56-2 33kv electrical porcelain pin insulator material:porcelain main dimension:D=229mm,H=165mm leakage distance:432mm 56-2 33kv electrical porcelain pin insulatormaterial:porcelainmain dimension:D=229mm,H=165mmleakage distance:432mmkey words:56-2,pin type insulator,electrical porcelain insulator ANSI insulator 56-2