IEC 62610-2:2018

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 provides for compatible methods of configuring forced air cooled cabinets assembled with associated subracks and/or chassis in accordance with the IEC 60297 and IEC 60917 series.
This document contains the following:
a) thermal interfaces of subracks and/or chassis-based equipment in a cabinet, described by:
• reference temperature,
• preferred airflow conditions,
• airflow volume conditions,
• standard air;
b) procedures for determining compatible forced airflow conditions in a cabinet by applying typical thermal interface conditions.
The drawings used are not intended to indicate product design. They are only for explanatory indications for determining forced air cooling.
Keywords: Cabinets, Subracks, Forced Air Cooling, Thermal Management

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

IEC 62610-2:2018 fournit des méthodes compatibles destinées à configurer des armoires à refroidissement par ventilation forcée assemblées avec des bacs à cartes et/ou des châssis associés conformes aux séries de normes IEC 60297 et IEC 60917.
Le présent document contient ce qui suit:
a) des interfaces thermiques d’équipements composés de bacs à cartes et/ou de châssis à l’intérieur d’une armoire, décrites par:
· la température de référence,
· les conditions préférentielles de circulation d’air,
· les conditions de volume de circulation d’air,
· l'air normalisé;
b) des procédures pour déterminer des conditions de circulation d’air forcée compatibles dans une armoire en appliquant des conditions d’interface thermique typiques.
Les dessins utilisés ne sont pas destinés à indiquer la conception des produits. Ils n’ont qu’une vocation explicative pour la détermination du refroidissement par ventilation forcée.
Mots clés: armoires, bacs, refroidissement par ventilation forcée, gestion thermique

General Information

• Status: Published
• Publication Date: 15-May-2018
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 31.240 - Mechanical structures for electronic equipment
• Technical Committee: SC 48D - Mechanical structures for electrical and electronic equipment
• Drafting Committee: WG 5 - TC 48/SC 48D/WG 5
• Current Stage: PPUB - Publication issued
• Start Date: 01-Jun-2018
• Completion Date: 16-May-2018

Relations

• Revises: IEC TS 62610-2:2011 - Mechanical structures for electronic equipment - Thermal management for cabinets in accordance with IEC 60297 and IEC 60917 series - Part 2: Design guide: Method for determination of forced air-cooling structure
• Effective Date: 05-Sep-2023

Standards Content (Sample)

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

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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

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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International Standard IEC 6
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