Classification of environmental conditions - Classification of groups of environmental parameters and their severities. Introduction

Classification of environmental conditions - Classification of groups of environmental parameters and their severities. Introduction

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1   Scope

This part of IEC 60721 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.
Reference to IEC 60721‑3‑0 is important in order to avoid misuse of the classes defined in the other parts of IEC 60721‑3.