... 52-1/52-2/52-3/52-4/52-5 Features 1)Cap and pin type suspension insulator for high voltag pin suspension porcelain insulator 52-1/52-2/52 ... and pin type suspension insulator for high voltage2)Material: Porcelain & Steel3)ANSI standard4)Item no.:52-1, 52-2, 52-3, 52-4, 52-5, 52-6, 52-8, 52 ...