... export can be processed under ANSI ,IEC. Type: 57-3 57 Series Line Post Insulator Line Post Insulator ... is non-puncturable design. Connected fitting type: tie top conductor binding type and clamp top with vertical or horizontal ... , 12.5KN, 16KN. Main type: ANSI C29.7 type: 57-1, 57-2, 57-3, 57-4, 57-5, 57 ... 32, 57-33, 57-34, 57-35 Other type according to IEC383 and BS137. Main Dimensions and Standard ...