volume 10, issue 2, P1038-1051 1995
DOI: 10.1109/61.400824
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Abstract: A field observation of ice accretion on Hydro-Quebec H.V. insulators was carried out, as well as a laboratory investigation of the ac flashover performance of various types of insulators covered with artificial ice. The field observations made it possible to identify the type and physical aspect of naturally occurring ice accretions produced during freezing rain precipitation. The laboratory investigation was conducted in a 4.8 x 2.8 m x 3.8 in climate room using a H.V. transformer of 120 kV, 240 kVA with a s…

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