... Specification:1) Porcelain or glass insulators for low & medium or high voltage2) Voltage: 0.4KV~132KV3) The disc suspension insulator can be ... Type: pin type,post type,disc suspension type,spool/shackle type,strain typea. Disc InsulatorsDisc Suspension Insulators for HV LineASNI:52-1,52 ... 450,ALP22/480,ALP22/520,ALP22/920 c. Post insulatorsPost insulators for high voltage lines (ANSI): 57-1s,57-2s, ...