SECTION 405 UNDERGROUND BUILDINGS 

[F] 405.9 Standby power. A standby power system complying with Section 2702 shall be provided standby power loads specified in Section 405.9.1.

405.9.1 Standby power loads. The following loads are classified as standby power loads.

1.Smoke control system.

2.Ventilation and automatic fire detection equipment for smokeproof enclosures.

3.Fire pumps. Standby power shall be provided for elevators in accor­dance with Section 3003.

405.9.2 Pick-up time. The standby power system shall pick up its connected loads within 60 seconds of failure of the normal power supply.

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