[F] 403.4.8 Standby and Emergency Power
If the standby or emergency power system includes a generator set inside a building, the system shall be located in a separate room enclosed with 2-hour fire barriers constructed in accordance with Section 707 or horizontal assemblies constructed in accordance with Section 711, or both. System supervision with manual start and transfer features shall be provided at the fire command center.
Exception: In Group I-2, Condition 2, manual start and transfer features for the critical branch of the emergency power are not required to be provided at the fire command center.
The following are classified as standby power loads:
- Power and lighting for the fire command center required by Section 403.4.6.
- Ventilation and automatic fire detection equipment for smokeproof enclosures.
- Where elevators are provided in a high-rise building for accessible means of egress, fire service access or occupant self-evacuation, the standby power system shall also comply with Sections 1009, 3007 or 3008, as applicable.