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  4. 水树对XLPE电缆绝缘材料性能和微观结构影响的研究进展

绝缘材料, 2010, 43(5): 50-56. doi: 10.3969/j.issn.1009-9239.2010.05.014

水树对XLPE电缆绝缘材料性能和微观结构影响的研究进展

赵健康 1, , 欧阳本红 2, , 赵学童 3, , 李建英 4, , 李盛涛 5,

1.国网电力科学研究院,武汉,430074;武汉大学,电气工程学院,武汉,430072

2.国网电力科学研究院,武汉,430074

3.西安交通大学,电力设备电气绝缘国家重点实验室,西安,710492

4.西安交通大学,电力设备电气绝缘国家重点实验室,西安,710492

5.西安交通大学,电力设备电气绝缘国家重点实验室,西安,710492

关键词： 水树 , XLPE 电缆 , 机理 , 微观结构 , 电性能

Review of Influence of Water-tree on Microstructure and Properties of XLPE Cable Insulation Material

阐述了交联聚乙烯(XLPE)电缆中水树引发、生长理论,讨论了水树枝模型及水树化学反应过程,分析了水树对XLPE电缆绝缘材料电性能(介电常数、击穿电压、损耗因子、电导及电树引发电压)的影响.在此基础上.介绍了水树对XLPE电缆绝缘材料微观结构的影响,包括水树中的氧化降解作用对电缆微观结构以及水树对电缆绝缘中空间电荷分布的影响.

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