IEC TS 62610-2:2011

IEC/TS 62610-2 ®
Edition 1.0 2011-07
TECHNICAL
SPECIFICATION
SPÉCIFICATION
TECHNIQUE
Mechanical structures for electronic equipment – Thermal management for
cabinets in accordance with IEC 60297 and IEC 60917 series –
Part 2: Design guide: Method for the determination of forced air-cooling
structure
Structures mécaniques pour équipements électroniques – Gestion thermique
pour les armoires conformes aux séries CEI 60297 et CEI 60917 –
Partie 2: Guide de conception: Méthode pour la détermination de la structure
de refroidissement par ventilation forcée

IEC/TS 62610-2:2011
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IEC/TS 62610-2 ®
Edition 1.0 2011-07
TECHNICAL
SPECIFICATION
SPÉCIFICATION
TECHNIQUE
Mechanical structures for electronic equipment – Thermal management for
cabinets in accordance with IEC 60297 and IEC 60917 series –
Part 2: Design guide: Method for the determination of forced air-cooling
structure
Structures mécaniques pour équipements électroniques – Gestion thermique
pour les armoires conformes aux séries CEI 60297 et CEI 60917 –
Partie 2: Guide de conception: Méthode pour la détermination de la structure
de refroidissement par ventilation forcée

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX Q
ICS 31.240 ISBN 978-2-88912-588-3

– 2 – TS 62610-2  IEC:2011
CONTENTS
FOREWORD . 3

INTRODUCTION . 5

1 Scope and object . 6

2 Thermal interfaces . 6

2.1 Baseline thermal conditions . 6

2.2 Reference temperature . 6

2.3 Syntax of surfaces of a generic subrack, chassis or cabinet . 7

2.4 Preferred airflow conditions . 8
2.5 Cabinet airflow volume and temperature rise management . 9
3 Forced air thermal flow chart for cabinet equipment . 10
3.1 General . 10
3.2 Evaluation of the actual thermal performance of subrack or chassis . 11
3.3 Cabinet airflow considerations . 11
3.4 Arrangement of subracks and/or chassis equipment within the cabinet . 11
3.5 Selection of cabinet mounted forced air device(s) . 12
3.6 Thermal operating environment . 12
Annex A (informative) Limitation of application and background information . 14
Bibliography . 16

Figure 1 – Syntax of surfaces of a forced air cooled generic subrack or chassis to be
mounted into a cabinet . 7
Figure 2 – Syntax of surfaces of a forced air cooled generic cabinet . 7
Figure 3 – Preferred air flow patterns . 9
Figure 4 – Air flow volume management . 10
Figure 5 – Forced air thermal flow chart for cabinet equipment . 11
Figure 6 – Thermal operating environment (Cabinet sectional side view) . 12
Figure 7 – Example of effect of reference temperature on cabinet operating
temperature range . 13
Figure A.1 – Thermal network model for a plug-in unit in subrack or chassis . 15

Table 1 – Preferred airflow pattern . 8

TS 62610-2  IEC:2011 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
MECHANICAL STRUCTURES FOR ELECTRONIC EQUIPMENT –

THERMAL MANAGEMENT FOR CABINETS IN ACCORDANCE

WITH IEC 60297 AND IEC 60917 SERIES –

Part 2: Design guide: Method for the determination

of forced air-cooling structure

FOREWORD
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The main task of IEC technical committees is to prepare International Standards. In
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• the required support cannot be obtained for the publication of an International Standard,
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• the subject is still under technical development or where, for any other reason, there is the
future but no immediate possibility of an agreement on an International Standard.
Technical specifications are subject to review within three years of publication to decide
whether they can be transformed into International Standards.
IEC 62610-2 TS Ed.1.0, which is a technical specification, has been prepared by
subcommittee 48D: Mechanical structures for electronic equipment, of IEC technical

– 4 – TS 62610-2  IEC:2011
committee 48: Electromechanical components and mechanical structures for electronic

equipment.
The text of this technical specification is based on the following documents:

Enquiry draft Report on voting

48D/459/DTS 48D/470/RVC
Full information on the voting for the approval of this technical specification 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 62610 series, under the general title Mechanical structures for
electronic equipment – Thermal management for cabinets in accordance with IEC 60297 and
IEC 60917 series, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicate
...