DefinePK

Abstract

Based on research conducted by I. Kitta, et al. (2016), it has been known that the addition of fly ash filler in silicone rubber can increase the dielectric and mechanical strength of the material. In this paper, we are doing further study about the feasibility of the composite material in terms of use in tropical climate. The purpose of this study is to investigate the influence of tropical climate and high voltage on changes in the contact angle and leakage current of composite silicone rubber (silicone rubber and fly ash). The results obtained showed that the largest decline in the contact angles occurred in silicone rubber material that is not given filler fly ash, the smallest decrease in the contact angle occurred in silicone rubber with high levels of fly ash as much as 30%. In observation of surface leakage current similar things happen, namely an increase in leakage current is highest in the silicone rubber material without filler, with increased surface leakage current is lowest at silicone rubber material with fly ash content of 30%.