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Spacing for minimum footcandle (fc) illumination on level ground:

Note: 1fc for commercial projects / .3fc for residential projects

 
Footcandle:
AbstandAN-10AN-20
2‘1,53
4‘0,310,88
6‘0,140,33
8‘0,080,14
10‘0,030,08
12‘0,10,3
14‘ 0,01
Multiplizieren Sie zur Umrechnung in Lumen Footcandles mal 10.