Short-circuit current calculation in three-phase a.c.systems—Part 4: Currents during two separate simultaneous line-to-earth short circuits and partial short-circuit currents flowing through earth
NORMA vydaná dňa 29.12.2017
Designation standards: GB/T 15544.4-2017
Publication date standards: 29.12.2017
Country: Chinese technical standard
Kategória: Technické normy GB