Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities - Introduction (IEC 60721-3-0:2020)

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.

Klassifizierung von Umgebungsbedingungen - Teil 3: Klassifizierung von Einflussgrößen in Gruppen und deren Schärfegrade - Einführung (IEC 60721-3-0:2020)

Classification des conditions d'environnement - Troisième partie: Classification des groupements des agents d'environnement et de leurs sévérités - Introduction (IEC 60721-3-0:2020)

L'IEC 60721-3-0:2020 fournit des recommandations pour l'emploi de toutes les parties de l'IEC 60721-3. Elle contient des informations générales y compris des renseignements sur l'application et les limites des catégories indiquées dans les différentes parties de l’IEC 60721-3 qui peuvent être utilisées pour la conception, la délimitation des conditions et la protection des matériels. Cette deuxième édition annule et remplace la première édition parue en 1984 et son Amendement 1:1987. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) La présente édition a été considérablement simplifiée pour ne fournir que les informations nécessaires concernant les processus présentés dans les autres parties de l'IEC 60721-3 et les informations concernant les catégories de sévérité ont été mises à jour.

Klasifikacija okoljskih pogojev - 3. del: Razvrščanje skupin okoljskih parametrov in njihove resnosti - Uvod (IEC 60721-3-0:2020)

General Information

Status
Published
Publication Date
21-Jul-2020
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Jul-2020
Due Date
05-Sep-2020
Completion Date
22-Jul-2020

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SLOVENSKI STANDARD
SIST EN IEC 60721-3:2020
01-oktober-2020
Nadomešča:
SIST EN 60721-3-0:2001

Klasifikacija okoljskih pogojev - 3. del: Razvrščanje skupin okoljskih parametrov

in njihove resnosti - Uvod (IEC 60721-3-0:2020)
Classification of environmental conditions - Part 3: Classification of groups of

environmental parameters and their severities - Introduction (IEC 60721-3-0:2020)

Klassifizierung von Umgebungsbedingungen - Teil 3: Klassifizierung von Einflussgrößen

in Gruppen und deren Schärfegrade - Einführung (IEC 60721-3-0:2020)

Classification des conditions d'environnement - Troisième partie: Classification des

groupements des agents d'environnement et de leurs sévérités - Introduction (IEC 60721

-3-0:2020)
Ta slovenski standard je istoveten z: EN IEC 60721-3-0:2020
ICS:
19.040 Preskušanje v zvezi z Environmental testing
okoljem
SIST EN IEC 60721-3:2020 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN IEC 60721-3:2020
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SIST EN IEC 60721-3:2020
EUROPEAN STANDARD EN IEC 60721-3-0
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2020
ICS 19.040 Supersedes EN 60721-3-0:1993 and all of its
amendments and corrigenda (if any)
English Version
Classification of environmental conditions - Part 3-0:
Classification of groups of environmental parameters and their
severities - Introduction
(IEC 60721-3-0:2020)

Classification des conditions d'environnement - Partie 3-0: Klassifizierung von Umgebungsbedingungen - Teil 3-0:

Classification des groupements des agents Klassifizierung von Einflussgrößen in Gruppen und deren

d'environnement et de leurs sévérités - Introduction Schärfegrade - Einführung
(IEC 60721-3-0:2020) (IEC 60721-3-0:2020)

This European Standard was approved by CENELEC on 2020-06-11. CENELEC members are bound to comply with the CEN/CENELEC

Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC

Management Centre or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation

under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the

same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,

Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the

Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN IEC 60721-3-0:2020 E
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SIST EN IEC 60721-3:2020
EN IEC 60721-3-0:2020 (E)
European foreword

The text of document 104/864/FDIS, future edition 2 of IEC 60721-3-0, prepared by IEC/TC 104

"Environmental conditions, classification and methods of test" was submitted to the IEC-CENELEC

parallel vote and approved by CENELEC as EN IEC 60721-3-0:2020.
The following dates are fixed:

• latest date by which the document has to be implemented at national (dop) 2021-03-11

level by publication of an identical national standard or by endorsement

• latest date by which the national standards conflicting with the (dow) 2023-06-11

document have to be withdrawn

This document supersedes EN 60721-3-0:1993 and all of its amendments and corrigenda (if any).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Endorsement notice

The text of the International Standard IEC 60721-3-0:2020 was approved by CENELEC as a

European Standard without any modification.

In the official version, for Bibliography, the following notes have to be added for the standards

indicated:
IEC 60068-1:2013 NOTE Harmonized as EN 60068-1:2014 (not modified)
IEC 60721-1 NOTE Harmonized as EN 60721-1
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SIST EN IEC 60721-3:2020
IEC 60721-3-0
Edition 2.0 2020-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Classification of environmental conditions –
Part 3-0: Classification of groups of environmental parameters
and their severities – Introduction
Classification des conditions d'environnement –
Partie 3-0: Classification des groupements des agents d'environnement
et de leurs sévérités – Introduction
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 19.040 ISBN 978-2-8322-8295-3

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 5 ----------------------
SIST EN IEC 60721-3:2020
– 2 – IEC 60721-3-0:2020 © IEC 2020
CONTENTS

FOREWORD ........................................................................................................................... 3

INTRODUCTION ..................................................................................................................... 5

1 Scope .............................................................................................................................. 6

2 Normative references ...................................................................................................... 6

3 Terms and definitions ...................................................................................................... 6

4 Content and layout .......................................................................................................... 6

5 Guidance on the selection of environmental parameters and severities ........................... 7

5.1 General ................................................................................................................... 7

5.2 Establishing testing severities ................................................................................. 8

Bibliography ............................................................................................................................ 9

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SIST EN IEC 60721-3:2020
IEC 60721-3-0:2020 © IEC 2020 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CLASSIFICATION OF ENVIRONMENTAL CONDITIONS –
Part 3-0: Classification of groups of environmental
parameters and their severities – Introduction
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international

co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and

in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,

Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their

preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with

may participate in this preparatory work. International, governmental and non-governmental organizations liaising

with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for

Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.

2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

consensus of opinion on the relevant subjects since each technical committee has representation from all

interested IEC National Committees.

3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

misinterpretation by any end user.

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any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.

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7) No liability shall attach to IEC or its direc
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