Do life safety code requirements for emergency lighting exceed NEC guidelines?

• A. They exceed NEC guidelines
• B. They are less stringent than NEC guidelines
• C. They are identical to NEC guidelines
• D. NEC guidelines exceed life safety code

Answer: (A)

Life safety code focuses on ensuring you can safely exit a building during a power outage. It requires emergency lighting to automatically come on, provide adequate illumination along all means of egress, and run for a defined minimum duration, with regular testing and maintenance. The NEC, while it does cover emergency power for certain systems, is mainly about electrical safety in wiring and equipment installations and does not prescribe the same egress performance criteria. Because NFPA 101 sets stricter criteria for how emergency lighting must function in real conditions of an outage, life safety code requirements are more stringent than NEC guidelines. When both apply, you follow the stricter standard.