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 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. 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. Key words: Indoor cabinets, Thermal management, Cooling performance

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
23-Jun-2016
Current Stage
6060 - Document made available
Due Date
24-Jun-2016
Completion Date
24-Jun-2016

Buy Standard

Standard
EN 62610-5:2016 - BARVE na PDF-str 18,19,20,21,22
English language
20 pages
sale 10% off
Preview
sale 10% off
Preview

e-Library read for
1 day

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.

---------------------- Page: 1 ----------------------
SIST EN 62610-5:2016
---------------------- Page: 2 ----------------------
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
---------------------- Page: 3 ----------------------
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.
---------------------- Page: 4 ----------------------
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
---------------------- Page: 5 ----------------------
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

---------------------- Page: 6 ----------------------
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

services carried out by independent certification bodies.

6) All users should ensure that they have the latest edition of this publication.

7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

members of its technical committees and IEC National Committees for any personal injury, property damage or

other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC

Publications.

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.
---------------------- Page: 7 ----------------------
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.
---------------------- Page: 8 ----------------------
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.

---------------------- Page: 9 ----------------------
SIST EN 62610-5:2016
– 6 – IEC 62610-5:2016 © IEC 2016
MECHANICAL STRUCTURES FOR ELECTRICAL
AND ELECTRONIC EQUIPMENT –
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.