I am experiencing polluion flashover problems across substation bushings and line insulators. The HT components are situated in a mist belt, on the coast, in a dry windy, semi desert environment - certainly not the best conditions. I am considering "live" spray washing but am concerned that it is not a reliable maintenance technique for combatting pollution flashovers. I am also investigating shed extenders and silicone coatings as alternatives. I would appreciate any advice or comments.
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