252kv Air To Oil Transformer Bushing (draw lead)

252kv Air To Oil Transformer Bushing (draw lead) OIP transformer bushing is mainly used for power transformer as current for leading in out high voltage side , middle voltage side and low voltage side for transformer as well as insulate the oil tanks of power transformer. Designation : Type character : BR Longer length of oil side or porcelain insulator BRD Shorter length of oil porcelain insulator Structure: L With CT is available, 1,2,3means different length for installing CT Anti-pollutior type: W Anti-pollutior type (the level is indicated at the end), none for normal type . 1,2,3means design serial number Additional performance code : 3 the min. creepage is 25mm/kV, heavy pollution area 4 the min. creepage is 31mm/kV, extra heacy Operation condition: Altitude ≤1000m Ambient condition: 40 +40 (DB45) Mounting angle:30°from the vertical Free of chemical gas, extreme contamination and salt fog area