CN201667250U - 防水中压螺旋地埋电缆 - Google Patents

防水中压螺旋地埋电缆 Download PDF

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Publication number
CN201667250U
CN201667250U CN2010201287913U CN201020128791U CN201667250U CN 201667250 U CN201667250 U CN 201667250U CN 2010201287913 U CN2010201287913 U CN 2010201287913U CN 201020128791 U CN201020128791 U CN 201020128791U CN 201667250 U CN201667250 U CN 201667250U
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China
Prior art keywords
layer
waterproof
semiconductor
medium voltage
conductive core
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Expired - Fee Related
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CN2010201287913U
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Inventor
王力梅
彭雄
刘祝英
张志坤
陶瑞祥
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ZHEJIANG ZHENGTAI CABLE CO Ltd
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ZHEJIANG ZHENGTAI CABLE 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
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/14Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables

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Abstract

一种防水中压螺旋地埋电缆,它是一种多芯电缆,包括导电芯线、绝缘套和外护套,在导电芯线和绝缘套之间有内屏蔽层,在绝缘套和外护套之间有外屏蔽层,其特征在于在外屏蔽层外有一层半导体阻水层,在半导体阻水层外还纵包了一层铝塑复合带。在潮湿的环境中,半导体阻水层能急剧膨胀,达到阻水的目的,大幅度的提高了用电的安全性,有效的防止多芯电缆之间绝缘层的击穿。因此,本实用新型具有屏蔽效果好、安全性高、适合潮湿环境的特点。

Description

防水中压螺旋地埋电缆
技术领域
本实用新型涉及一种电缆,具体是一种适用于地埋输电线路中使用的防水中压螺旋地埋电缆。
背景技术
现有技术的中压地埋电缆,一般在导电芯线和绝缘层之间设置半导体内屏蔽层,避免导体与绝缘层之间的局部放电;在绝缘层和外护套之间设置半导体外屏蔽层,避免绝缘层和外护套之间间隙所引起的局部放电;上述结构无法完全屏蔽电场的影响,容易发生芯线间绝缘层的击穿。另外,现有的中压地埋电缆无阻水层,在潮湿环境中更容易造成电流击穿,存在着安全性差的缺陷。
发明内容
本实用新型的目的是针对现有技术的缺陷,提出一种屏蔽效果好,安全性能高,适用潮湿环境中使用的防水中压螺旋地埋电缆。
本实用新型的目的是这样实现的:本实用新型的防水中压螺旋地埋电缆,它是一种多芯电缆,包括导电芯线、绝缘套和外护套,在导电芯线和绝缘套之间有内屏蔽层,在绝缘套和外护套之间有外屏蔽层,其特征在于在外屏蔽层外有一层半导体阻水层,在半导体阻水层外还纵包了一层铝塑复合带。
本实用新型的防水中压螺旋地埋电缆,由于在外屏蔽层外有一层半导体阻水层,半导体阻水层外还纵包了一层铝塑复合带,在潮湿的环境中,半导体阻水层能急剧膨胀,达到阻水的目的,大幅度的提高了用电的安全性,有效的防止多芯电缆之间绝缘层的击穿。因此,本实用新型具有屏蔽效果好、安全性高、适合潮湿环境的特点。
附图说明
图1为本实用新型的防水中压螺旋地埋电缆的结构示意图。
具体实施方式
下面结合附图通过实施例对本实用新型作进一步说明:
如图1所示,本实用新型的防水中压螺旋地埋电缆,它是一种多芯电缆,包括导电芯线1、绝缘套3和外护套7,在导电芯线1和绝缘套3之间有内屏蔽层2,在绝缘套3和外护套7之间有外屏蔽层4,其特征在于在外屏蔽层4外有一层半导体阻水层5,在半导体阻水层5外还纵包了一层铝塑复合带6。

Claims (1)

1.一种防水中压螺旋地埋电缆,它是一种多芯电缆,包括导电芯线(1)、绝缘套(3)和外护套(7),在导电芯线(1)和绝缘套(3)之间有内屏蔽层(2),在绝缘套(3)和外护套(7)之间有外屏蔽层(4),其特征在于在外屏蔽层(4)外有一层半导体阻水层(5),在半导体阻水层(5)外还纵包了一层铝塑复合带(6)。
CN2010201287913U 2010-03-12 2010-03-12 防水中压螺旋地埋电缆 Expired - Fee Related CN201667250U (zh)

Priority Applications (1)

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CN2010201287913U CN201667250U (zh) 2010-03-12 2010-03-12 防水中压螺旋地埋电缆

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CN2010201287913U CN201667250U (zh) 2010-03-12 2010-03-12 防水中压螺旋地埋电缆

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102360616A (zh) * 2011-10-14 2012-02-22 河北华通线缆集团有限公司 大截面橡皮填充防水电力电缆

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102360616A (zh) * 2011-10-14 2012-02-22 河北华通线缆集团有限公司 大截面橡皮填充防水电力电缆

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Granted publication date: 20101208

Termination date: 20160312