Gossen MetraWatt MAVOLUX 5032C, Руководство по эксплуатации

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GOSSEN-METRAWATT GMBH 9
6 Illumination Regulations
The following definitions are included in part 1 of the
DIN 5035 standard under the heading “Terms and
General Requirements”:
Nominal Illumination
Nominal illumination values for indoor areas include
20/50/100/200/300/500/750/1000/1500 and
2000 lx.
The nominal illumination value is related to the mean
aging factor of the lighting system in question.
The nominal illumination value which is assigned to
a specific type of room or activity is related to the
difficulty of the respective visual task. The assump-
tion is made that the nominal illumination value and
its influence on ones ability to see are not impaired
by interference effects such as direct glare, reflected
glare and loss of contrast, as well as unsuitable
color and color rendition.
The assignment of a specific nominal illumination
value to a visual task is based upon persons with
average sight. A sight defect which has not been
fully corrected with glasses etc., can be partially or
fully compensated for by increasing illumination.
Illumination at the Workplace
Nominal illumination of at least 200 lx is required for
continuously occupied indoor workstations, unless
another value is required due to operational or
optical, physiological reasons.
In rooms or indoor areas which are continuously
occupied by personnel, nominal illumination of at
least 100 lx is required.
Planning Values and Minimum Values
The nominal illumination value should be multiplied
by a factor of 1.25 for planning purposes.
The mean, arithmetic illumination value at the work-
place may not have a value of 0.8 times less than
the nominal illumination value, independent of the
aging factor of the lighting system. However, illumi-
nation at any given workstation may never have a
value of less than 0.6 times the nominal illumination
value.