线路绝缘子表面积污物源分布特性

The Source Distribution Features of the Contamination on the Insulator Surface in the Transmission Lines

为了研究输电线路绝缘子自然积污的物质来源,在秋冬季节采集了线路绝缘子自然积污物、气溶胶以及表层土样本,进行了Al-Ca以及Al-Pb含量相关性分析,分析结果显示:山区绝缘子的积污物中Ca元素含量显示有较高的趋势分布,其中南方石灰岩区域的山区远大于城区以及城郊,西北沙漠地区差异性不大;城区以及城郊绝缘子的积污物中Pb元素含量显示有较高的趋势分布,山区含量较小;城区以及城郊绝缘子积污物以城市污染粉尘为主要物源,山区绝缘子积污物以周边表层土粉尘为主。这些数据为输电线路绝缘子防污治理工作提供了重要参考。

In order to study the source distribution features of the contamination on insulator surface in transmission lines, the samples including the contamination of the insulators, the aerosol and the topsoil are obtained to analyze the content correlations of aluminium-calcium （A1-Ca） and aluminium- lead （AI-Pb）. The results show that, for coteau insulator, the Ca content in the contamination has a higher distribution trend, and the Ca content in the limestone cotean is higher than that in the urban and suburban of southern China, but the some minimal differences in the contents of the desert in north-western China; the Pb content in the contamination has a higher distribution in the urban and suburban, but a lower distribution in the coteau; the source of the contamination of the insulators is mainly from the pollution dust in the urban, and the source of the contamination is mainly from the dust from the topsoil. The results provide the important references for the contamination prevention of the insulators.