IEC62446-2009并网光伏发电系统-系统文件、投运测试和检查的最低要求

IEC 62446 Edition 1.0 2009-05 INTERNATIONAL STANDARD NORME INTERNATIONALE Grid connected photovoltaic systems – Minimum requirements for system documentation, commissioning tests and inspection Systèmes photovoltaïques connectés au réseau électrique – Exigences minimales pour la documentation du système, les essais de mise en service et l’examen INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE T ICS 27.160 PRICE CODE CODE PRIX ISBN 978-2-88910-712-4 ® Registered trademark of the International Electrotechnical Commission Marque déposée de la Commission Electrotechnique Internationale ® This is a preview - click here to buy the full publication – 2 – 62446 © IEC:2009 CONTENTS FOREWORD.4 INTRODUCTION.6 1 Scope and object7 2 Normative references .7 3 Terms and definitions .7 4 System documentation requirements 8 4.1 General .8 4.2 System data 8 4.2.1 Basic system information.8 4.2.2 System designer information .8 4.2.3 System installer information.9 4.3 Wiring diagram 9 4.3.1 General .9 4.3.2 Array - general specifications 9 4.3.3 PV string information .9 4.3.4 Array electrical details .9 4.3.5 Earthing and overvoltage protection 9 4.3.6 AC system.10 4.4 Datasheets10 4.5 Mechanical design information 10 4.6 Operation and maintenance information 10 4.7 Test results and commissioning data.10 5 Verification .10 5.1 General .10 5.2 General .11 5.3 Inspection .11 5.3.1 General .11 5.3.2 DC system inspection 11 5.3.3 Protection against overvoltage / electric shock 12 5.3.4 AC system.12 5.3.5 Labelling and identification 12 5.4 Testing13 5.4.1 General .13 5.4.2 Continuity of protective earthing and/or equipotential bonding conductors.13 5.4.3 Polarity test .13 5.4.4 PV string - open circuit voltage measurement13 5.4.5 PV string - current measurement .14 5.4.6 Functional tests .15 5.4.7 PV array Insulation resistance test 15 5.5 Verification reports 17 5.5.1 General .17 5.5.2 Initial verification .17 5.5.3 Periodic verification .17 Annex A (informative) Model verification certificate18 Annex B (informative) Model inspection report .19 This is a preview - click here to buy the full publication 62446 © IEC:2009 – 3 – Annex C (informative) Model PV array test report 21 Annex D (informative) PV array infrared camera inspection procedure.23 Table 1 – Minimum values of insulation resistance17 This is a preview - click here to buy the full publication – 4 – 62446 © IEC:2009 INTERNATIONAL ELECTROTECHNICAL COMMISSION ____________ GRID CONNECTED PHOTOVOLTAIC SYSTEMS – MINIMUM REQUIREMENTS FOR SYSTEM DOCUMENTATION, COMMISSIONING TESTS AND INSPECTION 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 standardization 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 entrusted 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 International 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 since 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 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 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 provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with an IEC Publication. 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 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 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 the 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 62446 has been prepared by IEC technical committee 82: Solar photovoltaic energy systems. The text of this standard is based on the following documents: FDIS Report on voting 82/558A/FDIS 82/564/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. This is a preview - click here to buy the full publication 62446 © IEC:2009 – 5 – The committee has decided that the contents of this publication will remain unchanged until the maintenance result 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, • replaced by a revised edition, or • amended. This is a preview - click here to buy the full publication – 6 – 62446 © IEC:2009 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, particularly for systems mounted on buildings. Only by the provision of adequate documentation at the outset can the long term performance and safety of the PV system and works, on or adjacent to the PV system, be ensured. This standard is split into 2 parts: • System documentation requirements (Clause 4) – This clause details the information that shall be provided, as a minimum, within the documentation provided to the customer following the installation of a grid connected PV system. • Verification (Clause 5) – This clause provides the information expected to be provided following initial (or periodic) verification of an installed system. It includes requirements for inspection and testing. This is a preview - click here to buy the full publication 62446 © IEC:2009 – 7 – GRID CONNECTED PHOTOVOLTAIC SYSTEMS – MINIMUM REQUIREMENTS FOR SYSTEM DOCUMENTATION, COMMISSIONING TESTS AND INSPECTION 1 Scope and object This International Standard defines the minimal information and documentation required to be handed over to a customer following the installation of a grid connected PV system. This standard also describes the minimum commissioning tests, inspection criteria and documentation expected to verify the safe installation and correct operation of the system. The document can also be used for periodic retesting. This standard is written for grid connected PV systems only and not for AC module systems or systems that utilize energy storage (e.g. batteries) or hybrid systems. NOTE It is expected that additional information and commissioning tests will be required in some circumstances, e.g. for large commercial installations. This standard is for use by system designers and installers of grid connected solar PV systems as a template to provide effective documentation to a customer. By detailing the expected minimum commissioning tests and inspection criteria, it is also intended to assist in the verification / inspection of a grid connected PV system after installation and for subsequent re-inspection, maintenance or modifications. 2 Normative references The following referenced documents are indispensable for the application of this standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60364 (all parts), Low-voltage electrical installations IEC 60364-6, Low-voltage electrical installations – Part 6: Verification IEC 60364-7-712:2002, Electrical installations of buildings – Part 7-712: Requirements for special installations or locations – Solar photovoltaic (PV) power supply systems IEC/TR 60755:2008, General requirements for residual current operated protective devices IEC 61557 (all parts), Electrical safety in low voltage distribution systems up to 1000 V AC and 1500 V DC – Equipment for testing, measuring or monitoring of protective measures IEC 61730-1, Photovoltaic (PV) module safety qualification – Part 1: Requirements for construction 3 Terms and definitions For the purposes of this document, the following terms and definitions apply: 3.1 verification all measures by means of which compliance of the electrical installation to the relevant standards is checked This is a preview - click here to buy the full publication – 26 – 62446 © CEI:2009 SOMMAIRE AVANT-PROPOS28 INTRODUCTION.30 1 Domaine d application et objet31 2 Références normatives.31 3 Termes et définitions 32 4 Exigences relative à la documentation du système .32 4.1 Généralités32 4.2 Données système32 4.2.1 Informations système de base .32 4.2.2 Informations du concepteur système .33 4.2.3 Informations pour l’installateur système.33 4.3 Schéma de câblage.33 4.3.1 Généralités33 4.3.2 Panneau - spécifications générales .33 4.3.3 Informations sur les chaînes PV 33 4.3.4 Détails électriques du panneau33 4.3.5 Mise à la terre et protection contre les surtensions 34 4.3.6 Réseau à courant alternatif34 4.4 Fiches techniques .34 4.5 Informations sur la conception mécanique.34 4.6 Informations sur le fonctionnement et la maintenance .34 4.7 Résultats d’essai et données de mise en service.35 5 Vérification .35 5.1 Généralités35 5.2 Généralités35 5.3 Examen.35 5.3.1 Généralités35 5.3.2 Examen du réseau à courant continu.35 5.3.3 Protection contre les surtensions / chocs électriques.36 5.3.4 Réseau à courant alternatif37 5.3.5 Etiquetage et identification 37 5.4 Essais .37 5.4.1 Généralités37 5.4.2 Continuité des conducteurs de mise à la terre de protection et/ou de liaison équipotentielle38 5.4.3 Essai de polarité38 5.4.4 Chaîne PV – mesure de la tension en circuit ouvert.38 5.4.5 Chaîne PV – mesure du courant 39 5.4.6 Essais de fonctionnement40 5.4.7 Essai de résistance d’isolement des panneaux PV 40 5.5 Rapports de vérification.42 5.5.1 Généralités42 5.5.2 Vérification initiale .42 5.5.3 Vérification périodique.43 Annexe A (informative) Certificat de vérification modèle 44 Annexe B (informative) Rapport d examen modèle.45 This is a preview - click here to buy the full publication 62446 © CEI:2009 – 27 – Annexe C (informative) Rapport d essai du panneau PV modèle47 Annexe D (informative) Méthode d’examen du panneau PV par caméra infrarouge49 Tableau 1 – Valeurs minimales de résistance d’isolement.42 This is a preview - click here to buy the full publication – 28 – 62446 © CEI:2009 COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE ____________ SYSTÈMES PHOTOVOLTAÏQUES CONNECTÉS AU RÉSEAU ÉLECTRIQUE – EXIGENCES MINIMALES POUR LA DOCUMENTATION DU SYSTÈME, LES ESSAIS DE MISE EN SERVICE ET L’EXAMEN AVANT-PROPOS 1) La Commission Electrotechnique Internationale (CEI) est une organisation mondiale de normalisation composée de l ensemble des comités électrotechniques nationaux (Comités nationaux de la CEI). La CEI a pour objet de favoriser la coopération internationale pour toutes les questions de normalisation dans les domaines de l électricité et de l électronique. A cet effet, la CEI – entre autres activités – publie des Normes internationales, des Spécifications techniques, des Rapports techniques, des Spécifications accessibles au public (PAS) et des Guides (ci-après dénommés “Publication(s) de la CEI“). Leur élaboration est confiée à des comités d études, aux travaux desquels tout Comité national intéressé par le sujet traité peut participer. Les organisations internationales, gouvernementales et non gouvernementales, en liaison avec la CEI, participent également aux travaux. 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