2702.2.20.2 Equipment requiring standby power system.
BC § 2702.2.20.2
With respect to such Occupancy Groups B, E and R-1, the following equipment, where such equipment is required by this code, shall be provided with a standby power system: 1. Ventilating systems used for smoke venting or control; 2. Stair pressurization; 3. At least three elevators in a building at one time with manual transfer to other elevators as required by Section 3003; and 4. Power and lighting for the fire command center required by Section 403.4.6.
