EN 62446-1-2016 en Photovoltaic (PV) systems - Requirements for testing documentation and maintenance - Part 1 Grid connected systems - Documentation commissioning tests and inspec.pdf

1、BSI Standards PublicationPhotovoltaic (PV) systems Requirements for testing, documentation and maintenancePart 1: Grid connected systems Documentation, commissioning tests and inspectionBS EN 62446-1:2016National forewordThis British Standard is the UK implementation of EN 62446-1:2016. It isidentic

2、al to IEC 62446-1:2016. It supersedes BS EN 62446:2009 which iswithdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee GEL/82, Photovoltaic Energy Systems.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication d

3、oes not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 81578 2ICS 27.160Compliance with a British Standard cannot confer immunity fromlegal o

4、bligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 April 2016.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 62446-1:2016EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 62446-1 April 2016

5、ICS 27.160 Supersedes EN 62446:2009 English Version Photovoltaic (PV) systems - Requirements for testing, documentation and maintenance - Part 1: Grid connected systems - Documentation, commissioning tests and inspection (IEC 62446-1:2016) Systmes photovoltaques (PV) - Exigences pour les essais, la

6、documentation et la maintenance - Partie 1: Systmes connects au rseau lectrique - Documentation, essais de mise en service et examen (IEC 62446-1:2016) Photovoltaik (PV) Systeme - Anforderungen an Prfung, Dokumentation und Instandhaltung - Teil 1: Netzgekoppelte Systeme - Dokumentation, Inbetriebnah

7、meprfung und Prfanforderungen (IEC 62446-1:2016) This European Standard was approved by CENELEC on 2016-02-23. 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

8、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 lang

9、uage 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

10、 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 Unite

11、d Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr 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 re

12、served worldwide for CENELEC Members. Ref. No. EN 62446-1:2016 E BS EN 62446-1:2016EN 62446-1:2016 2 European foreword The text of document 82/1036/FDIS, future edition 1 of IEC 62446-1, prepared by IEC/TC 82 “Solar photovoltaic energy systems“ was submitted to the IEC-CENELEC parallel vote and appr

13、oved by CENELEC as EN 62446-1:2016. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2016-11-23 latest date by which the national standards conflicting with the document h

14、ave to be withdrawn (dow) 2019-02-23 This document supersedes EN 62446:2009. 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. Endorseme

15、nt notice The text of the International Standard IEC 62446-1:2016 was approved by CENELEC as a European Standard without any modification. BS EN 62446-1:2016EN 62446-1:2016 3 Annex ZA (normative) Normative references to international publications with their corresponding European publications The fo

16、llowing 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) applies. NOTE 1 When a

17、n International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here: www.cenelec.eu. Publication Year Title EN/HD Year IEC 60364-6

18、- Low voltage electrical installations - Part 6: Verification HD 60364-6 - IEC 61010 series Safety requirements for electrical equipment for measurement, control and laboratory use EN 61010 series IEC 61557 series Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d

19、.c. - Equipment for testing, measuring or monitoring of protective measures EN 61557 series IEC 61730 series Photovoltaic (PV) module safety qualification EN 61730 series IEC/TS 62548 2013 Photovoltaic (PV) arrays - Design requirements - - BS EN 62446-1:2016 2 IEC 62446-1:2016 IEC 2016 CONTENTS FORE

20、WORD . 5 INTRODUCTION . 7 1 Scope 8 2 Normative references 8 3 Terms and definitions 8 4 System documentation requirements . 10 4.1 General . 10 4.2 System data 10 4.2.1 Basic system information . 10 4.2.2 System designer information 11 4.2.3 System installer information . 11 4.3 Wiring diagram 11 4

21、.3.1 General . 11 4.3.2 Array General specifications . 11 4.3.3 PV string information . 11 4.3.4 Array electrical details . 12 4.3.5 AC system . 12 4.3.6 Earthing and overvoltage protection. 12 4.4 String layout . 12 4.5 Datasheets . 12 4.6 Mechanical design information 12 4.7 Emergency systems 12 4

22、.8 Operation and maintenance information 13 4.9 Test results and commissioning data 13 5 Verification 13 5.1 General . 13 5.2 Inspection . 14 5.2.1 General . 14 5.2.2 DC system General . 14 5.2.3 DC system Protection against electric shock . 14 5.2.4 DC system Protection against the effects of insul

23、ation faults 14 5.2.5 DC system Protection against overcurrent 15 5.2.6 DC system Earthing and bonding arrangements . 15 5.2.7 DC system Protection against the effects of lightning and overvoltage 15 5.2.8 DC system Selection and erection of electrical equipment 15 5.2.9 AC system . 16 5.2.10 Labell

24、ing and identification 16 5.3 Testing . 16 5.3.1 General . 16 5.3.2 Test regimes and additional tests 17 5.3.3 Test regimes for systems with module level electronics . 17 5.3.4 Category 1 test regime All systems . 18 5.3.5 Category 2 test regime 18 5.3.6 Additional tests 19 6 Test procedures Categor

25、y 1 19 6.1 Continuity of protective earthing and equipotential bonding conductors . 19 BS EN 62446-1:2016IEC 62446-1:2016 IEC 2016 3 6.2 Polarity test 19 6.3 PV string combiner box test 20 6.4 PV string Open circuit voltage measurement 20 6.5 PV string Current measurement . 21 6.5.1 General . 21 6.5

26、.2 PV string Short circuit test 21 6.5.3 PV string Operational test . 22 6.6 Functional tests 22 6.7 PV array insulation resistance test 22 6.7.1 General . 22 6.7.2 PV array insulation resistance test Test method 23 6.7.3 PV array insulation resistance Test procedure 23 7 Test procedures Category 2

27、25 7.1 General . 25 7.2 String I-V curve measurement . 25 7.2.1 General . 25 7.2.2 I-V curve measurement of Vocand Isc. 25 7.2.3 I-V curve measurement Array performance . 25 7.2.4 I-V curve measurement Identification of module / array defects or shading issues . 26 7.3 PV array infrared camera inspe

28、ction procedure . 27 7.3.1 General . 27 7.3.2 IR test procedure . 27 7.3.3 Interpreting IR test results . 27 8 Test procedures Additional tests . 28 8.1 Voltage to ground Resistive ground systems 28 8.2 Blocking diode test 28 8.3 PV array Wet insulation resistance test 29 8.3.1 General . 29 8.3.2 We

29、t insulation test procedure 29 8.4 Shade evaluation 29 9 Verification reports 30 9.1 General . 30 9.2 Initial verification . 31 9.3 Periodic verification 31 Annex A (informative) Model verification certificate 32 Annex B (informative) Model inspection report . 33 Annex C (informative) Model PV array

30、 test report 36 Annex D (informative) Interpreting I-V curve shapes 37 D.1 General . 37 D.2 Variation 1 Steps or notches in curve . 38 D.3 Variation 2 Low current 38 D.4 Variation 3 Low voltage 38 D.5 Variation 4 Rounder knee . 39 D.6 Variation 5 Shallower slope in vertical leg 39 D.7 Variation 6 St

31、eeper slope in horizontal leg . 40 Figure 1 Example sun-path diagram . 30 BS EN 62446-1:2016 4 IEC 62446-1:2016 IEC 2016 Figure D.1 I-V curve shapes. 37 Table 1 Modifications to the test regime for systems with module level electronics . 17 Table 2 Minimum values of insulation resistance PV arrays u

32、p to 10 kWp . 24 BS EN 62446-1:2016IEC 62446-1:2016 IEC 2016 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ PHOTOVOLTAIC (PV) SYSTEMS REQUIREMENTS FOR TESTING, DOCUMENTATION AND MAINTENANCE Part 1: Grid connected systems Documentation, commissioning tests and inspection FOREWORD 1) The International

33、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 fie

34、lds. 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 IE

35、C 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 Standardizat

36、ion (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 represent

37、ation 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 can

38、not 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 publicatio

39、ns. 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, ac

40、cess 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 in

41、dividual 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 upo

42、n, 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

43、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 62446-1 has been prepared by IEC technical committee 82: Solar photovoltaic energy systems. This first edition cancels and replaces

44、 IEC 62446 published in 2009. This edition constitutes a technical revision. This edition includes the following significant technical change with respect to IEC 62446:2009: the scope has been expanded to include a wider range of system test and inspection regimes to encompass larger and more comple

45、x PV systems. BS EN 62446-1:2016 6 IEC 62446-1:2016 IEC 2016 The text of this standard is based on the following documents: FDIS Report on voting 82/1036/FDIS 82/1056A/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above tab

46、le. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts in the IEC 62446 series, published under the general title Photovoltaic (PV) systems Requirements for testing, documentation and maintenance, can be found on the IEC website. The committee ha

47、s 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 a

48、mended. 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. BS EN 62446-1:2016IEC 62446-1:2016 IEC

49、 2016 7 INTRODUCTION Grid connected PV systems are expected to have a lifetime of decades, with maintenance or modifications likely at some point over this period. Building or electrical works in the vicinity of the PV array are very likely, for example roof works adjacent to the array or modifications (structural or electrical) to a home that has a PV system. The ownership of a system may also change over time, particul