توضیحات :
NFPA 111 – Standard on Stored Electrical Energy Emergency and Standby Power Systems
۲۰۲۲ Edition
Chapter 1 Administration
۱-۱ Scope.
۱-۱-۱* This standard shall cover 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.
۱-۱-۲ Systems covered in this standard shall include power sources, transfer equipment, controls, supervisory equipment, and accessory equipment, including integral accessory equipment, needed to supply electrical power to the selected circuit5.
۱-۱-۳ This standard shall cover installation, maintenance, operation, and testing requirements as they pertain to the performance of the stored-energy emergency power supply system (SEPSS).
۱-۱-۴ Exclusions.
۱-۱-۴-۱* This standard shall not cover the following:
(۱) Application of the SEPSS
(۲) Distribution wiring
(۳) Systems having total outputs less than 500 VA or less than 24 V or systems less than Class 0.033 in accordance with Section 4.3
(۴) Unit equipment
(۵) Nuclear sources, solar systems, and wind stored-energy systems
(۶) Uninterruptible power systems (UPS) supplied by an emergency power supply system (EPSS) or a UPS supplied by an SEPSS
(۷) Optional standby systems
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