Pin insulator is mounted rigidly on a supporting structure by an insulator pin/spindle. Unless otherwise stated, this term does not include the insulator pin. Pin insulator can be zinc thimble with thread type and porcelain thread type. Voltage: 11/12kv pin insulator, 15kv pin insulator, 22kv pin insulator, 33/36kv pin insulator Main type: Ansi c29.5 and c29.6 type: 55-1, 55-2, 55-3, 55-4, 55-5, 55-6, 56-1, 56-2, 56-3, 56-4 Bs or iec type: p-11-y, p-15-y, p-22-y, p-33-y Standard exporting packing, cartons with pallet