Apply expert advice to prevent the spread of smoke!
The 2006 NFPA 92A reflects a major revision from the previous edition. With the publication of the 2006 edition, the document changes from a Recommended Practice to a Standard with mandatory provisions regarding the design, installation, and testing of smoke control systems provided. This enables local authorities to reference a document written in enforceable language.
Major technical changes in the 2006 edition address:
Power supplies for smoke control systems
Openings and leakage through smoke barriers including egress doors in stairways
Zoning of elevator shafts and elevator lobbies
The document also incorporates organizational and editorial changes that improve usability and application of the standard. (Softbound, 32 pp., 2006)