... customer’s special requirements.4) Type: pin type,post type,disc suspension type,spool/shackle type,strain typea. Disc InsulatorsDisc ... 2,56-3,56-4,56-5Pin Type Insulator for low & medium voltage lines (ANSI): 55-1, ... 55-2,55-3,55-4,55-5Pin type insulator (AS): PW1-15-A,PW1-22-A ... ,PW1-33-AHigh voltage pin type insulator (BS ...