Abstract : in this paper , characteristics of polluted insulator ' s operation state were analysised , studied the differences between each characteristics , the factors influencing lc significantly were found , including circumstance factors , and characteristics of leakage current ( lc ) were studied basing on artificial contamination test , obtained the relationship between leakage current and the influenced factors 摘要:文章分析了表征污穢絕緣子運(yùn)行狀態(tài)的特征量,比較了各特征量的特點(diǎn)及其適用場所,總結(jié)了影響泄漏電流的特征量,包括環(huán)境因素,并且在人工污穢試驗(yàn)的基礎(chǔ)上,分析了泄漏電流在閃絡(luò)過程中的特征,得出了泄漏電流與其基本特征量之間的關(guān)系。