This article presents a test of high voltage post insulators thai. 10 kilovolts besmirched with wheels under test by testing of insulators in transmission lines 22 kV. 1000 hours of time creating a test kit deterioration under conditions smeared, salt water immersion test for leaks and if current deterioration of insulators until the electrical stress and heat build-up on the surface of the insulators insulators.Test results of high voltage post insulators thai 10 kilovolts staining under extreme conditions. The mess that gradually accumulates on the surface of the insulators insulators when sasommakkrasae the more leaks, where weather conditions are. As a result, staining on the surface of the insulators and insulators for electrical stress. The heat from corona discharge for long periods, resulting in degradation of the insulation, insulators and cause damage to the system and cause the insulation. Born to deteriorate faster, shorter lifespan.
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