12.1.1.3.1-7 Externally Illuminated Displays

Externally illuminated large displays, such as large status mimics, should have adequate illumination either from the control room environment or by means of local dedicated lighting, or both.

Additional Information: Large displays that are primarily illuminated by external sources should satisfy the relevant criteria in Section 12.1.2.3 for illumination levels, illumination uniformity, task area

 

 

illumination, shadowing, glare, reflectance, and color. The level of illumination should provide adequate contrast to allow users to resolve all important displayed details at the maximum viewing distance. 2090