SIST EN 61730-1:2008
Photovoltaic (PV) module safety qualification -- Part 1: Requirements for construction
Photovoltaic (PV) module safety qualification -- Part 1: Requirements for construction
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 1: Anforderungen an den Aufbau
Qualification pour la sûreté de fonctionnement des modules photovoltaïques (PV) -- Partie 1: Exigences pour la construction
Décrit les exigences fondamentales de construction 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. Se rapporte aux exigences particulières de construction et sera utilisée conjointement avec la EN 61215 ou la EN 61646.
Varnostne zahteve fotonapetostnih (PV) modulov - 1. del: Konstrukcijske zahteve (IEC 61730-1:2004)
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 61730-1:2008
01-januar-2008
Varnostne zahteve fotonapetostnih (PV) modulov - 1. del: Konstrukcijske zahteve
(IEC 61730-1:2004)
Photovoltaic (PV) module safety qualification - Part 1: Requirements for construction
Photovoltaik (PV) -Module - Sicherheitsqualifikation - Teil 1: Anforderungen an den
Aufbau
Qualification pour la sureté de fonctionnement des modules photovoltaiques (PV) - Partie
1: Exigences pour la construction
Ta slovenski standard je istoveten z: EN 61730-1:2007
ICS:
27.160 6RQþQDHQHUJLMD Solar energy engineering
SIST EN 61730-1:2008 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
EUROPEAN STANDARD
EN 61730-1
NORME EUROPÉENNE
May 2007
EUROPÄISCHE NORM
ICS 27.160
English version
Photovoltaic (PV) module safety qualification –
Part 1: Requirements for construction
(IEC 61730-1:2004, modified)
Qualification pour la sûreté de Photovoltaik (PV) -Module –
fonctionnement des modules Sicherheitsqualifikation –
photovoltaïques (PV) – Teil 1: Anforderungen an den Aufbau
Partie 1: Exigences pour la construction (IEC 61730-1:2004, modifiziert)
(CEI 61730-1:2004, modifiée)
This European Standard was approved by CENELEC on 2007-02-01. 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 61730-1:2007 E
---------------------- Page: 2 ----------------------
EN 61730-1:2007 - 2 -
Foreword
The text of document 82/356/FDIS, future edition 1 of IEC 61730-1, prepared by IEC TC 82, Solar
photovoltaic energy systems, was submitted to the IEC-CENELEC parallel vote.
A draft amendment, prepared by the Technical Committee CENELEC TC 82, Solar photovoltaic energy
systems, was submitted to the Unique Acceptance Procedure.
The combined texts were approved by CENELEC as EN 61730-1 on 2007-02-01.
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.
_________
---------------------- Page: 3 ----------------------
- 3 - EN 61730-1:2007
Endorsement notice
The text of the International Standard IEC 61730-1:2004 was approved by CENELEC as a European
Standard with agreed common modifications as given below.
COMMON MODIFICATIONS
General
Replace all references to "this part of IEC 61730" and "IEC 61730-2" by "this part of EN 61730" and
"EN 61730-2".
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 this part of EN 61730 and EN 61730-2 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 this part of EN 61730 and EN 61730-2 within this application class
are considered to meet the requirements for safety class III.
NOTE Safety classes are defined within EN 61140.
5 Polymeric materials
5.1 General
Replace the second paragraph by:
Exception: Encapsulation materials (such as EVA, PVB, TPU etc.) are not required to meet these
requirements.
5.2 Polymers serving as an enclosure for live parts
In Item c), replace "ANSI/UL 746C" by "EN ISO 4892 series".
---------------------- Page: 4 ----------------------
EN 61730-1:2007 - 4 -
5.3 Polymers serving to support live parts
In item b), replace "250 V" by "250".
Add the following notes:
NOTE 1 Polymeric materials having a CTI of 250 or more fall within insulation class IIIa of EN 60664-1.
NOTE 2 The use of polymeric materials requires consideration of the system voltage rating and the pollution class. In this context
Table 4 of EN 60664-1 should be referenced.
Delete item c).
In Item d), replace "ANSI/UL 746C" by "EN ISO 4892 series".
Renumber the note into NOTE 3.
5.4.3 Polymers serving as an enclosure for live parts
Replace "ANSI/UL 746C" by "EN ISO 4892 series".
7.3 Connectors
Add the following sentence:
The standardization of connectors for PV application is an ongoing activity in CENELEC. This subclause
will be superseded by a future European Standard.
7.3.1 Replace "IEC 60130 series" by "EN 61984".
7.3.3 Replace "IEC 61721" by "IEC 60512-5-1" and "EN 60512-5-2".
11 Marking
Add the following sentence:
The marking should be done in conformance with EN 50380.
11.1 Add to the list:
– application class of the product;
– for class A modules, the Safety Class II symbol (see IEC 60417, symbol 5172).
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- 5 - EN 61730-1:2007
Bibliography
Add the following notes for the standards indicated:
IEC 60364-1 NOTE IEC 60364-1:1992 is harmonized as HD 384.1 S2 (modified). IEC 60364-1:2005 is at draft
stage for harmonization as HD 60364-1 (modified).
IEC 62145 NOTE Harmonized as EN 62145:2004 (not modified).
ISO 9773 NOTE Harmonized as EN ISO 9773:1998 (not modified).
---------------------- Page: 6 ----------------------
EN 61730-1:2007 - 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
– – Datasheet and nameplate information for EN 50380 2003
photovoltaic modules
1) 2)
IEC 60112 – Method for the determination of the proof and EN 60112 2003
the comparative tracking indices of solid
insulating materials
1)
IEC 60189-2 – Low-frequency cables and wires with PVC – –
insulation and PV sheath –
Part 2: Cables in pairs, triples, quads and
quintuples for inside installations
1) 2)
IEC 60216-1 – Electrical insulating materials - Properties of EN 60216-1 2001
thermal endurance –
Part 1: Ageing procedures and evaluation of
test results
1) 2)
IEC 60216-5 – Electrical insulating materials - Thermal EN 60216-5 2003
endurance properties –
Part 5: Determination of relative thermal
endurance index (RTE) of an insulating
material
1) 2)
IEC 60364-5-51 – Electrical installations of buildings – EN 60364-5-51 2006
(mod) Part 5-51: Selection and erection of electrical
equipment - Common rules
IEC 60417 data- Graphical symbols for use on equipment – –
base
1) 2)
IEC 60512-5-1 – Connectors for electronic equipment - Tests EN 60512-5-1 2002
and measurements –
Part 5-1: Current-carrying capacity tests -
Test 5a: Temperature rise
1) 2)
IEC 60512-5-2 – Connectors for electronic equipment - Tests EN 60512-5-2 2002
and measurements –
Part 5-2: Current-carrying capacity tests -
Test 5b: Current-temperature derating
1) 2)
IEC 60529 – Degrees of protection provided by enclosures EN 60529 1991
(IP Code) + corr. May 1993
1)
Undated reference.
2)
Valid edition at date of issue.
---------------------- Page: 7 ----------------------
- 7 - EN 61730-1:2007
Publication Year Title EN/HD Year
1) 2)
IEC 60664-1 – Insulation coordination for equipment within EN 60664-1 2003
low-voltage systems –
Part 1: Principles, requirements and tests
1) 2)
IEC 60695-1-1 – Fire hazard testing – EN 60695-1-1 2000
Part 1-1: Guidance for assessing the fire
hazard of electrotechnical products - General
guidelines
1) 2)
IEC 60947-1 – Low-voltage switchgear and controlgear – EN 60947-1 2004
Part 1: General rules + corr. November 2004
IEC 61140 2001 Protection against electric shock - Common EN 61140 2002
aspects for installation and equipment
1) 2)
IEC 61215 – Crystalline silicon terrestrial photovoltaic (PV) EN 61215 2005
modules - Design qualification and type
approval
1) 2)
IEC 61646 – Thin-film terrestrial photovoltaic (PV) modules EN 61646 1997
- Design qualification and type approval
IEC 61730-2 (mod) 2004 Photovoltaic (PV) module safety qualification - EN 61730-2 2007
- Part 2: Requirements for testing
1) 2)
IEC 61984 – Connectors - Safety requirements and tests EN 61984 2001
1)
ISO 261 – ISO general purpose metric screw threads - – –
General plan
1)
ISO 262 – ISO general purpose metric screw threads - - -
Selected sizes for screws, bolts and nuts
ISO 4892 Series Plastics – Methods of exposure to laboratory EN ISO 4892 Series
light sources
1)
ANSI Z97.1 – American National Standard for Safety – –
Glazing Materials Used in Buildings - Safety
Performance Specifications and Methods of
Test
1)
ASTM E162-02a – Standard Test Method for Surface – –
Flammability of Materials Using a Radiant
Heat Energy Source
---------------------- Page: 8 ----------------------
NORME CEI
INTERNATIONALE
IEC
61730-1
INTERNATIONAL
Première édition
STANDARD
First edition
2004-10
Qualification pour la sûreté de fonctionnement
des modules photovoltaïques (PV) –
Partie 1:
Exigences pour la construction
Photovoltaic (PV) module safety qualification –
Part 1:
Requirements for construction
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
R
PRICE CODE
Commission Electrotechnique Internationale
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue
---------------------- Page: 9 ----------------------
61730-1 IEC:2004 – 3 –
CONTENTS
FOREWORD.5
1 Scope and object.9
2 Normative references .9
3 Application classes.13
3.1 General .13
3.2 Class A: General access, hazardous voltage, hazardous power applications.13
3.3 Class B: Restricted access, hazardous voltage, hazardous power applications .13
3.4 Class C: Limited voltage, limited power applications.13
4 Construction requirements.13
4.1 General requirements.13
4.2 Metal parts .15
5 Polymeric materials .15
5.1 General .15
5.2 Polymers serving as an enclosure for live parts.17
5.3 Polymers serving to support live parts .17
5.4 Polymers serving as an outer surface.17
5.5 Barriers .19
5.6 Structural glazing materials .19
6 Internal wiring and current-carrying parts.19
6.1 Internal wiring .19
6.2 Splices .19
6.3 Mechanical securement.21
7 Connections .21
7.1 Field connections – general requirements .21
7.2 Field wiring terminals .21
7.3 Connectors.23
7.4 Output lead or cables .23
8 Bonding and grounding.25
9 Creepage and clearance distances.27
10 Field wiring compartments with covers .29
10.1 General .29
10.2 Wall thickness .29
10.3 Internal volume .29
10.4 Openings.31
10.5 Gaskets and seals.31
10.6 Strain relief .31
10.7 Sharp edges.31
10.8 Conduit applications – Metallic .31
10.9 Conduit applications – Non-metallic.33
11 Marking .33
12 Requirements for supplied documents .35
13 Modifications .37
Bibliography.39
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61730-1 IEC:2004 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
PHOTOVOLTAIC (PV) MODULE SAFETY QUALIFICATION –
Part 1: Requirements for construction
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 61730-1 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
82/356/FDIS 82/365/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: 11 ----------------------
61730-1 IEC:2004 – 7 –
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: 12 ----------------------
61730-1 IEC:2004 – 9 –
PHOTOVOLTAIC (PV) MODULE SAFETY QUALIFICATION –
Part 1: Requirements for construction
1 Scope and object
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.
NOTE The additional construction 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.
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 60112, Method for the determination of the proof and the comparative tracking indices of
solid insulating materials
IEC 60130 (all parts), Connectors for frequencies below 3 MHz
IEC 60189-2, Low-frequency cables and wires with PVC insulation and PVC sheath – Part 2:
Cables in pairs, triples, quads and quintuples for inside installations
---------------------- Page: 13 ----------------------
61730-1 IEC:2004 – 11 –
IEC 60216-1, Electrical insulating materials − Thermal endurance properties − Part 1: Ageing
procedures and evaluation of test results
IEC 60216-5, Electrical insulating materials − Thermal endurance properties − Part 5:
Determination of relative thermal endurance index (RTE) of an insulating material
IEC 60364-5-51, Electrical installations of buildings – Part 5-51: Selection and erection of
electrical equipment – Common rules
1
IEC 60417-DB:2002 , Graphical symbols for use on equipment
IEC 60529, Degrees of protection provided by enclosures (IP Code)
IEC 60695-1-1, Fire hazard testing − Part 1-1: Guidance for assessing the fire hazard of
electrotechnical products − General guidelines
IEC 60947-1, Low-voltage switchgear and controlgear – Part 1: General rules
IEC 61140:2001, Protection against electric shock – Common aspects for installation and
equipment
IEC 61215, Crystalline silicon terrestrial photovoltaic (PV) modules – Design qualification and
type approval
IEC 61646, Thin-film terrestrial photovoltaic (PV) modules – Design qualification and type
approval
IEC 61721, Susceptibility of a photovaltaic (PV) module to accidental impact damage
(resistance to impact test)
IEC 61730-2:2004, Photovaltaic (PV) module safety qualification – Part 2: Requirements for
testing
ISO 261, ISO general purpose metric screw threads – General plan
ISO 262, ISO general purpose metric screw threads – Selected sizes for screws, bolts, and
nuts
ANSI/UL 746C, Standard for Polymeric Materials – Use in Electrical Equipment Evaluation
ANSI Z97.1, American National Standard for Safety Glazing Materials Used in Buildings –
Safety Performance Specifications and Methods of Test
ASTM D2303-97, Standard Test Methods for Liquid-Contaminant, Inclined-Plane Tracking and
Erosion of Insulating Materials
ASTM E162-02a, Standard Test Method for Surface Flammability of Materials Using a Radiant
Heat Energy Source
___________
1
“DB” refers to the IEC on-line database.
---------------------- Page: 14 ----------------------
61730-1 IEC:2004 – 13 –
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 this part of IEC 61730 and IEC 61730-2 and 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 to systems protected from public
access by fences, location, etc. Modules evaluated within this application class provide
protection by basic insulation, are considered to meet the requirements for safety class 0.
3.4 Class C: Limited voltage, limited power applications
Modules rated for use in this application class are restricted to systems operating at less than
50 V DC and 240 W, where general contact access is anticipated. Modules qualified for safety
through this part of IEC 61730 and IEC 61730-2 within this application class are considered to
meet the requirements for safety class III.
NOTE Safety classes are defined within IEC 61140.
4 Construction requirements
4.1 General requirements
4.1.1 All modules shall be able to operate under environmental condition type AB8 according
to IEC 60364-5-51.
4.1.2 A module shall be completely assembled when shipped from the factory, or shall be
provided in subassemblies, provided assembly of the product does not involve any action that
is likely to affect compliance with the requirements of the IEC 61730 series.
4.1.3 An assembly part, such as a terminal compartment cover, need not be affixed to the
module at the factory. Incorporation of a module into the final assembly shall not require any
alteration of the module from its originally evaluated form, unless specific details describing
necessary modification(s) are provided in the installation instructions.
---------------------- Page: 15 ----------------------
61730-1 IEC:2004 – 15 –
4.1.4 If a module must bear a definite relationship to another module for the intended
installation and operation (for example, to allow connectors to mate), it shall be constructed to
permit incorporation into the fin
...
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