KS C IEC 62271-207:2014 High-voltage switchgear and controlgear — Part 207: Seismic qualification for gas-insulated switchgear assemblies for rated voltages above 52 kV
2014KS C IEC 62271-207:2014 High-voltage switchgear and controlgear — Part 207: Seismic qualification for gas-insulated switchgear assemblies for rated voltages above 52 kV