... of high-voltage switch manufactory, electrical appliance research institute, power plant, power supply bureau, transformers and distribution station.Product profile: ... in GB/T 12022-2006 (Chinese standard)Operating power supplyAC380V 50Hz Maximum power20KWAmbient temperature0°C~40°C Humidity ... self sealing recovery pipe: 1 stalk, 5 metersc) Power cord: 1 stalk, 10 metersd) Gas bottle heating weighing ...