Gentlemen, I am new here so if I miss any protocal please let me know. I forget where I got the information but I set up an excel sheet based on the following.
PERFORMANCE BASED ILLUMINATION
Formula: Total Coverage Area = cd/Lumin
Actual Coverage Area = Square Root of Total Coverage.
Device Required Total Sqr Root of Coverage =
Candela Lumin Coverage sq' Coverage in Feet
15 0.0375 400 20.0 X 20.0
30 0.0375 800 28.3 X 28.3
60 0.0375 1600 40.0 X 40.0
75 0.0375 2000 44.7 X 44.7
95 0.0375 2533 50.3 X 50.3
110 0.0375 2933 54.2 X 54.2
Please note that all fire alarm ceiling mount strobes I know of are only rated for .0375 lumin at 80" off the floor upto 30' in the air.