... Standard,ANSI 3.ISO9001:2000 4.Market: Europe,USAHigh voltage Fuse for Transformer Protection with 12kV Rated Voltage1. Used inindoor system ... of 50HZ2. Rated voltage of .6Kv,7.2KV,12KV,24KV ... facilities against overrioading or circuit break5. Necessary accessory for high-voltage switch box,circular circuitcabnet, high/low ...