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

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

 
Footcandle:
AbstandDS-10DS-20
2‘1,02,2
4‘0,240,58
6‘0,100,12
8‘0,030,05
10‘0,010,03
12‘ 0,01
Multiplizieren Sie zur Umrechnung in Lumen Footcandles mal 10.