CN203300252U - 单相铜芯xlpe电缆 - Google Patents

单相铜芯xlpe电缆 Download PDF

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Publication number
CN203300252U
CN203300252U CN2013202691255U CN201320269125U CN203300252U CN 203300252 U CN203300252 U CN 203300252U CN 2013202691255 U CN2013202691255 U CN 2013202691255U CN 201320269125 U CN201320269125 U CN 201320269125U CN 203300252 U CN203300252 U CN 203300252U
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conductor
cable
copper core
layer
phase copper
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应存世
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NINGBO RIYUE ELECTRIC WIRE AND CABLES MANUFACTURING Co Ltd
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NINGBO RIYUE ELECTRIC WIRE AND CABLES MANUFACTURING Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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    • Y02A30/14Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables

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Abstract

本实用新型公开了一种单相铜芯XLPE电缆,其特征在于,所述电缆中心置有导体,所述导体外依次包覆有导体屏蔽层、绝缘层、绝缘屏蔽层、金属屏蔽层、塑料包带、外护套,所述绝缘层为由内绝缘层和外绝缘层构成的双层结构。与现有技术相比,本实用新型通过在绝缘屏蔽层外绕包1—2层半导电带,再疏绕屏蔽铜丝,不仅安全可靠不易被击穿,而且结构简单,易于制造。

Description

单相铜芯XLPE电缆
技术领域
本实用新型属于电缆技术领域,具体涉及一种单相铜芯XLPE电缆。
背景技术
电气化铁道27.5 kV单相铜芯交联聚乙烯(XLPE)绝缘电缆适用于交流单相、工频、额定电压27.5 kV电气化铁道供电线、自耦变压器供电线,以及牵引变电所、分区所、开闭所、自耦变压器所引出的馈电线等。随着新建铁路、旧线路电气化改造和日常维护,铁道用电缆的使用量也会越来越大,具有广阔的市场前景。铁道行业标准TB/T 2822--1997《电气化铁道27.5kV单相铜芯交联聚乙烯绝缘电缆》中规定有两个型号,两个型号的电缆结构相同,选用的材料除塑料包带和护套材料不同外,其它均相同。根据生产经验,疏绕铜丝很容易“勒”进绝缘屏蔽层,严重时会损伤绝缘,导致电缆击穿。
实用新型内容
本实用新型的目的在于提供一种新结构的单相铜芯XLPE电缆,其不仅安全可靠不易被击穿,而且结构简单,易于制造,从而解决上述问题。
为实现这一目的,本实用新型的技术方案是:一种单相铜芯XLPE电缆,所述电缆中心置有导体,所述导体外依次包覆有导体屏蔽层、绝缘层、绝缘屏蔽层、金属屏蔽层、塑料包带、外护套,所述绝缘层为由内绝缘层和外绝缘层构成的双层结构。
作为优选,所述金属屏蔽层由疏绕的软铜线及其表面反向绕包的铜带构成。
作为优选,所述外护套为改性高密度聚乙烯护套。
作为优选,所述导体选用绞合紧压圆形铜导体结构。
作为优选,所述绝缘层厚度为0.6~0.7mm。
与现有技术相比,本实用新型电缆通过在绝缘屏蔽层外绕包1—2层半导电带,再疏绕屏蔽铜丝,这可以有效地保证疏绕铜丝屏蔽交联电缆的质量。电缆采用塑料带将金属屏蔽层与护套层隔离,以防止护套对金属的腐蚀。 
附图说明
图1为本实用新型的结构示意图。
其中:1.导体,2.导体屏蔽层,3.绝缘层,4.绝缘屏蔽层,5.金属屏蔽层,6.塑料包带,7.外护套。
具体实施方式  
下面参照附图结合实施例对本实用新型进一步说明。
如图1所示,一种单相铜芯XLPE电缆,所述电缆中心置有导体1,所述导体1外依次包覆有导体屏蔽层2、绝缘层3、绝缘屏蔽层4、金属屏蔽层5、塑料包带6、外护套7,所述绝缘层为由内绝缘层和外绝缘层构成的双层结构。其中,所述金属屏蔽层由疏绕的软铜线及其表面反向绕包的铜带构成;所述外护套为改性高密度聚乙烯护套;所述导体选用绞合紧压圆形铜导体结构;所述绝缘层厚度为0.6~0.7mm。
本实用新型主要针对单相铜芯XLPE电缆结构所进行的改进,以上所述仅为本实用新型较佳实施例而已,非因此即局限本实用新型的专利范围,故举凡用本实用新型说明书及图式内容所为的简易变化及等效变换,均应包含于本实用新型的专利范围内。

Claims (5)

1.一种单相铜芯XLPE电缆, 其特征在于,所述电缆中心置有导体,所述导体外依次包覆有导体屏蔽层、绝缘层、绝缘屏蔽层、金属屏蔽层、塑料包带、外护套,所述绝缘层为由内绝缘层和外绝缘层构成的双层结构。
2.根据权利要求1所述的单相铜芯XLPE电缆,其特征在于,所述金属屏蔽层由疏绕的软铜线及其表面反向绕包的铜带构成。
3.根据权利要求1所述的单相铜芯XLPE电缆,其特征在于,所述外护套为改性高密度聚乙烯护套。
4.根据权利要求1所述的单相铜芯XLPE电缆,其特征在于,所述导体选用绞合紧压圆形铜导体结构。
5.根据权利要求1所述的单相铜芯XLPE电缆,其特征在于,所述绝缘层厚度为0.6~0.7mm。
CN2013202691255U 2013-05-17 2013-05-17 单相铜芯xlpe电缆 Expired - Fee Related CN203300252U (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107393650A (zh) * 2017-06-23 2017-11-24 安徽华通电缆集团有限公司 一种电气化铁路单相铜芯阻燃耐火防水电缆

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107393650A (zh) * 2017-06-23 2017-11-24 安徽华通电缆集团有限公司 一种电气化铁路单相铜芯阻燃耐火防水电缆

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