7 Ecosine
®
active Harmonic Filters – Maintenance Manual for FN35xx Cabinet
Operation environmental
specifications
(IEC 60721-3-3, EN50178)
Climate conditions for operation class 3K3:
•
Temperature range: 0°C to +40°C
•
Relative humidity: < 95%, no condensation
•
Atmospheric pressure: 70KPa to 106KPa
Degree of pollution
(IEC 61010, EN50178)
Pollution conditions for operation class PD2
Corrosive levels
(IEC 60721-3-3)
Corrosive levels for storage, transport and operation Class
3C2
(3)
:
•
Applies to locations with normal levels of contaminants,
experienced in urban areas with industrial activities
•
Levels:
Environmental parameter
Units
(1)
Class 3C2
(2)
Mean value
Max value
Sea salt
Salt mist
Sulphur dioxide
ppm
cm
3
/m
3
0.3
0.11
1.0
0.37
Hydrogen sulphide
ppm
cm
3
/m
3
0.1
0.071
0.5
0.36
Chlorine
ppm
cm
3
/m
3
0.1
0.034
0.3
0.1
Hydrogen chloride
ppm
cm
3
/m
3
0.1
0.066
0.5
0.33
Hydrogen fluoride
ppm
cm
3
/m
3
0.01
0.012
0.03
0.036
Ammonia
ppm
cm
3
/m
3
1.0
1.4
3.0
4.2
Ozone
ppm
cm
3
/m
3
0.05
0.025
0.1
0.05
Nitrogen oxides
ppm
cm
3
/m
3
0.5
0.26
1.0
0.52
(1)
The values given in cm3/m3 have been calculated from the values
given in mg/m3 and refer to a temperature of 20 °C and a pressure
of 101,3 kPa. The table uses rounded values.
(2)
Mean values are expected long-term values. Maximum values are
limit or peak values, occurring over a period of time of not more than
30 min per day.
(3)
IEC 60721-3-3 is only applied to the coated PCB covered areas
and not the entire device. The unprotected areas, such as
connections, terminations and exposed magnetics, may not survive
these exposure levels over time.
