NFPA 111:2022 pdf download.Standard on Stored Electrical Energy Emergency and Standby Power Systems.
NFPA 111:2022 covers performance requirements for stored electrical energy systems providing an alternate source of electrical power in buildings and facilities in the event that the normal electrical power source fails.
Systems include power sources, transfer equipment, controls, supervisory equipment, and accessory equipment needed to supply electrical power to the selected circuits.
NFPA 111:2022 shall cover installation,maintenance,operation,and testing requirements as they pertain to the performance of the stored-energy emergency power supply system (SEPSS).