Short-circuit current calculation in three-phase a.c. systems. Part 1: Factors for the calculation of short-circuit currents in three-phase a.c. systems according to IEC 60909.
NORMA vydaná dňa 30.10.2001
Designation standards: UNE 21239-1:2001
Note: NEPLATNÁ
Publication date standards: 30.10.2001
The number of pages: 66
Approximate weight : 198 g (0.44 lbs)
Country: Spanish technical standard
Kategória: Technické normy UNE