أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
According to NFPA 72 edition 2013 Section 17.7.18.
Smoke detectors shall not be installed if any of the following ambient conditions exist:
· Temperature below 32°F (0°C).
· Temperature above 100°F (38°C).
· Relative humidity above 93 percent.
· Air velocity greater than 300 ft/min (1.5 m/sec).