Note: | This section establishes minimal levels of lighting for safety purposes only. Guidelines pertaining to optimal levels of lighting and illumination may be found in Practice for Industrial Lighting, ANSI/IES RP7-1979. |
Lighting Table | ||
Activity | Minimum Acceptable average lighting level inan area: | Any one single measurement used to determine the average lighting level* cannot be less than: |
(Foot-candles) | (Foot-candles) | |
Indoor task | 10 | 5 |
Outdoor task | 5 | 2.5 |
Nontask activities for both indoor and outdoor | 3 | 1.5 |
* | Lighting levels must be measured at thirty inches above the floor/working surface or at the task. |
Notes: | 1. Lighting levels can be measured with a light meter. |
2. Conversion information: 1 foot candle = 1 lumen incident per square foot = 10.76 lux. |