Photovoltaics in buildings - Part 2: Requirements for building-integrated photovoltaic systems

IEC 63092-2:2020 specifies BIPV system requirements and applies to photovoltaic systems that are integrated into buildings with the photovoltaic modules used as building products. It focuses on the properties of these photovoltaic systems relevant to basic building requirements and the applicable electrotechnical requirements.
This document addresses requirements on the BIPV systems in the specific ways they are intended to be mounted and the mounting structure, but not the BIPV module itself, which is within the scope of IEC 63092-1.

General Information

Status
Published
Publication Date
28-Sep-2020
Current Stage
PPUB - Publication issued
Completion Date
29-Sep-2020
Ref Project

Buy Standard

Standard
IEC 63092-2:2020 - Photovoltaics in buildings - Part 2: Requirements for building-integrated photovoltaic systems
English language
22 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (sample)

IEC 63092-2
Edition 1.0 2020-09
INTERNATIONAL
STANDARD
colour
inside
Photovoltaics in buildings –
Part 2: Requirements for building-integrated photovoltaic systems
IEC 63092-2:2020-09 (en)
---------------------- Page: 1 ----------------------
THIS PUBLICATION IS COPYRIGHT PROTECTED
Copyright © 2020 IEC, Geneva, Switzerland

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.
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 Electropedia - www.electropedia.org

The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,

variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English

committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.

and withdrawn publications. Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Just Published - webstore.iec.ch/justpublished

Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary

details all new publications released. Available online and 67 000 electrotechnical terminology entries in English and

once a month by email. French extracted from the Terms and Definitions clause of

IEC publications issued since 2002. Some entries have been

IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and

If you wish to give us your feedback on this publication or CISPR.
need further assistance, please contact the Customer Service
Centre: sales@iec.ch.
---------------------- Page: 2 ----------------------
IEC 63092-2
Edition 1.0 2020-09
INTERNATIONAL
STANDARD
colour
inside
Photovoltaics in buildings –
Part 2: Requirements for building-integrated photovoltaic systems
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 27.160 ISBN 978-2-8322-8877-1

Warning! Make sure that you obtained this publication from an authorized distributor.

® Registered trademark of the International Electrotechnical Commission
---------------------- Page: 3 ----------------------
– 2 – IEC 63092-2:2020 © IEC 2020
CONTENTS

FOREWORD ........................................................................................................................... 4

1 Scope .............................................................................................................................. 6

2 Normative references ...................................................................................................... 6

3 Terms and definitions ...................................................................................................... 9

4 Requirements ................................................................................................................ 11

4.1 Electrotechnical requirements (for system) ........................................................... 11

4.2 Building-related requirements (for system) ............................................................ 12

4.2.1 General ......................................................................................................... 12

4.2.2 Requirements for systems using modules with at least one glass pane .......... 13

4.2.3 Requirements for systems using modules without glass panes ...................... 16

5 Labelling ........................................................................................................................ 18

6 System documentation, commissioning tests and inspection .......................................... 19

7 Reporting....................................................................................................................... 19

Annex A (informative) Resistance to wind-driven rain of BIPV roof coverings with

discontinuously laid elements – Test method ........................................................................ 20

A.1 General ................................................................................................................. 20

A.2 Scope ................................................................................................................... 20

A.3 Terms and definitions ............................................................................................ 20

A.4 Symbols and units................................................................................................. 21

A.5 Principle ............................................................................................................... 21

A.6 Test specimen ...................................................................................................... 21

A.6.1 Test specimen samples ................................................................................. 21

A.6.2 Dimension of the test specimen ..................................................................... 21

A.6.3 Number of sets of tests .................................................................................. 22

A.6.4 Preparation of test specimen ......................................................................... 22

A.7 Apparatus ............................................................................................................. 22

A.7.1 General ......................................................................................................... 22

A.7.2 Suction chamber ............................................................................................ 22

A.7.3 Fan system .................................................................................................... 22

A.7.4 Rain generation installation ........................................................................... 23

A.7.5 Run-off water ................................................................................................. 24

A.7.6 Observation and measurement of leakage ..................................................... 24

A.8 Test procedure ...................................................................................................... 24

A.8.1 General ......................................................................................................... 24

A.8.2 Test conditions .............................................................................................. 25

A.9 Evaluation and expression of test results .............................................................. 27

A.10 Test report ............................................................................................................ 27

Bibliography .......................................................................................................................... 29

Figure 1 – Example of optically representative area of a crystalline silicon-based (top)

and a thin-film (bottom) BIPV system for the calculation method based on spectral

measurements ...................................................................................................................... 11

---------------------- Page: 4 ----------------------
IEC 63092-2:2020 © IEC 2020 – 3 –

Table 1 – Summary of building-related requirements from IEC 63092-2 specific to BIPV

systems using modules with at least one glass pane ............................................................. 16

Table 2 – Summary of building-related requirements from IEC 63092-2 specific to BIPV

systems using modules based on polymer waterproofing sheet or metal sheet ...................... 18

Table A.1 – Wind speed modification factor .......................................................................... 26

Table A.2 – Wind and rain test conditions ............................................................................. 26

---------------------- Page: 5 ----------------------
– 4 – IEC 63092-2:2020 © IEC 2020
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
PHOTOVOLTAICS IN BUILDINGS –
Part 2: Requirements for building-integrated photovoltaic systems
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 itself does not provide any attestation of conformity. Independent certification bodies provide conformity

assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any

services carried out by independent certification bodies.

6) All users should ensure that they have the latest edition of this publication.

7) No liability shall attach to IEC or its directors, employees, servants or agents including 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 63092-2 has been prepared by IEC technical committee 82: Solar

photovoltaic energy systems, in collaboration with ISO technical committee 160: Glass in

building.
This standard is based on EN 50583-2.
The text of this International Standard is based on the following documents:
FDIS Report on voting
82/1768A/FDIS 82/1793/RVD

Full information on the voting for the approval of this International Standard can be found in the

report on voting indicated in the above table.

This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

A list of all parts in the IEC 63092 series, published under the general title Photovoltaics in

buildings, can be found on the IEC website.
---------------------- Page: 6 ----------------------
IEC 63092-2:2020 © IEC 2020 – 5 –

The committee has decided that the contents of this document will remain unchanged until the

stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to

the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates

that it contains colours which are considered to be useful for the correct understanding

of its contents. Users should therefore print this document using a colour printer.

---------------------- Page: 7 ----------------------
– 6 – IEC 63092-2:2020 © IEC 2020
PHOTOVOLTAICS IN BUILDINGS –
Part 2: Requirements for building-integrated photovoltaic systems
1 Scope

IEC 63092-1 specifies BIPV (building-integrated photovoltaic) module requirements while this

document specifies BIPV system requirements. Both parts specify building requirements and

the applicable electrotechnical requirements (both in general and specific with respect to

module assembly and application category).

This document applies to photovoltaic systems that are integrated into buildings with the

photovoltaic modules used as building products. It focuses on the properties of these

photovoltaic systems relevant to basic building requirements and the applicable electrotechnical

requirements. This document references international standards, technical reports and

guidelines. For some applications, national standards (or regulations) for building products may

also apply in individual countries, which are not explicitly referenced here and for which

harmonized International Standards are not yet available.

This document is addressed to manufacturers, planners, system designers, installers, testing

institutes and building authorities.

This document does not apply to concentrating photovoltaic systems or photovoltaic systems

using concentrating photovoltaic modules.

This document addresses requirements on the BIPV systems in the specific ways they are

intended to be mounted and the mounting structure, but not the BIPV module itself, which is

within the scope of IEC 63092-1.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements 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 60364-1, Low-voltage electrical installations – Part 1: Fundamental principles, assessment

of general characteristics, definitions

IEC 60364-4-41, Low-voltage electrical installations – Part 4-41: Protection for safety –

Protection against electric shock

IEC 60364-4-42, Low-voltage electrical installations – Part 4-42: Protection for safety –

Protection against thermal effects

IEC 60364-4-43, Low-voltage electrical installations – Part 4-43: Protection for safety –

Protection against overcurrent

IEC 60364-4-44, Low-voltage electrical installations – Part 4-44: Protection for safety –

Protection against voltage disturbances and electromagnetic disturbances

IEC 60364-5-51, Electrical installations of buildings – Part 5-51: Selection and erection of

electrical equipment – Common rules
---------------------- Page: 8 ----------------------
IEC 63092-2:2020 © IEC 2020 – 7 –

IEC 60364-5-52, Low-voltage electrical installations – Part 5-52: Selection and erection of

electrical equipment – Wiring systems

IEC 60364-5-53, Low-voltage electrical installations – Part 5-53: Selection and erection of

electrical equipment – Devices for protection for safety, isolation, switching, control and

monitoring

IEC 60364-5-54, Low-voltage electrical installations – Part 5-54: Selection and erection of

electrical equipment – Earthing arrangements and protective conductors

IEC 60364-5-55, Electrical installations of buildings – Part 5-55: Selection and erection of

electrical equipment – Other equipment

IEC 60364-5-56, Low-voltage electrical installations – Part 5-56: Selection and erection of

electrical equipment – Safety services
IEC 60364-6, Low-voltage electrical installations – Part 6: Verification

IEC 60364-7-712, Low-voltage electrical installations – Part 7-712: Requirements for special

installations or locations – Solar photovoltaic (PV) power supply systems
IEC 61082-1, Preparation of documents used in electrotechnology – Part 1: Rules

IEC 61215-1, Terrestrial photovoltaic (PV) modules – Design qualification and type approval –

Part 1: Test requirements

IEC 61215-2, Terrestrial photovoltaic (PV) modules – Design qualification and type approval –

Part 2: Test procedures
IEC 61724-1, Photovoltaic system performance – Part 1: Monitoring

IEC TS 61724-2, Photovoltaic system performance – Part 2: Capacity evaluation method

IEC TS 61724-3, Photovoltaic system performance – Part 3: Energy evaluation method

IEC 61730-2, Photovoltaic (PV) module safety qualification – Part 2: Requirements for testing

IEC TS 61836, Solar photovoltaic energy systems – Terms, definitions and symbols

IEC 62446-1, Photovoltaic (PV) systems – Requirements for testing, documentation and

maintenance – Part 1: Grid connected systems – Documentation, commissioning tests and

inspection
IEC 62548, Photovoltaic (PV) arrays – Design requirements

IEC 63092-1, Photovoltaics in buildings – Part 1: Requirements for building-integrated

photovoltaic modules

IEC/IEEE 82079-1, Preparation of information for use (instructions for use) of products – Part 1:

Principles and general requirements
ISO 2394, General principles on reliability for structures
ISO 3010, Bases for design of structures – Seismic actions on structures
---------------------- Page: 9 ----------------------
– 8 – IEC 63092-2:2020 © IEC 2020
ISO 4354, Wind actions on structures
ISO 4355, Bases for design of structures – Determination of snow loads on roofs

ISO 4356, Bases for the design of structures – Deformations of buildings at the serviceability

limit states

ISO 6946, Building components and building elements – Thermal resistance and thermal

transmittance – Calculation methods

ISO 9050, Glass in building – Determination of light transmittance, solar direct transmittance,

total solar energy transmittance, ultraviolet transmittance and related glazing factors

ISO 12543-1, Glass in building – Laminated glass and laminated safety glass – Part 1:

Definitions and description of component parts
ISO 12494, Atmospheric icing of structures

ISO 12631, Thermal performance of curtain walling – Calculation of thermal transmittance

ISO 13033, Bases for design of structures – Loads, forces and other actions – Seismic actions

on nonstructural components for building applications
ISO 15099, Thermal performance of windows, doors and shading devices – Detailed
calculations

ISO 15821, Doorsets and windows – Water-tightness test under dynamic pressure – Cyclonic

aspects
ISO 16813, Building environment design – Indoor environment – General principles

ISO 19467, Thermal performance of windows and doors – Determination of solar heat gain

coefficient using solar simulator
ISO 22111, Bases for design of structures – General requirements

ISO 28278-1, Glass in building – Glass products for structural sealant glazing – Part 1:

Supported and unsupported monolithic and multiple glazing

ISO 28278-2, Glass in building – Glass products for structural sealant glazing – Part 2:

Assembly rules

ISO 29584, Glass in building – Pendulum impact testing and classification of safety glass

ISO 52022-1, Energy performance of buildings – Thermal, solar and daylight properties of

building components and elements – Part 1: Simplified calculation method of the solar and

daylight characteristics for solar protection devices combined with glazing

ISO 52022-3, Energy performance of buildings – Thermal, solar and daylight properties of

building components and elements – Part 3: Detailed calculation method of the solar and

daylight characteristics for solar protection devices combined with glazing
---------------------- Page: 10 ----------------------
IEC 63092-2:2020 © IEC 2020 – 9 –
3 Terms and definitions

For the purposes of this document, the terms and definitions given in IEC 61215-1, IEC 61215-2,

IEC 61724-1, IEC TS 61724-2, IEC TS 61724-3, IEC TS 61836, IEC 63092-1 and ISO 12543-1

(in case the module contains one or more glass panes), together with the following, apply.

NOTE Annex A-specific definitions are included in the Annex itself.

ISO and IEC maintain terminological databases for use in standardization at the following

addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
building-integrated photovoltaic system
BIPV system

photovoltaic system in which the PV modules satisfy the definition of IEC 63092-1 for

BIPV modules. It includes the “PV array” as defined by IEC 62548 and the mechanical mounting

systems needed to integrate the BIPV modules into the building

Note 1 to entry: Inverters are not addressed here, as they are adequately covered by International Standards

applying to inverters in PV systems. Building integration of a PV system does not change the requirements on the

inverters.
3.2
optically representative area of the system

selected surface area of the system that includes all the components of the system which have

a significant effect on its optical properties and g value. The ratio of electrically active area (i.e.

area covered by PV cells and interconnectors) to electrically inactive area within the optically

representative area should not differ by more than 5 % from the ratio of the total electrically

active area to the total electrically inactive area for the complete system (see Figure 1)

Note 1 to entry: The figure of 5 % was determined to result in an error of 3 % or less in the g value for BIPV modules

consisting of crystalline silicon PV cells spaced in a light-transmitting medium.

Note 2 to entry: The g value refers to the solar heat gain coefficient (SHGC) as defined in ISO 19467.

Note 3 to entry: If the solar cells themselves consist of opaque and transparent areas, or there are inhomogeneous

layers such as ceramic frits or coloured interlayers in front of the solar cell layer, special care shall be taken in the

selection of the "optically representative area" to ensure that it represents the proportions of all optically different

areas of the BIPV system to within the specified tolerance.

Ratio of electrically active area to electrically inactive area for the complete system, including frame:

𝐴𝐴 +𝐴𝐴 +𝐴𝐴
cell,total intercon,total jb,total
𝑟𝑟 = (1)
total,sys
𝐴𝐴 +𝐴𝐴
inact,total frame,total

Ratio of electrically active area to electrically inactive area for the optically representative area of the system,

including frame:
𝐴𝐴 +𝐴𝐴
cell,rep intercon,rep
𝑟𝑟 = (2)
rep,sys
𝐴𝐴 +𝐴𝐴
inact,rep frame,rep

Relation between the ratios associated to the complete system (r ) and the optically representative area of the

tota,sys
system (r ):
rep,sys
𝑟𝑟 −𝑟𝑟
total,sys rep,sys
= ±5 % (3)
𝑟𝑟
total,sys
---------------------- Page: 11 ----------------------
– 10 – IEC 63092-2:2020 © IEC 2020
where

r is the ratio of electrically active area to electrically inactive area for the complete system, including

total,sys
frame;
A is the surface area covered by cells within total system area;
cell,total
A is the surface area covered by interconnectors within total system area;
intercon,total

A is the surface area covered by junction box, if within area of light-transmitting medium

jb,total
(otherwise A = 0);
jb,total
A is the electrically inactive surface area within total system area;
inact, total
A is the surface area of the frame within total system area;
frame, total

r is the ratio of electrically active area to electrically inactive area for the optically representative

rep,sys
area of the system;
A is the surface area covered by cells within optically representative area;
cell,rep

A is the surface area covered by interconnectors within optically representative area;

intercon,rep

A is the electrically inactive surface area within optically representative area;

inact,rep
A is the surface area of the frame within optically representative area.
frame, rep
---------------------- Page: 12 ----------------------
IEC 63092-2:2020 © IEC 2020 – 11 –
Key
1 photovoltaic cell or thin film 4 perimeter of total system area
2 interconnection 5 optically representative area of the system
3 framing
The same principles apply to modules consisting of other types of solar cell.

Figure 1 – Example of optically representative area of a crystalline silicon-based (top)

and a thin-film (bottom) BIPV system for the calculation method
based on spectral measurements
4 Requirements
4.1 Electrotechnical requirements (for system)

BIPV systems shall comply with the applicable electrotechnical requirements as stated in

IEC 60364-1, IEC 60364-4-41, IEC 60364-4-42, IEC 60364-4-43 and IEC 60364-4-44,

IEC 60364-5-51, IEC 60364-5-52, IEC 60364-5-53, IEC 60364-5-54, IEC 60364-5-55 and IEC

60364-5-56 and IEC 60364-6.

BIPV systems shall be designed to comply with the requirements of IEC 60364-7-712.

---------------------- Page: 13 ----------------------
– 12 – IEC 63092-2:2020 © IEC 2020
If the system is grid-connected, the following standard shall apply:
– IEC 62446-1.

Also, BIPV systems may be required to comply with national, regional or local standards or

electrical codes for buildings, including electromagnetic compatibility requirements.

NOTE An example of such requirements can be found under the European Electromagnetic Compatibility Directive

EMCD 2004/108/EC that states the following:
Protection requirements

Equipment shall be so designed and manufactured, having regard to the state of the art, as to ensure that:

a) the electromagnetic disturbance generated does not exceed the level above which radio and telecommunications

equipment or other equipment cannot operate as intended;

b) it has a level of immunity to the electromagnetic disturbance to be expected in its intended use which allows it

to operate without unacceptable degradation of its intended use.
Specific requirements for fixed installations
Installation and intended use of components

A fixed installation shall be installed applying good engineering practices and respecting the information on the

intended use of its components, with a view to meeting the protection requirements set out under protection

requirements. Those good engineering practices shall be documented and the documentation shall be held by the

person(s) responsible at the disposal of the relevant national authorities for inspection purposes for as long as the

fixed installation is in operation.
4.2 Building-related requirements (for system)
4.2.1 General

This document distinguishes between BIPV systems using modules with at least one glass pane

and those that do not. In addition to naming the aforementioned electrical requirements, this

document classifies BIPV systems into five different application categories. Specific normative

references are listed for each of the following categories (A to E) as defined in IEC 63092-1:

– Category A: Sloping, roof-integrated, not accessible from within the building;
– Category B: Sloping, roof-integrated, accessible from within the building;

– Category C: Non-sloping, (vertically) envelope-integrated, not accessible from within the

building;

– Category D: Non-sloping, (vertically) envelope-integrated, accessible from within the

building;

– Category E: Externally integrated, accessible or not accessible from within the building.

NOTE For more information on definitions and pictograms associated with the five application categories, see

IEC 63092-1.

BIPV systems shall be designed to comply with the general principles of reliability contained in

ISO 2394 and ISO 22111 (for verification by the partial factor method), the criteria of

deformation in ISO 4356 and the general principles in ISO 16813 regarding the design that

takes into account healthy indoor environment for the occupants, and protecting the

environment for future generations.

BIPV systems shall be designed and built in such a way that the loadings that are liable to act

on them during their construction and use will not lead to any of the following:
a) collapse of th
...

Questions, Comments and Discussion

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