Standards
[CURRENT]
DIN EN 54-4/A2
DIN EN 54-4/A2
Fire detection and fire alarm systems - Part 4: Power supply equipment; German version EN 54-4:1997/A2:2006
Title (German)
Brandmeldeanlagen - Teil 4: Energieversorgungseinrichtungen; Deutsche Fassung EN 54-4:1997/A2:2006