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不同外施电场及温度下XLPE中电树枝的引发及生长规律

, PP. 133-137

Keywords: 电场强度,温度,电树枝化,微观结构

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Abstract:

采用了针-板电极系统,研究了不同外施电场及温度下交联聚乙烯(XLPE)绝缘中电树枝的引发及生长规律。实验结果表明,当外施电场较低时,电树枝引发的分散性较大,当外施电场提高时,则趋于稳定。高温下电树枝更容易引发,但于低温下的结果而言变化幅度不大,相比之下温度对电树枝生长速度和形态的影响则较大。实验现象也显示出材料的微观形态对聚合物的电树枝化有较大的影响。

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