高压交流电缆用交联聚乙烯绝缘料性能对比实验研究

doi:10.11930/j.issn.1004-9649.202006176

中国电力 ›› 2021, Vol. 54 ›› Issue (4): 87-93.DOI: 10.11930/j.issn.1004-9649.202006176

• 高压电缆及附件关键技术专栏 • 上一篇下一篇

高压交流电缆用交联聚乙烯绝缘料性能对比实验研究

欧阳本红¹, 刘松华¹, 王诗航², 李建英², 李盛涛²

1. 中国电力科学研究院有限公司, 湖北武汉 430074;
2. 西安交通大学电气工程学院, 陕西西安 710049

收稿日期:2020-06-16 修回日期:2020-07-17 发布日期:2021-04-23
作者简介:欧阳本红(1980-),男,博士,高级工程师,从事电力电缆结构优化、性能评价及运行管理技术研究,E-mail:ouyangbenhong@epri.sgcc.com.cn;刘松华(1983-),男,硕士,高级工程师,从事电力电缆运行维护技术研究,E-mail:liusonghua@epri.sgcc.com.cn
基金资助:
国家电网公司科技项目(高压交联聚乙烯电缆绝缘料和屏蔽料国产化关键技术研究及应用，GY71-16-036)

Comparative Experimental Study of Performance of Crosslinked Polyethylene Insulation Materials Used for HVAC Cables

OUYANG Benhong¹, LIU Songhua¹, WANG Shihang², LI Jianying², LI Shengtao²

1. China Electric Power Research Institute, Wuhan 430074, China;
2. School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China

Received:2020-06-16 Revised:2020-07-17 Published:2021-04-23
Supported by:
This work is supported by Science and Technology Project of SGCC (Research and Application of Key Technologies for Localization of High Voltage XLPE Cable Insulation Materials and Shielding Materials, No.GY71-16-036)

摘要/Abstract

摘要： 中国高电压等级交流电缆用交联聚乙烯（XPLE）绝缘料研发较晚，目前国产220 kV电压等级绝缘料暂未获得工程应用。以3种国内外高压电缆XLPE绝缘料为研究对象，对比分析绝缘料热压试样的工频击穿场强、介电常数、介质损耗正切、熔融和结晶性能、拉伸强度、断裂伸长率、微观形貌和交联度等参数。实验测试结果表明：国产XLPE绝缘料的宏观性能参数已经和进口XLPE绝缘料相差不大，甚至国产绝缘料试样的击穿场强和力学性能参数优于进口X1#试样，但同时也能够发现国产绝缘料的不足之处，例如击穿场强的稳定性较差、介质损耗角正切值偏大等。研究结论可为国产电缆绝缘料的研发与性能提升提供数据支撑。

关键词: 高压电缆, 交联聚乙烯, 绝缘性能

Abstract: The crosslinked polyethylene (XPLE) insulation materials for HVAC cables are developed relatively late in China. At present, the domestic-made insulation materials for 220 kV voltage grade have not been applied in practical engineering. Based on three types of domestic and foreign made XPLE insulation materials used for HVAC cables, a comparative experimental study is made on their power frequency breakdown strength, dielectric constant, dielectric loss tangent, melting and crystallization properties, tensile properties, elongation at break, micro-morphology and crosslinking degree. The experimental results show that the domestic made XLPE insulation materials are not much different from imported ones in macro performance parameters, with the domestic-made insulation material samples even being better than the imported X1# samples in breakdown characteristics and mechanical properties. However, some shortcomings are also found for domestic-made insulation materials, such as poor stability of breakdown strength and large value of dielectric loss tangent. The results of this study can provide a data support for the development and performance improvement of domestic-made cable insulation materials.

Key words: high voltage cable, crosslinked polyethylene, insulation performance

欧阳本红, 刘松华, 王诗航, 李建英, 李盛涛. 高压交流电缆用交联聚乙烯绝缘料性能对比实验研究[J]. 中国电力, 2021, 54(4): 87-93.

OUYANG Benhong, LIU Songhua, WANG Shihang, LI Jianying, LI Shengtao. Comparative Experimental Study of Performance of Crosslinked Polyethylene Insulation Materials Used for HVAC Cables[J]. Electric Power, 2021, 54(4): 87-93.

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高压交流电缆用交联聚乙烯绝缘料性能对比实验研究

Comparative Experimental Study of Performance of Crosslinked Polyethylene Insulation Materials Used for HVAC Cables

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高压交流电缆用交联聚乙烯绝缘料性能对比实验研究

Comparative Experimental Study of Performance of Crosslinked Polyethylene Insulation Materials Used for HVAC Cables

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