| 低密度聚乙烯电树枝老化中氧的影响研究 |
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| 引用本文： | 谢恒坤,巫松桢.低密度聚乙烯电树枝老化中氧的影响研究[J].西安交通大学学报,1992,26(6):113-120. |
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| 作者姓名： | 谢恒坤 巫松桢 |
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| 作者单位： | 西安交通大学电气工程系
(谢恒堃)，西安交通大学电气工程系(巫松桢) |
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| 摘 要： | 作者采用了真空脱气后充六氟化硫(SF_6)气体的技术处理材料试样,能有效改进低密度聚乙烯(LDPE)的电树枝特性,把树枝起始电压和树枝起始时间提高到一个新的水平。与单一充SF_6气体的LDPE比较,两者分别提高及延长了一倍。试验表明LDPE中的氧和高能电子一样,都是促使电树枝发展的基本因素。
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| 关 键 词： | 氧化老化 低密度聚乙烯 电树枝 |
THE EFFECTS OF OXYGEN ON THE ELECTRICAL TREEING CHARACTERISTICS IN LOW DENSITY POLYETHYLENE |
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| Xie Hengkun,Wu Songzhen.THE EFFECTS OF OXYGEN ON THE ELECTRICAL TREEING CHARACTERISTICS IN LOW DENSITY POLYETHYLENE[J].Journal of Xi'an Jiaotong University,1992,26(6):113-120. |
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| Authors: | Xie Hengkun Wu Songzhen |
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| Institution: | Xie Hengkun;Wu Songzhen Department of Electrical Engineering |
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| Abstract: | In engineering analysis, the effects of oxygen of the treeing characteristics were usually ignored to
a more or less extent. In this peper it is revealde that the treeing characteristics can be improved re-
markably by degasification and then by SF_6-impregnation The experimental results show that the caus-
es for initiation and propagation of electriecal tree are not only the effect of the energetic charge carri-
ers but also the effect of oxygen in low density polyethylene. |
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| Keywords: | electrical breakdown oxidation aging degasification polyethylene phastic |
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