SN EN 60721-3-0 : 1993
Current
The latest, up-to-date edition.
CLASSIFICATION OF ENVIRONMENTAL CONDITIONS; PART 3: CLASSIFICATION OF GROUPS OF ENVIRONMENTAL PARAMETERS AND THEIR SEVERITIES; INTRODUCTION
12-01-2013
Committees responsible
National foreword
Classification
1. Scope
2. Object
3. Content and layout
4. Background information for the selection of
environmental parameters and severities for the
classes
5. Guidance for the use of IEC Publication 721-3
6. Duration and frequency of occurrence
Appendix
A. Examples of application
Tables
I. Total duration of application
II. Maximum duration of single occurrence
III. Frequency of occurrence
Figure
1. Illustration of the fraction of time or fraction
of the total number of events when a certain
environmental severity is exceeded
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