GWB-35 GLB-20 CLB-10 outdoor ac high-voltage disconnecting switch conforms GB1985-89, IEC129(1984) and IEC694( ... 1980). GWB-35 GLB-20 CLB-10 outdoor ac high-voltage disconnecting switch conforms GB1985-89, IEC129(1984) and ... IEC694(1980). GWB-35 GLB-20 CLB-10 outdoor ac high-voltage disconnecting switch conforms GB1985-89, IEC129(1984) and ... 1000A,1500A,2000A,3000A outdoor hv disconnecting switch