1、 IEC 62716 Edition 1.0 2013-06 INTERNATIONAL STANDARD NORME INTERNATIONALE Photovoltaic (PV) modules Ammonia corrosion testing Modules photovoltaques (PV) Essai de corrosion lammoniac IEC62716:2013 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2013 IEC, Geneva, Switzerland All rights reserved. U
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15、ebstore.iec.ch/csc Si vous dsirez nous donner des commentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 62716 Edition 1.0 2013-06 INTERNATIONAL STANDARD NORME INTERNATIONALE Photovoltaic (PV) modules Ammonia corrosion testing Modules photovoltaques (PV) Essa
16、i de corrosion lammoniac INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE M ICS 27.160 PRICE CODE CODE PRIX ISBN 978-2-83220-887-8 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale W
17、arning! Make 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 62716 IEC:2013 CONTENTS FOREWORD . 3 1 Scope and object 5 2 Normative references . 5 3 Samples . 5 4 Test procedures
18、 . 9 General . 9 4.1Bypass diode functionality test 9 4.2Purpose . 9 4.2.1Apparatus 9 4.2.2Procedure 9 4.2.3Requirements 9 4.2.45 Preconditioning 10 6 Initial measurements 10 General . 10 6.1Crystalline silicon 10 6.2Thin-film technologies . 10 6.37 Ammonia resistance test procedure 10 Testing facil
19、ity and material . 10 7.1Test conditions and execution . 10 7.28 Cleaning and recovery 11 9 Final measurements . 11 General . 11 9.1Crystalline silicon 11 9.2Thin-film technologies . 12 9.310 Requirements . 12 General . 12 10.1Crystalline silicon 12 10.2Thin-film technologies . 12 10.311 Test report
20、 13 Figure 1 Ammonia resistance test sequence for crystalline PV modules . 7 Figure 2 Ammonia resistance test sequence for thin-film PV modules 8 Table 1 Test conditions 11 62716 IEC:2013 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ PHOTOVOLTAIC (PV) MODULES AMMONIA CORROSION TESTING FOREWORD 1) Th
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30、 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
31、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 62716 has been prepared by IEC technical committee 82: Solar photovoltaic energy systems. The text of this standard
32、 is based on the following documents: FDIS Report on voting 82/769/FDIS 82/778/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.
33、4 62716 IEC:2013 The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, r
34、eplaced by a revised edition, or amended. 62716 IEC:2013 5 PHOTOVOLTAIC (PV) MODULES AMMONIA CORROSION TESTING 1 Scope and object Photovoltaic (PV) modules are electrical devices intended for continuous outdoor exposure during their lifetime. Highly corrosive wet atmospheres, such as in the environm
35、ent of stables of agricultural companies, could eventually degrade some of the PV module components (corrosion of metallic parts, deterioration of the properties of some non-metallic materials such as protective coatings and plastics by assimilation of ammonia) causing permanent damages that could i
36、mpair their functioning and safe operation. This standard describes test sequences useful to determine the resistance of PV modules to ammonia (NH3). All tests included in the sequences, except the bypass diode functionality test, are fully described in IEC 61215, IEC 61646 and IEC 61730-2. They are
37、 combined in this standard to provide means to evaluate possible faults caused in PV modules when operating under wet atmospheres having high concentration of dissolved ammonia (NH3). This standard applies to flat plate PV modules. The structure of this standard follows closely IEC 61701. 2 Normativ
38、e 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 edition of the referenced document (including any amendments) app
39、lies. IEC 61215:2005, Crystalline silicon terrestrial photovoltaic (PV) modules Design qualification and type approval IEC 61646:2008, Thin-film terrestrial photovoltaic (PV) modules Design qualification and type approval IEC 61730-2:2004, Photovoltaic (PV) module safety qualification Part 2: Requir
40、ements for testing ISO/IEC 17025, General requirements for the competence of testing and calibration laboratories ISO 6988:1985, Metallic and other non organic coatings Sulfur dioxide test with general condensation of moisture 3 Samples Three identical samples of the model of PV module or assembly o
41、f interest shall be subjected to any of the testing sequences included in Figures 1 or 2, depending on the PV technology considered, namely crystalline silicon or thin-film respectively. As the figures indicate one of these samples should be used as a control. The control sample should be used as a
42、check every time the test samples are measured to evaluate the effect of the ammonia exposure test. 6 62716 IEC:2013 If a full-size sample is too large to fit into the environmental chambers required for the ammonia exposure test then a smaller representative sample may be specially designed and man
43、ufactured for this test. The representative sample should be carefully designed so that it can reveal similar failure mechanisms as the full-size one, and the fabrication process of the representative sample should be as identical as possible to the process of the full-size ones. The fact that the t
44、est has been made on representative samples and not on the full-size samples has to be indicated and reported in the test report item g), see Clause 11. If the PV module is provided with means for grounding then they constitute a part of the test sample. The test results relate only to the sample st
45、ructure as tested. If a module manufacturer uses several sources for PV module components, additional test samples are required. Samples shall be chosen in such way, that each encapsulation material used and any component forming an outer surface of the module used in the product range is represente
46、d. 62716 IEC:2013 7 Preconditioning 3 modules Ammonia resistance test following ISO 6988 with ammonia instead of sulphur dioxide 10.2 Maximum power determination MST 16 Dielectric withstand test MST 01 Visual inspection 10.15 Wet leakage current test MST 13 Ground continuity test MST 01 Visual inspe
47、ction Bypass diode functionality test C o n t r o l 10.2 Maximum power determination 2 modules MST 16 Dielectric withstand test 10.15 Wet leakage current test MST 13 Ground continuity test Cleaning and recovery 1 module IEC 1507/13 NOTE 1 Preconditioning and tests 10.2 and 10.15 are taken from IEC 6
48、1215:2005. Tests MST 01, MST 13 and MST 16 are taken from IEC 61730-2:2004. NOTE 2 The control module should be used as a check every time the test modules are measured to evaluate the effect of the salt mist test. Figure 1 Ammonia resistance test sequence for crystalline PV modules 8 62716 IEC:2013
49、 3 modules Ammonia resistance test following ISO 6988 with ammonia instead of sulphur dioxide MST 16 MST 01 10.15 MST 13 MST 01 Visual inspection Bypass diode functionality test 1 module C o n t r o l 10.2 Maximum power determination 2 modules MST 16 Dielectric withstand test 10.15 Wet leakage current test MST 13 Ground continuity test 10.19 Light soaking 10.6 Performance at STC (not NOCT) Cleaning and recovery Visual
