UNE-EN 60909-3:2011 Short-circuit currents in three-phase a.c systems -- Part 3: Currents during two separate simultaneous line-to-earth short-circuits and partial short-circuit currents flowing through earth
2011UNE-EN 60909-3:2011 Short-circuit currents in three-phase a.c systems -- Part 3: Currents during two separate simultaneous line-to-earth short-circuits and partial short-circuit currents flowing through earth