scope:

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.

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 circuits.

This standard shall cover installation, maintenance, operation, and testing requirements as they pertain to the performance of the stored emergency power supply system (SEPSS).

Exclusions.

This standard shall not cover the following:

(1) Application of the SEPSS

(2) Distribution wiring

(3) Systems having total outputs less than 500 VA or less than 24 V, or systems less than Class 0.033

(4) Emergency lighting unit equipment

(5) Nuclear sources, fuel cells, solar systems, and wind storedenergy systems

The following shall not be within the scope of this standard:

(1) Specific buildings or facilities, or both, requiring an SEPSS

(2) Specific loads to be served by the SEPSS

(3) Type, class, or level to be assigned to any specific load (See Section 4.1.)