Luminaires; part 2: particular requirements; section twenty-two: luminaires for emergency lighting

This specification outlines the additional requirements specifically tailored for luminaires intended for use in emergency lighting systems. It serves as a specialized section within a broader family of standards governing electrical lighting products. The document addresses critical design, construction, and performance criteria necessary to ensure that these fixtures operate reliably during power failures or other incidents requiring evacuation or rescue operations. Key aspects covered include the integrity of the light source, the durability of the housing, and the stability of electrical connections under stressed conditions. It defines parameters for light output levels, duration of operation, and the ability to withstand environmental factors that might occur during an emergency. The text provides guidance for manufacturers and testing facilities to verify compliance with safety and functional mandates unique to emergency scenarios. By adhering to these technical stipulations, producers can ensure their products maintain functionality when normal lighting fails, thereby supporting the safety protocols essential for building occupancy and public spaces.