Answer
Dec 29, 2025 - 12:18 PM
The NFPA (National Fire Protection Association) requires that emergency lights provide illumination for at least 90 minutes during a power outage, as specified in NFPA 101: Life Safety Code. Emergency lighting systems must be tested monthly for 30 seconds and annually for 90 minutes to ensure proper operation. The illumination level must be at least 1 foot-candle (10.8 lux) at floor level along the path of egress.
