NA 022
DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE
Technical rule
[CURRENT]
VDMA 24177
VDMA 24177
Powered smoke and heat control ventilators (Fans) for smoke extraction from buildings in the event of fire
Title (German)
Maschinelle Rauch- und Wärmeabzugsgeräte zur Rauchableitung aus Gebäuden im Brandfall