EN 62610-5:2016

SLOVENSKI STANDARD
01-september-2016
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Mechanical structures for electrical and electronic equipment - Thermal management for
cabinets in accordance with IEC 60297 and IEC 60917 series - Part 5: Cooling
performance evaluation for indoor cabinets (IEC 62610-5:2016)
Ta slovenski standard je istoveten z: EN 62610-5:2016
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 62610-5
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2016
ICS 31.240
English Version
Mechanical structures for electrical and electronic equipment -
Thermal management for cabinets in accordance with IEC
60297 and IEC 60917 series - Part 5: Cooling performance
evaluation for indoor cabinets
(IEC 62610-5:2016)
Structures mécaniques pour équipements électriques et Mechanische Bauweisen für elektronische Einrichtungen -
électroniques - Gestion thermique pour les armoires Wärmemanagement für Schränke nach den Reihen IEC
conformes aux séries IEC 60297 et IEC 60917 - Partie 5: 60297 und IEC 60917 - Teil 5: Bewertung der Kühlleistung
Évaluation des performances de refroidissement pour les für Innenraumschränke
baies intérieures (IEC 62610-5:2016)
(IEC 62610-5:2016)
This European Standard was approved by CENELEC on 2016-05-25. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, 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: Avenue Marnix 17, B-1000 Brussels
© 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 62610-5:2016 E
European foreword
The text of document 48D/591/CDV, future edition 1 of IEC 62610-5, prepared by
SC 48D “Mechanical structures for electrical and electronic equipment” of IEC/TC 48 “Electrical
connectors and mechanical structures for electrical and electronic equipment" was submitted to the
IEC-CENELEC parallel vote and approved by CENELEC as EN 62610-5:2016.

The following dates are fixed:
• latest date by which the document has to be (dop) 2017-02-25
implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2019-05-25
• latest date by which the national
standards conflicting with the
document have to be withdrawn
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 62610-5:2016 was approved by CENELEC as a European
Standard without any modification.

IEC 62610-5 ®
Edition 1.0 2016-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Mechanical structures for electrical and electronic equipment – Thermal

management for cabinets in accordance with IEC 60297 and IEC 60917 series –

Part 5: Cooling performance evaluation for indoor cabinets

Structures mécaniques pour équipements électriques et électroniques – Gestion

thermique pour les armoires conformes aux séries IEC 60297 et IEC 60917 –

Partie 5: Évaluation des performances de refroidissement pour les baies

intérieures
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.240 ISBN 978-2-8322-3308-5

– 2 – IEC 62610-5:2016 © IEC 2016
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references. 6
3 Terms and definitions . 6
4 Cabinet cooling class criteria . 8
5 Cooling performance of cabinets . 9
5.1 General . 9
5.2 Cooling method of indoor cabinets . 9
5.2.1 Classification of cooling methods . 9
5.2.2 Cooling performances . 10
5.2.3 Concept for temperature rise . 10
5.2.4 Temperature rise limits . 10
5.3 Natural convection cooling . 10
5.4 Natural ventilation cooling . 11
5.5 Forced air cooling (forced ventilation) . 11
5.6 Representative examples of calculated cooling performance . 12
Annex A (informative) Background information . 13
A.1 Air velocity calculation of natural ventilation . 13
A.2 Background information of the validation test results by CFD simulations . 13

Figure 1 – Natural convection cooling . 8
Figure 2 – Natural ventilation cooling . 9
Figure 3 – Forced air cooling . 9
Figure 4 – Velocity of natural convection as a function of cabinet height . 11
Figure A.1 – Balanced force on internal air of a cabinet . 13
Figure A.2 – Thermal simulation example – Type A . 14
Figure A.3 – Thermal simulation example – Type B . 15
Figure A.4 – Thermal simulation example – Type C . 16
Figure A.5 – Thermal simulation example – Type D . 17
Figure A.6 – Thermal simulation example – Type E . 18

Table 1 – Classification of cooling method . 10
Table 2 – Representative examples of calculated cooling performances . 12

IEC 62610-5:2016 © IEC 2016 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
MECHANICAL STRUCTURES FOR ELECTRICAL
AND ELECTRONIC EQUIPMENT –
THERMAL MANAGEMENT FOR CABINETS IN
ACCORDANCE WITH IEC 60297 AND IEC 60917 SERIES –

Part 5: Cooling performance evaluation for indoor cabinets

FOREWORD
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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 62610-5 has been prepared by subcommittee 48D: Mechanical
structures for electrical and electronic equipment, of IEC technical committee 48:Electrical
connectors and mechanical structures for electrical and electronic equipment.
The text of this standard is based on the following documents:
CDV Report on voting
48D/591/CDV 48D/604/RVC
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.

– 4 – IEC 62610-5:2016 © IEC 2016
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 62610 series, published under the general title Mechanical
structures for electrical and electronic equipment – Thermal management for cabinets in
accordance with IEC 60297 and IEC 60917 series, can be found on the IEC website.
Future standards in this series will carry the new general title as cited above. Titles of existing
standards in this series will be updated at the time of the next edition.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC website 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.
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.
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