Earthing of power installations exceeding 1 kV a.c.
NORM herausgegeben am 1.3.2023
Designation standards: STN EN 50522
Classification mark: 333201
Catalog number: 136209
Publication date standards: 1.3.2023
Approximate weight : 57 g (0.13 lbs)
Country: Slovak technical standard
Kategorie: Technische Normen STN