SIST EN 61587-1:2008

Mechanical structures for electronic equipment - Tests for IEC 60917 and IEC 60297 -- Part 1: Climatic, mechanical tests and safety aspects for cabinets, racks, subracks and chassis

This part of IEC 61587 specifies mechanical tests, climatic tests and safety aspects for cabinets, racks, subracks and chassis as defined in the standards of the IEC 60917 series and the IEC 60297 series for indoor applications. It applies in whole or part only to the mechanical structures of cabinets, racks, subracks and chassis, but it does not apply to electronic equipment or systems. Tests dedicated to outdoor enclosures are standardized in IEC 61969-3. Some suitable parts of IEC 61587-1 apply to IEC 61969-3. The object of this standard is to ensure physical integrity and environmental performance in cabinets, racks, subracks and chassis, taking into account the need for different levels of performance in different applications. It is intended to give the user a level of confidence in the selection of performance levels to meet as close as possible the individual application requirements.

Mechanische Bauweisen für elektronische Einrichtungen - Prüfungen für IEC 60917 und IEC 60297 -- Teil 1: Klimatische, mechanische Prüfungen und Sicherheitsaspekte für Schränke, Gestelle, Baugruppenträger und Einschübe

Structures mécaniques pour équipement électronique - Essais pour la CEI 60917 et la CEI 60297 -- Partie 1: Essais climatiques, mécaniques et aspects de la sécurité des baies, bâtis, bacs à cartes et châssis

Spécifie les essais climatiques, mécaniques et les aspects de la sécurité pour les baies, bâtis, bacs à cartes et châssis tels qu'ils sont définis dans les normes de la série CEI 60917 et la série CEI 60297 pour les applications abritées. Assure l'intégrité physique et les performances environnementales des baies, bâtis, bacs à cartes et châssis, en tenant compte de la nécessité de plusieurs niveaux de performance pour les différentes applications. Donne à l'utilisateur un niveau de confiance dans le choix des niveaux de performance, afin de satisfaire autant que possible aux exigences d'application individuelles. Les modifications par rapport à l'édition précédente comprennent des niveaux de performance complémentaires.

Mehanske strukture za elektronsko opremo - Preskušanje za IEC 60917 in IEC 60297 - 1. del: Klimatski in mehanski preskusi ter varnostni vidiki za ohišja, stojala, okvire in šasije (IEC 61587-1:2007)

General Information

• Status: Withdrawn
• Publication Date: 07-Nov-2007
• Withdrawal Date: 27-Sep-2016
• ICS: 31.240 - Mechanical structures for electronic equipment
• Technical Committee: I11 - Imaginarni 11
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 28-Sep-2016
• Due Date: 21-Oct-2016
• Completion Date: 28-Sep-2016
• Ref Project: EN 61587-1:2007 - Mechanical structures for electronic equipment - Tests for IEC 60917 and IEC 60297 - Part 1: Climatic, mechanical tests and safety aspects for cabinets, racks, subracks and chassis

Relations

• Replaced By: SIST EN 61587-1:2012 - Mechanical structures for electronic equipment - Tests for IEC 60917 and IEC 60297 - Part 1: Environmental requirements and tests, safety aspects for cabinets, racks, subracks and chassis
• Effective Date: 28-Jan-2023
• Revised: SIST EN 61587-1:2012 - Mechanical structures for electronic equipment - Tests for IEC 60917 and IEC 60297 - Part 1: Environmental requirements and tests, safety aspects for cabinets, racks, subracks and chassis
• Effective Date: 06-May-2014
• Replaces: SIST EN 61587-1:2002 - Mechanical structures for electronic equipment - Tests for IEC 60917 and IEC 60297 -- Part 1: Climatic, mechanical tests and safety aspects for cabinets, racks, subracks and chassis
• Effective Date: 01-Jan-2008
• Revised: SIST EN 61587-1:2012 - Mechanical structures for electronic equipment - Tests for IEC 60917 and IEC 60297 - Part 1: Environmental requirements and tests, safety aspects for cabinets, racks, subracks and chassis
• Effective Date: 12-Oct-2010
• Replaces: SIST EN 61587-1:2002 - Mechanical structures for electronic equipment - Tests for IEC 60917 and IEC 60297 -- Part 1: Climatic, mechanical tests and safety aspects for cabinets, racks, subracks and chassis
• Effective Date: 06-May-2014
• Replaces: SIST EN 61587-1:2002 - Mechanical structures for electronic equipment - Tests for IEC 60917 and IEC 60297 -- Part 1: Climatic, mechanical tests and safety aspects for cabinets, racks, subracks and chassis
• Effective Date: 28-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 61587-1:2008
01-januar-2008
1DGRPHãþD
SIST EN 61587-1:2002
Mehanske strukture za elektronsko opremo - Preskušanje za IEC 60917 in IEC
60297 - 1. del: Klimatski in mehanski preskusi ter varnostni vidiki za ohišja, stojala,
okvire in šasije (IEC 61587-1:2007)
Mechanical structures for electronic equipment - Tests for IEC 60917 and IEC 60297 -
Part 1: Climatic, mechanical tests and safety aspects for cabinets, racks, subracks and
chassis (IEC 61587-1:2007)
Mechanische Bauweisen für elektronische Einrichtungen - Prüfungen für IEC 60917 und
IEC 60297 - Teil 1: Klimatische, mechanische Prüfungen und Sicherheitsaspekte für
Schränke, Gestelle, Baugruppenträger und Einschübe (IEC 61587-1:2007)
Structures mécaniques pour équipement électronique - Essais pour la CEI 60917 et la
CEI 60297 - Partie 1: Essais climatiques, mécaniques et aspects de la sécurité des
baies, bâtis, bacs a cartes et châssis (IEC 61587-1:2007)
Ta slovenski standard je istoveten z: EN 61587-1:2007
ICS:
31.240 Mehanske konstrukcije za Mechanical structures for
elektronsko opremo electronic equipment
SIST EN 61587-1:2008 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

EUROPEAN STANDARD
EN 61587-1

NORME EUROPÉENNE
May 2007
EUROPÄISCHE NORM

ICS 31.240 Supersedes EN 61587-1:1999


English version


Mechanical structures for electronic equipment -
Tests for IEC 60917 and IEC 60297 -
Part 1: Climatic, mechanical tests and safety aspects
for cabinets, racks, subracks and chassis
(IEC 61587-1:2007)


Structures mécaniques  Mechanische Bauweisen
pour équipement électronique - für elektronische Einrichtungen -
Essais pour la CEI 60917 Prüfungen für IEC 60917
et la CEI 60297 - und IEC 60297 -
Partie 1: Essais climatiques, mécaniques Teil 1: Klimatische, mechanische
et aspects de la sécurité des baies, bâtis, Prüfungen und Sicherheitsaspekte
bacs à cartes et châssis für Schränke, Gestelle,
(CEI 61587-1:2007) Baugruppenträger und Einschübe
(IEC 61587-1:2007)


This European Standard was approved by CENELEC on 2007-04-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels


© 2007 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61587-1:2007 E

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EN 61587-1:2007 - 2 -
Foreword
The text of document 48D/352/FDIS, future edition 2 of IEC 61587-1, prepared by SC 48D, Mechanical
structures for electronic equipment, of IEC TC 48, Electromechanical components and mechanical
structures for electronic equipment, was submitted to the IEC-CENELEC parallel vote and was approved
by CENELEC as EN 61587-1 on 2007-04-01.
This European Standard supersedes EN 61587-1:1999.
This European Standard includes the following significant technical changes with respect to
EN 61587-1:1999:
– Table 3: Performance levels for industrial atmosphere. In addition to the existing performance levels
extended values (E) are implemented.
– Table 8: Vibration and shock performance levels for cabinets. Change of values in accordance to
EN 60721-3-3 was necessary to meet the more practical test levels.
– Table 11: Vibration and shock performance levels for subracks. Change of values in accordance to
EN 60721-3-3 was necessary to meet the more practical test levels.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2008-01-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2010-04-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61587-1:2007 was approved by CENELEC as a European
Standard without any modification.
__________

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- 3 - EN 61587-1:2007
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.

Publication Year Title EN/HD Year

1) 2)
IEC 60068-1 - Environmental testing - EN 60068-1 1994
Part 1: General and guidance


1) 2)
IEC 60068-2-1 - Environmental testing - EN 60068-2-1 2007
Part 2-1: Tests - Test A: Cold


1) 2)
IEC 60068-2-2 - Environmental testing - EN 60068-2-2 1993
Part 2: Tests - Tests B: Dry heat


1) 2)
IEC 60068-2-6 - Environmental testing - EN 60068-2-6 1995
Part 2: Tests - Test Fc: Vibration (sinusoidal)


1) 2)
IEC 60068-2-11 - Environmental testing - EN 60068-2-11 1999
Part 2: Tests - Test Ka: Salt mist


1) 2)
IEC 60068-2-27 - Basic environmental testing procedures - EN 60068-2-27 1993
Part 2: Tests - Test Ea and guidance: Shock


1) 2)
IEC 60068-2-30 - Environmental testing - EN 60068-2-30 2005
Part 2-30: Tests - Test Db: Damp heat, cyclic
(12 h + 12 h cycle)


1) 2)
IEC 60068-2-42 - Environmental testing - EN 60068-2-42 2003
Part 2-42: Tests - Test Kc: Sulphur dioxide
test for contacts and connections


1) 2)
IEC 60068-2-43 - Environmental testing - EN 60068-2-43 2003
Part 2-43: Tests - Test Kd: Hydrogen sulphide
test for contacts and connections


1)
IEC 60068-2-49 - Environmental testing - - -
Part 2: Tests - Guidance to Test Kc: Sulphur
dioxide test for contacts and connections


1) 2)
IEC 60068-2-52 - Environmental testing - EN 60068-2-52 1996
Part 2: Tests - Test Kb: Salt mist, cyclic
(sodium chloride solution)


1) 2)
IEC 60068-2-75 - Environmental testing - EN 60068-2-75 1997
Part 2-75: Tests - Test Eh: Hammer tests


IEC 60297 Series Dimensions of mechanical structures of the HD 493.1 S1 Series
482,6 mm (19 in) series



1)
Undated reference.
2)
Valid edition at date of issue.

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EN 61587-1:2007 - 4 -
Publication Year Title EN/HD Year
1) 2)
IEC 60512-1-1 - Connectors for electronic equipment - EN 60512-1-1 2002
Tests and measurements -
Part 1-1: General examination -
Test 1a: Visual examination


1) 2)
IEC 60529 - Degrees of protection provided EN 60529 1991
by enclosures (IP Code) + corr. May 1993


1) 2)
IEC 60603-2 - Connectors for frequencies below 3 MHz for EN 60603-2 1998
use with printed boards -
Part 2: Detail specification for two-part
connectors with assessed quality, for printed
boards, for basic grid of 2,54 mm (0,1 in) with
common mounting features


1) 2)
IEC 60654-4 - Operating conditions for industrial-process EN 60654-4 1997
measurement and control equipment -
Part 4: Corrosive and erosive influences


1) 2)
IEC 60721-3-3 - Classification of environmental conditions - EN 60721-3-3 1995
Part 3: Classification of groups of
environmental parameters and
their severities - Section 3: Stationary use at
weatherprotected locations


IEC 60917 Series Modular order for the development of EN 60917 Series
mechanical structures for electronic
equipment practices


1) 2)
IEC 60950-1 (mod) - Information technology equipment - Safety - EN 60950-1 2006
Part 1: General requirements


1) 2)
IEC 61010-1 - Safety requirements for electrical equipment EN 61010-1 2001
for measurement, control, and laboratory + corr. June 2002
use -
Part 1: General requirements


1) 2)
IEC 61076-4-100 - Connectors for electronic equipment - EN 61076-4-100 2001
Part 4-100: Printed board connectors with
assessed quality - Detail specification for
two-part connector modules having a grid of
2,5 mm for printed boards and backplanes


1) 2)
IEC 61969-3 - Mechanical structures for electronic EN 61969-3 2001
equipment - Outdoor enclosures -
Part 3: Sectional specification - Climatic,
mechanical tests and safety aspects for
cabinets and cases

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NORME CEI
INTERNATIONALE
IEC



61587-1
INTERNATIONAL


Deuxième édition
STANDARD

Second edition

2007-03


Structures mécaniques
pour équipement électronique –
Essais pour la CEI 60917 et la CEI 60297 –
Partie 1:
Essais climatiques, mécaniques et aspects de la
sécurité des baies, bâtis, bacs à cartes et châssis

Mechanical structures for electronic equipment –
Tests for IEC 60917 and IEC 60297 –
Part 1:
Climatic, mechanical tests and safety aspects
for cabinets, racks, subracks and chassis
© IEC 2007 Droits de reproduction réservés ⎯ Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in any
utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including
électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: [phone] Telefax: [phone] E-mail: [e-mail] Web: www.iec.ch
CODE PRIX
T
PRICE CODE
Commission Electrotechnique Internationale
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue

---------------------- Page: 6 ----------------------

61587-1 © IEC:2007 – 3 –
CONTENTS
FOREWORD.7

1 Scope and object.11
2 Normative references .11
3 General .13
4 Climatic tests.15
4.1 General .15
4.2 Cold, dry heat and damp heat (cyclic) .17
4.3 Industrial atmosphere.19
5 Mechanical tests.21
5.1 General .21
5.2 Static mechanical load tests .21
5.3 Dynamic mechanical load tests .31
6 Safety aspects.45
6.1 General .45
6.2 Earth bond .45
6.3 Flammability.45
6.4 Degrees of protection provided by enclosures (IP Code) .45

Figure 1 – Lifting test for cabinets and racks.21
Figure 2 – Stiffness test for cabinets and racks.23
Figure 3 – Test set up for subracks for the static load test .25
Figure 4 – Static load test, distributed dummy load locations .27
Figure 5 – Static load test, single force .27
Figure 6 – Static load test, distributed dummy load locations .29
Figure 7 – Static load test, single force .29
Figure 8 – Test set up for a cabinet for vibration and shock tests.33
Figure 9 – Test set up for subracks for vibration and shock tests .37

Table 1 – Examples showing references to tests.15
Table 2 – Performance levels for cold, dry heat and damp heat .17
Table 3 – Performance levels for industrial atmosphere .19
Table 4 – Performance levels for lifting and stiffness .23
Table 5 – Static mechanical load performance levels for subracks of the IEC 60297
series .27
Table 6 – Static mechanical load performance levels for subracks of the IEC 60917
series .31
Table 7 – Static load distribution within the cabinet.33
Table 8 – Vibration and shock performance levels for cabinets .35
Table 9 – Test set-up for subracks according to the IEC 60297 series .39
Table 10 – Test set-up for subracks according to the IEC 60917 series .39

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61587-1 © IEC:2007 – 5 –
Table 11 – Vibration and shock performance levels for subracks .41
Table 12 – Impact performance levels for cabinets .43
Table 13 – Degrees of protection provided by enclosures (IP Code) .47

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61587-1 © IEC:2007 – 7 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________

MECHANICAL STRUCTURES FOR ELECTRONIC EQUIPMENT –
TESTS FOR IEC 60917 AND IEC 60297 –

Part 1: Climatic, mechanical tests and safety aspects
for cabinets, racks, subracks and chassis


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.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61587-1 has been prepared by IEC sub-committee 48D:
Mechanical structures for electronic equipment, of IEC technical committee 48:
Electromechanical components and mechanical structures for electronic equipment.
This second edition cancels and replaces the first edition published in 1999. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
1) Table 3: Performance levels for industrial atmosphere. In addition to the existing
performance levels extended values (E) are implemented.

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61587-1 © IEC:2007 – 9 –
2) Table 8: Vibration and shock performance levels for cabinets. Change of values in
accordance to IEC 60721-3-3 was necessary to meet the more practical test levels.
3) Table 11: Vibration and shock performance levels for subracks: Change of values in
accordance to IEC 60721-3-3 was necessary to meet the more practical test levels.
The text of this standard is based on the following documents:
FDIS Report on voting
48D/352/FDIS 48D/356/RVD

Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
A list of all parts of the IEC 61587 series, under the general title Mechanical structures for
electronic equipment – Tests for IEC 60917 and IEC 60297, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.

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61587-1 © IEC:2007 – 11 –
MECHANICAL STRUCTURES FOR ELECTRONIC EQUIPMENT –
TESTS FOR IEC 60917 AND IEC 60297 –

Part 1: Climatic, mechanical tests and safety aspects
for cabinets, racks, subracks and chassis



1 Scope and object
This part of IEC 61587 specifies mechanical tests, climatic tests and safety aspects for
cabinets, racks, subracks and chassis as defined in the standards of the IEC 60917 series
and the IEC 60297 series for indoor applications. It applies in whole or part only to the
mechanical structures of cabinets, racks, subracks and chassis, but it does not apply to
electronic equipment or systems. Tests dedicated to outdoor enclosures are standardized in
IEC 61969-3. Some suitable parts of IEC 61587-1 apply to IEC 61969-3.
The object of this standard is to ensure physical integrity and environmental performance in
cabinets, racks, subracks and chassis, taking into account the need for different levels of
performance in different applications. It is intended to give the user a level of confidence in
the selection of performance levels to meet as close as possible the individual application
requirements.
2 Normative references
The following referenced documents are indispensable for the application of this document.
For dated references, only the edition cited applies. For undated references, the latest edition
of the referenced document (including any amendments) applies.
IEC 60068-1, Environmental testing – Part 1: General and guidance
IEC 60068-2-1, Environmental testing – Part 2: Tests – Tests A: Cold
IEC 60068-2-2, Environmental testing – Part 2: Tests – Tests B: Dry heat
IEC 60068-2-6, Environmental testing – Part 2: Tests – Test Fc: Vibration (sinusoidal)
IEC 60068-2-11, Environmental testing – Part 2: Tests – Test Ka: Salt mist
IEC 60068-2-27, Environmental testing – Part 2: Tests – Test Ea and guidance: Shock
IEC 60068-2-30, Environmental testing – Part 2: Tests – Test Db: Damp heat, cyclic (12 h +
12 h cycle)
IEC 60068-2-42, Environmental testing – Part 2-42: Tests – Test Kc: Sulphur dioxide test for
contacts and connections
IEC 60068-2-43, Environmental testing – Part 2-43: Tests – Test Kd: Hydrogen sulphide test
for contacts and connections

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61587-1 © IEC:2007 – 13 –
IEC 60068-2-49, Environmental testing – Part 2: Tests – Guidance to test Kc: Sulphur dioxide
test for contacts and connections
IEC 60068-2-52, Environmental testing – Part 2: Tests – Test Kb: Salt mist, cyclic (sodium,
chloride solution)
IEC 60068-2-75, Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests
IEC 60297 (all parts), Dimensions of mechanical structures of the 482,6 mm (19 in) series
IEC 60512-1-1, Connectors for electronic equipment – Tests and measurements – Part 1-1:
General examination – Test 1a: Visual examination
IEC 60529, Degrees of protection provided by enclosures (IP code)
IEC 60603-2,Connectors for frequencies below 3 MHz for use with printed boards – Part 2:
Detail specification for two – part connectors with assessed quality, for printed boards, for
basic grid of 2,54 mm (0,1 in) with common mounting features
IEC 60654-4, Operating conditions for industrial-process measurement and control equipment
– Part 4: Corrosive and erosive influences
IEC 60721-3-3, Classification of environmental conditions – Part 3-3: Classification of groups
of environmental parameters and their severities – Stationary use at weatherprotected
locations
IEC 60917, (all parts), Modular order for the development of mechanical structures for
electronic equipment practices
IEC 60950-1, Information technology equipment – Safety – Part 1: General requirements
IEC 61010-1, Safety requirements for electrical equipment for measurement, control and
laboratory use – Part 1: General requirements
IEC 61076-4-100, Connectors for electronic equipment – Part 4-100: Printed board
connectors with assessed quality – Detail specification for two-part connector modules having
a grid of 2,5 mm for printed boards and backplanes
IEC 61969-3, Mechanical structures for electronic equipment – Outdoor enclosures – Part 3:
Sectional specification – Climatic, mechanical tests and safety aspects for cabinets and cases
3 General
The specified levels of performance and kinds of tests of this standard can be combined as
required. Compliance to individual subclauses and levels is permissible. Individual tests and
severities are referred to by letters and numbers (see Table 1 for examples which show a
selection of representative and well-known values from each subclause and relevant table).

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61587-1 © IEC:2007 – 15 –
The various tests should be performed using the same specimen wherever it is possible.
Experience has shown that the sequence of tests listed in this standard (see also
IEC 60068-1) enables the test sequence to be performed using the same test specimen
except where the individual test results preclude further testing of the same specimen, i.e. the
test damages (destroys) the specimen.
Table 1 – Examples showing references to tests
Test Subrack IEC 60297 Subrack IEC 60917 Cabinet
series series
Climatic C1 C2 C3
Industrial atmosphere A1 A2 A3
Static load SL1 SL2 SL3 SL4 SL5 SL6 SL7
Dynamic load DL1 DL2 DL3 DL4 DL5 DL6
(shock and vibration)

Impact – – K1 K2 K3
Protection (IP) IP20 IP20 IP20 IP30 IP42 IP54
Seismic performance
Shielding performance

Application example:
A subrack in accordance with IEC 60917-2-2 complies with the following test requirements:
– climatic: C2 (see Table 2);
– industrial atmosphere: A1 (see Table 3);
– static load: SL2 (see Table 6);
– shock and vibration: DL1 (see Table 11);
– safety aspects: 6.1;
– protection to: IP30 (see Table 13).
4 Climatic tests
4.1 General
It is the objective of the climatic tests to ensure that cabinets, racks and subracks will survive
the particular environment in which they will normally operate without degradation or creating
a hazard.
Climatic tests shall be selected by reference to the application examples given in Table 2 for
cabinets, racks and subracks.
In order to claim compliance at a given level, all test criteria for that requirement level shall be
met.

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61587-1 © IEC:2007 – 17 –
4.2 Cold, dry heat and damp heat (cyclic)
Table 2 – Performance levels for cold, dry heat and damp heat
Perform- Intended applications Cold Dry heat
Damp heat according to
ance level according to according to IEC 60068-2-30
IEC 60068-2-1 IEC 60068-2-2 (cyclic 2×), variant 2,
upper limit
Tempe- Duration Tempe- Duration
rature (see rature (see
Note) Note)
°C
°C h °C h
C1 Enclosed spaces without
–10 16 55 16 55
particular stresses (for
example office, laboratory)
with temperatures between
–10 °C and +55 °C, 20 % to
80 % RH: non-condensing
C2 Enclosed spaces subject to –25 16 70 16 55
climatic stress (for example
production halls) with
temperatures between
–25 °C and +70 °C, 20 % to
80 % RH: non-condensing
C3 Extreme climatic stresses –40 16 85 16 55
(for example open air,
tropical climate) with
temperatures between
–40 °C and +85 °C, 20 % to
95 % RH: non-condensing
NOTE The duration shall be measured from the moment temperature stability of the test sample is reached.

Assessment following the tests:
a) Visual examination (see IEC 60512-1-1, test 1a).
b) Earth bond continuity check to be carried out in accordance with 6.1.

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61587-1 © IEC:2007 – 19 –
4.3 Industrial atmosphere
Table 3 – Performance levels for industrial atmosphere
 Test conditions

Sulphur dioxide test Salt mist test

and hydrogen sulphide Ka according
Perform- Assessment following
test, at 25 °C and 75 % to IEC 60068-
ance level Application examples the test
RH (extended range at 2-11
40 °C and 80 % RH) at 35 °C
according to (extended
IEC 60068-2-42, range as
IEC 60068-2-43 and IEC 60068-2-
IEC 60068-2-49 52)
SO HS NaCl
2 2
3 3 3 3
A1 (E) Moderate concentration of 10 cm /m 1 cm /m Visual examination (for
harmful substances, general example alteration in
4 days 4 days
industrial use with low surface finish, traces of
chemical emissions (for corrosion, colour, degree
...