A new performance of RTV epoxy resin insulation material in tropical climate

This paper presents the results of an investigation on a new electrical performance of rtv epoxy resin insulation material in tropical climate. The specimens of epoxy resin insulating materials are based on diglysidyl ether of bisphenol A (dgeba), metaphenylene-diamine (mpda) as curing agent and 325-mesh silica filler treatment with variation of the silane. When the filler is pretreated with silane, before compounding in the resin, bulk handling, processing, and a new performance likes hydrophobic advantages are realized. Experimental method was carried out through the following procedure, the specimens are installed, on the Parangtritis natural aging test; site located /spl plusmn/30 km in the South of Yogyakarta. This site is subjected to heavy coastal pollution as well as to high sunny levels. The ac voltage was applied between two electrodes inserted into the sample surface. The evolution of the surface conductivity was investigated by current-voltage measurements and by the method of the surface potential decay. Calculation of the leakage current on contamination specimens surface, equivalent salt deposit density (esdd), and measurements contact angle of the hydrophobic. On the basis of the results, silane treatment of the filler can be improved overall the electrical performance of rtv epoxy resin insulation material in some operating environments.