弯曲特征性能。

Description

一种轨道交通用阻燃耐火信号电缆
技术领域
本发明涉及电缆，具体是一种轨道交通用阻燃耐火信号电缆。
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轨道交通用阻燃耐火信号电缆，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：
一种轨道交通用阻燃耐火信号电缆，包括多组线芯，每组线芯均由数根导体以及共同包覆数根导体外侧的绝缘层构成，多组线芯相互绞合成束构成缆芯，缆芯内的多组线芯缝隙之间填充有阻燃防火石英纤维填充物，缆芯外依次包裹绕包层、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。
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轨道交通用阻燃耐火信号电缆，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，本发明提供一种轨道交通用阻燃耐火信号电缆，包括多组线芯1，每组线芯1均由数根导体1-1以及共同包覆数根导体1-1外侧的绝缘层1-2构成，多组线芯1相互绞合成束构成缆芯，缆芯内的多组线芯1缝隙之间填充有阻燃防火石英纤维填充物2，缆芯外依次包裹绕包层3、隔离层4、复合屏蔽层5，复合屏蔽层5外包裹有铠装层6，铠装层6外挤塑成型有护套层7。
所述的绝缘层1-2采用材料为低烟无卤阻燃辐照交联聚烯烃。
所述护套层7采用尼龙材质。
所述隔离层4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)

1.一种轨道交通用阻燃耐火信号电缆，，其特征在于,包括多组线芯(1)，每组线芯(1)均由数根导体(1-1)以及共同包覆数根导体(1-1)外侧的绝缘层(1-2)构成，多组线芯(1)相互绞合成束构成缆芯，缆芯内的多组线芯(1)缝隙之间填充有阻燃防火石英纤维填充物(2)，缆芯外依次包裹绕包层(3)、隔离层(4)、复合屏蔽层(5)，复合屏蔽层(5)外包裹有铠装层(6)，铠装层(6)外挤塑成型有护套层(7)。
2.根据权利要求1所述的轨道交通用阻燃耐火信号电缆，其特征在于，所述绝缘层(1-2)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所述的轨道交通用阻燃耐火信号电缆，其特征在于，所述护套层(7)采用尼龙材质。
4.根据权利要求1所述的轨道交通用阻燃耐火信号电缆，其特征在于，所述隔离层(4)采用耐高温聚酯带重叠绕包构成，绕包搭盖率不小于25％。
CN201810437140.3A 2018-05-09 2018-05-09 一种轨道交通用阻燃耐火信号电缆 Pending CN108648864A (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101656123A (zh) * 2009-09-10 2010-02-24 南京全信传输科技股份有限公司 无卤低烟阻燃环保型薄壁交联电缆及其制备方法
CN202584894U (zh) * 2012-03-28 2012-12-05 安徽太平洋电缆集团有限公司 一种防鼠咬防火耐磨型电力电缆
CN103117126A (zh) * 2013-02-21 2013-05-22 南京全信传输科技股份有限公司 低烟无卤阻燃纵向水密纵向气密电力电缆及其制备方法
CN206610667U (zh) * 2017-03-20 2017-11-03 杭州德福线缆有限公司 一种高阻燃防火电梯电缆
CN207009134U (zh) * 2017-07-24 2018-02-13 济南瑞通铁路电务有限责任公司 一种轨道交通用阻燃耐火信号电缆

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101656123A (zh) * 2009-09-10 2010-02-24 南京全信传输科技股份有限公司 无卤低烟阻燃环保型薄壁交联电缆及其制备方法
CN202584894U (zh) * 2012-03-28 2012-12-05 安徽太平洋电缆集团有限公司 一种防鼠咬防火耐磨型电力电缆
CN103117126A (zh) * 2013-02-21 2013-05-22 南京全信传输科技股份有限公司 低烟无卤阻燃纵向水密纵向气密电力电缆及其制备方法
CN206610667U (zh) * 2017-03-20 2017-11-03 杭州德福线缆有限公司 一种高阻燃防火电梯电缆
CN207009134U (zh) * 2017-07-24 2018-02-13 济南瑞通铁路电务有限责任公司 一种轨道交通用阻燃耐火信号电缆

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Application publication date: 20181012