SIST EN 62610-5:2016

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)

This part of IEC 62610 specifies a method for evaluating the cooling capacity mainly for air
convection cooling of empty cabinets in accordance with IEC 60297 and IEC 60917 series.

Mechanische Bauweisen für elektronische Einrichtungen - Wärmemanagement für Schränke nach den Reihen IEC 60297 und IEC 60917 - Teil 5: Bewertung der Kühlleistung für Innenraumschränke

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

IEC 62610-5:2016 spécifie une méthode d'évaluation de la capacité de refroidissement principalement appliquée au refroidissement par convection d'air de baies vides conformes aux séries IEC 60297 et IEC 60917. La présente norme a pour objet de classer les méthodes de refroidissement des baies intérieures vides, de simplifier les formules thermohydrauliques d'évaluation et de classification des performances de refroidissement des baies et de caractériser les performances de refroidissement pour des dimensions de baies représentatives basées sur l'IEC 60917 ou l'IEC 60297. Ainsi, la présente norme permet aux utilisateurs de choisir les solutions appropriées de refroidissement des baies adaptées à leurs applications.
Mots-clés: baies intérieures, Gestion thermique, performances de refroidissement

Mehanske konstrukcije za električno in elektronsko opremo - Uravnavanje toplote v omaricah v skladu s serijama IEC 60297 in IEC 60917 - 5. del: Ocenjevanje hladilnih lastnosti notranjih omaric (IEC 62610-5:2016)

Ta del standarda IEC 62610 določa metodo za ocenjevanje hladilne zmogljivosti predvsem za konvekcijsko hlajenje zraka v praznih omaricah v skladu s skupinami standardov IEC 60297 in IEC 60917.

General Information

• Status: Published
• Publication Date: 11-Jul-2016
• ICS: 31.240 - Mechanical structures for electronic equipment
• Technical Committee: I11 - Imaginarni 11
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Jun-2016
• Due Date: 06-Aug-2016
• Completion Date: 12-Jul-2016
• Ref Project: EN 62610-5:2016 - 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

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 62610-5:2016
01-september-2016
0HKDQVNHNRQVWUXNFLMH]DHOHNWULþQRLQHOHNWURQVNRRSUHPR8UDYQDYDQMHWRSORWH
YRPDULFDKYVNODGXVVHULMDPD,(&LQ,(&GHO2FHQMHYDQMH
KODGLOQLKODVWQRVWLQRWUDQMLKRPDULF,(&
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
SIST EN 62610-5:2016 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 62610-5:2016

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SIST EN 62610-5:2016


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

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SIST EN 62610-5:2016
EN 62610-5:2016
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.

2

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SIST EN 62610-5:2016




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



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 agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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SIST EN 62610-5:2016
– 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

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SIST EN 62610-5:2016
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
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 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
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6) All users should ensure that they have the latest edition of this publication.
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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 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.

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SIST EN 62610-5:2016
– 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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SIST EN 62610-5:2016
IEC 62610-5:2016 © IEC 2016 – 5 –
INTRODUCTION
Indoor cabinets containing electronic equipment in subrack(s) and/ or chassis provide cooling
by several different means, depending on the heat load of the equipment in the cabinet. In
most cases air convection is used for cooling. The cabinets can be sealed or non-sealed, and
may be equipped with fans for forced air cooling or rely on natural convention cooling without
fans. In addition the subrack(s) or chassis may contain their own fans or rely on natural
convention. Air convection systems are used to cool low to medium heat load applications.
Indoor cabinets containing subrack(s) and/ or chassis assembled with high heat load
electronic equipment typically are cooled by air to air heat exchangers or water supplied heat
exchangers, and are not considered in this standard.
Sealed cabinets are used for systems operated in an industrial atmosphere, to protect the
equipment against harsh environments, such as dust or water (IP), or provisions for EMC or
acoustic noise. Non-sealed cabinets are used in offices, laboratories or data centres, where
the environment is controlled.
The cooling performance of an electronic cabinet depends on the type of the cabinet, either
sealed or non-sealed, with or without air moving devices, ventilated or re-circulated, and also,
on the heat loads and the additional cooling systems (if any) of the equipment inside the
cabinet.
Therefore, it is difficult to determine properly the cooling capabilities of empty electronic
cabinets for various applications. This standard introduces a simplified method for an overall
cooling performance evaluation for empty indoor cabinets in accordance with IEC 60917 or
IEC 60297 series.
The purpose of this standard is to classify the cooling methods of empty indoor cabinets, to
simplify the thermal hydraulic formulae for the evaluation and classification of cabinet cooling
performances, and to exemplify the cooling performances for representative cabinet sizes
based on IEC 60917 or IEC 60297.
This enables the users to select the appropriate cabinet cooling solutions for their applications.

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SIST EN 62610-5:2016
– 6 – IEC 62610-5:2016 © IEC 2016
MECHANICAL STRUCTURES FOR ELECTRICAL
AND ELECTRONIC EQUIPMENT –
...