iTeh StandardsiTeh Standards
EURUSD
Your shopping cart is empty.
IEC

IEC 63112:2021

(Main)

Photovoltaic (PV) arrays - Earth fault protection equipment - Safety and safety-related functionality

Photovoltaic (PV) arrays - Earth fault protection equipment - Safety and safety-related functionality

IEC 63112:2021 is applicable to low voltage Photovoltaic Earth-Fault Protection Equipment (PV-EFPE) whose function is to detect, interrupt, and warn system operators of earth faults in solar photovoltaic arrays. This document specifies:
- the types and levels of the monitoring and protection functions that may be provided;
- the nature and timing of responses to earth faults;
- test methods for validating the monitoring and protection functions provided;
- requirements for functional safety and fault tolerance;
- requirements for product safety including construction, environmental suitability, markings, documentation, and testing.

Groupes photovoltaïques (PV) - Matériel de protection contre les défauts à la terre - Sécurité et fonctionnalités relatives à la sécurité

IEC 63112:2021 s'applique aux matériels de protection contre les défauts à la terre photovoltaïques (PV-EFPE) dont la fonction est de détecter, d'interrompre et de mettre en garde les opérateurs de réseau en cas de défauts à la terre dans les groupes photovoltaïques. Le présent document spécifie:
- les types et les niveaux des fonctions de surveillance et de protection qui peuvent être fournies;
- la nature et la chronologie des réponses aux défauts à la terre;
- les méthodes d'essai pour la validation des fonctions de surveillance et de protection fournies;
- les exigences en matière de sécurité fonctionnelle et de tolérance aux pannes;
- les exigences relatives à la sécurité du produit, y compris la construction, l'adaptation à l'environnement, les marquages, la documentation et les essais

General Information

Status
Published
Publication Date
21-Jun-2021
ICS
27.160 - Solar energy engineering
Technical Committee
TC 82 - Solar photovoltaic energy systems
Drafting Committee
WG 6 - TC 82/WG 6
Current Stage
PPUB - Publication issued
Start Date
18-Jun-2021
Completion Date
22-Jun-2021
Ref Project

Buy Standard

IEC 63112:2021 - Photovoltaic (PV) arrays - Earth fault protection equipment - Safety and safety-related functionalityIEC 63112:2021 - Photovoltaic (PV) arrays - Earth fault protection equipment - Safety and safety-related functionality
PreviousNext
Standard
IEC 63112:2021 - Photovoltaic (PV) arrays - Earth fault protection equipment - Safety and safety-related functionality
English and French language
154 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (Sample)


IEC 63112 ®
Edition 1.0 2021-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Photovoltaic (PV) arrays – Earth fault protection equipment – Safety and safety-
related functionality
Groupes photovoltaïques (PV) – Matériel de protection contre les défauts à la
terre – Sécurité et fonctionnalités relatives à la sécurité

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 IEC's member National 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 réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
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 content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform IEC online collection - oc.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always
committee, …). It also gives information on projects, replaced have access to up to date content tailored to your needs.
and withdrawn publications.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 000 terminological entries in English
details all new publications released. Available online and
and French, with equivalent terms in 18 additional languages.
once a month by email.
Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Customer 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: sales@iec.ch.
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.

Recherche de publications IEC - IEC online collection - oc.iec.ch
webstore.iec.ch/advsearchform Découvrez notre puissant moteur de recherche et consultez
La recherche avancée permet de trouver des publications IEC gratuitement tous les aperçus des publications. Avec un
en utilisant différents critères (numéro de référence, texte, abonnement, vous aurez toujours accès à un contenu à jour
comité d’études, …). Elle donne aussi des informations sur adapté à vos besoins.
les projets et les publications remplacées ou retirées.

Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
Le premier dictionnaire d'électrotechnologie en ligne au
Restez informé sur les nouvelles publications IEC. Just
monde, avec plus de 22 000 articles terminologiques en
Published détaille les nouvelles publications parues.
anglais et en français, ainsi que les termes équivalents dans
Disponible en ligne et une fois par mois par email.
16 langues additionnelles. Egalement appelé Vocabulaire

Electrotechnique International (IEV) en ligne.
Service Clients - webstore.iec.ch/csc

Si vous désirez nous donner des commentaires sur cette
publication ou si vous avez des questions contactez-nous:
sales@iec.ch.
IEC 63112 ®
Edition 1.0 2021-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Photovoltaic (PV) arrays – Earth fault protection equipment – Safety and safety-

related functionality
Groupes photovoltaïques (PV) – Matériel de protection contre les défauts à la

terre – Sécurité et fonctionnalités relatives à la sécurité

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 27.160 ISBN 978-2-8322-9872-5

– 2 – IEC 63112:2021 © IEC 2021
CONTENTS
FOREWORD . 6
INTRODUCTION . 8
1 Scope . 9
2 Normative references . 9
3 Terms, definitions, symbols and abbreviated terms . 10
4 Requirements relating PV-EFP to system topology . 12
4.1 General . 12
4.2 PV-EFP functions for different system topologies . 16
4.3 PV-EFPE control over host system operation . 18
4.3.1 General . 18
4.3.2 Types of PV-EFPE requiring host system control . 18
4.3.3 Methods of control of the host system operation . 18
4.4 Disconnection under fault conditions . 19
4.4.1 General . 19
4.4.2 Disconnecting means . 19
4.4.3 High impedance connections . 19
4.4.4 Indirect disconnection . 19
4.5 Systems with more than one sub-array (informative) . 20
4.5.1 General . 20
4.5.2 Isolated sub-arrays . 20
4.5.3 Non-isolated sub-arrays . 20
5 PV array to earth insulation monitoring . 20
5.1 General . 20
5.2 Array insulation monitoring requirements . 21
5.3 Array insulation fault response requirements. 21
5.4 Provisions for reset . 22
5.5 Insulation monitoring function adjustability . 22
6 PV array residual or earth current monitoring. 22
6.1 General . 22
6.2 Required PV-EFP current monitoring functions . 22
6.3 Shock hazard current monitoring . 23
6.3.1 General . 23
6.3.2 Limits and response. 23
6.3.3 Provisions for reset . 23
6.3.4 Shock hazard current monitoring – adjustability . 24
6.3.5 Fault tolerance of shock hazard current monitoring . 24
6.4 Fire hazard (continuous) current monitoring by electronic means . 24
6.4.1 Overview . 24
6.4.2 General . 24
6.4.3 Settings and response . 24
6.4.4 Provisions for reset . 25
6.4.5 Fire hazard current monitoring function adjustability . 25
6.4.6 Fault tolerance of fire hazard current monitoring by electronic means . 25
6.5 Fire hazard current monitoring by an overcurrent protective device in the
functional earthing conductor . 25
6.5.1 Overview . 25

6.5.2 General . 25
6.5.3 Ratings . 26
6.5.4 Response . 26
6.5.5 Provisions for reset . 26
6.5.6 Overcurrent protective device adjustability and replacement . 26
7 Construction . 27
7.1 General . 27
7.2 Environmental considerations . 27
8 PV-EFP Fault Indication . 28
8.1 General . 28
8.2 Integral fault indication . 28
8.3 Remote fault indication . 28
8.3.1 General . 28
8.3.2 Observability . 28
8.3.3 Remote fault indication means . 28
8.4 Resetting of the fault indication . 28
9 Testing . 29
9.1 General requirements for the tests in 9.2 through 9.5 . 29
9.1.1 Tests required . 29
9.1.2 DC sources . 29
9.1.3 AC sources . 30
9.1.4 Laboratory conditions . 30
9.1.5 Monitoring the PV-EFPE means of control of the host system . 30
9.1.6 Control of the PV-EFPE state . 30
9.1.7 Test setup . 31
9.2 Tests for PV array insulation monitoring functions . 32
9.2.1 Setup . 32
9.2.2 Sequence of tests . 33
9.2.3 Test for R above settin
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

This May Also Interest You

IEC
IEC TS 62788-2:2024(Main)
Measurement procedures for materials used in photovoltaic modules - Part 2: Polymeric materials - Frontsheets and backsheets

IEC TS 62788-2:2024 defines test methods and datasheet reporting requirements for safety and performance-related properties (mechanical, electrical, thermal, optical, chemical) of non‑rigid polymeric materials intended for use in terrestrial photovoltaic modules as polymeric front- and backsheets. The test methods in this document define how to characterize front- and backsheet materials and their components in a manner representative of how they will be used in the module, which eventually includes combination with other matched components such as encapsulants or adhesives. Results of testing described in this document are called by IEC 62788-2-1 for safety qualification of polymeric front- and backsheets on component level and support the safety and performance-related tests defined on the PV module level as defined in the series IEC 61730 (for safety) and IEC 61215 (for performance). This document also defines test methods for assessing inherent material characteristics of polymeric front- and backsheets or their components, which can be required in datasheet reporting or can be useful in the context of product development or design of PV modules.
This second edition cancels and replaces the first edition published in 2017. This edition includes the following significant technical changes with respect to the previous edition:
a) With revision of IEC 61730-1 the requirements for the polymeric front- and backsheet have been moved from IEC 61730-1 into IEC 62788-2-1. This is reflected accordingly.
b) The tensile testing method has been refined based on findings of round robin tests, including updated drawings.
c) A thermal pre-exposure method has been introduced to be equivalent to the thermal effects of a "lamination" cycle. This pre-exposure defines the "fresh" state of the front- or backsheet in final application for evaluation of changes in ageing tests. For practical reasons, an oven exposure has been defined as an equivalent test.
d) The multiple functions of the lamination protrusion test (previously DTI test) have been clarified, to identify and measure RUI layer thickness as well as to identify layers for which the comparative tracking index (CTI) needs to be determined. Also the content of IEC 62788-2-1 has been updated, by which the lamination protrusion test and MST 04 are additionally set in perspective to each other via engineering judgement.
e) The DC breakdown voltage test method has been updated and the option to perform a withstand voltage test has been added (to reduce the required measurement voltage). The correction of DC breakdown voltage ( ) measurements, needed in the presence of non‑RUI layers and after the lamination protrusion test, has been defined more precisely.
f) Details for thickness measurement have been added (engineered surface roughness due to embossing).
g) The adhesion test methods have been reviewed and updated. The single cantilevered beam test has been added. Figures have been updated to align with IEC 62788-1-1.
h) The thermal failsafe test has been added as a test method based on discussion in the parallel project for IEC 62788-2-1. The test method offers a single temperature-point evaluation to include elongation at break to the thermal endurance evaluation.
I) A sequential UV/TC test ("solder bump test") has been added.

  • Technical specification
    94 pages
    English language
    sale 15% off
IEC
IEC TS 62788-8-1:2024(Main)
Measurement procedures for materials used in photovoltaic modules - Part 8-1: Electrically conductive adhesive (ECA) - Measurement of material properties

IEC TS 62788-8-1:2024 defines test methods and datasheet reporting requirements for key characteristics of ECA used in photovoltaic modules, involving mechanical characteristics, adhesive characteristics, electrical characteristics, thermal characteristics, etc.
The object of this document is to offer a standard test procedure to ECA manufacturers for product design, production and quality control, and to PV module manufacturers for the purpose of material screening, material inspection, process control, and failure analysis.
This document is intended to be applied to ECA used in solar PV modules. For non-conductive adhesives or tapes used in PV modules, the applicable test methods except for electrical characteristics in this document may be used.

  • Technical specification
    51 pages
    English language
    sale 15% off
IEC
IEC 62548-1:2023(Main)
Photovoltaic (PV) arrays - Part 1: Design requirements

IEC 62548-1:2023 sets out design requirements for photovoltaic (PV) arrays including DC array wiring, electrical protection devices, switching and earthing provisions. The scope includes all parts of the PV array and final power conversion equipment (PCE), but not including energy storage devices, loads or AC or DC distribution network supplying loads. The object of this document is to address the design safety requirements arising from the particular characteristics of photovoltaic systems. This document also includes extra protection requirements of PV arrays when they are directly connected with batteries at the DC level.
This first edition cancels and replaces IEC 62548 published in 2016. This edition includes the following significant technical changes with respect to the previous edition:
a) Revised provisions for systems including DC to DC conditioning units.
b) Revision of mounting structure requirements.
c) Revised cable requirements.
d) Revision of Clause 6 on safety issues which includes provisions for protection against electric shock including array insulation monitoring and earth fault detection.
e) Revision of 7.2.7 and 7.3 with respect to isolation means.
f) Provisions for use of bifacial modules and modules mounted in non-optimal orientations.
g) New Annex F containing: KI factor calculations for bifacial and non-optimally oriented systems; anti-PID equipment and arc flash.

  • Standard
    104 pages
    English language
    sale 15% off
IEC
IEC TS 62915:2023(Main)
Photovoltaic (PV) modules - Type approval, design and safety qualification - Retesting

IEC TS 62915:2023 sets forth a uniform approach to maintain type approval, design and safety qualification of terrestrial PV modules that have undergone or will undergo modification from their originally assessed design. This document addresses two types of PV module technologies, wafer-based technologies (WBT) and monolithically-integrated (MLI) thin-film based technologies.
This document lists typical modifications and the resulting requirements for retesting based on the different test standards. It provides assistance; at some level, engineering judgement may be needed.
This publication contains attached files in the form of xls document. These files are intended to be used as a complement and do not form an integral part of the publication.
This second edition cancels and replaces the first edition published in 2018. This edition includes the following significant technical changes with respect to the previous edition:
- Prior references to specific process-related changes to PV modules have been removed in this edition and replaced with a general requirement to ensure that a consistent quality management system is in place per IEC 62941
- References to IEC 61215 and IEC 61730 have been updated to the latest editions (2021 and 2023 respectively)
- Retest requirements with respect to new added tests such as cyclic (dynamic) mechanical load (MQT 20) and potential-induced degradation (MQT 21) are addressed in this edition
- Retest requirements for IEC 61215 and IEC 61730 have been separated for the sake of clarity
- A comprehensive matrix table summarizing all the retest requirements for each possible change in material(s) or design modification is provided in this edition
- References to component level standards, namely IEC 62788-1 series and IEC 62788-2 series, are included in this edition to address changes that could be made to the critical sub-components going into new PV module constructions
- Crystalline silicon and thin film references have been updated to be consistent with nomenclature in the updated IEC 61215 and IEC 61730 standards; namely, wafer-based technology (WBT) and monolithically integrated (MLI) thin film PV modules
- In this edition, 4.3 which addresses retest requirements for MLI thin film PV modules has been truncated and simplified by removing redundant sections that are identical with the subclauses in 4.2
Guidance for retesting modules according to IEC TS 63126, “Guidelines for qualifying PV modules, components and materials for operation at high temperatures” has been added to this edition.
- In this edition, requirements have been added for changes affecting system compatibility with variants of the same model

  • Technical specification
    43 pages
    English language
    sale 15% off
IEC
IEC 61730-1:2023(Main)
Photovoltaic (PV) module safety qualification - Part 1: Requirements for construction

IEC 61730-1:2023 specifies and describes the fundamental construction requirements for photovoltaic (PV) modules in order to provide safe electrical and mechanical operation. Specific topics are provided to assess the prevention of electrical shock, fire hazards, and personal injury due to mechanical and environmental stresses. This document pertains to the particular requirements of construction. IEC 61730-2 defines the requirements for testing. Modules with modified construction are qualified as described in IEC TS 62915.
This document lays down requirements for terrestrial PV modules suitable for long-term operation in open-air climates with 98th percentile module operating temperatures of 70 °C or less. Guidelines for modules to be used at higher operating temperatures are described in IEC TS 63126.
This document is intended to apply to all terrestrial flat plate module materials, such as crystalline silicon module types as well as thin-film modules.
This document defines the basic requirements for various applications of PV modules, but it cannot be considered to encompass all national or regional codes.

  • Standard
    143 pages
    English and French language
    sale 15% off
IEC
IEC 61730-2:2023(Main)
Photovoltaic (PV) module safety qualification - Part 2: Requirements for testing

IEC 61730-2:2023 is available as IEC 61730-2:2023 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61730-2:2023 lists the tests a PV module is required to fulfil for safety qualification. This document applies for safety qualification only in conjunction with IEC 61730-1. The objective of this document is to provide the testing sequence intended to verify the safety of PV modules whose construction has been assessed by IEC 61730-1. The test sequence and pass criteria are designed to detect the potential breakdown of internal and external components of PV modules that would result in fire, electric shock, and/or personal injury. This document defines the basic safety test requirements and additional tests that are a function of the PV module end-use applications. The additional testing requirements outlined in relevant ISO documents, or the national or local codes which govern the installation and use of these PV modules in their intended locations, are considered in addition to the requirements contained within this document.

  • Standard
    209 pages
    English language
    sale 15% off
  • Standard
    134 pages
    English and French language
    sale 15% off
IEC
IEC 62788-2-1:2023(Main)
Measurement procedures for materials used in photovoltaic modules - Part 2-1: Polymeric materials - Frontsheet and backsheet - Safety requirements

IEC 62788-2-1:2023 specifies the safety requirements for flexible polymeric front- and backsheet constructions, which are intended for use as relied-upon insulation in photovoltaic (PV) modules. The specifications in this document define the specific requirements of polymeric front- or backsheet constructions on the component level and cover mechanical, electrical, visual and thermal characterization in an unexposed state and/or after ageing.
This document covers class II and class 0 modules, as defined in IEC 61730-1. Class III modules are out of scope. This document provides the requirements for qualification of front- and backsheets to be used in module safety qualification according to IEC 61730-1. Test method descriptions are provided in IEC TS 62788-2, along with additional characterization methods useful for performance or quality assurance.

  • Standard
    65 pages
    English and French language
    sale 15% off
IEC
IEC TS 63397:2022/COR1:2023(Corrigendum)
Corrigendum 1 - Photovoltaic (PV) modules - Qualifying guidelines for increased hail resistance
  • Technical specification
    2 pages
    English language
    sale 15% off
IEC
IEC 60904-2:2023(Main)
Photovoltaic devices - Part 2: Requirements for photovoltaic reference devices

IEC 60904-2:2023 gives requirements for the classification, selection, packaging, marking, calibration and care of photovoltaic reference devices. This document applies to photovoltaic (PV) reference devices that are used to measure the irradiance of natural or simulated sunlight for the purpose of quantifying the electrical performance of photovoltaic devices (cells, modules and arrays). It does not cover photovoltaic reference devices for use under concentrated sunlight. This fourth edition cancels and replaces the third edition published in 2015. This edition includes the following significant technical changes with respect to the previous edition:
a) added calibration procedures for calibrating PV devices at maximum power by extending the respective Clauses 12 and 13;
b) revised requirements for mandatory measurement of spectral responsivity, temperature coefficients and linearity, depending on usage and allowing some measurements on equivalent devices;
c) revised requirements for built-in shunt resistor;
d) added requirements for traceability of calibration explicitly.

  • Standard
    62 pages
    English language
    sale 15% off
  • Standard
    38 pages
    English and French language
    sale 15% off
IEC
IEC 63027:2023(Main)
Photovoltaic power systems - DC arc detection and interruption

IEC 63027:2023 applies to equipment used for the detection and optionally the interruption of electric DC arcs in photovoltaic (PV) system circuits. The document covers test procedures for the detection of series arcs within PV circuits, and the response times of equipment employed to interrupt the arcs.
The document defines reference scenarios according to which the testing is conducted. This document covers equipment connected to systems not exceeding a maximum PV source circuit voltage of 1 500 V DC. This document provides requirements and testing procedures for arc-fault protection devices used in PV systems to reduce the risk of igniting an electrical fire.

  • Standard
    131 pages
    English and French language
    sale 15% off