"Energy Saving Tips on Lighting Problems"
Three primary considerations when designing and specifying a lighting system are:
In the tables below is a partial listing of recommended minimum foot-candle levels established by the Illuminating Engineering Society (IES) for various commercial, industrial, institutional and recreational tasks.
Note: Outdoor task or applications or noted by bolder type.
|10 footcandles||20 footcandles||30 footcandles|
Assembly easy seeing
Reading good printed matter
Buildings med. dark surfaces, bright
|50 foot candles||70 foot candles||100 foot candles|
| Rough assembly,diffucult
Rough bench&machine work
Buildings: dark surface
| Reading , pen or soft
| Reading hard pencil
Medium bench&machine work
|150 footcandles||200 footcandles||500 footcandles|
Bank teller stations
Posting and keypunching
Reading poor reproductions
| Detailed drafting
Store merchandise, self serve areas
Sheet metal scribing
League Baseball infield
| Fine bench & machine
Store feature displays
Fine automatic machines
If there is anything you would like to add or just have a comment please feel free to email E.T.E. at http://www.elec-toolbox.com/email.htm.
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