
Generators can have different ratings indicating overall operating capacity shown below: This chapter defines sizing power generation systems and supplies design information on basic generator accessories. Level 2 classifications are issued when the operation of the system is less critical to life safety from a loss of power.Ĭhapter 5: Generator Ratings & Fuel Storage Level 1 classifications are issued when systems have a direct impact on life or safety with power interruptions. Requirements are divided into two levels. However, NFPA 101 (Life Safety Code) and NFPA 99 (Health Care Facilities Code) provide requirements for these buildings. NFPA 110 does not determine which occupancies require a Level 1 or Level 2 classification.

NFPA 110 is the Standard for Emergency and Standby Power Systems. The association creates and publishes codes and standards that are published in separate documents. The National Fire Protection Association (NFPA) is a nonprofit organization that was established in 1896 to eliminate death, injury, and property loss due to fire and electrical rated hazards.
