IEC 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 .pdf

1、 IEC 62610-5 Edition 1.0 2016-04 INTERNATIONAL STANDARD NORME INTERNATIONALE 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 mcaniques

2、 pour quipements lectriques et lectroniques Gestion thermique pour les armoires conformes aux sries IEC 60297 et IEC 60917 Partie 5: valuation des performances de refroidissement pour les baies intrieures IEC 62610-5:2016-04(en-fr) colour inside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2016

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20、ions contactez-nous: csciec.ch. IEC 62610-5 Edition 1.0 2016-04 INTERNATIONAL STANDARD NORME INTERNATIONALE 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 indoo

21、r cabinets Structures mcaniques pour quipements lectriques et lectroniques Gestion thermique pour les armoires conformes aux sries IEC 60297 et IEC 60917 Partie 5: valuation des performances de refroidissement pour les baies intrieures INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECH

22、NIQUE INTERNATIONALE ICS 31.240 ISBN 978-2-8322-3308-5 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous as

23、surer que vous avez obtenu cette publication via un distributeur agr. colour inside 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 .

24、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 ventilati

25、on) 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 F

26、igure 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

27、 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 IEC 62610-5:2016 IEC 2016 3

28、 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 Commi

29、ssion (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 i

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39、on 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 c

40、onnectors 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

41、the above table. 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 cabine

42、ts 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 cont

43、ents 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 c

44、olour 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. IEC 62610-5:2016 IEC 2016 5 INTRODUCTION Indoor cabinets cont

45、aining 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 c

46、ooling 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 wit

47、h 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

48、 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

49、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 indo