Poznámky redaktora
with open light distribution 0.5
Direct VC
C
N
S
1.93
0.77
0.95 0.95
0.91
0.94 0.95
0.96 0.93
0.92 0.86
0.94 0.91 0.77 0.5 1.83 0.91 0.82 0.83 0.94 0.91
Reflector exposed above
(self-cleaning effect)
0.00
1.95 0.95 0.00
1.84
0.94 0.93 0.00
1.55
From CIE publication “Maintenance indoor electric lighting systems”, dated 2005, ISBN 3900734348
The figures the table above apply reflection factors 70/50/20 and medium-sized room 2.95 0.92
0.96
0.72
0.00
1.92
0.90 0.91
0.86 0.81 0.00
1.00
0.98 0.81
From CIE publication “Maintenance indoor electric lighting systems”, dated 2005, ICBN 3900734348
Ambient conditions: very clean, clean, normal, soiled
Luminaire cleaning
interval years
Illumination type Environment type 0.0
Table for luminaire maintenance factor (LMF)
Table for room maintenance factor (RMF)
Maintenance lighting systems
.92 0.75
0.73
0.97
0.85 0.86 0.84
Enclosed IP2X 0.94
0.94 0.89 0.00
1.83 0.75
Indirect VC
C
N
S
1.00
1.91
0.88 0.86
Direct/Indirect VC
C
N
S
1.87 0.92 0.00
0.202
The Lighting Handbook
Luminaire cleaning
interval years
Environment type C
Luminaire type
Batten lum.5 1.86
0.92 0.87
0.90
0.88 0.97
0.93 0.92
Indirect luminaires 0.85
0.83 0.93 0.96 0.93 0.85
Dust-proof IP5X 0.87
0.96 0.97
0.93 0.60
0.91 0.00
1.00
1.77
0.87
Reflector enclosed above
(no self-cleaning effect)
0.90 0.95
0.0 1.89
0.94 0.96
0.81 0.95 0.88 0.72 0.84
0.56
0.89 0.5)
Ambient conditions: very clean, clean, normal, soiled
0.98
0.94 0.86 0.89 0.96 0.74 0.93 0.89 0.00
0
