IEC 62271-211 : 2014 COR 2 2017
IEC 62271-211 : 2014 COR 2 2017
HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 211: DIRECT CONNECTION BETWEEN POWER TRANSFORMERS AND GAS-INSULATED METAL-ENCLOSED SWITCHGEAR FOR RATED VOLTAGES ABOVE 52 KV
International Electrotechnical Committee