The information presented in the NFPA 111 helps to minimize safety hazards resulting from power loss.
This Standard presents performance requirements for Level 1 and Level 2 stored electric energy systems providing an alternate source of electrical power in buildings and facilities in the event that the normal electrical power source fails.
This Standard presents safety requirements for a wide range of systems, including include power sources, transfer equipment, controls, supervisory equipment, and accessory equipment needed to supply electrical power to selected circuits.
NFPA 111 - Standard on Stored Electrical Energy Emergency and Standby Power Systems, 2005 Edition also provides guidance for inspectors, designers, installers, manufacturers, and users of a stored emergency power supply system (SEPSS) and serves as a basis for communication between the parties involved.
The 2005 edition has been revised and updated, and coverage includes both Vented as well as Valve-Regulated (VRLA). The definition of Emergency Power Supply System was also revised to further enhance usability of the document for adoption purposes. Approx. 17 pp.