... Ceremic Porcelain Pin Type Insulator ANSI 56-1, 56-2, 56-3, 56-4, 56-5 Class ... kvNag-ative kv56-171/2(191)53/4(146)31/2(89)11/2(35)2(51)3/4(19) ... (178)3000(13.2)110701752251452210056-3101/2(167)71/2(191)4(102)13/8(35)2(51)3/4( ... )10(254)3000(13.2)140952253101853020056-5131/2(343)121/2(318) 13/8(35)2(51)3/4(19) ... /16(14)34(864)12(305)3000(13.2)17512527034022544200 Fig11223Class ANSI56-156-256-356-456-5Main ...