"Energy Saving Tips on Lighting Problems"

 

Three primary considerations when designing and specifying a lighting system are:

  1. Selection of the most efficient light sorce possible in order to minimize power costs
    and energy consumption.
  2. Matching the proper lamp type to the intended work task or aesthetic application,
    consistent with color, brightness control and other requirements.
  3. Establishing adequate light levels to maintian productivity, improve security and
    increase safety.

 

In the tables below is a partial listing of recommended minimum footcandle 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
Concourses
Freight Cars



Service Station Ent. Drive
Football Field
Baseball Outfield

 Corridors
Stairways
Elevators


Swimming exhibitions
Loading & Freight Docks
Active Storage yard

 Rough Assembly easy seeing
Reading good printed matter
Rest rooms
Ship fabricating

Buildings med. dark surfaces, bright surroundings.
Tennis Tournament
50 foot candles 70 foot candles 100 foot candles
Rough assembly,diffucult seeing
Rough bench&machine work
Bank lobbies
Ordinary Inspection

Buildings: dark surface
bright surroundings

 Reading , pen or soft pencil
Intermittent filing
Folding textiles		 Reading hard pencil
Active filing
Mail sorting
Medium bench&machine work
Indoor Tennis
Car repairing
Fine painting
Store:merchandise,service areas

Major
 Football - major stadium
150 footcandles 200 footcandles 500 footcandles
Bookkeeping
Accounting
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 work
Store feature displays
Jewlery&watch manufacturing
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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