The economic growth. Make the number of establishments increased continuously. In particular, the establishment that produces the dust and the coastal fog, steam, salt pollution. Impact of deterioration of insulation, insulators with drastic effects of electric distribution systems by this research is testing the degeneration of high voltage post insulators thai. 10 kilovolts under test at the wheel, with a mess 1000 hrs to build test kit deterioration under conditions smeared, salt water immersion test by reference from the standard IEC 62730 define the coordinates used in pressure test at 6 kV. The test solution is sodium chloroplatinate rai (NaCl.) has lead the 3.50-cement. The test results found that staining values gradually accumulate 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 of corona discharge For a long period, resulting in degradation of the insulation, insulators and cause damage to the system. The results of the examination to assess the suitability of the materials, design, insulation, and can be used to select the criteria to select the type of appropriate insulation, insulators for use in staining.
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