... GB 2.up to 36kv 3.ISO9001,ISO14001,OHSAS18001 4 type test report high voltage switchgear GBC handcart high voltage switchgear ... makes maintenance easy. The handcart can be equipped with all type of operating mechanism. high voltage switchgear is widely used in ... -time withstand current (4S)KA20, 25, 31.5Specified short circuit drop-out currentKA20, 25, 31.5Rated withstand current (peak)KA50, 63, 80Rated ...