METHOD OF INCREASING PUNCTURE STRENGTH AND HIGH VOLTAGE CORONA EROSION RESISTANCE OF MEDIUM VOLTAGE POLYMER INSULATORS

摘要

Medium voltage polymer insulators coated with semi-conducting refractory paint exhibit higher puncture strength and better corona erosion (corona cutting) resistance than a typical non-coated polymer insulator. The refractory semi-conducting paint is surface bonded to the ends of the polymer chains via electron beam reactive processing methods resulting in a mechanical bond on a molecular level to the polymer chain.