NA 031
DIN Standards Committee Firefighting and Fire Protection
Standards
[CURRENT]
DIN EN 54-4
DIN EN 54-4
Fire detection and fire alarm systems - Part 4: Power supply equipment; German version EN 54-4:1997
Title (German)
Brandmeldeanlagen - Teil 4: Energieversorgungseinrichtungen; Deutsche Fassung EN 54-4:1997