CN103680722A - 抗干扰信号电缆 - Google Patents

抗干扰信号电缆 Download PDF

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CN103680722A
CN103680722A CN201310648431.4A CN201310648431A CN103680722A CN 103680722 A CN103680722 A CN 103680722A CN 201310648431 A CN201310648431 A CN 201310648431A CN 103680722 A CN103680722 A CN 103680722A
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copper
alloy
bronze medal
wrapped
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CN103680722B (zh
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王国权
陆春良
陈劲
淮平
林磊
陆荷英
刘华娟
吴佳星
嵇德海
余建朝
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Jiangsu Hengtong Wire and Cable Technology Co Ltd
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Priority to CN201610263918.4A priority Critical patent/CN105913929A/zh
Priority to CN201510512028.8A priority patent/CN105244112A/zh
Priority to CN201510508601.8A priority patent/CN105225761A/zh
Priority to CN201510508727.5A priority patent/CN105225762A/zh
Priority to CN201510508912.4A priority patent/CN105225740A/zh
Priority to CN201610263678.8A priority patent/CN105913921A/zh
Priority to CN201310648431.4A priority patent/CN103680722B/zh
Priority to CN201610263899.5A priority patent/CN105913922A/zh
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29Protection against damage caused by extremes of temperature or by flame
    • H01B7/295Protection against damage caused by extremes of temperature or by flame using material resistant to flame
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/02Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
    • H01B1/026Alloys based on copper
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00Communication cables or conductors
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00Communication cables or conductors
    • H01B11/005Quad constructions
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00Communication cables or conductors
    • H01B11/02Cables with twisted pairs or quads
    • H01B11/06Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00Communication cables or conductors
    • H01B11/02Cables with twisted pairs or quads
    • H01B11/06Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
    • H01B11/10Screens specially adapted for reducing interference from external sources
    • H01B11/1008Features relating to screening tape per se
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00Communication cables or conductors
    • H01B11/02Cables with twisted pairs or quads
    • H01B11/12Arrangements for exhibiting specific transmission characteristics
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
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    • H01B7/0009Details relating to the conductive cores
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/1875Multi-layer sheaths
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/20Metal tubes, e.g. lead sheaths
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/20Metal tubes, e.g. lead sheaths
    • H01B7/207Metal tubes, e.g. lead sheaths composed of iron or steel
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/28Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H01B7/2806Protection against damage caused by corrosion

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Abstract

本发明公开一种抗干扰信号电缆,包括2~20个由聚酯带绕包的导线组,此导线组包括四根由7根镀锡铜丝绞合而成的绞合单线;此绞合单线外表面具有一内绝缘层,一包覆层包覆于2~20个导线组外表面,一第一铜层包覆于内绝缘层外表面,一钢层包覆于第一铜层外表面,此钢层外表面包覆有第二铜层;第一铜层和钢层内表面之间通过第一合金层密封连接,第二铜层和钢层外表面之间通过第二合金层密封连接;一外护层包覆于第二铜层外表面;第一合金层由铜70~82%、铁14~22%、钼3~5%、铬2~3%、碳0.8~1%组成;第二合金层由铜25~35%、铁60~70%、钼3~5%、铬2~3%、碳0.8~1%组成。本发明抗干扰信号电缆,降低了电缆的传输衰减,提高了密合性和抗机械外力,也保证使用过程中不开裂。

Description

抗干扰信号电缆
技术领域
本发明涉及轨道交通信号电缆领域,具体涉及一种抗干扰信号电缆。
背景技术
为了提高电缆抗外界电磁场的干扰能力以及防止电缆运行时向外界辐射电磁场,提高电缆运行的稳定可靠性,传输电缆的护层结构一般均要设置抗电磁干扰的屏蔽层。传统的电缆护层一般由以下的结构层构成:包覆在电缆缆芯外层的包覆层, 通用包覆层由挤制的塑料套或各种带材绕包而成的包覆层,其作用是使缆芯结构紧密并防止工艺过程中烫伤或损伤,起到保护缆芯的作用。包覆层外为电场屏蔽层,电场屏蔽层为铜带,形成电场屏蔽体,其作用是防止外界电场对电缆产生影响。电场屏蔽层外是挤制的塑料内衬层,其作用是保护电缆的电场屏蔽层在磁场屏蔽层加工生产过程中不受损伤。塑料内衬层外层是电缆的磁场保护层及金属材质的防护层,磁场屏蔽及金属防护层主要有钢带,其主要作用是实现电缆的磁场屏蔽,防止电缆受到外界的磁场干扰,并提高电缆抗机械外力的能力。最外层为外护套,是电缆的阻燃、防水、防紫外线、防白蚁等的功能护层。
上述电缆的护层特点是结构比较繁杂,电缆外径大、电缆重,制造过程的工艺复杂且制造成本较高,施工成本也较高,电缆的弯曲性能相对较差。屏蔽铜带或铝带因强度所限,在电缆制造及使用过程中容易断裂而造成屏蔽体不连续的危害,导致系统运行存在安全隐患。
发明内容
本发明目的是提供一种抗干扰信号电缆,此抗干扰信号电缆,降低了电缆的传输衰减,提高了密合性和抗机械外力,也保证使用过程中不开裂。
为达到上述目的,本发明采用的技术方案是:一种抗干扰信号电缆,包括2~20个由聚酯带绕包的导线组,此导线组包括四根由7根镀锡铜丝绞合而成的绞合单线,所述7根镀锡铜丝中1根镀锡铜丝位于中心位置,其余6根镀锡铜丝绞合于位于中心的镀锡铜丝外表面;
此绞合单线外表面具有一内绝缘层,一包覆层包覆于所述2~20个导线组外表面,一第一铜层包覆于所述内绝缘层外表面,一钢层包覆于所述第一铜层外表面,此钢层外表面包覆有第二铜层;所述第一铜层和钢层内表面之间通过第一合金层密封连接,所述第二铜层和钢层外表面之间通过第二合金层密封连接;一外护层包覆于所述第二铜层外表面;
所述第一合金层由铜70~82%、铁14~22%、钼3~5%、铬2~3%、碳0.8~1%组成;所述第二合金层由铜25~35%、铁60~70%、钼3~5%、铬2~3%、碳0.8~1%组成。
上述技术方案中进一步改进技术方案如下:
上述方案中,所述聚酯带厚度为0.03~0.06 mm。
由于上述技术方案运用,本发明与现有技术相比具有下列优点和效果:
本发明抗干扰信号电缆,位于中心的钢层有利于吸收电磁场中的磁场,位于钢层内外侧的第一铜层、第二铜层有利于吸收电场,电场经2次吸收提高了屏蔽性能,且第一铜层外表面包覆有钢层,此钢层外表面包覆有第二铜层,第一铜层和钢层内表面之间通过第一合金层密封连接,所述第二铜层和钢层外表面之间通过第二合金层密封连接,第一合金层9由铜70~82%、铁14~22%、钼3~5%、铬2~3%组成;所述第二合金层10由铜25~35%、铁60~70%、钼3~5%、铬2~3%组成,上述结构结合特定配方的合金层大大提高了屏蔽性能和耐腐蚀性,降低了电缆的传输衰减,提高了密合性和抗机械外力,也保证使用过程中不开裂;其次,本发明产品成型性、延伸性、良导电性也得到了改善,而且具有提高了抗拉强度和抗冲击性。
附图说明
附图1为本发明抗干扰信号电缆结构示意图。
以上附图中:1、聚酯带;2、导线组;3、绞合单线;4、内绝缘层;5、包覆层;6、第一铜层;7、钢层;8、第二铜层;9、第一合金层;10、第二合金层;11、外护层;12、镀锡铜丝。
具体实施方式
下面结合附图及实施例对本发明作进一步描述:
实施例1~3:一种抗干扰信号电缆,包括4个由聚酯带1绕包的导线组2,此导线组2包括四根由7根镀锡铜丝绞合而成的绞合单线3,所述7根镀锡铜丝中1根镀锡铜丝位于中心位置,其余6根镀锡铜丝绞合于位于中心的镀锡铜丝外表面;
此绞合单线3外表面具有一内绝缘层4,一包覆层5包覆于所述4个导线组2外表面,一第一铜层6包覆于所述内绝缘层4外表面,一钢层7包覆于所述第一铜层6外表面,此钢层7外表面包覆有第二铜层8;所述第一铜层6和钢层7内表面之间通过第一合金层9密封连接,所述第二铜层8和钢层7外表面之间通过第二合金层10密封连接;一外护层11包覆于所述第二铜层8外表面;
所述第一合金层9由铜70~82%、铁14~22%、钼3~5%、铬2~3%、碳0.8~1%组成;所述第二合金层10由铜25~35%、铁60~70%、钼3~5%、铬2~3%、碳0.8~1%组成,如表1所示。
表1
Figure 738751DEST_PATH_IMAGE002
上述聚酯带1厚度为0.03~0.06 mm。
电流沿着阻力最小的位于钢层7内、外表面的第一铜层6、第二铜层8流动,第一铜层6、第二铜层8是电场屏蔽层,位于中间层的钢层7,具备了良好的导磁特性,是磁场屏蔽层,上述复合结构的综合屏蔽层,在具备良好的导电、导磁功能特点(电磁场屏蔽)的同时,大幅提高了密合性和抗机械外力,也保证使用过程中不开裂,解决了屏蔽层在电缆制造及使用过程中断裂而造成屏蔽体不连续的危害和安全隐患,同时在磁场屏蔽层外均匀包覆铜层,使磁场屏蔽层具有良好的抗氧化、耐腐蚀的功能特点。
  表2
测试电压 10V/km 20V/km 50V/km 110V/km 200V/km 300V/km 500V/km
实施例1屏蔽系数 0.17 0.146 0.10 0.08 0.045 0.05 0.065
实施例2屏蔽系数 0.172 0.15 0.10 0.08 0.05 0.052 0.062
实施例3屏蔽系数 0.169 0.152 0.10 0.08 0.052 0.05 0.06
上述实施例1~3屏蔽层的耐腐蚀性能如下:
人造气氛腐蚀试验  盐雾试验            ≥8,
通常凝露条件下的二氧化硫腐蚀试验      ≥8,
金属材料试验均匀腐蚀试验
酸溶液:( PH值:2±0.2)    ≤0.03 mm/a,
盐溶液:(PH值:7±0.2)     ≤0.03 mm/a,
碱溶液:(PH值:11±0.2)    ≤0.03 mm/a。
上述耐腐蚀性能涉及到电缆应用中极限酸碱盐环境及空气或土壤中的二氧化硫腐蚀等极端环境。
本技术的成功开发,在保证电缆产品正常的传导特性的同时,大幅降低了电缆的材料成本,降低了产品的制造成本及工程造价,具有可观的经济效益、社会效益和广阔的市场前景。
上述实施例只为说明本发明的技术构思及特点,其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以实施,并不能以此限制本发明的保护范围。凡根据本发明精神实质所作的等效变化或修饰,都应涵盖在本发明的保护范围之内。

Claims (2)

1. 一种抗干扰信号电缆,其特征在于:包括2~20个由聚酯带(1)绕包的导线组(2),此导线组(2)包括四根由7根镀锡铜丝(12)绞合而成的绞合单线(3),所述7根镀锡铜丝(12)中1根镀锡铜丝(12)位于中心位置,其余6根镀锡铜丝(12)绞合于位于中心的镀锡铜丝(12)外表面;
此绞合单线(3)外表面具有一内绝缘层(4),一包覆层(5)包覆于所述2~20个导线组(2)外表面,一第一铜层(6)包覆于所述内绝缘层(4)外表面,一钢层(7)包覆于所述第一铜层(6)外表面,此钢层(7)外表面包覆有第二铜层(8);所述第一铜层(6)和钢层(7)内表面之间通过第一合金层(9)密封连接,所述第二铜层(8)和钢层(7)外表面之间通过第二合金层(10)密封连接;一外护层(11)包覆于所述第二铜层(8)外表面;
所述第一合金层(9)由铜70~82%、铁14~22%、钼3~5%、铬2~3%、碳0.8~1%组成;所述第二合金层(10)由铜25~35%、铁60~70%、钼3~5%、铬2~3%、碳0.8~1%组成。
2. 根据权利要求1所述的抗干扰信号电缆,其特征在于:所述聚酯带(1)厚度为0.03~0.06 mm。
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Priority Applications (9)

Application Number Priority Date Filing Date Title
CN201510508601.8A CN105225761A (zh) 2013-12-04 2013-12-04 低衰减信号传输电缆
CN201510508727.5A CN105225762A (zh) 2013-12-04 2013-12-04 抗电磁干扰铁路数字信号电缆
CN201510508912.4A CN105225740A (zh) 2013-12-04 2013-12-04 多功能轨道交通数字信号电缆
CN201610263678.8A CN105913921A (zh) 2013-12-04 2013-12-04 高阻燃轨道交通用数据传输电缆
CN201610263918.4A CN105913929A (zh) 2013-12-04 2013-12-04 高阻燃铁路信号电缆
CN201610263899.5A CN105913922A (zh) 2013-12-04 2013-12-04 轨道交通信号系统用阻燃电缆
CN201510512028.8A CN105244112A (zh) 2013-12-04 2013-12-04 耐腐蚀型抗干扰数字信号缆
CN201510512030.5A CN105244114A (zh) 2013-12-04 2013-12-04 具有综合屏蔽功能的轨道交通信号电缆
CN201310648431.4A CN103680722B (zh) 2013-12-04 2013-12-04 抗干扰信号电缆

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