Voltage level:AC 35kv, 10kv, 6kv, 3kv High accuracy, light weight, easy to ... electrical network. It suitable for 50Hz and 60Hz three phase AC 35kv, 10kv, 6kv, 3kv power system. High accuracy, light weight ... -2006 5. Outline and Installation Size (mm) JLS Series Oil-immersed High Voltage Metering Box