IEC 62271-211:2014/COR1:2015 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR – Part 211: Direct connection between power transformers and gas-insulated metal-enclosed switchgear for rated voltages above 52 kV (Edition 1.0)
2017IEC 62271-211:2014/COR2:2017 Corrigendum 2 - High-voltage switchgear and controlgear - Part 211: Direct connection between power transformers and gas-insulated metal-enclosed switchgear for rated voltages above 52 kV
2015IEC 62271-211:2014/COR1:2015 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR – Part 211: Direct connection between power transformers and gas-insulated metal-enclosed switchgear for rated voltages above 52 kV (Edition 1.0)
2014IEC 62271-211:2014 High-voltage switchgear and controlgear - Part 211: Direct connection between power transformers and gas-insulated metal-enclosed switchgear for rated voltages above 52 kV