Poznámky redaktora
89 0.00
0.91 0.91
Reflector exposed above
(self-cleaning effect)
0.93 0.86
0.00
1.85 0.96
0.75
Indirect VC
C
N
S
1.77
0.87
Reflector enclosed above
(no self-cleaning effect)
0.202
The Lighting Handbook
Luminaire cleaning
interval years
Environment type C
Luminaire type
Batten lum.77
0.92
Indirect luminaires 0.98 0.95 0.93 0.90 0.00
1.86
0.92 0.96 0.86 0.94 0.84
Enclosed IP2X 0.00
0.90 0.87
0.97
0.95
0.95 0.89 0.84
0.95 0.98
0.92 0.94 0.91 0.55
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 2.85
0.94 0.5 1.97
0.91
0.94 0.89
0.5
Direct VC
C
N
S
1.95
0.77 0.73
0.86
Direct/Indirect VC
C
N
S
1.94 0.00
1.00
0.92
0.92 0.91
0.84
0.93 0.95
0.89 0.94 0.88 0.81 0.82 0.88 0.74 0.95 0.92 0.56
0.5)
Ambient conditions: very clean, clean, normal, soiled
0.93 0.75
0.94 0.88 0.92
0.87 0.00
1.86 0.83 0.81 0.91 0.93
0.83 0.96 0.87
0.85
Dust-proof IP5X 0.95 0.00
1.97
0.0
Table for luminaire maintenance factor (LMF)
Table for room maintenance factor (RMF)
Maintenance lighting systems
.00
1.72
0.60
0.89 0.96 0.93 0.96 0.0 1. with open light distribution 0.93 0.93
0.00
1.00
1.83 0.94
0.86 0.96
0.5 1.91
0.00
1.72 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 0.90
0.83 0
