표면 오손상태에 따른 폴리머 애자 하우징 재료의 누설전류 특성

Leakage Current on Surface of Artificially Polluted Composite Insulators

This paper introduces the characteristice of leakage current flowing through surface of polluted composite insulation materials. For recording of aged Polymer insulations, data acquisition system(DAS) was developed. These materials were wetted in NaCl solution(each 0.1 wt%, 0.4 wt%). And we boiled them during 24 hours. We measured the leakage current and weight changing of them, each 5 hours. As a result of this experiment, we could know that the leakage current of acted insulation materials was increased by boiling time.