ANSI UL 62108-2017 UL Standard for Safety Concentrator Photovoltaic (CPV) Modules and Assemblies C Design Qualification and Type Approval (Second Edition).pdf

1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 62108 Concentrator Photovoltaic (CPV) Modules and Assemblies Design Qualication and Type Approval STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRI

2、BUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Concentrator Photovoltaic (CPV) Modules and Assemblies Design Qualication and Type Approval, UL 62108 Second Edition, Dated June 1, 2

3、017 Summary of Topics This new edition of UL 62108 is an adoption of IEC 62108, Concentrator Photovoltaic (CPV) Modules and Assemblies Design Qualication and Type Approval (Second Edition, issued September 2016). Please note that there are no National Differences. The requirements are substantially

4、in accordance with Proposal(s) on this subject dated March 24, 2017. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwise without prior permission of UL.

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8、 error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. JUNE 1, 2017 UL 62108 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JUNE 1, 2017 UL 62108 tr2 No Text on This PageUL COP

9、YRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL June 1, 2017 1 UL 62108 Concentrator Photovoltaic (CPV) Modules and Assemblies Design Qualication and Type Approval First Edition January, 2012 Second Edition June 1, 2017 This ANSI/UL Standard for S

10、afety consists of the Second Edition dated June 1, 2017. The most recent designation of ANSI/UL 62108 as an American National Standard (ANSI) occurred on June 1, 2017. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page, or Preface. The National Difference Pag

11、e and IEC Foreword are also excluded from the ANSI approval of IEC-based standards. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS

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13、 UNDERWRITERS LABORATORIES INC. ANSI/UL 62108-2017UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JUNE 1, 2017 UL 62108 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION

14、FROM UL CONTENTS PREFACE 6 FOREWORD 7 1 Scope and object .9 2 Normative references 9 3 Terms and denitions 9 4 Sampling .10 5 Marking .12 6 Testing .12 7 Pass criteria .13 8 Report 22 9 Modications 23 10 Test procedures 23 10.1 Visual inspection .23 10.2 Electrical performance measurement .24 10.3 G

15、round path continuity test 28 10.4 Electrical insulation test .29 10.5 Wet insulation test 30 10.6 Thermal cycling test 31 10.7 Damp heat test 35 10.8 Humidity freeze test 36 10.9 Hail impact test 37 10.10 Water spray test 39 10.11 Bypass/blocking diode thermal test 41 10.12 Robustness of terminatio

16、ns test .44 10.13 Mechanical load test .46 10.14 Off-axis beam damage test .48 10.15 Outdoor exposure test .49 10.16 Hot-spot endurance test .50 10.17 Dust ingress protection test .50 ANNEX A (informative) Summary of test conditions and requirements ANNEX B (normative) Retesting guideline B.1 Produc

17、t or process modications requiring limited retesting to maintain certication 56 B.2 Modications of CPV cell technology .56 B.3 Modications in optical encapsulation on the cell (Includes optical coupling between the cell and a glass secondary optical element bonded to the cell) 57 B.4 Modication in c

18、ell encapsulation outside of intended light path 57 B.5 Modication of cell package substrate used for heat transfer 58 B.6 Accessible optics (primary or secondary) .58 B.7 Inaccessible optics (secondary) 59 B.8 Frame and/or mounting structure 59 B.9 Enclosure .59 B.10 Wiring compartment/junction box

19、 .60 B.11 Interconnection terminals 60 JUNE 1, 2017 UL 62108 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL B.12 Interconnection materials or technique (to cells and between receivers) .61 B.13 Change in electrical circuit design in an ide

20、ntical package .61 B.14 Output power .62 B.15 Thermal energy transfer means .62 B.16 Adhesives 62 JUNE 1, 2017 UL 62108 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JUNE 1, 2017 UL 62108 5 No Text on This PageUL COPYRIGHTED MATERIAL NOT

21、AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PREFACE This UL Standard is based on IEC Publication IEC 62108: Second edition Concentrator photovoltaic (CPV) modules and assemblies Design qualication and type approval. IEC publication IEC 62108 is copyrighted by the I

22、EC. These materials are subject to copyright claims of IEC and UL. No part of this publication may be reproduced in any form, including an electronic retrieval system, without the prior written permission of UL. All requests pertaining to the Concentrator photovoltaic (CPV) modules and assemblies De

23、sign qualication and type approval, 62108, Standard should be submitted to UL. Note Although the intended primary application of this Standard is stated in its Scope, it is important to note that it remains the responsibility of the users of the Standard to judge its suitability for their particular

24、 purpose. JUNE 1, 2017 UL 62108 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTERNATIONAL ELECTROTECHNICAL COMMISSION CONCENTRATOR PHOTOVOLTAIC (CPV) MODULES AND ASSEMBLIES DESIGN QUALIFICATION AND TYPE APPROVAL FOREWORD 1) The Internat

25、ional 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 electron

26、ic elds. To this end and in addition to other activities, IEC publishes International Standards, Technical Specications, Technical Reports, Publicly Available Specications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IE

27、C National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and nongovernmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardizati

28、on (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 representa

29、tion 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 cann

30、ot 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 publication

31、s. 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 certication bodies provide conformity assessment services and, in some areas, acces

32、s to IEC marks of conformity. IEC is not responsible for any services carried out by independent certication 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 individ

33、ual 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, th

34、is 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 th

35、is 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 62108 has been prepared by IEC technical committee 82: Solar photovoltaic energy systems. This second edition cancels and replaces the r

36、st edition, issued in 2007. It constitutes a technical revision. JUNE 1, 2017 UL 62108 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL The main technical changes with regard to the previous edition are as follows: a) Changes in outdoor expo

37、sure from 1000 h to 500 h. b) Changes in current cycling during thermal cycling test. c) Added dust ingress test. d) Eliminated thermal cycling associated with damp heat test. e) Eliminated UV exposure test. The text of this standard is based on the following documents: FDIS Report on voting 82/1142

38、/FDIS 82/1161/RVD 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 accordance with the ISO/IEC Directives, Part 2. The committee has decided that the contents of this publication w

39、ill remain unchanged until the stability date indicated on the IEC website under http:/webstore.iec.ch in the data related to the specic publication. At this date, the publication will be reconrmed, withdrawn, replaced by a revised edition, or amended. JUNE 1, 2017 UL 62108 8UL COPYRIGHTED MATERIAL

40、NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONCENTRATOR PHOTOVOLTAIC (CPV) MODULES AND ASSEMBLIES DESIGN QUALIFICATION AND TYPE APPROVAL 1 Scope and object This International Standard species the minimum requirements for the design qualication and type approva

41、l of concentrator photovoltaic (CPV) modules and assemblies suitable for long-term operation in general open-air climates as dened in IEC 60721-2-1. The test sequence is partially based on that specied in IEC 61215-1 for the design qualication and type approval of at-plate terrestrial crystalline si

42、licon PV modules. However, some changes have been made to account for the special features of CPV receivers and modules, particularly with regard to the separation of on-site and in-lab tests, effects of tracking alignment, high current density, and rapid temperature changes, which have resulted in

43、the formulation of some new test procedures or new requirements. The object of this test standard is to determine the electrical, mechanical, and thermal characteristics of the CPV modules and assemblies and to show, as far as possible within reasonable constraints of cost and time, that the CPV mod

44、ules and assemblies are capable of withstanding prolonged exposure in climates described in the scope. The actual life of CPV modules and assemblies so qualied will depend on their design, production, environment, and the conditions under which they are operated. This standard shall be used in conju

45、nction with the retest guidelines described in Annex B. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest

46、 edition of the referenced document (including any amendments) applies. IEC 60068-2-21:2006: Environmental testing Part 2-21: Tests Test U: Robustness of terminations and integral mounting devices IEC 60529: Degrees of protection provided by enclosures (IP Code) IEC 61215-2:2016: Terrestrial photovo

47、ltaic (PV) modules Design qualication and type approval Part 2: Test procedures IEC 62670-1, Photovoltaic concentrators (CPV) Performance testing Part 1: Standard conditions ANSI/UL 1703:2002, Standard for Safety: Flat-Plate Photovoltaic Modules and Panels 3 Terms and denitions For the purposes of t

48、his document, the following terms and denitions apply. See also Table TABLE. 3.1 concentrator term associated with photovoltaic devices that use concentrated sunlight JUNE 1, 2017 UL 62108 9UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3.2

49、 concentrator cell basic photovoltaic device that is used under the illumination of concentrated sunlight 3.3 concentrator optics optical device that performs one or more of the following functions from its input to output: increasing the light intensity, ltering the spectrum, modifying light intensity distribution, or changing light direction. Typically, it is a lens or a mirror Note 1 to entry: A primary optics receives unconcentrated sunlight directly from the