交联聚乙烯电缆空间电荷与理化性能的关系

绝缘材料, 2012, 45(3): 47-50. doi: 10.3969/j.issn.1009-9239.2012.03.012

交联聚乙烯电缆空间电荷与理化性能的关系

欧阳本红 ^1, , 赵健康 ^2, , 陈铮铮 ^3, , 李巍巍 ^4, , 王霞 ^5, , 李建英 ^6,

1.国网电力科学研究院,武汉430074

2.国网电力科学研究院,武汉430074

3.国网电力科学研究院,武汉430074

4.西安交通大学电力设备电气绝缘国家重点实验室,西安710049

5.西安交通大学电力设备电气绝缘国家重点实验室,西安710049

6.西安交通大学电力设备电气绝缘国家重点实验室,西安710049

关键词：交联聚乙烯电缆 , 老化 , 空间电荷 , 力学性能 , 理化性能

Relationship between Space Charge and Physicochemical Properties of AC XLPE Cables

针对高压交联XLPE电缆,通过对未老化、加速老化1年和实际运行30年的电缆绝缘的空间电荷特性、力学性能及理化性能进行研究,分析了老化过程中电缆绝缘空间电荷分布与理化性能之间的关系.结果表明:沿电缆径向由内向外,未老化电缆电荷积累量增加,加速老化1年的电缆电荷积累量呈下降趋势,实际运行30年的电缆电荷积累量上升.结合力学性能及理化分析认为,加速老化电缆绝缘老化起始于绝缘内侧,并且影响到绝缘中间部位；而实际运行30年的电缆绝缘老化起始于绝缘外侧.

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交联聚乙烯电缆空间电荷与理化性能的关系

Relationship between Space Charge and Physicochemical Properties of AC XLPE Cables

参考文献