General Knowledge · Safety Standards and Regulations
According to standard life safety codes (such as NFPA 101), what is the minimum duration for which emergency lighting systems must remain operational during a power outage?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 140 minutes
- 2100 minutes
- 320 minutes
- 490 minutes✓
Correct answer
90 minutes
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