SIST EN 61730-2:2008
Photovoltaic (PV) module safety qualification -- Part 2: Requirements for testing
Photovoltaic (PV) module safety qualification -- Part 2: Requirements for testing
This part of IEC 61730 describes the fundamental construction requirements for photovoltaic (PV) modules in order to provide safe electrical and mechanical operation during their expected lifetime. Specific topics are provided to assess the prevention of electrical shock, fire hazards, and personal injury due to mechanical and environmental stresses. This part of IEC 61730 pertains to the particular requirements of construction. IEC 61730-2 outlines the requirements of testing. This standard attempts to define the basic requirements for various application classes of PV modules, but it cannot be considered to encompass all national or regional building codes. The specific requirements for marine and vehicle applications are not covered. This standard is not applicable to modules with integrated AC inverters (AC modules). This standard is designed so that its test sequence can coordinate with those of IEC 61215 or IEC 61646, so that a single set of samples may be used to perform both the safety and performance evaluation of a photovoltaic module design. The object of this document is to provide basic guidance in certifying the fundamental construction of photovoltaic modules presented for safety approval by testing under IEC 61730-2. These requirements are intended to minimise the misapplication and misuse of modules or the breakdown of internal components which would result in fire, electric shock and personal injury. The standard defines the basic safety construction requirements and additional tests that are a function of the module end-use applications. Component requirements are intended to provide evidence of performance of that component appropriate to its application in the module construction and environment.
Photovoltaik (PV) -Module - Sicherheitsqualifikation -- Teil 2: Anforderungen an die Prüfung
Qualification pour la sûreté de fonctionnement des modules photovoltaïques (PV) -- Partie 2: Exigences pour les essais
Décrit les exigences d'essai pour les modules photovoltaïques afin de fournir un fonctionnement électrique et mécanique sûr au cours de leur durée de vie. Couvre la prévention contre les chocs électriques, les risques de feu et les accidents corporels dus à des contraintes mécaniques et environnementales. Présente les exigences d'essais et sera utilisée conjointement avec la EN 61215 ou la EN 61646.
Varnostne zahteve fotonapetostnih (PV) modulov - 2. del: Zahteve za preskušanje (IEC 61730-2:2004)
Ta del standarda IEC 61730 opisuje temeljne konstrukcijske zahteve za fotonapetostne (PV) module, da se zagotovi njihovo varno električno in mehansko delovanje med pričakovano življenjsko dobo. Podane so specifične teme na področju ocene preprečevanja električnega udara, požarne ogroženosti in osebnih poškodb zaradi mehanskih in okoljskih obremenitev. Ta del standarda IEC 61730 se nanaša na posebne gradbene zahteve. Standard IEC 61730-2 podaja zahteve za preskušanje. Ta standard poskuša določiti osnovne zahteve za različne razrede uporabe fotonapetostnih modulov, vendar ne zajema vseh nacionalnih in regionalnih gradbenih predpisov. Specifične zahteve za uporabo na morju in v vozilih niso zajete. Ta standard se ne uporablja za module z vgrajenimi pretvorniki AC (moduli AC). Ta standard je oblikovan tako, da se lahko preskusno zaporedje uskladi z zaporedji iz standardov IEC 61215 ali IEC 61646, zato se lahko za vrednotenje varnosti in učinkovitosti projektiranja fotonapetostnih modulov uporabi ena sama skupina vzorcev. Cilj tega dokumenta je zagotoviti osnovne smernice za certificiranje temeljne konstrukcije fotonapetostnih modulov, namenjenih za potrditev varnosti s preskušanjem v skladu s standardom IEC 61730-2. Te zahteve so namenjene za zmanjšanje nepravilnega delovanja in uporabe modulov ali odpovedi notranjih sestavnih delov, ki bi povzročila požar, električni udar in osebne poškodbe. Standard določa osnovne varnostne gradbene zahteve in dodatne preskuse, ki so funkcija praktične uporabe modula. Zahteve glede sestavnih delov so namenjene za dokazovanje, da delovanje sestavnega dela ustreza njegovi uporabi v konstrukciji modula in okolju.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 61730-2:2008
01-januar-2008
Varnostne zahteve fotonapetostnih (PV) modulov - 2. del: Zahteve za preskušanje
(IEC 61730-2:2004)
Photovoltaic (PV) module safety qualification - Part 2: Requirements for testing
Photovoltaik (PV) - Module - Sicherheitsqualifikation - Teil 2: Anforderungen an die
Prüfung
Qualification pour la sureté de fonctionnement des modules photovoltaiques (PV) - Partie
2: Exigences pour les essais
Ta slovenski standard je istoveten z: EN 61730-2:2007
ICS:
27.160 6RQþQDHQHUJLMD Solar energy engineering
SIST EN 61730-2:2008 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
EUROPEAN STANDARD
EN 61730-2
NORME EUROPÉENNE
May 2007
EUROPÄISCHE NORM
ICS 27.160
English version
Photovoltaic (PV) module safety qualification –
Part 2: Requirements for testing
(IEC 61730-2:2004, modified)
Qualification pour la sûreté de Photovoltaik (PV) -Module –
fonctionnement des modules Sicherheitsqualifikation –
photovoltaïques (PV) – Teil 2: Anforderungen an die Prüfung
Partie 2: Exigences pour les essais (IEC 61730-2:2004, modifiziert)
(CEI 61730-2:2004, modifiée)
This European Standard was approved by CENELEC on 2006-12-01. 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 alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2007 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61730-2:2007 E
---------------------- Page: 2 ----------------------
EN 61730-2:2007 - 2 -
Foreword
The text of the International Standard IEC 61730-2:2004, prepared by IEC TC 82, Solar photovoltaic energy
systems, together with the common modifications prepared by the Technical Committee CENELEC TC 82,
Solar photovoltaic energy systems, was submitted to the formal vote and was approved by CENELEC as
EN 61730-2 on 2006-12-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2008-02-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2010-02-01
Annex ZA has been added by CENELEC.
__________
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- 3 - EN 61730-2:2007
Endorsement notice
The text of the International Standard IEC 61730-2:2004 was approved by CENELEC as a European
Standard with agreed common modifications as given below.
COMMON MODIFICATIONS
General
Replace all references to "IEC 61730-1", "IEC 61730-2" and "this part of IEC 61730" by "EN 61730-1",
"EN 61730-2" and "this part of EN 61730".
2 Normative references
Replace the entire clause by:
See Annex ZA.
3 Application classes
3.2 Class A: General access, hazardous voltage, hazardous power applications
Replace the text by:
Modules rated for use in this application class may be used in systems operating at greater than 120 V DC.
Modules qualified for safety through EN 61730-1 and this part of EN 61730 within this application class are
considered to meet the requirements for safety class II.
3.4 Class C: Limited voltage
Change the title of the subclause as given above.
Replace the text by:
Modules rated for use in this application class are restricted to systems operating at less than 120 V DC.
Modules qualified for safety through EN 61730-1 and this part of EN 61730 within this application class are
considered to meet the requirements for safety class III.
NOTE Safety classes are defined within EN 61140.
5 Application classes and their necessary test procedures
Table 7 Delete "MST 23" from the row referring to "Fire test" and replace the content of footnote ** by:
** A European fire test is under consideration.
8 Testing
Figure 1 Delete "MST 23" from the box referring to "Fire test" and add "*" referring to a footnote reading:
* A European fire test is under consideration.
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EN 61730-2:2007 - 4 -
10 Test procedures
10.4.2 Apparatus
Renumber the note into NOTE 1.
Add the following notes:
NOTE 2 The maximum over-current protection rating of a module can be interpreted as the module series fuse rating. A series fuse
may be required in the installation of PV arrays. According to Subclause 12.2 of EN 61730-1 the maximum over-current protection rating
has to be provided by the manufacturer.
NOTE 3 A procedure for determination of maximum reverse current is described in EN 50380.
10.8 Replace the entire subclause by:
10.8 Fire test
Under consideration.
10.9.2 Procedure
Renumber the note into NOTE 1.
Add the following note:
NOTE 2 The maximum over-current protection rating of a module can be interpreted as the module series fuse rating. A series fuse
may be required in the design of PV arrays. According to Subclause 12.2 of EN 61730-1 the maximum over-current protection rating
has to be provided by the manufacturer.
10.10 Module breakage test MST 32
Add the following note:
NOTE If the glass is qualified in accordance with EN 12150-1 this test can be omitted.
11.1.2 Preconditioning
Replace the text by:
It is advisable to perform the partial discharge-test before using the back sheet foil in the PV module
construction.
NOTE In order to achieve a certain statistical relevance 10 pieces should undergo the test. The size of the specimen depends on
requirement originating from the test apparatus.
11.1.3 Apparatus
Add the following sentence:
The geometry of the electrodes shall be in conformance with EN 60243-1.
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- 5 - EN 61730-2:2007
11.1.4 Procedure
In item a) add the following notes:
NOTE 1 Any voltage below maximum systems voltage can be used but the test should start at zero voltage because it may happen
that maximum systems voltage is not stated or unknown.
NOTE 2 When increasing the test voltage partial discharges may appear periodically. In that case, the inception voltage is the test
voltage at which permanent discharges occur for a duration of at least 60 s.
In item b) add the following note:
NOTE 3 Because partial discharges can disappear periodically, partial discharges at extinction voltage should stay below 1 pC for a
minimum of 60 s.
In item e) replace "U " by "V ".
OC OC
Annex A
Delete the annex.
Bibliography
Add the following notes for the standards indicated:
IEC 60068-2-21 NOTE Harmonized as EN 60068-2-21:1999 (not modified).
IEC 60364-1 NOTE Superseded by IEC 60364-1:2005, which is at draft stage for harmonization as HD 60364-1
(modified).
IEC 60529 NOTE Harmonized as EN 60529:1991 (not modified).
IEC 61345 NOTE Harmonized as EN 61345:1998 (not modified).
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EN 61730-2:2007 - 6 -
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies.
Publication Year Title EN/HD Year
1)
– – Glass in building - Thermally toughened soda EN 12150-1 –
lime silicate safety glass –
Part 1: Definition and description
– – Datasheet and nameplate information for EN 50380 2003
photovoltaic modules
1) 2)
IEC 60060-1 – High-voltage test techniques – HD 588.1 S1 1999
Part 1: General definitions and test requirements
1) 2)
IEC 60068-1 – Environmental testing – EN 60068-1 1994
Part 1: General and guidance
IEC 60243-1 1998 Electrical strength of insulating materials - Test EN 60243-1 1998
methods –
Part 1: Tests at power frequencies
1)
IEC 60410 – Sampling plans and procedures for inspection – –
by attributes
IEC 60664-1 1992 Insulation coordination for equipment within low-
+ A1 2000 voltage systems –
+ A2 2002 Part 1: Principles, requirements and tests EN 60664-1 2003
1)
IEC 60904-2 – Photovoltaic devices – EN 60904-2 2007
Part 2: Requirements for reference solar devices
IEC 61032 1997 Protection of persons and equipment by EN 61032 1998
enclosures - Probes for verification
1) 2)
IEC 61140 – Protection against electric shock - Common EN 61140 2002
aspects for installation and equipment
IEC 61215 2005 Crystalline silicon terrestrial photovoltaic (PV) EN 61215 2005
modules - Design qualification and type
approval
IEC 61646 1996 Thin-film terrestrial photovoltaic (PV) modules - EN 61646 1997
Design qualification and type approval
IEC 61730-1 (mod) 2004 Photovoltaic (PV) module safety qualification– EN 61730-1 2007
Part 1: Requirements for construction
1) 2)
ISO/IEC 17025 – General requirements for the competence of EN ISO/IEC 17025 2005
testing and calibration laboratories
1)
Undated reference.
2)
Valid edition at date of issue.
---------------------- Page: 7 ----------------------
- 7 - EN 61730-2:2007
Publication Year Title EN/HD Year
1)
ANSI/UL 514C – Non-metallic outlet boxes, flush device boxes – –
and covers
1)
ANSI/UL 790 – Tests for Fire Resistance of Roof Covering – –
Materials
1)
ANSI/UL 1703 – Flat – Plate Photovoltaic Modules and Panels – –
1)
ANSI Z97.1 – American National Standard for Safety Glazing – –
Materials Used in Buildings - Safety
Performance Specifications and Methods of
Test
---------------------- Page: 8 ----------------------
NORME CEI
INTERNATIONALE
IEC
61730-2
INTERNATIONAL
Première édition
STANDARD
First edition
2004-10
Qualification pour la sûreté de fonctionnement
des modules photovoltaïques (PV) –
Partie 2:
Exigences pour les essais
Photovoltaic (PV) module safety qualification –
Part 2:
Requirements for testing
© IEC 2004 Droits de reproduction réservés ⎯ Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in any
utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including
électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
CODE PRIX
W
PRICE CODE
Commission Electrotechnique Internationale
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue
---------------------- Page: 9 ----------------------
61730-2 © IEC:2004 – 3 –
CONTENTS
FOREWORD.7
1 Scope and object.11
2 Normative references .13
3 Application classes.15
3.1 General .15
3.2 Class A: General access, hazardous voltage, hazardous power applications.15
3.3 Class B: Restricted access, hazardous voltage, hazardous power
applications .15
3.4 Class C: Limited voltage, limited power applications.15
4 Test categories.15
4.1 General .15
4.2 Preconditioning tests .17
4.3 General inspection .17
4.4 Electrical shock hazard tests .17
4.5 Fire hazard tests .17
4.6 Mechanical stress tests .19
4.7 Component tests .19
5 Application classes and their necessary test procedures .19
6 Sampling .23
7 Test report.23
8 Testing .25
9 Pass criteria .29
10 Test procedures .29
10.1 Visual inspection MST 01 .29
10.2 Accessibility test MST 11 .29
10.3 Cut susceptibility test MST 12 .31
10.4 Ground continuity test MST 13 .37
10.5 Impulse voltage test MST 14 .37
10.6 Dielectric withstand test MST 16 .41
10.7 Temperature test MST 21.43
10.8 Fire test MST 23.47
10.9 Reverse current overload Test MST 26 .47
10.10 Module breakage test MST 32 .49
11 Component tests .59
11.1 Partial discharge-test MST 15 .59
11.2 Conduit bending test MST 33 .61
11.3 Terminal box knockout tests MST 44 .63
Annex A (normative) Fire tests, spread-of-flame and burning-brand tests .65
Bibliography.77
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61730-2 © IEC:2004 – 5 –
Figure 1 – Test sequences.27
Figure 2 – Cut susceptibility test .35
Figure 3 – Wave-form of the impulse voltage according to IEC 60060-1.41
Figure 4 – Impactor.53
Figure 5 – Impact test frame 1 .55
Figure 6 – Impact test frame 2 .57
Figure 7 – Test fixture assembly .61
Figure A.1 – Test apparatus for fire test.67
Figure A.2 – Burning brand construction .73
Table 1 – Preconditioning tests.17
Table 2 – General inspection test.17
Table 3 – Electrical shock hazard tests .17
Table 4 – Fire hazard tests .19
Table 5 – Mechanical stress tests .19
Table 6 – Component tests .19
Table 7 – Required tests, depending on the application class .21
Table 8 – Impulse voltage versus maximum system voltage.39
Table 9 – Component temperature limits.45
Table 10 – Bending loads .61
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61730-2 © IEC:2004 – 7 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
PHOTOVOLTAIC (PV) MODULE SAFETY QUALIFICATION –
Part 2: Requirements for testing
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 61730-2 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
82/357/FDIS 82/366/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.
---------------------- Page: 12 ----------------------
61730-2 © IEC:2004 – 9 –
IEC 61730 consists of the following parts, under the general title Photovoltaic (PV) module
safety qualification:
Part 1: Requirements for construction
Part 2: Requirements for testing
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.
---------------------- Page: 13 ----------------------
61730-2 © IEC:2004 – 11 –
PHOTOVOLTAIC (PV) MODULE SAFETY QUALIFICATION –
Part 2: Requirements for testing
1 Scope and object
This part of IEC 61730 describes the testing requirements for photovoltaic (PV) modules in
order to provide safe electrical and mechanical operation during their expected lifetime.
Specific topics are provided to assess the prevention of electrical shock, fire hazards, and
personal injury due to mechanical and environmental stresses. IEC 61730-1 pertains to the
particular requirements of construction. This part of IEC 61730 outlines the requirements of
testing.
This standard attempts to define the basic requirements for various application classes of
photovoltaic modules, but it cannot be considered to encompass all national or regional
building codes. The specific requirements for marine and vehicle applications are not covered.
This standard is not applicable to modules with integrated AC inverters (AC modules).
This standard is designed so that its test sequence can co-ordinate with those of IEC 61215
or IEC 61646, so that a single set of samples may be used to perform both the safety and
performance evaluation of a photovoltaic module design.
The test-sequences of this standard are arranged in an optimal way so that tests of
IEC 61215 or IEC 61646 can be used as basic preconditioning tests.
NOTE 1 The sequence of tests required in this standard may not test for all possible safety aspects associated
with the use of PV modules in all possible applications. This standard utilizes the best sequence of tests available
at the time of its writing. There are some issues, such as the potential danger of electric shock posed by a broken
module in a high voltage system, that should be addressed by the systems design, location, restrictions on access
and maintenance procedures.
The object 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 personal injury. The
standard defines the basic safety test requirements and additional tests that are a function of
the module end-use applications.
Test categories include general inspection, electrical shock hazard, fire hazard, mechanical
stress, and environmental stress.
NOTE 2 The additional testing requirements outlined in relevant ISO standards, or the national or local codes
which govern the installation and use of these modules in their intended locations, should be considered in addition
to the requirements contained within this document.
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61730-2 © IEC:2004 – 13 –
2 Normative references
The following referenced documents are indispensable for the application of this document.
For dated references, only the edition cited applies. For undated references, the latest edition
of the referenced document (including any amendments) applies.
IEC 60060-1, High-voltage test techniques – Part 1: General definitions and test requirements
IEC 60068-1, Environmental testing – Part 1: General and guidance
IEC 60410, Sampling plans and procedures for inspection by attributes
IEC 60664-1:1992, Insulation co-ordination for equipment within low-voltage systems – Part 1
Principles, requirements and tests
Amendment 2 (2002)
IEC 60904-2, Photovoltaic devices – Part 2: Requirements for reference solar cells
IEC 60904-6, Photovoltaic devices – Part 6: Requirements for reference solar modules
IEC 61032:1997, Protection of persons and equipment by enclosures – Probes for verification
IEC 61140, Protection against electric shock – Common aspects for installation and
equipment
IEC 61215:2004, Crystalline silicon terrestrial photovoltaic (PV) modules – Design
qualification and type approval
IEC 61646:1996, Thin-film terrestrial photovoltaic (PV) modules – Design qualification and
type approval
IEC 61730-1:2004, Photovoltaic (PV) module safety qualification – Part 1: Requirements for
construction
ISO/IEC 17025, General requirements for the competence of testing and calibration
laboratories
ANSI/UL 514C, Non-metallic outlet boxes, flush device boxes and covers
ANSI/UL 790, Tests for Fire Resistance of Roof Covering Materials
ANSI/UL 1703, Flat – Plate Photovoltaic Modules and Panels
ANSI Z97.1, American National Standard for Safety Glazing Materials Used in Buildings –
Safety Performance Specifications and Methods of Test
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61730-2 © IEC:2004 – 15 –
3 Application classes
3.1 General
Photovoltaic modules may be installed in many different applications. Therefore, it is
important to evaluate the potential hazards associated with those applications and to evaluate
the construction of the module accordingly.
Relevant safety requirements and necessary tests shall be performed to verify the
conformance to the requirements of that application class. This clause defines those
application classes and construction qualities required for each class.
Application classes for PV-modules are defined as follows:
3.2 Class A: General access, hazardous voltage, hazardous power applications
Modules rated for use in this application class may be used in systems operating at greater
than 50 V DC or 240 W, where general contact access is anticipated. Modules qualified for
safety through IEC 61730-1 and this part of IEC 61730 within this application class are
considered to meet the requirements for safety class II.
3.3 Class B: Restricted access, hazardous voltage, hazardous power applications
Modules rated for use in this application class are restricted
...
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