IEC 61587-5-2013 Mechanical structures for electronic equipment - Tests for IEC 60917 and IEC 60297 - Part 5 Seismic tests for chassis subracks and associated p.pdf

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1、 IEC 61587-5 Edition 1.0 2013-12 INTERNATIONAL STANDARD NORME INTERNATIONALE Mechanical structures for electronic equipment Tests for IEC 60917 and IEC 60297 Part 5: Seismic tests for chassis, subracks and plug-in units Structures mcaniques pour quipement lectronique Essais pour la CEI 60917 et la C

2、EI 60297 Partie 5: Essais sismiques pour chssis, bacs et units enfichables IEC61587-5:2013 colourinsideTHIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2013 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any for

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16、 avez des questions contactez-nous: csciec.ch. IEC 61587-5 Edition 1.0 2013-12 INTERNATIONAL STANDARD NORME INTERNATIONALE Mechanical structures for electronic equipment Tests for IEC 60917 and IEC 60297 Part 5: Seismic tests for chassis, subracks and plug-in units Structures mcaniques pour quipemen

17、t lectronique Essais pour la CEI 60917 et la CEI 60297 Partie 5: Essais sismiques pour chssis, bacs et units enfichables INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE T ICS 31.240 PRICE CODE CODE PRIX ISBN 978-2-8322-1300-1 Registered trademark of the Internati

18、onal Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale 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 agr. colourinside 2 61587-5

19、 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 accelerati

20、on 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 set

21、up 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 Ch

22、assis 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 se

23、quence 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

24、 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 F

25、igure 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 dia

26、gram 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 1) The International Electrotechnical Co

27、mmission (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 an

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37、tion may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 61587-5 has been prepared by subcommittee 48D: Mechanical structures for electronic equipment, of IEC technical committee 48: Electromechanical compon

38、ents and mechanical structures for electronic equipment. The text of this standard is based on the following documents: FDIS Report on voting 48D/549/FDIS 48D/553/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. T

39、his publication has been drafted in accordance with the ISO/IEC Directives, Part 2. 61587-5 IEC:2013 5 A list of all parts of 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

40、 decided that the contents of this publication will remain unchanged until the stability 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 a

41、mended. IMPORTANT The colour inside logo on the cover page of this publication indicates that it contains colours which are considered to be useful for the correct understanding of its contents. Users should therefore print this document using a colour printer. 6 61587-5 IEC:2013 INTRODUCTION This s

42、tandard is based on IEC 61587-2: Mechanical structures for electronic equipment Tests for IEC 60917 and IEC 60297 Part 2: Seismic tests for cabinets and racks and ATIS-0600329:2008:Network Equipment Earthquake Resistance. This standard sets forth test setups, performance requirements, and acceptance

43、 criteria for determining the robustness of chassis, subracks, and associated plug-in units according to the IEC 60297 and IEC 60917 series that may provide a level of survivability and preserve functionality during and after a seismic occurrence (an earthquake). This standard does not replace regio

44、nal seismic system, installation standards, or specifications. The intent of this standard is to provide a common methodology to perform and report seismic test conformance of chassis, subracks, and plug-in units according to the IEC 60297 and IEC 60917 series within a specified weight category. Mas

45、s distribution is based on the intended use. The terms “intended use” or “simulation of service condition” or “worst-case simulated configuration” are widely used in the telecom industry but also in the electronics industry. Seismic ground motion occurs simultaneously and randomly in all directions.

46、 Single-axis or tri-axis tests may be selected to simulate the seismic environment for testing. 61587-5 IEC:2013 7 MECHANICAL STRUCTURES FOR ELECTRONIC EQUIPMENT TESTS FOR IEC 60917 AND IEC 60297 Part 5: Seismic tests for chassis, subracks and plug-in units 1 Scope and object This part of IEC 61587

47、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

48、series, and does not apply to electronic components, equipment or systems within the mechanical structures. NOTE Subracks may be an integral part of a chassis (often called in the industry a shelf or a crate). The object of this standard is to establish a level of physical integrity of chassis, subr

49、acks, 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 m