CN106205831A - 一种额定电压66/110kv铜带屏蔽阻水电力电缆 - Google Patents
一种额定电压66/110kv铜带屏蔽阻水电力电缆 Download PDFInfo
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Abstract
本发明公开了一种额定电压66/110KV铜带屏蔽阻水电力电缆，包括绝缘线芯，在绝缘线芯外绕包两层半导电阻水带，在半导电阻水带外绕包两层铜带，在铜带外先绕包半导电阻水缓冲带再绕包半导电阻水带，在半导电阻水带外挤出皱纹铝护套，在皱纹铝护套外涂覆沥青层，最后在电缆的最外层挤包高密度聚乙烯外护套。本发明采用了多重阻水结构，不仅可有效防止水汽进入电缆内部，就是雨水天气，水都无法进入电缆内，从而延长了电缆的使用寿命，还具有良好的导热性和导电性，耐高温、抗热震性能好、良好的润滑性、可塑性，耐腐蚀性。
Description
技术领域
本发明涉及电线电缆领域，具体涉及一种额定电压66/110KV铜带屏蔽阻水电力电缆。
背景技术
国内交联聚乙烯 (XLPE) 绝缘电力电缆的应用已有三十几年的历史，因其良好的电气和机械物理性能，且具有生产工艺简单、结构轻便、传输容量大、安装敷设及维护保养方便、不受落差限制等优点，在电力系统中得到广泛的应用。
随着人们对电缆绝缘吸水和水树的研究及认识的加深，人们越来越意识到防水性能对交联聚乙烯绝缘电力电缆的重要性，据统计，国内电网10—35 kV 电力系统中，地下直埋 XLPE 绝缘电缆基本上没有采用阻水结构，普遍在运行 8 ～ 12 年后生长出大量水树，发生击穿事故，严重影响电网的安全运行。因此，电缆阻水技术对于保证 XLPE 电缆的可靠性与寿命都具有非常重要的意义。在地下水位较高或常年多雨地区（比如我国长江以南地区）， 越来越多的用户对电缆提出了阻水的要求。
发明内容
为了克服现有技术中存在的不足，提供一种多重阻水、抗侧压力强、屏蔽效果好、耐腐蚀的额定电压66/110KV铜带屏蔽阻水电力电缆。
为实现上述目的，本发明提供额定电压66/110KV铜带屏蔽阻水电力电缆，包括绝缘线芯，在绝缘线芯外绕包两层半导电阻水带，在半导电阻水带外绕包两层铜带，在铜带外先绕包半导电阻水缓冲带再绕包半导电阻水带，在半导电阻水带外挤出皱纹铝护套，在皱纹铝护套外涂覆沥青层，最后在电缆的最外层挤包高密度聚乙烯外护套。
优选地，所述绝缘线芯由导体、绕包在导体外的半导电尼龙带以及三层共挤在半导电尼龙带外的导体屏蔽层、绝缘层、绝缘屏蔽层构成。
优选地，所述所述高密度聚乙烯外护套外还涂覆半导电石墨层。
本发明的有益效果在于：
与现有技术相比，本发明采用了线芯阻水、缆芯阻水、缆芯外阻水等多重阻水结构，不仅可有效防止水汽进入电缆内部，就是雨水天气，水都无法进入电缆内，从而延长了电缆的使用寿命；电缆结构对称平衡，可消除脉冲电压对电缆绝缘的影响，防止绝缘层被击穿；电缆的金属屏蔽层，又可作为中性线使用，节省了材料成本；其中，皱纹铝护套有着承受电缆短路电流、径向防水以及承受抗侧压力的作用；铜带用于消除皱纹铝护层产生的涡流效应；导体外绕包半导电尼龙带，不仅起到屏蔽作用还起到隔离作用，并与导体屏蔽层起到了双重屏蔽；电缆最外层涂覆石墨，使得电缆具有良好的导热性和导电性，耐高温、抗热震性能好、良好的润滑性、可塑性，耐腐蚀性。
附图说明
图1为本发明的结构示意图。
具体实施方式
下面结合附图和具体实施例，进一步阐明本发明，应理解这些实施例仅用于说明本发明而不用于限制本发明的范围，在阅读了本发明之后，本领域技术人员对本发明的各种等价形式的修改均落于本申请所附权利要求所限定的范围。
如图1所示，本发明提供一种额定电压66/110KV铜带屏蔽阻水电力电缆，包括绝缘线芯，该所述绝缘线芯由导体1、绕包在导体外的半导电尼龙带2以及三层共挤在半导电尼龙带外的导体屏蔽层3、绝缘层4、绝缘屏蔽层5构成；
然后，在绝缘线芯外绕包两层半导电阻水带6，在半导电阻水带外绕包两层铜带7，在铜带外先绕包半导电阻水缓冲带8再绕包半导电阻水带9，在半导电阻水带外挤出皱纹铝护套10，在皱纹铝护套外涂覆沥青层11，使得电缆具有很好的防腐性，最后在电缆的最外层挤包高密度聚乙烯外护套12，高密度聚乙烯外护套外还涂覆半导电石墨层13。
以上所述仅是本发明的优选实施方式，应当指出，对于本领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干变型和改进，这些也应视为属于本发明的保护范围。
Claims (3)
1.一种额定电压66/110KV铜带屏蔽阻水电力电缆，其特征在于：包括绝缘线芯，在绝缘线芯外绕包两层半导电阻水带，在半导电阻水带外绕包两层铜带，在铜带外先绕包半导电阻水缓冲带再绕包半导电阻水带，在半导电阻水带外挤出皱纹铝护套，在皱纹铝护套外涂覆沥青层，最后在电缆的最外层挤包高密度聚乙烯外护套。
2.根据权利要求1所述的额定电压66/110KV铜带屏蔽阻水电力电缆，其特征在于：所述绝缘线芯由导体、绕包在导体外的半导电尼龙带以及三层共挤在半导电尼龙带外的导体屏蔽层、绝缘层、绝缘屏蔽层构成。
3.根据权利要求1所述的额定电压66/110KV铜带屏蔽阻水电力电缆，其特征在于：所述高密度聚乙烯外护套外还涂覆半导电石墨层。
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| CN201610758386.1A CN106205831A (zh) | 2016-08-30 | 2016-08-30 | 一种额定电压66/110kv铜带屏蔽阻水电力电缆 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110890172A (zh) * | 2019-12-19 | 2020-03-17 | 江苏亨通高压海缆有限公司 | 一种耐疲劳高阻水海底电缆 |
| CN113299429A (zh) * | 2021-05-31 | 2021-08-24 | 双登电缆股份有限公司 | 一种防爆防水用电缆 |
| CN114974676A (zh) * | 2022-06-30 | 2022-08-30 | 中天科技海缆股份有限公司 | 动态海底电缆及动态海底电缆的成型方法 |
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| JP2004178870A (ja) * | 2002-11-25 | 2004-06-24 | Furukawa Electric Co Ltd:The | 遮水ケーブル |
| CN101441906A (zh) * | 2008-12-25 | 2009-05-27 | 哈尔滨理工大学 | 带非线性屏蔽层的高压、超高压交联聚乙烯绝缘电力电缆 |
| KR20100106676A (ko) * | 2009-03-24 | 2010-10-04 | 디에스전선소재 주식회사 | 방수를 위한 전선케이블 구조 및 그 제조방법 |
| CN201749720U (zh) * | 2010-07-15 | 2011-02-16 | 扬州曙光电缆有限公司 | 220kv高压交联电缆 |
| CN202307293U (zh) * | 2011-11-01 | 2012-07-04 | 江苏东峰电缆有限公司 | 64/110kV交联聚乙烯绝缘高压电力电缆 |
| CN102789835A (zh) * | 2011-08-12 | 2012-11-21 | 上海特种电线电缆（集团）有限公司 | 环保安全型阻水防火电缆 |
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- 2016-08-30 CN CN201610758386.1A patent/CN106205831A/zh active Pending
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| JP2004178870A (ja) * | 2002-11-25 | 2004-06-24 | Furukawa Electric Co Ltd:The | 遮水ケーブル |
| CN101441906A (zh) * | 2008-12-25 | 2009-05-27 | 哈尔滨理工大学 | 带非线性屏蔽层的高压、超高压交联聚乙烯绝缘电力电缆 |
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| CN201749720U (zh) * | 2010-07-15 | 2011-02-16 | 扬州曙光电缆有限公司 | 220kv高压交联电缆 |
| CN102789835A (zh) * | 2011-08-12 | 2012-11-21 | 上海特种电线电缆（集团）有限公司 | 环保安全型阻水防火电缆 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110890172A (zh) * | 2019-12-19 | 2020-03-17 | 江苏亨通高压海缆有限公司 | 一种耐疲劳高阻水海底电缆 |
| CN113299429A (zh) * | 2021-05-31 | 2021-08-24 | 双登电缆股份有限公司 | 一种防爆防水用电缆 |
| CN114974676A (zh) * | 2022-06-30 | 2022-08-30 | 中天科技海缆股份有限公司 | 动态海底电缆及动态海底电缆的成型方法 |
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