IEC 61587-5:2013

Mechanical structures for electronic equipment - Tests for IEC 60917 and IEC 60297 - Part 5: Seismic tests for chassis, subracks and plug-in units

IEC 61587-5:2013 specifies seismic test requirements for chassis, subracks, and plug-in units as defined in the IEC 60297 and IEC 60917 series. It applies in whole or in part, only to the mechanical structures of chassis, subracks, and plug-in units for electronic equipment, according to the IEC 60297 and IEC 60917 series, and does not apply to electronic components, equipment or systems within the mechanical structures. The object of this standard is to establish a level of physical integrity of chassis, subracks, and plug-in units according to IEC 60297 and IEC 60917 series that may provide a level of survivability that will preserve functionality during and after a seismic occurrence. It is intended to provide the user with a high level of confidence in the selection of an equipment practice to meet such needs. Since IEC 60297 and IEC 60917 series chassis, subracks, and plug-in units come in many sizes, weights and mechanical complexities, it is not possible to define a single minimum seismic test requirement for all weight categories. Therefore, overall mass categories are defined in this standard. However, the mass distribution inside a chassis and subrack is considered "application-specific" and herein defined as "intended use". Key words: chassis, subracks, plug-in units, seismic tests

Structures mécaniques pour équipement électronique - Essais pour la CEI 60917 et la CEI 60297 - Partie 5: Essais sismiques pour châssis, bacs et unités enfichables

L'IEC 61587-5:2013 spécifie les exigences d'essai sismique pour les châssis, les bacs et les unités enfichables tels que définis dans les séries CEI 60297 et CEI 60917. Elle s'applique, en tout ou en partie, seulement aux structures mécaniques des châssis, des bacs et des unités enfichables pour les équipements électroniques, conformément aux séries CEI 60297 et CEI 60917, et ne s'applique pas aux équipements ou systèmes électroniques, aux équipements ou aux systèmes qui se trouvent à l'intérieur de ces structures mécaniques. L'objet de la présente norme est d'établir un niveau d'intégrité physique des châssis, des bacs et des unités enfichables, conformément aux séries CEI 60297 et CEI 60917, qui peut fournir un niveau de pérennité qui protégera la fonctionnalité pendant et après une occurrence sismique. L'objectif est d'aider l'utilisateur à mieux choisir une structure appropriée pour satisfaire à ses besoins spécifiques. Les châssis, les bacs et les unités enfichables décrits dans les CEI 60297 et CEI 60917 ont diverses tailles, poids et complexités mécaniques; aussi, on ne peut pas définir une seule exigence d'essai sismique minimum pour toutes les catégories de poids. Des catégories de masse globales sont donc définies dans cette norme. La distribution de masse à l'intérieur d'un châssis et d'un bac, toutefois considérée comme "spécifique à l'application", est ici définie dans son "utilisation prévue". Mots clés: châssis, bacs, unités enfichables, essai sismique

General Information

• Status: Published
• Publication Date: 09-Dec-2013
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 31.240 - Mechanical structures for electronic equipment
• Technical Committee: SC 48D - Mechanical structures for electrical and electronic equipment
• Drafting Committee: WG 2 - TC 48/SC 48D/WG 2
• Current Stage: PPUB - Publication issued
• Start Date: 31-Dec-2013
• Completion Date: 10-Dec-2013

Standards Content (Sample)

IEC 61587-5 ®
Edition 1.0 2013-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Mechanical structures for electronic equipment – Tests for IEC 60917
and IEC 60297 –
Part 5: Seismic tests for chassis, subracks and plug-in units

Structures mécaniques pour équipement électronique – Essais pour la
CEI 60917 et la CEI 60297 –
Partie 5: Essais sismiques pour châssis, bacs et unités enfichables
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IEC 61587-5 ®
Edition 1.0 2013-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Mechanical structures for electronic equipment – Tests for IEC 60917

and IEC 60297 –
Part 5: Seismic tests for chassis, subracks and plug-in units

Structures mécaniques pour équipement électronique – Essais pour la

CEI 60917 et la CEI 60297 –
Partie 5: Essais sismiques pour châssis, bacs et unités enfichables

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX T
ICS 31.240 ISBN 978-2-8322-1300-1

– 2 – 61587-5 © IEC:2013
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope and object . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Equipment test categories . 8
5 Test waveform and acceleration condition . 9
5.1 General . 9
5.2 General conditions . 9
5.3 Single-axis acceleration . 9
5.4 Tri-axial acceleration . 10
5.5 Specimen monitoring . 12
5.6 Seismic simulation . 13
6 Test setup and parts to be monitored . 13
6.1 General . 13
6.2 Category A – Plug-in units . 13
6.2.1 General . 13
6.2.2 Plug-in unit simulated load . 13
6.2.3 Plug-in unit test setup onto the test fixture . 15
6.2.4 Plug-in unit test fixture setup to the vibration table . 17
6.2.5 Plug-in unit mechanical parts under test . 18
6.2.6 Vibration response monitoring . 18
6.2.7 Plug-in unit measurements . 18
6.2.8 Test sequence . 19
6.2.9 Plug-in unit electrical parts test (free and fixed connector) . 19
6.2.10 Acceptance criteria . 19
6.3 Category B – Chassis or subracks . 19
6.3.1 General . 19
6.3.2 Chassis or subrack simulated load . 20
6.3.3 Chassis or subrack test setup onto the vibration table . 21
6.3.4 Chassis or subrack mechanical parts under test . 21
6.3.5 Vibration response monitoring . 21
6.3.6 Chassis or subrack measurements . 22
6.3.7 Test sequence . 22
6.3.8 Acceptance criteria . 22
Annex A (informative) Example of test setup reporting . 23
A.1 Subrack test setup reporting . 23
A.2 Plug-in unit test setup reporting . 23
Bibliography . 24

Figure 1 – RRS for the test wave (single-axis acceleration)(damping ratio 2,0 %) . 10
Figure 2 – Time history of the test wave (single-axis acceleration) . 10
Figure 3 – RRS for the test wave (tri-axial acceleration)(damping ratio 3 %) . 11
Figure 4 – Time history of the test wave for each axis (tri-axial acceleration) . 12

61587-5 © IEC:2013 – 3 –
Figure 5 – Plug-in unit intended use A load distribution (discrete) . 14
Figure 6 – Plug-in unit intended use B load distribution (compact) . 15
Figure 7 – Plug-in unit test setup – Subrack . 16
Figure 8 – Plug-in unit test setup – Chassis with integrated subrack . 17
Figure 9 – Block diagram of the plug-in unit test setup . 18
Figure 10 – Chassis or subrack test setup . 20
Figure 11 – Block diagram of the chassis or subrack test setup . 21

– 4 – 61587-5 © IEC:2013
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
MECHANICAL STRUCTURES FOR ELECTRONIC EQUIPMENT –
TESTS FOR IEC 60917 AND IEC 60297 –

Part 5: Seismic tests for chassis, subracks and plug-in units

FOREWORD
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