Standard Illumination Values - Benning B Handbuch

5. Standard illumination values
Type of
visual task
Orientation
Easy visual
tasks
Normal
visual tasks
Difficult
visual tasks
Very difficult
visual tasks
Table 3:
The nominal values listed above are reference values. Generally they refer to
horizontally working surfaces at a height of 0.85 m above floor and a mean
ageing condition of the lighting.
Condition
Bright sun
Hazy day
Cloudy bright
Cloudy dull
Very dull
Sunset
Good street lighting
Poor street lighting
Full moon
Starlight
Overcast night
Table 4:
01/ 2007
Practical examples
Traffic zones, subordinate rooms
Filled storage rooms, hallways
in buildings for persons
Production plants with occasional
activities, toilet facilities, engine
rooms, traffic ways for vehicles
in buildings, staircases, con-
veyor belts, medical rooms
Crude works, continuously occu-
pied working places in produc-
tion plants, storage rooms with
reading tasks, canteens
Conference rooms, gymnasiums
Offices, medical facilities (urgenices)
Technical drawing rooms
Supervision places, techni-
cal drawings, open plan offices,
assembly rooms, testing stations
Assembly rooms for small com-
ponents, show windows
Standard values of inside working environment due to the
DIN 5035 standard
Typical Illuminance levels at outdoor places
BENNING LUXMETER
Illuminance (lux)
50.000 - 100.000
25.000 - 50.000
10.000 - 25.000
2.000 - 10.000
100 - 2.000
1 – 100
20
0,1
0,01 - 0,1
0,001 - 0,001
0,00001 - 0,0001

Normal illumina-
tion (lighting
intensity) in lux
20
50
100
200
300
500
750
1000
1500
5