E DIN VDE 0833-4 VDE 0833-4:2023-02
Alarm systems for fire, intrusion and hold-up
Part 4: Requirements for voice alarm systems in case of fire
Class/Status:
Draft,
valid
Released: 2023 -02 Published:
2023-01 -13
VDE Art. No.: 1800785
End of objection deadline:
2023-05-13