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IEC 60721-3-0 Ed. 2.0 b:2020
Classification of environmental conditions - Part 3-0: Classification of groups of environmental parameters and their severities - Introduction
IEC 60721-3-0:2020 provides guidance on the use of all parts of IEC 60721-3. It contains background information including information on the application and limitation of the classes given in various parts of IEC 60721-3 which can be used in the design, limitation of conditions and protection of equipment.
This second edition cancels and replaces the first edition published in 1984 and Amendment 1:1987. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) This edition has been extensively simplified to only provide necessary information with regard to the process given in the other parts of IEC 60721-3 and information on class severity has been updated.
International Electrotechnical Commission [iec]