TY - BOOK AU - International Electrotechnical Commission TI - IEC/TR: 62271-310-2004-04; High-voltage switchgear and controlgear- Part310: Electrical endurance testing for circuit-breakers of rated voltage 72,5 kV and above PY - 2004/// CY - Geneva PB - International Electrotechnical Commission N1 - Downloaded from the IEC website ER -