Standards
[CURRENT]
DIN EN 54-4/A1
DIN EN 54-4/A1
Fire detection and fire alarm systems - Part 4: Power supply equipment; Amendment A1; German version EN 54-4:1997/A1:2002
Title (German)
Brandmeldeanlagen - Teil 4: Energieversorgungseinrichtungen; Änderung A1; Deutsche Fassung EN 54-4:1997/A1:2002