Distribution Deadend. Silicone rubber formulation. Pultruded fiberglass core rod. Corrosion resistant glass fibers in an epoxy resin matrix. Insulator assembly is completed with the addition of galv. ductile iron end-fittings, crimped to the fiberglass core. The sealing system is a version of the P-S-T seal utilized on EHV Transmission Class insulators. Length: 300mm. Leakage distance: 401mm. Arcing distance: 192mm. Low freq. flashover (kV): 90-dry, 65-wet. Critical impulse flashover (kV): 140-pos, 145-neg. Voltage: 25kV, Ctn. Qty.: 18