Reference Manual

Environmental Capabilities
3.7.2 Climatic conditions.
The severity of these requirements are in conformity with: IEC 721-3-3
classes 3K3/3Z2/3Z4. and ETS 300 019-1-3 Class 3.1.
Table 6
Environmental Unit Value
Parameters Normal
Condition
Safe funct. Non Destr.
Temperature

C
+5- +40 0 - +45 -10 - +55
Relative Humidity % 5-85 5-90 5-90
3.7.3 Biological conditions
Requirements
There are no requirements for this condition.
3.7.4 Chemically active substances
The severity of these requirements is in conformity with: IEC 721-3-3
classes /3C2(3C1)/. and ETS 300 019-1-3 Class 3.1.
Note: The values are average yearly levels of airborne
contaminants that can be accepted. It is assumed that one of
the contaminants is dominant at each site, and that the other
is present in insignificant amounts.
3.7.5 Mechanically active substances
The severity of these requirements is in conformity with: IEC 721-3-3
class /3S2/. and ETS 300 019-1-3 Class 3.1.
3.7.6 Mechanical conditions
The severity of these requirements is in conformity with: IEC 721-3-3
class/3MI/. and ETS 300 019-1-3 class 3.1.
26 (485)
EN/LZT 720 0008 P2A
2001-11-28
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