1、 IEC 62798 Edition 1.0 2014-08 INTERNATIONAL STANDARD NORME INTERNATIONALE Industrial electroheating equipment Test methods for infrared emitters Chauffage lectrique industriel Mthodes dessais des metteurs de rayonnement infrarouge IEC 62798:2014-08(en-fr) THIS PUBLICATION IS COPYRIGHT PROTECTED Cop
2、yright 2014 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IEC or IECs member Na
3、tional Committee in the country of the requester. If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or your local IEC member National Committee for further information. Droits de reproduction rserv
4、s. Sauf indication contraire, aucune partie de cette publication ne peut tre reproduite ni utilise sous quelque forme que ce soit et par aucun procd, lectronique ou mcanique, y compris la photocopie et les microfilms, sans laccord crit de lIEC ou du Comit national de lIEC du pays du demandeur. Si vo
5、us avez des questions sur le copyright de lIEC ou si vous dsirez obtenir des droits supplmentaires sur cette publication, utilisez les coordonnes ci-aprs ou contactez le Comit national de lIEC de votre pays de rsidence. IEC Central Office Tel.: +41 22 919 02 11 3, rue de Varemb Fax: +41 22 919 03 00
6、 CH-1211 Geneva 20 infoiec.ch Switzerland www.iec.ch About the IEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Standards for all electrical, electronic and related technologies. About IEC publications The technical
7、content of IEC publications is kept under constant review by the IEC. Please make sure that you have the latest edition, a corrigenda or an amendment might have been published. IEC Catalogue - webstore.iec.ch/catalogue The stand-alone application for consulting the entire bibliographical information
8、 on IEC International Standards, Technical Specifications, Technical Reports and other documents. Available for PC, Mac OS, Android Tablets and iPad. IEC publications search - www.iec.ch/searchpub The advanced search enables to find IEC publications by a variety of criteria (reference number, text,
9、technical committee,). It also gives information on projects, replaced and withdrawn publications. IEC Just Published - webstore.iec.ch/justpublished Stay up to date on all new IEC publications. Just Published details all new publications released. Available online and also once a month by email. El
10、ectropedia - www.electropedia.org The worlds leading online dictionary of electronic and electrical terms containing more than 30 000 terms and definitions in English and French, with equivalent terms in 14 additional languages. Also known as the International Electrotechnical Vocabulary (IEV) onlin
11、e. IEC Glossary - std.iec.ch/glossary More than 55 000 electrotechnical terminology entries in English and French extracted from the Terms and Definitions clause of IEC publications issued since 2002. Some entries have been collected from earlier publications of IEC TC 37, 77, 86 and CISPR. IEC Cust
12、omer Service Centre - webstore.iec.ch/csc If you wish to give us your feedback on this publication or need further assistance, please contact the Customer Service Centre: csciec.ch. A propos de lIEC La Commission Electrotechnique Internationale (IEC) est la premire organisation mondiale qui labore e
13、t publie des Normes internationales pour tout ce qui a trait llectricit, llectronique et aux technologies apparentes. A propos des publications IEC Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possdez ldition la plus rcente, un corrigendum ou amendem
14、ent peut avoir t publi. Catalogue IEC - webstore.iec.ch/catalogue Application autonome pour consulter tous les renseignements bibliographiques sur les Normes internationales, Spcifications techniques, Rapports techniques et autres documents de lIEC. Disponible pour PC, Mac OS, tablettes Android et i
15、Pad. Recherche de publications IEC - www.iec.ch/searchpub La recherche avance permet de trouver des publications IEC en utilisant diffrents critres (numro de rfrence, texte, comit dtudes,). Elle donne aussi des informations sur les projets et les publications remplaces ou retires. IEC Just Published
16、 - webstore.iec.ch/justpublished Restez inform sur les nouvelles publications IEC. Just Published dtaille les nouvelles publications parues. Disponible en ligne et aussi une fois par mois par email. Electropedia - www.electropedia.org Le premier dictionnaire en ligne de termes lectroniques et lectri
17、ques. Il contient plus de 30 000 termes et dfinitions en anglais et en franais, ainsi que les termes quivalents dans 14 langues additionnelles. Egalement appel Vocabulaire Electrotechnique International (IEV) en ligne. Glossaire IEC - std.iec.ch/glossary Plus de 55 000 entres terminologiques lectrot
18、echniques, en anglais et en franais, extraites des articles Termes et Dfinitions des publications IEC parues depuis 2002. Plus certaines entres antrieures extraites des publications des CE 37, 77, 86 et CISPR de lIEC. Service Clients - webstore.iec.ch/csc Si vous dsirez nous donner des commentaires
19、sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 62798 Edition 1.0 2014-08 INTERNATIONAL STANDARD NORME INTERNATIONALE Industrial electroheating equipment Test methods for infrared emitters Chauffage lectrique industriel Mthodes dessais des metteurs de rayonnement i
20、nfrarouge INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE X ICS 25.180.10 PRICE CODE CODE PRIX ISBN 978-2-8322-1837-2 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make
21、 sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 IEC 62798:2014 IEC 2014 CONTENTS FOREWORD . 5 INTRODUCTION . 6 1 Scope and object . 7 2 Normative references 8 3 Terms and defin
22、itions 8 3.1 General . 8 3.2 Radiation 9 4 Classification of infrared emitters . 10 5 Type of tests and general conditions of their performance . 12 5.1 General list of tests 12 5.2 Test conditions . 15 5.2.1 Operating conditions during tests. 15 5.2.2 Standard environment for tests 15 5.2.3 Non-sta
23、ndard environment for tests . 15 5.2.4 Supply voltage . 15 5.3 Stationary condition 16 5.4 Number of emitters for tests 16 6 Measurements . 16 6.1 General . 16 6.2 Time resolution . 16 6.3 Measurement of electric data 16 6.4 Temperature measurement . 17 6.5 Irradiance and radiance measurement 17 6.6
24、 Spectral measurements 18 6.6.1 General . 18 6.6.2 Calculation as a surrogate for measurement 18 6.6.3 Required spectral range 18 6.6.4 Measurement conditions 18 6.6.5 Spectral measurements . 19 7 Technical tests 19 7.1 General . 19 7.2 Tests concerning cap and holder of emitter . 19 7.2.1 General .
25、 19 7.2.2 Cap and holder interchangeability 19 7.2.3 Cap twist-off test . 19 7.3 Power consumption characteristics . 19 7.3.1 Rated power 19 7.3.2 Variation of power with voltage 19 7.3.3 Inrush current 20 7.3.4 Emitter resistivity as estimate for rated power 20 7.4 Emitter temperature tests 20 7.4.
26、1 Rated temperature . 20 7.4.2 Variation of source temperature with voltage . 21 7.4.3 Source temperature rise time . 21 IEC 62798:2014 IEC 2014 3 7.4.4 Source temperature cooling time for quartz tube emitters 22 7.4.5 Source temperature cooling time for other emitters 22 7.4.6 Quartz tube cooling t
27、ime for quartz tube emitters . 22 7.4.7 Source temperature distribution . 22 7.4.8 Average temperature calculation from a thermal image 23 7.4.9 Surface temperature distribution 23 7.4.10 Distribution temperature 24 7.4.11 Thermal ruggedness 25 7.4.12 Pinching temperature of pinched emitters 25 7.5
28、Radiation characteristics . 25 7.5.1 General . 25 7.5.2 Radial irradiation distribution of tubular emitters 26 7.5.3 Reflectivity of a tubular emitter with applied reflector . 26 7.5.4 Planar irradiation field caused by an emitter 26 7.5.5 Angular irradiation distribution caused by an emitter 27 7.5
29、.6 Emitted spectrum . 27 7.5.7 Rated total radiant power . 28 7.5.8 Irradiation reaction time . 29 7.6 Mechanical ruggedness 29 7.6.1 Acceleration 29 7.6.2 Vibration 29 7.7 Lifetime of infrared emitters 29 7.7.1 General . 29 7.7.2 Criteria defining end of life . 30 7.7.3 Lifetime measurement . 30 7.
30、7.4 Induced lamp death for emitter with a tungsten coil . 31 7.7.5 Induced lamp death for other emitter . 31 7.7.6 Lifetime statement . 31 8 Emitter efficiency . 32 8.1 General . 32 8.2 Conversion efficiency 32 8.3 Transfer efficiency 32 8.3.1 General . 32 8.3.2 Simple approach 33 8.3.3 Ray-tracing
31、33 8.4 Irradiation efficiency 33 Annex A (informative) Thermal infrared radiation . 34 A.1 General . 34 A.2 Spectral emission . 34 A.3 Emissivity . 36 A.4 Conservation of tendue . 36 Annex B (informative) Infrared classification not used in this standard . 37 Annex C (normative) Measurement of spect
32、ral emission and spectral data of the emitter 38 C.1 General . 38 C.2 Comparative method . 38 C.3 Measurement of the spectral emissivity . 39 Annex D (informative) Zonal spherical factors 40 4 IEC 62798:2014 IEC 2014 Annex E (informative) Distribution of measurement positions for temperature measure
33、ments 42 E.1 Reference operating temperature 42 E.2 Temperature distribution coefficient 42 Annex F (informative) End of life criteria for infrared emitter 43 Annex G (normative) Cold state resistivity and rated power . 45 G.1 General . 45 G.2 Measuring with high accuracy for comparison . 45 G.3 Tem
34、perature influences on measurement accuracy . 45 G.4 Emitter manufacturing effects 46 G.5 Error contributions 46 Bibliography 47 Figure A.1 Spectral emissive power and accumulated power of a grey emitter at 1 800 C . 35 Figure D.1 Illustration of the measurement geometry for zonal spherical factors
35、. 41 Table 1 Classification of infrared emitters by spectral emission 11 Table 2 List of tests, their applicability to different classes of infrared emitters and the number of emitters needed for the tests 13 Table A.1 The generalised Wiens displacement law 35 Table B.1 Classification based on terms
36、 defined in IEC 60050-841:2004 37 Table D.1 Zonal spherical factors and corresponding angles 40 Table F.1 Instantaneous end-of-life 43 Table F.2 Gradual degradation. 44 IEC 62798:2014 IEC 2014 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ INDUSTRIAL ELECTROHEATING EQUIPMENT Test methods for infrared
37、 emitters 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 standardizat
38、ion 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 e
39、ntrusted 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 In
40、ternational 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 sin
41、ce 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
42、 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
43、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 a
44、ssessment 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, e
45、mployees, 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
46、 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 t
47、he 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 62798 has been prepared by IEC technical committee 27: Industrial electroheating and elect
48、romagnetic processing. The text of this standard is based on the following documents: CDV Report on voting 27/938/CDV 27/942/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. This publication has been drafted in ac
49、cordance with the ISO/IEC Directives, Part 2. 6 IEC 62798:2014 IEC 2014 INTRODUCTION This standard on particular test methods for infrared electroheating emitters is one of TC 27 standards that describe test methods for various types of electroheating installations. This standard is solely concerned with tests for infrared emitters. Tests that focus on the performance of infrared equipment or installations are covered by IEC
