CN2836187Y - 防鼠内屏蔽铁路数字信号电缆 - Google Patents

防鼠内屏蔽铁路数字信号电缆 Download PDF

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Publication number
CN2836187Y
CN2836187Y CN 200620070083 CN200620070083U CN2836187Y CN 2836187 Y CN2836187 Y CN 2836187Y CN 200620070083 CN200620070083 CN 200620070083 CN 200620070083 U CN200620070083 U CN 200620070083U CN 2836187 Y CN2836187 Y CN 2836187Y
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China
Prior art keywords
digital signal
cable core
railway digital
sheath layer
signal cable
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CN 200620070083
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English (en)
Inventor
应志忠
王利勇
江红芬
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Tongding Interconnection Information Co Ltd
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TONGDING GROUP CO Ltd
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Abstract

一种防鼠内屏蔽铁路数字信号电缆，包括缆芯，所述的缆芯包括多级信号线，至少一组所述的信号线为内屏蔽四线组，所述的缆芯外侧由内向外依次设置有内护套层、铝护套层、钢丝铠装层、外护套层。由于钢丝铠装层的强度较高，其耐啮咬性能强，可防止由于老鼠等动物的啮咬而被破坏，故可提高铁路数字信号传输的安全可靠性，且还可延长电缆的使用寿命。

Description

防鼠内屏蔽铁路数字信号电缆
技术领域
本实用新型涉及一种内屏蔽铁路数字信号电缆。
背景技术
现有技术中，内屏蔽铁路数字信号电缆包括护套层、设置于护套层内的缆芯，缆芯包括至少一组内屏蔽四线组，护套层在对缆芯起绝缘保护作用和抗腐蚀作用，但当这种电缆在野外应用时，易受到老鼠等动物的侵蚀破坏，导致电缆被损坏而无法使用，且会由于缆芯被破坏而使通信信号中断，给铁路数字信号传输造成安全隐患。
发明内容
本实用新型的目的是提供一种防鼠内屏蔽铁路数字信号电缆，其可有效防止老鼠等动物破坏。
本实用新型的技术方案是：一种防鼠内屏蔽铁路数字信号电缆，包括缆芯，所述的缆芯包括多组信号线，至少一组所述的信号线为内屏蔽四线组，所述的缆芯外侧由内向外依次设置有内护套层、钢丝铠装层、外护套层。
所述的内护套层与钢丝铠装层之间设置有铝护套层。
本实用新型与现有技术相比具有下列优点：由于钢丝铠装层的强度较高，其耐啮咬性能强，可防止由于老鼠等动物的啮咬而被破坏，故可提高铁路数字信号传输的安全可靠性，且还可延长电缆的使用寿命。
附图说明
附图1为本实用新型的主剖视图；
附图2为本实用新型的内屏蔽四线组的主剖视放大图；
1、外护套层；2、钢丝铠装层；3、铝护套层；4、内护套层；5、聚酯带层；6、内屏蔽四线组；7、塑料护套层；8、内屏蔽层；9、聚酯扎纱线；10、单线。
具体实施方式
参见附图1所示，一种防鼠内屏蔽铁路数字信号电缆，包括缆芯，所述的缆芯包括多组信号线，至少一组所述的信号线为内屏蔽四线组6，所述的缆芯外侧由内向外依次设置有内护套层4、钢丝铠装层2、外护套层1。所述的缆芯外侧还包有聚酯带层5，所述的内护套层4设置在聚酯带层5外侧。
所述的内护套层4与钢丝铠装层2之间设置有铝护套层3，钢丝铠装层2由重金属镀锌钢丝铠装而成，其强度非常高，材质牢固，可防止该电缆在野外使用时受老鼠啮咬而被破坏，而铝护套层3主要起到屏蔽作用，同时，由于铝护套层3的耐啮咬性能较好，故又可对缆芯起进一步的保护作用。外护套层1由塑料材质制成，具有绝缘保护作用，该外护套层1通常采用挤塑的加工方式粘合在钢丝铠装层2的外表面上。
参见附图2所示，内屏蔽四线组6包括四根相绞合的单线10，四根单线10绞合后截面呈星形，四根单线10绞合后用聚酯扎纱线9包扎，在四根单线10的外侧设置有起屏蔽作用的内屏蔽层8，在内屏蔽层8的外侧设置有起绝缘保护作用的塑料护套层7。

Claims (2)

1、一种防鼠内屏蔽铁路数字信号电缆，包括缆芯，所述的缆芯包括多组信号线，至少一组所述的信号线为内屏蔽四线组(6)，其特征在于：所述的缆芯外侧由内向外依次设置有内护套层(4)、钢丝铠装层(2)、外护套层(1)。
2、根据权利要求1所述的防鼠内屏蔽铁路数字信号电缆，其特征在于：所述的内护套层(4)与钢丝铠装层(2)之间设置有铝护套层(3)。
CN 200620070083 2006-03-07 2006-03-07 防鼠内屏蔽铁路数字信号电缆 Expired - Lifetime CN2836187Y (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103688315A (zh) * 2011-04-06 2014-03-26 科络普拉斯特弗里茨米勒有限公司 用于传输数据信号的电线

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103688315A (zh) * 2011-04-06 2014-03-26 科络普拉斯特弗里茨米勒有限公司 用于传输数据信号的电线

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