EN IEC 62610-2:2018

SLOVENSKI STANDARD
01-september-2018
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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 2: Method for the
determination of forced air cooling structure (IEC 62610-2:2018)
Ta slovenski standard je istoveten z: EN IEC 62610-2:2018
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 IEC 62610-2

NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2018
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 2: Method for the
determination of forced air cooling
(IEC 62610-2:2018)
Structures mécaniques pour équipements électriques et Mechanische Bauweisen für elektrische und elektronische
électroniques - Gestion thermique pour les armoires Einrichtungen - Wärmemanagement für Schränke nach den
conformes aux séries IEC 60297 ET IEC 60917 - Reihen IEC 60297 und IEC 60917 - Teil 2: Verfahren zur
Partie 2: Méthode pour la détermination du refroidissement Bestimmung der Zwangskühlungsstruktur
par ventilation forcée (IEC 62610-2:2018)
(IEC 62610-2:2018)
This European Standard was approved by CENELEC on 2018-06-20. 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, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62610-2:2018 E

European foreword
The text of document 48D/664/FDIS, future edition 1 of IEC 62610-2, 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 IEC 62610-2:2018.

The following dates are fixed:
• latest date by which the document has to be (dop) 2019-03-20
implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2021-06-20
• 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 shall not be held responsible for identifying any or all such patent rights.

Endorsement notice
The text of the International Standard IEC 62610-2:2018 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:

IEC 60297-3-100 NOTE Harmonized as EN 60297-3-100.
IEC 60297-3-101 NOTE Harmonized as EN 60297-3-101.
IEC 60917-2-1 NOTE Harmonized as EN 60917-2-1.
IEC 60917-2-2 NOTE Harmonized as EN 60917-2-2.
IEC 62610-5 NOTE Harmonized as EN 62610-5.
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 1  Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year

IEC 60917-1 -  Modular order for the development of EN 60917-1 -
mechanical structures for electronic
equipment practices -
Part 1: Generic standard
IEC 62610-2 ®
Edition 1.0 2018-05
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 2: Method for the determination of forced air cooling

Structures mécaniques pour équipements électriques et électroniques – Gestion

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

Partie 2: Méthode pour la détermination du refroidissement par ventilation forcée

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.240 ISBN 978-2-8322-5692-3

– 2 – IEC 62610-2:2018 © IEC 2018
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Thermal conditions . 7
4.1 Baseline thermal conditions . 7
4.2 Reference temperature . 7
4.3 Syntax of surfaces of a generic subrack, chassis or cabinet . 8
4.4 Preferred airflow conditions . 9
4.5 Cabinet airflow volume and temperature rise management . 10
5 Forced air thermal flow chart for cabinet equipment . 11
5.1 General . 11
5.2 Evaluation of the actual thermal performance of subrack or chassis . 12
5.3 Cabinet airflow considerations . 12
5.4 Arrangement of subracks and/or chassis-based equipment within the cabinet . 12
5.5 Selection of cabinet mounted forced air cooling device(s) . 13
5.6 Thermal operating environment . 13
5.7 Arrangement of cabinets in a server room and preferred airflow . 15
Annex A (informative) General method of thermal design for electronic equipment . 16
A.1 Thermal resistance and thermal network model . 16
A.1.1 Thermal resistance . 16
A.1.2 Thermal network model . 16
Bibliography . 19

Figure 1 – Syntax of surfaces of a forced air cooled generic subrack or chassis to be
mounted into a cabinet . 8
Figure 2 – Syntax of surfaces of a forced air cooled generic cabinet . 9
Figure 3 – Preferred cabinet airflow patterns. 10
Figure 4 – Airflow volume management . 11
Figure 5 – Forced air thermal flow chart for cabinet equipment . 12
Figure 6 – Thermal operating environment (cabinet sectional side view) . 14
Figure 7 – Cabinet operating temperature range . 15
Figure 8 – Example of cabinet airflows in an aisle containment server room . 15
Figure A.1 – Thermal network model for a plug-in unit in subrack or chassis . 18

Table 1 – Preferred airflow pattern . 9

IEC 62610-2:2018 © IEC 2018 – 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 2: Method for the determination of forced air cooling

FOREWORD
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