Right on all counts:

Don't know about UBC, but IBC says:

909.5.2 Opening protection.
Openings in smoke barriers shall be protected by automatic-closing devices actuated by the required controls for the mechanical smoke control system. Door openings shall be protected by door assemblies complying with Section 714.2.3.

909.11 Power systems.
The smoke control system shall be supplied with two sources of power. Primary power shall be the normal building power systems. Secondary power shall be from an approved standby source complying with the ICC Electrical Code. The standby power source and its transfer switches shall be in a separate room from the normal power transformers and switch gear and shall be enclosed in a room of not less than 1-hour fire-resistance-rated construction ventilated directly to and from the exterior. Power distribution from the two sources shall be by independent routes. Transfer to full standby power shall be automatic and within 60 seconds of failure of the primary power. The systems shall comply with the ICC Electrical Code.

(The ICC Electrical Code consists of an administrative section and then adopts the 2002 NFPA 70 in it's entirety)

I'm sure the UBC has similiar requirements.

Earl


Earl