EN 61587-2:2011
(Main)Mechanical structures for electronic equipment - Tests for IEC 60917 and IEC 60297 - Part 2: Seismic tests for cabinets and racks
Mechanical structures for electronic equipment - Tests for IEC 60917 and IEC 60297 - Part 2: Seismic tests for cabinets and racks
IEC 61587-2:2011 specifies seismic tests for cabinets and racks accommodated with IEC 60917 and 60297 series. It applies, in whole or in part, only to the mechanical structures of cabinets and racks for electronic equipment according to the above cited series of standards, while it does not apply to the electronic equipment or systems deemed to be installed within these mechanical structures. This standard does not apply either to a cabinet or a rack having an anti-seismic isolation structure, either external or internal. This standard aims to provide test conditions and criteria that constitute a reference to evaluate the ability of the mechanical structure of the cabinets or racks to acceptably withstand specified seismic intensities. For this purpose, this standard specifies test specimen conditions, such as dimensions (i.e. height, width and depth) of the cabinet and the rack, load distribution, structural test condition and the RRS (required response spectra) of single-axis or tri-axis acceleration as the seismic test wave condition. The single-axis or tri-axis acceleration is selectable. The second edition of this standard replaces the first edition published in 2000 and constitutes a technical revision. The main technical changes with regard to the previous edition are as follows: Edition 1.0 specified the test condition with one size of the cabinet, and one load distribution. The specified acceleration condition for the test specimen was single-axis and one of the RRS (required response spectra) specified in the standard was selected. The test was aimed to obtain the reference for the structural strength of the enclosure against the specified seismic intensity. Earthquakes are actually random phenomena that are much more carefully simulated by tri-axial simultaneous operation. The demand of tri-axial excitation has emerged as a more accurate representation of an earthquake.
Mechanische Bauweisen für elektronische Einrichtungen - Prüfungen für IEC 60917 und IEC 60297 - Teil 2: Seismische Prüfungen für Schränke und Gestelle
Structures mécaniques pour équipements électroniques - Essais pour la CEI 60917 et la CEI 60297 - Partie 2: Essais sismiques pour baies et bâtis
La CEI 61587-2:2011 spécifie les essais sismiques pour les baies et les bâtis des séries CEI 60917 et 60297. Elle s'applique, totalement ou partiellement, seulement aux structures mécaniques des baies et des bâtis pour les équipements électroniques conformes aux séries de normes précitées, mais elle ne s'applique pas aux équipements ou systèmes électroniques destinés à être installés à l'intérieur de ces structures mécaniques. La présente norme ne s'applique pas non plus à une baie ou un bâti équipé d'une structure d'isolation anti-sismique, qu'elle soit externe ou interne. La présente norme est destinée à fournir des conditions et des critères d'essai qui constituent une référence pour évaluer l'aptitude de la structure mécanique des baies ou des bâtis à résister de manière acceptable à des intensités sismiques spécifiées. Dans ce but, la présente norme spécifie des conditions pour le spécimen en essai, comme les dimensions (c'est-à-dire hauteur, largeur et profondeur) de la baie et du bâti, la répartition de charge, la condition de l'essai structurel et le SRS (spectre de réponse spécifié) de l'accélération à axe unique ou sur les trois axes comme condition d'onde d'essai sismique. Il est possible de choisir entre accélération à axe unique ou sur les trois axes. Cette deuxième édition annule et remplace la première édition parue en 2000, dont elle constitue une révision technique. Les principaux changements techniques par rapport à l'édition précédente sont les suivants: L'édition 1.0 spécifiait la condition d'essai avec une taille de baie et une répartition des charges. La condition d'accélération spécifiée pour le spécimen soumis à l'essai était monoaxiale et un des SRS (spectre de réponse spécifié) spécifiés dans la norme était choisi. L'essai était destiné à obtenir la référence pour la résistance structurelle de l'enveloppe par rapport à l'intensité sismique spécifiée. Les tremblements de terre sont réellement des phénomènes aléatoires qui sont bien mieux simulés par un fonctionnement sur les trois axes simultané. Le besoin d'une excitation sur les trois axes a émergé pour une évaluation plus approfondie des tremblements de terre.
Mehanske konstrukcije za elektronsko opremo - Preskusi za IEC 60917 in IEC 60297 - 2. del: Potresni preskusi za ohišja in stojala
Ta del IEC 61587 določa potresne preskuse za ohišja in stojala, ki jih vključujeta seriji IEC 60917 in 60297. V celoti ali delno velja samo za mehanske konstrukcije ohišij in stojal za elektronsko opremo, ki so v skladu z zgoraj navedenima serijama standardov, ne velja pa za elektronsko opremo ali sisteme, ki so vgrajeni znotraj teh mehanskih konstrukcij. Ta standard ne velja za ohišja ali stojala, ki imajo zunanjo ali notranjo protipotresno izolacijsko konstrukcijo. Namen tega standarda je zagotoviti preskusne pogoje in merila, ki sestavljajo referenco za ocenjevanje zmožnosti mehanskih konstrukcij ohišij ali stojal, da sprejemljivo prenesejo določeno potresno jakost. Za te namene ta standard določa pogoje preskusnega vzorca, kot so mere (tj. višino, širino in globino) ohišij in stojal, razporeditev obremenitve, pogoje strukturnih preskusov in RRS (spekter potrebnega odziva) enojnega ali triosnega pospeševanja inpogoje valovnega potresnega preskusa. Enojno ali triosno pospeševanje je izbirno.
General Information
Relations
Overview
EN 61587-2:2011 (IEC 61587-2:2011) defines seismic test procedures for the mechanical structures of electronic equipment cabinets and racks built to the IEC 60297 (19 in) and IEC 60917 modular series. The standard addresses how to set up test specimens, apply seismic excitation (single‑axis or tri‑axis), and evaluate structural performance. It applies only to the mechanical enclosure or rack structure - not to the electronic equipment installed inside - and excludes cabinets with anti‑seismic isolation systems.
Key topics and requirements
- Scope and applicability: Seismic qualification for cabinet/rack mechanical structures in accordance with IEC 60917 and IEC 60297; exclusion of anti‑seismic isolation designs and installed equipment.
- Test specimen conditions: Specification of specimen dimensions (height, width, depth) and load distribution to represent realistic installation conditions.
- Seismic excitation modes: Option to perform single‑axis or tri‑axis acceleration tests. The second edition adds formal tri‑axial excitation to better simulate real earthquake behavior.
- Required Response Spectra (RRS): Defines RRS waveforms and time‑history shapes used as input acceleration for seismic testing (selectable per test plan).
- Test setup and measurements: Guidance on mounting cabinets/racks to vibration tables, sensor placement, and measurement items to monitor structural response during and after tests.
- Assessment criteria: Post‑test inspection and evaluation procedures to determine whether the mechanical structure has acceptably withstood the selected seismic intensity.
Practical applications
EN 61587-2:2011 is used for:
- Manufacturers of racks, enclosures and 19‑inch cabinet systems to demonstrate structural robustness in seismic regions.
- Test laboratories performing seismic qualification and vibration testing for mechanical structures.
- Design and compliance engineers specifying cabinet/rack performance requirements for data centers, telecom shelters, industrial control rooms and other critical infrastructure.
- Procurement and specification teams requiring objective test references for supplier acceptance in earthquake‑prone locations.
Benefits include standardized test conditions, repeatable evaluation criteria and improved realism when using tri‑axial excitation to replicate earthquake effects.
Related standards
- IEC 60297 series (dimensions for 19 in systems)
- IEC 60917 series (modular mechanical structures)
- IEC 60068‑2‑6, IEC 60068‑2‑47, IEC 60068‑2‑57 (vibration and time‑history methods)
- IEC 60068‑3‑3 (guidance on seismic test methods)
Keywords: EN 61587-2:2011, IEC 61587-2, seismic tests, cabinets and racks, mechanical structures, IEC 60297, IEC 60917, tri‑axial excitation, required response spectra (RRS), seismic qualification.
Frequently Asked Questions
EN 61587-2:2011 is a standard published by CLC. Its full title is "Mechanical structures for electronic equipment - Tests for IEC 60917 and IEC 60297 - Part 2: Seismic tests for cabinets and racks". This standard covers: IEC 61587-2:2011 specifies seismic tests for cabinets and racks accommodated with IEC 60917 and 60297 series. It applies, in whole or in part, only to the mechanical structures of cabinets and racks for electronic equipment according to the above cited series of standards, while it does not apply to the electronic equipment or systems deemed to be installed within these mechanical structures. This standard does not apply either to a cabinet or a rack having an anti-seismic isolation structure, either external or internal. This standard aims to provide test conditions and criteria that constitute a reference to evaluate the ability of the mechanical structure of the cabinets or racks to acceptably withstand specified seismic intensities. For this purpose, this standard specifies test specimen conditions, such as dimensions (i.e. height, width and depth) of the cabinet and the rack, load distribution, structural test condition and the RRS (required response spectra) of single-axis or tri-axis acceleration as the seismic test wave condition. The single-axis or tri-axis acceleration is selectable. The second edition of this standard replaces the first edition published in 2000 and constitutes a technical revision. The main technical changes with regard to the previous edition are as follows: Edition 1.0 specified the test condition with one size of the cabinet, and one load distribution. The specified acceleration condition for the test specimen was single-axis and one of the RRS (required response spectra) specified in the standard was selected. The test was aimed to obtain the reference for the structural strength of the enclosure against the specified seismic intensity. Earthquakes are actually random phenomena that are much more carefully simulated by tri-axial simultaneous operation. The demand of tri-axial excitation has emerged as a more accurate representation of an earthquake.
IEC 61587-2:2011 specifies seismic tests for cabinets and racks accommodated with IEC 60917 and 60297 series. It applies, in whole or in part, only to the mechanical structures of cabinets and racks for electronic equipment according to the above cited series of standards, while it does not apply to the electronic equipment or systems deemed to be installed within these mechanical structures. This standard does not apply either to a cabinet or a rack having an anti-seismic isolation structure, either external or internal. This standard aims to provide test conditions and criteria that constitute a reference to evaluate the ability of the mechanical structure of the cabinets or racks to acceptably withstand specified seismic intensities. For this purpose, this standard specifies test specimen conditions, such as dimensions (i.e. height, width and depth) of the cabinet and the rack, load distribution, structural test condition and the RRS (required response spectra) of single-axis or tri-axis acceleration as the seismic test wave condition. The single-axis or tri-axis acceleration is selectable. The second edition of this standard replaces the first edition published in 2000 and constitutes a technical revision. The main technical changes with regard to the previous edition are as follows: Edition 1.0 specified the test condition with one size of the cabinet, and one load distribution. The specified acceleration condition for the test specimen was single-axis and one of the RRS (required response spectra) specified in the standard was selected. The test was aimed to obtain the reference for the structural strength of the enclosure against the specified seismic intensity. Earthquakes are actually random phenomena that are much more carefully simulated by tri-axial simultaneous operation. The demand of tri-axial excitation has emerged as a more accurate representation of an earthquake.
EN 61587-2:2011 is classified under the following ICS (International Classification for Standards) categories: 31.240 - Mechanical structures for electronic equipment. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 61587-2:2011 has the following relationships with other standards: It is inter standard links to EN 61587-2:2001. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase EN 61587-2:2011 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CLC standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2012
1DGRPHãþD
SIST EN 61587-2:2002
Mehanske konstrukcije za elektronsko opremo - Preskusi za IEC 60917 in IEC
60297 - 2. del: Potresni preskusi za ohišja in stojala
Mechanical structures for electronic equipment - Tests for IEC 60917 and IEC 60297 -
Part 2: Seismic tests for cabinets and racks
Mechanische Bauweisen für elektronische Einrichtungen - Prüfungen für IEC 60917 und
IEC 60297 - Teil 2: Seismische Prüfungen für Schränke und Gestelle
Structures mecaniques pour équipements électroniques - Essais pour la CEI 60917 et la
CEI 60297 - Partie 2: Essais sismiques pour baies et bâtis
Ta slovenski standard je istoveten z: EN 61587-2:2011
ICS:
31.240 Mehanske konstrukcije za Mechanical structures for
elektronsko opremo electronic equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 61587-2
NORME EUROPÉENNE
October 2011
EUROPÄISCHE NORM
ICS 31.240 Supersedes EN 61587-2:2001
English version
Mechanical structures for electronic equipment -
Tests for IEC 60917 and IEC 60297 -
Part 2: Seismic tests for cabinets and racks
(IEC 61587-2:2011)
Structures mécaniques pour équipements Mechanische Bauweisen für elektronische
électroniques - Einrichtungen -
Essais pour la CEI 60917 Prüfungen für IEC 60917 und IEC 60297 -
et la CEI 60297 - Teil 2: Seismische Prüfungen für
Partie 2: Essais sismiques pour baies et Schränke und Gestelle
bâtis (IEC 61587-2:2011)
(CEI 61587-2:2011)
This European Standard was approved by CENELEC on 2011-09-29. 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, 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
Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61587-2:2011 E
Foreword
The text of document 48D/471/FDIS, future edition 2 of IEC 61587-2, 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 approved by
CENELEC as EN 61587-2:2011.
The following dates are fixed:
(dop) 2012-06-29
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2014-09-29
standards conflicting with the
document have to be withdrawn
This document supersedes EN 61587-2:2001.
EN 61587-2:2001 specified the test condition with one size of the cabinet, and one load distribution. The
specified acceleration condition for the test specimen was single-axis and one of the RRS (required
response spectra) specified in the standard was selected. The test was aimed to obtain the reference for
the structural strength of the enclosure against the specified seismic intensity. Earthquakes are actually
random phenomena that are much more carefully simulated by tri-axial simultaneous operation. The
demand of tri-axial excitation has emerged as a more accurate representation of an earthquake.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent
rights.
Endorsement notice
The text of the International Standard IEC 61587-2:2011 was approved by CENELEC as a European
Standard without any modification.
- 3 - EN 61587-2:2011
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
IEC 60068-2-6 - Environmental testing - EN 60068-2-6 -
Part 2-6: Tests - Test Fc: Vibration
(sinusoidal)
IEC 60068-2-47 - Environmental testing - EN 60068-2-47 -
Part 2-47: Tests - Mounting of specimens for
vibration, impact and similar dynamic tests
IEC 60068-2-57 - Environmental testing - EN 60068-2-57 -
Part 2-57: Tests - Test Ff: Vibration - Time-
history method
IEC 60068-3-3 - Environmental testing - EN 60068-3-3 -
Part 3: Guidance - Seismic test methods for
equipments
IEC 60297 Series Dimensions of mechanical structures of the EN 60297 Series
482,6 mm (19 in) series
IEC 60917 Series Modular order for the development of EN 60917 Series
mechanical structures for electronic
equipment practices
IEC 61587-2 ®
Edition 2.0 2011-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Mechanical structures for electronic equipment – Tests for IEC 60917 and
IEC 60297 –
Part 2: Seismic tests for cabinets and racks
Structures mécaniques pour équipements électroniques – Essais pour la
CEI 60917 et la CEI 60297 –
Partie 2: Essais sismiques pour baies et bâtis
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX N
ICS 31.240 ISBN 978-2-88912-624-8
– 2 – 61587-2 © IEC:2011
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Set up of test specimen and measurement items . 7
4.1 Introductory remarks . 7
4.2 General . 7
4.3 Set up of the cabinets or racks to the vibration table . 8
4.4 Measurement items . 8
5 Test waveform and acceleration condition . 9
5.1 Introductory remarks . 9
5.2 General . 9
5.3 Single-axis acceleration . 9
5.4 Triaxial acceleration . 10
6 Assessment following the test. 13
Annex A (informative) Vibration generators and information . 14
Figure 1 – Cabinets or racks configuration for test set up . 7
Figure 2 – Block diagram of test set up configuration . 8
Figure 3 – The RRS for test wave (damping ratio 2 %) . 10
Figure 4 – Time-history of the test wave . 10
Figure 5 – The RRS for test wave (damping ratio 3 %) . 11
Figure 6 – Time-history of test wave for each axis . 12
Table 1 – Load distribution within the cabinet . 8
61587-2 © IEC:2011 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
MECHANICAL STRUCTURES FOR ELECTRONIC EQUIPMENT –
TESTS FOR IEC 60917 AND IEC 60297 –
Part 2: Seismic tests for cabinets and racks
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
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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 itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
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 61587-2 has been prepared by subcommittee 48D: Mechanical
structures for electronic equipment, of IEC technical committee 48: Electromechanical
components and mechanical structures for electronic equipment.
The second edition of this standard replaces the first edition issued in 2000 and constitutes a
technical revision.
The main technical changes with regard to the previous edition are as follows:
Edition 1.0 specified the test condition with one size of the cabinet, and one load distribution.
The specified acceleration condition for the test specimen was single-axis and one of the RRS
(required response spectra) specified in the standard was selected. The test was aimed to
obtain the reference for the structural strength of the enclosure against the specified seismic
intensity. Earthquakes are actually random phenomena that are much more carefully
simulated by tri-axial simultaneous operation. The demand of tri-axial excitation has emerged
as a more accurate representation of an earthquake.
– 4 – 61587-2 © IEC:2011
The text of this standard is based on the following documents:
FDIS Report on voting
48D/471/FDIS 48D/486/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.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
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 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
...
이 기사는 EN 61587-2:2011 표준에 대해 논의하고 있으며, 이 표준은 전자 장비에 사용되는 캐비닛과 랙의 지진 시험을 규정합니다. 이 표준은 캐비닛과 랙의 기계 구조에 적용되며, 전자 장비 자체에는 적용되지 않습니다. 또한, 외부나 내부의 안티 지진 격리 구조가 있는 캐비닛이나 랙에도 적용되지 않습니다. 이 표준은 캐비닛이나 랙의 기계 구조가 지정된 지진 강도를 받을 수 있는 능력을 적합하게 평가하기 위한 테스트 조건과 기준을 제공하기 위한 것입니다. 이를 위해 이 표준은 테스트 시편의 조건, 캐비닛과 랙의 크기 (높이, 너비, 깊이), 하중 분포, 구조 테스트 조건 및 단일축 또는 삼축 가속도로 구성된 필요한 반응 스펙트라 (RRS)를 지진 테스트 파동 조건으로 지정합니다. 단일축 또는 삼축 가속도는 선택 가능합니다. 이 표준의 제2판은 2000년에 발표된 제1판을 대체하며 기술적 개정을 포함합니다. 이전 판과 비교하여 주요한 기술적 변경 사항은 다음과 같습니다. 제1판은 캐비닛의 한 크기와 하중 분포로 테스트 조건을 지정했습니다. 테스트 시편의 가속도 조건은 단일축이었으며, 표준에서 지정된 필요한 반응 스펙트라 (RRS) 중 하나가 선택되었습니다. 이 테스트는 지정된 지진 강도에 대한 케이스의 구조적 강도에 대한 참고 자료를 얻기 위한 것이었습니다. 지진은 실제로 더욱 신중하게 삼축 동시 운전으로 시뮬레이션되는 무작위 현상입니다. 지진을 더 정확하게 표현하기 위해 삼축 가속도의 수요가 등장했습니다.
The article discusses the standard EN 61587-2:2011, which specifies seismic tests for cabinets and racks used with electronic equipment. This standard applies to the mechanical structures of cabinets and racks, but not the electronic equipment itself. It does not apply to cabinets or racks with anti-seismic isolation structures. The standard provides test conditions and criteria to evaluate the ability of the mechanical structure to withstand specified seismic intensities. The second edition of this standard is a technical revision and includes changes such as specifying tri-axis acceleration as a more accurate representation of an earthquake.
この記事は、EN 61587-2:2011の標準について説明しています。この標準は、電子機器に使用されるキャビネットやラックの耐震試験を規定しています。この標準は、キャビネットやラックの機械構造に適用されますが、電子機器自体には適用されません。また、アンチシーズミック（耐震）の絶縁構造を持つキャビネットやラックにも適用されません。この標準は、キャビネットやラックの機械構造が指定された耐震強度に耐える能力を適切に評価するための試験条件や基準を提供することを目的としています。そのため、この標準では、試験体の条件（キャビネットやラックの寸法、負荷分布、構造試験条件）、必要な応答スペクトル（RRS）として指定される単軸または三軸加速度を地震試験波形の条件として指定しています。単軸または三軸加速度は選択可能です。この標準の第2版は、2000年に発行された第1版を置き換える技術的な改訂を含んでいます。以前の版と比較して、主な技術的な変更点は次のとおりです。第1版では、1つのキャビネットのサイズと負荷分布で試験条件が指定されていました。試験体の加速度条件は単軸であり、標準で指定される必要な応答スペクトル（RRS）のうち1つが選択されました。この試験は、指定された耐震強度に対するケースの構造耐久性の参考資料を得るためのものでした。地震は実際にはランダムな現象であり、より正確に再現するために三軸同時運転が要求されるようになりました。
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