Transformer Bushing insulator (B 4500) code:0550 Catalogue No . 0550 Type B4500 Material Porcelain Glaze Color Brown Creepage Distance (mm) — Nominal Current (A) 4500 Power Frequency Flashover Voltage (kV) Wet 30 Dry 35 Power Frequency Withstand Voltage / Dry (kV) 25 Weight (kg) 1.8 SiteAdmin2020-06-23T16:31:02+04:30