This study reported the leakage current and resistance value in Silicone Rubber (SiR) insulation material mix Silicone dioxide (SiO2) filler by applying voltage of 220 V, 500 V, and 1000 V. Test samples were sheet form with dimensions of 50 × 25 mm and thickness 1 mm. Test are carried out using an Aluminum tape electrode system glued on both sides of the object with a gap distance of 20 mm. Th…