Conference,

POLLUTION PERFORMANCE OF HIGH VOLTAGE INSULATOR STRINGS IN A DESERT ENVIRONMENT

, , , and .
(1982)

Abstract

Insulator contamination severity has been e~tensively measured on 66, 220 and 500-kV lines installed in desert areas. The process of natural wetting of insulators in the desert has been studied by analysing the relevant meteorological data over a period of five years. The severity, chemical and grain-size characteristics of the pollution resulting from sandstorms are distinguished from normal desert pollution. Strings of insulators with conven-tional and semiconducting glazes polluted in the desert have been tested in the labora~, tory under various test conditions. Insulator wetting, d~sert pollution, sandstorms, insulator strings, semiconducting glaze.

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