EN IEC 62282-3-100:2020

Fuel cell technologies - Part 3-100: Stationary fuel cell power systems - Safety

IEC 62282-3-100:2019 is available as IEC 62282-3-100:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 62282-3-100:2019 applies to stationary packaged, self-contained fuel cell power systems or fuel cell power systems comprised of factory matched packages of integrated systems which generate electricity through electrochemical reactions. This document is applicable to stationary fuel cell power systems intended for indoor and outdoor commercial, industrial and residential use in non-hazardous areas. This second edition cancels and replaces the first edition published in 2012. This edition includes the following significant technical changes with respect to the previous edition: a) recognition that fuel carrying components qualified to leakage standards (soundness) need not be considered as potential flammable leak sources; b) new annex for small power systems; and c) clarifications for numerous requirements and tests

Brennstoffzellentechnologien - Teil 3-100: Stationäre Brennstoffzellen-Energiesysteme - Sicherheit

Technologies des piles à combustible - Partie 3-100: Systèmes à piles à combustible stationnaires - Sécurité

IEC 62282-3-100:2019 est disponible sous forme de IEC 62282-3-100:2019 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.L’IEC 62282-3-100:2019 s’applique aux systèmes à piles à combustible autonomes assemblés pour être stationnaires ou aux systèmes à piles à combustible d’un ensemble assemblé en usine de systèmes intégrés qui génèrent de l’électricité par réactions électrochimiques. Le présent document s’applique aux systèmes à piles à combustibles stationnaires destinés à un usage à l'intérieur et à l'extérieur, commercial, industriel ou d'habitation, dans des zones non dangereuses. Cette deuxième édition annule et remplace la première édition parue en 2012. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) il n’est pas nécessaire de tenir compte des composants transportant le combustible qui sont qualifiés par rapport aux normes de fuite (intégrité) comme des sources potentielles de fuites inflammables; b) nouvelle annexe relative aux petits systèmes à piles à combustible; et c) éclaircissements relatifs à de nombreux essais et exigences.

Tehnologije gorivnih celic - 3-100. del: Nepremični elektroenergetski sistemi z gorivnimi celicami - Varnost (IEC 62282-3-100:2019)

General Information

• Status: Published
• Publication Date: 09-Apr-2020
• ICS: 27.070 - Fuel cells
• Technical Committee: CLC/SR 105 - Fuel cell technologies
• Drafting Committee: IEC/TC 105 - IEC_TC_105
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 10-Apr-2020
• Completion Date: 10-Apr-2020
• Directive: 2014/35/EU - Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limits
• Directive: 2014/53/EU - Directive 2014/53/EU of The European Parliament and of the Council of 16 April 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of radio equipment and repealing Directive 1999/5/EC
• Mandate: M/511 - Mandate to CEN, CENELEC and ETSI relating to harmonised standards in the field of the Low Voltage Directive
• Ref Project: SIST EN IEC 62282-3-100:2020 - Fuel cell technologies - Part 3-100: Stationary fuel cell power systems - Safety (IEC 62282-3-100:2019)

Relations

• Replaces: EN 62282-3-100:2012 - Fuel cell technologies - Part 3-100: Stationary fuel cell power systems - Safety
• Effective Date: 27-Dec-2016

Overview

EN IEC 62282-3-100:2020 (IEC 62282-3-100:2019) is the harmonized CLC/CENELEC European adoption of the international safety standard for stationary fuel cell power systems. It applies to packaged, self‑contained fuel cell units or factory‑matched integrated systems that generate electricity by electrochemical reactions. The standard covers systems intended for indoor and outdoor commercial, industrial and residential use in non‑hazardous areas. Edition 2 (2020) supersedes the 2012 edition and includes a redline (RLV) showing technical changes.

Key topics and technical requirements

EN IEC 62282-3-100:2020 defines safety requirements, protective measures and type tests across the lifecycle of stationary fuel cell power systems. Major technical topics include:

• Safety strategy and protective measures - general safety principles, risk assessment and equivalent safety approaches.
• Physical environment & operating conditions - requirements for electrical input, fuel and water supply, vibration, handling, purging and storage.
• Materials selection and pressure equipment - guidance on material suitability, piping, flue gas venting and gas‑conveying parts.
• Fire and explosion prevention - design and mitigation measures for enclosures, burners and catalytic oxidation systems.
• Electrical safety & EMC - requirements for safe electrical design and electromagnetic compatibility in residential, commercial and industrial environments.
• Control systems and protective components - functional and fail‑safe control strategies, sensors and protective device requirements.
• Valves, rotating equipment and utilities - expectations for shut‑off/fuel valves, compressors, pumps and utility interfaces.
• Enclosures, thermal insulation and maintenance - design of enclosures, insulating materials and installation/maintenance rules.
• Type tests and conformity - testing regimes and normative references for demonstrating compliance.
• Notable editorial/technical changes: recognition that fuel‑carrying components qualified to leakage (soundness) standards need not be treated as flammable leak sources; a new annex on small power systems; and numerous clarifications.

Practical applications

• Ensures safe design, manufacture, installation and commissioning of stationary fuel cell systems for buildings, microgrids, backup power and CHP installations.
• Guides development of product documentation, installation instructions, maintenance procedures and type testing programs.
• Provides a compliance framework for safety approvals, CE marking (where applicable in Europe) and integration with other electrotechnical standards.

Who should use this standard

• Fuel cell manufacturers and system integrators
• Product designers and R&D teams
• Safety and compliance engineers
• Test laboratories and certification bodies
• Installers, facilities managers and specifiers
• Regulators and standards committees

Related standards

EN IEC 62282-3-100 cross‑references many IEC/ISO standards on pressure equipment, EMC, functional safety (IEC 61508/61511), explosion protection and gas detection. Use it alongside national regulations and harmonized IEC/EN documents for complete compliance.

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-2020
Nadomešča:
SIST EN 62282-3-100:2012
Tehnologije gorivnih celic - 3-100. del: Nepremični elektroenergetski sistemi z
gorivnimi celicami - Varnost (IEC 62282-3-100:2019)
Fuel cell technologies - Part 3-100: Stationary fuel cell power systems - Safety (IEC
62282-3-100:2019)
Brennstoffzellentechnologien - Teil 3-100: Stationäre Brennstoffzellen-Energiesysteme -
Sicherheit (IEC 62282-3-100:2019)
Technologies des piles à combustible - Partie 3-100: Systèmes à piles à combustible
stationnaires - Sécurité (IEC 62282-3-100:2019)
Ta slovenski standard je istoveten z: EN IEC 62282-3-100:2020
ICS:
27.070 Gorilne celice Fuel cells
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 62282-3-100

NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2020
ICS 27.070 Supersedes EN 62282-3-100:2012 and all of its
amendments and corrigenda (if any)
English Version
Fuel cell technologies - Part 3-100: Stationary fuel cell power
systems - Safety
(IEC 62282-3-100:2019)
Technologies des piles à combustible - Partie 3-100: Brennstoffzellentechnologien - Teil 3-100: Stationäre
Systèmes à piles à combustible stationnaires - Sécurité Brennstoffzellen-Energiesysteme - Sicherheit
(IEC 62282-3-100:2019) (IEC 62282-3-100:2019)
This European Standard was approved by CENELEC on 2019-03-19. 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 CEN-CENELEC
Management Centre 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 CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62282-3-100:2020 E

European foreword
The text of document 105/695/FDIS, future edition 2 of IEC 62282-3-100, prepared by IEC/TC 105
"Fuel cell technologies" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC
as EN IEC 62282-3-100:2020.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2020-10-10
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-04-10
document have to be withdrawn
This document supersedes EN 62282-3-100:2012 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Endorsement notice
The text of the International Standard IEC 62282-3-100:2019 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 60079-20-1 NOTE Harmonized as EN 60079-20-1
IEC 60812 NOTE Harmonized as EN IEC 60812
IEC 61025 NOTE Harmonized as EN 61025

Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
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.
NOTE 1  Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60079-2 -  Explosive atmospheres - Part 2: EN 60079-2 -
Equipment protection by pressurized
enclosure "p"
IEC 60079-10-1 -  Explosive atmospheres -- Part 10-1: EN 60079-10-1 -
Classification of areas - Explosive gas
atmospheres
IEC 60079-29-1 -  Explosive atmospheres - Part 29-1: Gas EN 60079-29-1 -
(mod) detectors - Performance requirements of
detectors for flammable gases
IEC 60204-1 (mod) -  Safety of machinery - Electrical equipment EN 60204-1 -
of machines - Part 1: General requirements
IEC 60335-1 (mod) 2010 Household and similar electrical appliances EN 60335-1 2012
- Safety - Part 1: General requirements
+A11 2014
+A12 2017
+AC 2014
+A14 2019
+A13 2017
+prA15
+prA17
+prA16
IEC 60335-2-51 -  - -
IEC 60529 -  Classification of degrees of protection HD 365 S3 -
provided by enclosures
IEC 60730-1 (mod) -  Automatic electrical controls - Part 1: EN 60730-1 -
General requirements
+prA
IEC 60730-2-5 -  Automatic electrical controls - Part 2-5: EN 60730-2-5 -
(mod) Particular requirements for automatic
electrical burner control systems
IEC 60730-2-6 -  Automatic electrical controls - Part 2-6: EN 60730-2-6 -
Particular requirements for automatic
electrical pressure sensing controls
including mechanical requirements
IEC 60730-2-9 -  Automatic electrical controls - Part 2-9: EN IEC 60730-2-9 -
Particular requirements for temperature
sensing control
Publication Year Title EN/HD Year
IEC 60950-1 (mod) -  Information technology equipment - Safety EN 60950-1 -
- Part 1: General requirements
+A12 2011
+AC 2011
+prA13
+A11 2009
+AC
IEC 61000-3-2 -  EN IEC 61000-3-2 -
IEC 61000-3-3 -  Electromagnetic compatibility (EMC) - PartE N 61000-3-3 -
3-3: Limits - Limitation of voltage changes,
voltage fluctuations and flicker in public
low-voltage supply systems, for equipment
with rated current ≤16 A per phase and
not subject to conditional connection
IEC 61000-3-11 -  EN IEC 61000-3-11 -
IEC 61000-6-1 -  Electromagnetic compatibility (EMC) - PartEN IEC 61000-6-1 -
6-1: Generic standards - Immunity
standard for residential, commercial and
light-industrial environments
+prA
IEC 61000-6-2 -  Electromagnetic compatibility (EMC) - PartEN IEC 61000-6-2 -
6-2: Generic standards - Immunity
standard for industrial environments
+prA
IEC 61000-6-2 -  Electromagnetic compatibility (EMC) - PartEN IEC 61000-6-2 -
6-2: Generic standards - Immunity
standard for industrial environments
+prA
IEC 61000-6-4 -  EN IEC 61000-6-4 -
IEC 61508 series Functional safety of EN 61508 series
electrical/electronic/programmable
electronic safety-related systems - Part 1:
General requirements (see href="http://www.iec.ch/functionalsafety">F
unctional Safety and IEC 61508)
IEC 61511-1 -  Functional safety - Safety instrumented EN 61511-1 -
systems for the process industry sector -
Part 1: Framework, definitions, system,
hardware and application programming
requirements
IEC 62040-1-1 -  EN 62040-1-1 -
+EN 62040-1-2004
1:2003/corrigendum
Aug. 2004
IEC 62061 -  Safety of machinery - Functional safety of EN 62061 -
safety-related electrical, electronic and
programmable electronic control systems
+EN 2010
62061:2005/corrige
ndum Feb. 2010
IEC 62368-1 -  Audio/video, information and EN IEC 62368-1 -
communication technology equipment -
Part 1: Safety requirements
+prAB
ISO 3864-2 -  Graphical symbols_- Safety colours and - -
safety signs_- Part_2: Design principles for
product safety labels
Publication Year Title EN/HD Year
ISO 4413 -  Hydraulic fluid power_- General rules and EN ISO 4413 -
safety requirements for systems and their
components
ISO 4414 -  Pneumatic fluid power_- General rules and EN ISO 4414 -
safety requirements for systems and their
components
ISO 5388 -  Stationary air compressors - Safety rules - -
and code of practice
ISO 10439 series  EN ISO 10439 series
ISO 10440-1 -  EN ISO 10440-1 -
ISO 10440-2 -  Petroleum and natural gas industries - EN ISO 10440-2 -
Rotary-type positive-displacement
compressors -- Part 2: Packaged air
compressors (oil-free)
ISO 10442 -  Petroleum, chemical and gas service EN ISO 10442 -
industries - Packaged, integrally geared
centrifugal air compressors
ISO 12499 -  Industrial fans -- Mechanical safety of fans EN ISO 12499 -
-- Guarding
ISO 13631 -  Petroleum and natural gas industries - EN ISO 13631 -
Packaged reciprocating gas compressors
ISO 13707 -  Petroleum and natural gas industries_- - -
Reciprocating compressors
ISO 13709 -  Centrifugal pumps for petroleum, EN ISO 13709 -
petrochemical and natural gas industries
ISO 13849-1 -  Safety of machinery - Safety-related parts EN ISO 13849-1 -
of control systems - Part 1: General
principles for design
ISO 13850 -  Safety of machinery - Emergency stop EN ISO 13850 -
function - Principles for design
ISO 14847 -  Rotary positive displacement pumps - EN ISO 14847 -
Technical requirements
ISO 15649 -  Petroleum and natural gas industries_- - -
Piping
ISO 16111 -  Transportable gas storage devices -- - -
Hydrogen absorbed in reversible metal
hydride
ISO 23550 -  Safety and control devices for gas burners - -
and gas-burning appliances_- General
requirements
ISO 23551-1 -  Safety and control devices for gas burners - -
and gas-burning appliances_- Particular
requirements_- Part_1: Automatic valves
ISO 23553-1 -  EN ISO 23553-1 -
ISO 26142 -  Hydrogen detection apparatus -- Stationary - -
applications
IEC/TS 61000-3-4 -  Electromagnetic compatibility (EMC) - Part- -
3-4: Limits - Limitation of emission of
harmonic currents in low-voltage power
supply systems for equipment with rated
current greater than 16 A
IEC/TS 61000-3-5 -  Electromagnetic compatibility (EMC) - Part- -
3-5: Limits - Limitation of voltage
fluctuations and flicker in low-voltage
power supply systems for equipment with
rated current greater than 75 A
Publication Year Title EN/HD Year
IEC/IEEE 60079-30--  Explosive atmospheres - Part 30-1: EN 60079-30-1 -
1 (mod) Electrical resistance trace heating -
General and testing requirements

IEC 62282-3-100 ®
Edition 2.0 2019-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Fuel cell technologies –
Part 3-100: Stationary fuel cell power systems – Safety

Technologies des piles à combustible –

Partie 3-100: Systèmes à piles à combustible stationnaires – Sécurité

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 27.070 ISBN 978-2-8322-6256-6

– 2 – IEC 62282-3-100:2019 © IEC 2019
CONTENTS
FOREWORD . 6
INTRODUCTION . 8
1 Scope . 10
2 Normative references . 11
3 Terms and definitions . 13
4 Safety requirements and protective measures . 19
4.1 General safety strategy . 19
4.2 Physical environment and operating conditions . 20
4.2.1 General . 20
4.2.2 Electrical power input . 20
4.2.3 Physical environment . 20
4.2.4 Fuel input . 20
4.2.5 Water input . 20
4.2.6 Vibration, shock and bump . 20
4.2.7 Handling, transportation, and storage . 20
4.2.8 System purging . 21
4.3 Selection of materials . 21
4.4 General requirements . 22
4.5 Pressure equipment and piping . 24
4.5.1 Pressure equipment . 24
4.5.2 Piping systems . 24
4.5.3 Flue gas venting systems . 25
4.5.4 Gas-conveying parts . 25
4.6 Protection against fire or explosion hazards . 26
4.6.1 Prevention against fire and explosion hazards in fuel cell power

systems provided with enclosures . 26
4.6.2 Prevention of fire and explosion hazards in burners . 28
4.6.3 Prevention of fire and explosion hazards in catalytic fuel oxidation
systems (catalytic burners) . 30
4.7 Electrical safety . 31
4.8 Electromagnetic compatibility (EMC) . 31
4.9 Control systems and protective components . 31
4.9.1 General requirements . 31
4.9.2 Control systems . 32
4.9.3 Protective components . 34
4.10 Pneumatic and hydraulic powered equipment . 35
4.11 Valves. 35
4.11.1 Shut-off valves. 35
4.11.2 Fuel valves . 35
4.12 Rotating equipment . 36
4.12.1 General requirements . 36
4.12.2 Compressors . 36
4.12.3 Pumps . 37
4.13 Enclosures . 37
4.14 Thermal insulating materials . 38
4.15 Utilities . 38

IEC 62282-3-100:2019 © IEC 2019 – 3 –
4.15.1 General requirements . 38
4.15.2 Water supply . 38
4.15.3 Fuel gas supply . 38
4.15.4 Electrical connections . 38
4.16 Installation and maintenance. 40
4.16.1 Installation . 40
4.16.2 Maintenance . 40
4.17 Equivalent safety . 40
5 Type tests . 41
5.1 General requirements . 41
5.1.1 General . 41
5.1.2 Operating parameters for tests . 41
5.2 Test fuels . 42
5.3 Basic test arrangements . 43
5.4 Leakage tests . 43
5.4.1 General . 43
5.4.2 Pneumatic leakage tests . 43
5.4.3 Hydrostatic leakage tests . 47
5.5 Strength tests . 47
5.5.1 General . 47
5.5.2 Pneumatic strength tests . 47
5.5.3 Hydrostatic strength test . 49
5.6 Normal operation type test . 49
5.7 Electrical overload test . 50
5.8 Shutdown parameters . 50
5.9 Burner operating characteristics tests . 50
5.9.1 General . 50
5.9.2 General testing . 50
5.9.3 Limit testing . 50
5.10 Automatic control of burners and catalytic oxidation reactors . 51
5.10.1 General . 51
5.10.2 Automatic ignition control burners . 51
5.10.3 Automated control of catalytic oxidation reactors . 53
5.11 Exhaust gas temperature test . 54
5.12 Surface and component temperatures . 54
5.13 Wind tests . 55
5.13.1 General . 55
5.13.2 Wind source calibration procedure for winds directed perpendicular to
the wall . 55
5.13.3 Verification of operation of outdoor fuel cell power systems under wind
conditions . 56
5.13.4 Verification of operation of indoor fuel cell power systems vented
horizontally through an outside wall . 57
5.13.5 Carbon monoxide (CO) and flammable gas components emissions
under wind – Indoor units . 59
5.13.6 Carbon monoxide (CO) and flammable gas components emissions
under wind – Outdoor units . 59
5.14 Rain test . 60
5.14.1 Outdoor units . 60
5.14.2 Indoor units supplied with horizontal venting hardware . 60

– 4 – IEC 62282-3-100:2019 © IEC 2019
5.14.3 Test method . 60
5.15 Emissions . 60
5.15.1 General . 60
5.15.2 Carbon monoxide (CO) and flammable gas emissions . 60
5.15.3 Normal conditions . 61
5.16 Blocked condensate line test . 61
5.17 Condensate discharge test . 61
5.18 Electrical safety tests . 62
5.19 EMC test . 62
5.20 Venting system leakage test . 62
5.21 Leakage tests (repeat) . 63
6 Routine tests . 63
6.1 General requirements . 63
6.2 Leakage test . 63
6.3 Dielectric strength test . 64
6.4 Burner operation test . 64
7 Marking, labelling and packaging . 64
7.1 General requirements . 64
7.2 Fuel cell power system marking . 64
7.3 Marking of components . 65
7.4 Technical documentation . 65
7.4.1 General . 65
7.4.2 Installation manual . 66
7.4.3 User’s information manual . 66
7.4.4 Operating manual . 69
7.4.5 Maintenance manual . 70
Annex A (informative) Significant hazards, hazardous situations and events dealt with
in this document . 71
Annex B (informative) Carburization and material compatibility for hydrogen service . 73
B.1 Carburization . 73
B.2 Material compatibility for hydrogen service. 73
B.2.1 General . 73
B.2.2 Metals and metallic materials . 73
B.2.3 Polymers, elastomers, and other non-metallic materials. 75
B.2.4 Reference documents . 75
Annex C (normative) Normative replacement subclauses for small fuel cell power
systems with rated electrical output less than 10 kW, and maximum pressure of less
than 0,1 MPa (gauge) for fuel and oxidant passages . 79
Bibliography . 81

Figure 1 – Typical stationary fuel cell power system . 8
Figure 2 – Minimum test pressures . 49
Figure 3 – Test wall with static pressure ports and vent terminal locations . 56
Figure 4 – Vent test wall . 57
Figure 5 – Piezo ring and details of typical construction . 58
Figure 6 – Safety precautions for odorized gas-fuelled systems . 67
Figure 7 – Safety precautions for odorant-free gas fuelled systems . 68
Figure 8 – Safety precautions for liquid fuelled systems . 68

IEC 62282-3-100:2019 © IEC 2019 – 5 –
Table 1 – Allowable surface temperature rises . 23
Table 2 – Leakage test requirements . 46
Table 3 – Ultimate strength test requirements . 48
Table 4 – Wind calibration . 56
Table A.1 – Hazardous situations and events. 71

– 6 – IEC 62282-3-100:2019 © IEC 2019
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FUEL CELL TECHNOLOGIES –
Part 3-100: Stationary fuel cell power systems – Safety

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 62282-3-100 has been prepared by IEC technical committee 105:
Fuel cell technologies.
This second edition cancels and replaces the first edition published in 2012. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
recognition that fuel carrying components qualified to leakage standards (soundness)
need not be considered as potential flammable leak sources;
new Annex C for small power systems; and
clarifications for numerous requirements and tests.

IEC 62282-3-100:2019 © IEC 2019 – 7 –
The text of this International Standard is based on the following documents:
FDIS Report on voting
105/695/FDIS 105/705/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 62282 series, published under the general title Fuel cell
technologies, can be found on the IEC website.
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.
– 8 – IEC 62282-3-100:2019 © IEC 2019
INTRODUCTION
A typical stationary fuel cell power system is shown in Figure 1.
System boundary
Power inputs:
electrical, thermal,
mechanical
Recovered heat
Thermal
management
system
Waste heat
Fuel
Fuel
processing
Fuel
Useable power
system
cell stack
electrical
or Power
module conditioning
system
Oxidant
Oxidant
processing Water
system treatment
Internal power
Discharge
system
needs
water
Ventilation
Exhaust gases,
Ventilation
Inert gas
ventilation
system
Automatic Onboard
Water
control energy
system storage
EMI:
EMD:
noise,
vibration,
vibration
wind, rain,
temperature,
etc.
IEC
Figure 1 – Typical stationary fuel cell power system
The overall design of the power system anticipated by this document forms an assembly of
integrated systems, as necessary, intended to perform designated functions, as follows.
• Fuel processing system – System of chemical and/or physical processing equipment plus
associated heat exchangers and controls required to prepare, and if necessary,
pressurize, the fuel for utilization within a fuel cell power system.
• Oxidant processing system – System that meters, conditions, processes and may
pressurize the incoming supply for use within the fuel cell power system.
• Thermal management system – System that provides heating or cooling and heat rejection
to maintain the fuel cell power system in the operating temperature range, and may
provide for the recovery of excess heat and assist in heating the power train during start-
up.
• Water treatment system – System that provides all the necessary purification treatment of
the recovered or added water for use within the fuel cell power system.
• Power conditioning system – Equipment that is used to adapt the electrical energy
produced by the fuel cell stack(s) to application requirements as specified by the
manufacturer.
• Automatic control system – System(s) that is composed of sensors, actuators, valves,
switches and logic components that maintain the fuel cell power system parameters within
the manufacturer’s specified limits including moving to safe states without manual
intervention.
• Ventilation system – System that provides air through mechanical or natural means to the
fuel cell power system’s enclosure.
• Fuel cell modules – Equipment assembly of one or more fuel cell stacks which
electrochemically converts chemical energy to electric energy and thermal energy
intended to be integrated into a power generation system.

IEC 62282-3-100:2019 © IEC 2019 – 9 –
• Fuel cell stack – Equipment assembly of cells, separators, cooling plates, manifolds and a
support structure that electrochemically converts, typically, hydrogen rich gas and air
reactants to DC power, heat and other reactant bi-products.
• Onboard energy storage – System of internal electric energy storage devices intended to
aid or complement the fuel cell module in providing power to internal or external loads.

– 10 – IEC 62282-3-100:2019 © IEC 2019
FUEL CELL TECHNOLOGIES –
Part 3-100: Stationary fuel cell power systems – Safety

1 Scope
This part of IEC 62282 applies to stationary packaged, self-contained fuel cell power systems
or fuel cell power systems comprised of factory matched packages of integrated systems
which generate electricity through electrochemical reactions.
This document applies to systems
intended for electrical connection to mains direct, or with a transfer switch, or to a stand-
alone power distribution system;
intended to provide AC or DC power;
with or without the ability to recover useful heat;
intended for operation on the following input fuels:
natural gas and other methane rich gases derived from renewable (biomass) or fossil
fuel sources, for example, landfill gas, digester gas, coal mine gas;
fuels derived from oil refining, for example, diesel, gasoline, kerosene, liquefied
petroleum gases such as propane and butane;
alcohols, esters, ethers, aldehydes, ketones, Fischer-Tropsch liquids and other
suitable hydrogen-rich organic compounds derived from renewable (biomass) or fossil
fuel sources, for example, methanol, ethanol, di-methyl ether, biodiesel;
hydrogen, gaseous mixtures containing hydrogen gas, for example, synthesis gas,
town gas.
This document does not cover:
• micro fuel cell power systems;
• portable fuel cell power systems;
• propulsion fuel cell power systems.
NOTE For special applications such as “marine auxiliary power”, additional requirements can be given by the
relevant marine ship register standard.
This document is applicable to stationary fuel cell power systems intended for indoor and
outdoor commercial, industrial and residential use in non-hazardous areas.
This document contemplates all significant hazards, hazardous situations and events, with the
exception of those associated with environmental compatibility (installation conditions),
relevant to fuel cell power systems, when they are used as intended and under the conditions
foreseen by the manufacturer.
This document deals with conditions that can yield hazards on the one hand to persons, and
on the other to damage outside the fuel cell power system only. Protection against damage to
the fuel cell power system internals is not addressed in this document, provided it does not
lead to hazards outside the fuel cell power system.

IEC 62282-3-100:2019 © IEC 2019 – 11 –
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 60079-2, Explosive atmospheres – Part 2: Equipment protection by pressurized
enclosure "p"
IEC 60079-10-1, Explosive atmospheres – Part 10-1: Classification of areas – Explosive gas
atmospheres
IEC 60079-29-1, Explosive atmospheres – Part 29-1: Gas detectors – Performance
requirements of detectors for flammable gases
IEC/IEEE 60079-30-1, Explosive atmospheres – Part 30-1: Electrical resistance trace heating
– General and testing requirements
IEC 60204-1, Safety of machinery – Electrical equipment of machines – Part 1: General
requirements
IEC 60335-1:2016, Household and similar electrical appliances – Safety – Part 1: General
requirements
IEC 60335-2-51, Household and similar electrical appliances – Safety – Part 2-51: Particular
requirements for stationary circulation pumps for heating and service water installations
IEC 60529, Degrees of protection provided by enclosures (IP Code)
IEC 60730-1, Automatic electrical controls – Part 1: General requirements
IEC 60730-2-5, Automatic electrical controls – Part 2-5: Particular requirements for automatic
electrical burner control systems
IEC 60730-2-6, Automatic electrical controls – Part 2-6: Particular requirements for automatic
electrical pressure sensing controls including mechanical requirements
IEC 60730-2-9, Automatic electrical controls – Part 2-9: Particular requirements for
temperature sensing control
IEC 60950-1, Information technology equipment – Safety – Part 1: General requirements
IEC 61000-3-2, Electromagnetic compatibility (EMC) – Part 3-2: Limits – Limits for harmonic
current emissions (equipment input current ≤16 A per phase)
IEC 61000-3-3, Electromagnetic compatibility (EMC) – Part 3-3: Limits – Limitation of voltage
changes, voltage fluctuations and flicker in public low-voltage supply systems, for equipment
with rated current ≤16 A per phase and not subject to conditional connection
IEC TS 61000-3-4, Electromagnetic compatibility (EMC) – Part 3-4: Limits – Limitation of
emission of harmonic currents in low-voltage power supply systems for equipment with rated
current greater than 16 A
– 12 – IEC 62282-3-100:2019 © IEC 2019
IEC TS 61000-3-5, Electromagnetic compatibility (EMC) – Part 3-5: Limits – Limitation of
voltage fluctuations and flicker in low-voltage power supply systems for equipment with rated
current greater than 75 A
IEC 61000-3-11, Electromagnetic compatibility (EMC) – Part 3-11: Limits – Limitation of
voltage changes, voltage fluctuations and flicke
...