IEC 62282-5-1:2012

Fuel cell technologies - Part 5-1: Portable fuel cell power systems - Safety

IEC 62282-5-1:2012 covers construction, marking and test requirements for portable fuel cell power systems intended to produce electrical power. Applies to a.c. and d.c. type portable fuel cell power systems, with a rated output voltage not exceeding 600 V a.c., or 850 V d.c. for indoor and outdoor use. The major technical changes with respect to the first edition are as follows:
- referencing an alternative test method; reduction of the limit on flammable atmospheres;
- consideration of additional effluents and criteria to establish if a system is suitable for indoor or outdoor operation;
- revision of specific criteria for oxygen detector sensor performance;
- new test method and new drop heights; addition of a table giving limits on emission of effluents.
Keywords: fuel cell

Technologies des piles à combustible - Partie 5-1: Systèmes à piles à combustible portables - Sécurité

l'IEC 62282-5-1:2012 couvre les exigences de construction, de marquage et d'essai applicables aux systèmes portatifs à pile à combustible destinés à produire de l'énergie électrique. La présente norme s'applique aux systèmes à piles à combustible portables à courant alternatif et à courant continu dont la tension de sortie assignée ne dépasse pas 600 V en courant alternatif ou 850 V en courant continu, et qui sont destinés à un usage à l'intérieur et à l'extérieur. Les modifications techniques majeures par rapport à la première édition sont les suivantes:
- faisant référence à une autre méthode d'essai en réponse à un commentaire a été mis à jour
- la prise en compte des effluents supplémentaires et des critères permettant d'établir si un système convient à une utilisation à l'intérieur ou à l'extérieur
- révision de critères spécifiques pour la performance des détecteurs d'oxygène;
- nouvelle méthode d'essai et nouvelles hauteurs de chute; ajout d'un tableau limitant les émissions d'effluents.
mots clés : pile à combustible

General Information

• Status: Replaced
• Publication Date: 17-Sep-2012
• ICS: 27.070 - Fuel cells
• Technical Committee: TC 105 - Fuel cell technologies
• Drafting Committee: MT 401 - TC 105/MT 401
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 12-Apr-2018

Relations

• Replaced By: IEC 62282-5-100:2018 - Fuel cell technologies - Part 5-100: Portable fuel cell power systems - Safety
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62282-5-1


®


Edition 2.0 2012-09



INTERNATIONAL



STANDARD






Fuel cell technologies –
Part 5-1: Portable fuel cell power systems – Safety



IEC 62282-5-1:2012(E)

---------------------- Page: 1 ----------------------
THIS PUBLICATION IS COPYRIGHT PROTECTED


Copyright © 2012 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
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IEC 62282-5-1



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Edition 2.0 2012-09







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Fuel cell technologies –

Part 5-1: Portable fuel cell power systems – Safety




























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ICS 27.070 ISBN 978-2-83220-320-0



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– 2 – 62282-5-1 © IEC:2012(E)



CONTENTS

FOREWORD . 4


1 Scope . 6

2 Normative references . 8

3 Terms and definitions . 11


4 Design and construction requirements . 16

4.1 Physical environment and operating conditions . 16

4.2 Material compatibility . 16

4.3 Protection against mechanical hazards . 17
4.4 Protection against toxicity of fuels and fuel feedstocks . 18
4.5 Protection against explosion hazards . 18
4.6 Protection against electric shock . 19
4.7 Selection of electrical components and equipment . 21
4.8 Protection against fire hazard . 24
4.9 Protection against temperature hazards . 26
4.10 Protection against electromagnetic disturbances . 26
4.11 Hazard and risk assessment . 27
4.12 Safety control circuits . 27
4.13 Protection against oxygen depletion . 27
4.14 Emission of effluents . 28
4.15 Fuel supply . 28
4.16 Fuel processing systems . 29
4.17 Enclosures . 29
4.18 Battery supplies. 29
4.19 Pressure vessels and piping . 30
4.20 Hoses . 31
4.21 Automatic shut-off valves . 31
4.22 Regulators . 31
4.23 Process control equipment . 32
4.24 Filters . 32
4.25 Motors . 32
4.26 Fuel pumps . 32
5 Instructions . 32

5.1 Operation and maintenance manual . 32
5.2 User's information manual . 34
6 Labelling . 36
6.1 General labelling requirements . 36
6.2 Marking . 36
6.3 Warnings . 37
7 Type tests . 38
7.1 General requirements for type tests . 38
7.2 Test sequence . 38
7.3 Leakage test for liquid fuelled systems . 38
7.4 Flammable fuel gas concentration test . 39
7.5 Surface temperatures . 39
7.6 Component temperatures . 39
7.7 Wall, floor and ceiling temperatures. 40

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62282-5-1 © IEC:2012(E) – 3 –


7.8 Dielectric strength . 40

7.9 Humidity test . 40

7.10 Leakage current at operating temperature . 41

7.11 Abnormal operation testing . 41

7.12 Strain relief testing . 42

7.13 Insulating material . 42

7.14 Earthing test . 42

7.15 Tank pressure test. 42

7.16 Stability . 43

7.17 Impact test . 43

7.18 Free drop test . 44
7.19 Adhesion and legibility of marking materials . 45
7.20 Flammable gas accumulation . 45
7.21 Oxygen depletion test . 46
7.22 Emission of effluents tests . 47
7.23 Alternative carbon dioxide emission test . 52
7.24 Wind test . 53
7.25 Strength test. 54
7.26 Stress relief test . 55
7.27 Fuel supply securement test . 55
7.28 Shut-down parameters . 55
7.29 Non-metallic tubing conductivity test . 56
7.30 Non-metallic tubing test for accumulation of static electricity . 56
8 Routine tests . 57
8.1 Routine test requirements . 57
8.2 Gas leakage test . 57
8.3 Liquid leakage test . 57
8.4 Dielectric strength test . 57
8.5 Routine test records . 57
Annex A (normative) Ventilation rates for batteries . 58
Annex B (informative) Shock and vibration limits for high shock environments . 59
Annex C (normative) Uncertainty of measurements . 61
Bibliography . 62


Figure 1 – Portable fuel cell power systems . 7
Figure 2 – Articulated probe . 45
Figure 3 – Operational emission rate testing apparatus . 48

Table 1 – Emission limits . 51
Table 2 – Occupational exposure limits . 52
Table B.1 – Vertical axis vibration conditions . 59
Table B.2 – Longitudinal and lateral axes vibration conditions . 60
Table C.1 – Measurements and their maximum uncertainties . 61

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INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________




FUEL CELL TECHNOLOGIES –



Part 5-1: Portable 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
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Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
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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
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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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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 62282-5-1 has been prepared by IEC technical committee 105:
Fuel cell technologies.
This second edition cancels and replaces the first edition, published in 2007, and constitutes
a technical revision.
The major technical changes with respect to the first edition are as follows:
• IEC normative references and definitions have been updated (e.g., hazardous locations,
micro fuel cell power systems, transportable equipment, etc.);
• subclause 4.2.2 has been updated referencing an alternative test method in response to a
comment;
• the limit on flammable atmospheres has been reduced from 50 % of LFL to 25 % of LFL in
4.5.4 and in 7.20;
• subclause 4.14 and the corresponding tests in 7.22 have been updated to include more
effluents and criteria to establish if a system is suitable for indoor or outdoor operation;

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62282-5-1 © IEC:2012(E) – 5 –


• specific criteria for oxygen detector sensor performance requirements have been revised

in 7.21;

• subclause 7.18 has been updated with a new test method and new drop heights in

response to comments;


• Table 1 has been added giving limits on emission of effluents using limits drawn from the

micro fuel cell power system standard.

The text of this standard is based on the following documents:


FDIS Report on voting

105/396/FDIS 105/404/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.
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 publication will remain unchanged until
the stability 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.
A bilingual version may be issued at a later date.

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FUEL CELL TECHNOLOGIES –



Part 5-1: Portable fuel cell power systems – Safety








1 Scope


This part of IEC 62282 covers construction, marking and test requirements for portable fuel

cell power systems. These fuel cell systems are movable and not fastened or otherwise
secured to a specific location. The purpose of the portable fuel cell power system is to
produce electrical power.
This standard applies to a.c. and d.c. type portable fuel cell power systems, with a rated
output voltage not exceeding 600 V a.c., or 850 V d.c. for indoor and outdoor use. These
portable fuel cell power systems are not to be used in hazardous locations as defined by
IEV 426-03-01 unless additional protective measures are added in accordance with
IEC 60079-0.
This standard does not apply to portable fuel cell power systems that are
a) permanently connected (hard wired) to the electrical distribution system,
b) permanently connected to a utility fuel distribution system,
c) exporting power to the grid,
d) for propulsion of road vehicles,
e) intended to be used on board passenger aircraft.
Fuel cells that provide battery charging for hybrid vehicles where the battery provides power
and energy for propulsion of the vehicle are not included in the scope of this standard
The following fuels and fuel feedstocks are considered within the scope of this standard:
• natural gas;
• liquefied petroleum gas, such as propane and butane;
• liquid alcohols, for example methanol, ethanol;
• gasoline;
• diesel;

• kerosene;
• hydrogen;
• metals (e.g. Mg, Al or Zn) or metal alloys immersed in electrolyte (e.g. aqueous solutions
of salts or alkali) in air or oxygen;
• chemical hydrides.
This standard does not preclude the use of similar fuels or oxidants from sources other than
air provided the unique hazards are addressed through additional requirements.

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62282-5-1 © IEC:2012(E) – 7 –










Power inputs
Cabinet
electrical thermal



Thermal
management


system
Waste heat
Fuel

Fuel supply
processing

system

system

Power
Fuel
conditioning
cell

system
module Useable power

Oxidant
electrical

Oxidant processing
system
Water
Internal power
treatment
Discharge
needs
system
Ventilation water
Inert gas
Ventilation
Exhaust gases,
Onboard
Water Automatic
system
ventilation
energy
control
storage
system
1 2
EMD EMI

Vibration, Noise,
wind, rain,
vibration
temperature
etc.
IEC  285/07

Key
1 EMD electromagnetic disturbance
2 EMI electromagnetic interference
Figure 1 – Portable fuel cell power systems
The overall design of a portable fuel cell power system anticipated by this standard shall form
an assembly of some or all of the following systems (see Figure 1), integrated as necessary,
to perform designated functions, as follows:
Fuel processing system – chemical processing equipment including any associated heat
exchangers and controls required to convert input fuel to a composition suitable for the fuel
cell stack.
Oxidant processing system – subsystem that meters, conditions, processes and may
pressurize the incoming oxidant supply for use within the fuel cell power system.
Thermal management system – subsystem intended to provide cooling and heat rejection in

order to maintain thermal equilibrium within the fuel cell power system, and, if necessary, to
provide for the recovery and utilization of excess heat and to assist in heating the fuel cell
power systems during start-up.
Power conditioning system – equipment which is used to change the magnitude or
waveform of the voltage, or otherwise alter or regulate the output of a power source.
Automatic control system – assembly of sensors, actuators, valves, switches and logic
components (including process controllers) that maintains the fuel cell power system
parameters within the manufacturer’s specified limits without manual intervention.
Fuel cell module – assembly, including a fuel cell stack(s), which electrochemically converts
chemical energy to electric energy and thermal energy intended to be integrated into a power
generation system.

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– 8 – 62282-5-1 © IEC:2012(E)


Fuel supply system – either integral to the portable fuel cell power system or supplied

through a removable and refillable container assembly.


Onboard energy storage system – an internal energy source intended to aid or complement

the fuel cell module in providing power to internal or external loads.


Ventilation systems – subsystem of the fuel cell power system that provides, by mechanical

means, air to its cabinet.


Water treatment systems – provides for treatment and purification of recovered or added

water for use within the portable fuel cell power system.

These requirements are not intended to prevent the design and construction of a portable fuel
cell power system not specifically described in this standard, provided that such alternatives
have been considered and equivalent testing yields equivalent safety performance to that
prescribed by this standard. In considering alternative designs or construction, this standard
may be used to evaluate the alternative materials or methods to be used as to their ability to
yield equivalent performance to that prescribed by this standard.
This standard does not cover requirements of pressurized or non-pressurized fuel supply
containers upstream of the appliance gaseous or liquid fuel supply connector that are not
integral to the portable fuel cell power system.
All pressures in this standard are considered to be gauge pressures, unless otherwise
specified.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60034 (all parts), Rotating electrical machines
IEC 60068-2-75, Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests
IEC 60079-0, Explosive atmospheres – Part 0: Equipment – General requirements
IEC 60079-2, Explosive atmospheres – Part 2: Equipment protection by pressurized

enclosures "p"
IEC 60079-10, Explosive atmospheres (all Parts 10) – Part 10: Classification of areas
IEC 60079-15, Explosive atmospheres – Part 15: Equipment protection by type of protection
"n"
IEC 60079-20-1, Explosive atmospheres – Part 20-1: Material characteristics for gas and
vapour classification – Test methods and data
IEC 60079-29-1, Explosive atmospheres – Part 29-1: Gas detectors – Performance
requirements of detectors for flammable gases
IEC 60086-4, Primary batteries – Part 4: Safety of lithium batteries

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62282-5-1 © IEC:2012(E) – 9 –


IEC 60204-1:2005, Safety of machinery – Electrical equipment of machines – Part 1: General

requirements


IEC 60216-4-1, Electrical insulating materials – Thermal endurance properties – Part 4-1:

Ageing ovens –Single-chamber ovens


IEC 60335-1:2010, Household and similar electrical appliances – Safety – Part 1: General

requirements


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

Protection against electric shock

IEC 60529, Degrees of protection provided by enclosures (IP Code)
IEC 60664-1, Insulation coordination for equipment within low-voltage systems – Part 1:
Principles, requirements and tests
IEC 60695-2-11, Fire hazard testing – Part 2-11: Glowing/hot-wire based test methods –
Glow-wire flammability test method for end-products
IEC 60695-2-13, Fire hazard testing – Part 2-13: Glowing/hot-wire based test methods –
Glow-wire ignition temperature (GWIT) test method for materials
IEC 60695-11-5, Fire hazard testing – Part 11-5: Test flames – Needle-flame test method –
Apparatus, confirmatory test arrangement and guidance
IEC 60695-11-10, Fire hazard testing – Part 11-10: Test flames – 50 W horizontal and vertical
flame test methods
IEC 60695-11-20, Fire hazard testing – Part 11-20: Test flames – 500 W flame test methods
IEC 60730-1:2010, Automatic electrical controls for household and similar use – Part 1:
General requirements
IEC 60730-2-5, Automatic electrical controls for household and similar use – Part 2-5:
Particular requirements for automatic electrical burner control
IEC 60730-2-17, Automatic electrical controls for household and similar use – Part 2-17:
Particular requirements for electrically operated gas valves, including mechanical
requirements

IEC 60812, Analysis techniques for system reliability – Procedure for failure mode and effects
analysis (FMEA)
IEC 60884-1, Plugs and socket-outlets for household and similar purposes – Part 1: General
requirements
IEC 60934, Circuit-breakers for equipment (CBE)
IEC 60950-1:2005, Information technology equipment – Safety – Part 1: General requirements
IEC 60990:1999, Methods of measurement of touch current and protective conductor current
IEC 61000-3-2, Electromagnetic compatibility (EMC) – Part 3-2: Limits – Limits for harmonic
currents emissions (equipment input current ≤ 16 A per phase)

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– 10 – 62282-5-1 © IEC:2012(E)


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 61000-6-1, Electromagnetic compatibility (EMC) – Part 6-1: Generic standards –

Immunity for residential, commercial and light-industrial environments


IEC 61000-6-2, Electromagnetic compatibility (EMC) – Part 6-2: Generic standards –

Immunity standards – Immunity for industrial environments


IEC 61000-6-3, Electromagnetic compatibility (EMC) – Part 6-3: Generic standards –

Emission standard for reside
...

IEC 62282-5-1
®

Edition 2.0 2012-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE


Fuel cell technologies –
Part 5-1: Portable fuel cell power systems – Safety

Technologies des piles à combustible –
Partie 5-1: Systèmes à piles à combustible portables – Sécurité

IEC 62282-5-1:2012-09(en-fr)

---------------------- Page: 1 ----------------------
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IEC 62282-5-1

®


Edition 2.0 2012-09




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE











Fuel cell technologies –

Part 5-1: Portable fuel cell power systems – Safety




Technologies des piles à combustible –

Partie 5-1: Systèmes à piles à combustible portables – Sécurité















INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE


INTERNATIONALE




ICS 27.070 ISBN 978-2-8322-5057-0




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

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

---------------------- Page: 3 ----------------------
– 2 – IEC 62282-5-1:2012 © IEC 2012
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 8
3 Terms and definitions . 11
4 Design and construction requirements . 16
4.1 Physical environment and operating conditions . 16
4.2 Material compatibility . 16
4.3 Protection against mechanical hazards . 17
4.4 Protection against toxicity of fuels and fuel feedstocks . 18
4.5 Protection against explosion hazards . 18
4.6 Protection against electric shock . 19
4.7 Selection of electrical components and equipment . 21
4.8 Protection against fire hazard . 24
4.9 Protection against temperature hazards . 26
4.10 Protection against electromagnetic disturbances . 26
4.11 Hazard and risk assessment . 27
4.12 Safety control circuits . 27
4.13 Protection against oxygen depletion . 27
4.14 Emission of effluents . 28
4.15 Fuel supply . 28
4.16 Fuel processing systems . 29
4.17 Enclosures . 29
4.18 Battery supplies. 29
4.19 Pressure vessels and piping . 30
4.20 Hoses . 31
4.21 Automatic shut-off valves . 31
4.22 Regulators . 31
4.23 Process control equipment . 32
4.24 Filters . 32
4.25 Motors . 32
4.26 Fuel pumps . 32
5 Instructions . 32
5.1 Operation and maintenance manual . 32
5.2 User's information manual . 34
6 Labelling . 36
6.1 General labelling requirements . 36
6.2 Marking . 36
6.3 Warnings . 37
7 Type tests . 38
7.1 General requirements for type tests . 38
7.2 Test sequence . 38
7.3 Leakage test for liquid fuelled systems . 38
7.4 Flammable fuel gas concentration test . 39
7.5 Surface temperatures . 39
7.6 Component temperatures . 39
7.7 Wall, floor and ceiling temperatures. 40

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IEC 62282-5-1:2012 © IEC 2012 – 3 –
7.8 Dielectric strength . 40
7.9 Humidity test . 40
7.10 Leakage current at operating temperature . 41
7.11 Abnormal operation testing . 41
7.12 Strain relief testing . 42
7.13 Insulating material . 42
7.14 Earthing test . 42
7.15 Tank pressure test. 42
7.16 Stability . 43
7.17 Impact test . 43
7.18 Free drop test . 44
7.19 Adhesion and legibility of marking materials . 45
7.20 Flammable gas accumulation . 45
7.21 Oxygen depletion test . 46
7.22 Emission of effluents tests . 47
7.23 Alternative carbon dioxide emission test . 52
7.24 Wind test . 53
7.25 Strength test. 54
7.26 Stress relief test . 55
7.27 Fuel supply securement test . 55
7.28 Shut-down parameters . 55
7.29 Non-metallic tubing conductivity test . 56
7.30 Non-metallic tubing test for accumulation of static electricity . 56
8 Routine tests . 57
8.1 Routine test requirements . 57
8.2 Gas leakage test . 57
8.3 Liquid leakage test . 57
8.4 Dielectric strength test . 57
8.5 Routine test records . 57
Annex A (normative) Ventilation rates for batteries . 58
Annex B (informative) Shock and vibration limits for high shock environments . 59
Annex C (normative) Uncertainty of measurements . 61
Bibliography . 62

Figure 1 – Portable fuel cell power systems . 7
Figure 2 – Articulated probe . 45
Figure 3 – Operational emission rate testing apparatus . 48

Table 1 – Emission limits . 51
Table 2 – Occupational exposure limits . 52
Table B.1 – Vertical axis vibration conditions . 59
Table B.2 – Longitudinal and lateral axes vibration conditions . 60
Table C.1 – Measurements and their maximum uncertainties . 61

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INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

FUEL CELL TECHNOLOGIES –

Part 5-1: Portable 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 62282-5-1 has been prepared by IEC technical committee 105:
Fuel cell technologies.
This bilingual version (2018-08) corresponds to the monolingual English version, published in
2012-09.
This second edition cancels and replaces the first edition, published in 2007, and constitutes
a technical revision.
The major technical changes with respect to the first edition are as follows:
• IEC normative references and definitions have been updated (e.g., hazardous locations,
micro fuel cell power systems, transportable equipment, etc.);
• subclause 4.2.2 has been updated referencing an alternative test method in response to a
comment;

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IEC 62282-5-1:2012 © IEC 2012 – 5 –
• the limit on flammable atmospheres has been reduced from 50 % of LFL to 25 % of LFL in
4.5.4 and in 7.20;
• subclause 4.14 and the corresponding tests in 7.22 have been updated to include more
effluents and criteria to establish if a system is suitable for indoor or outdoor operation;
• specific criteria for oxygen detector sensor performance requirements have been revised
in 7.21;
• subclause 7.18 has been updated with a new test method and new drop heights in
response to comments;
• Table 1 has been added giving limits on emission of effluents using limits drawn from the
micro fuel cell power system standard.
The text of this standard is based on the following documents:
FDIS Report on voting
105/396/FDIS 105/404/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.
The French version of this standard has not been voted upon.
This publication 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 publication will remain unchanged until
the stability 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.

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FUEL CELL TECHNOLOGIES –

Part 5-1: Portable fuel cell power systems – Safety



1 Scope
This part of IEC 62282 covers construction, marking and test requirements for portable fuel
cell power systems. These fuel cell systems are movable and not fastened or otherwise
secured to a specific location. The purpose of the portable fuel cell power system is to
produce electrical power.
This standard applies to a.c. and d.c. type portable fuel cell power systems, with a rated
output voltage not exceeding 600 V a.c., or 850 V d.c. for indoor and outdoor use. These
portable fuel cell power systems are not to be used in hazardous locations as defined by
IEV 426-03-01 unless additional protective measures are added in accordance with
IEC 60079-0.
This standard does not apply to portable fuel cell power systems that are
a) permanently connected (hard wired) to the electrical distribution system,
b) permanently connected to a utility fuel distribution system,
c) exporting power to the grid,
d) for propulsion of road vehicles,
e) intended to be used on board passenger aircraft.
Fuel cells that provide battery charging for hybrid vehicles where the battery provides power
and energy for propulsion of the vehicle are not included in the scope of this standard
The following fuels and fuel feedstocks are considered within the scope of this standard:
• natural gas;
• liquefied petroleum gas, such as propane and butane;
• liquid alcohols, for example methanol, ethanol;
• gasoline;
• diesel;
• kerosene;
• hydrogen;
• metals (e.g. Mg, Al or Zn) or metal alloys immersed in electrolyte (e.g. aqueous solutions
of salts or alkali) in air or oxygen;
• chemical hydrides.
This standard does not preclude the use of similar fuels or oxidants from sources other than
air provided the unique hazards are addressed through additional requirements.

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IEC 62282-5-1:2012 © IEC 2012 – 7 –





Power inputs
Cabinet
electrical thermal


Thermal
management


system
Waste heat
Fuel

Fuel supply
processing
system

system
Power
Fuel
conditioning
cell

system
module Useable power
Oxidant
electrical

Oxidant processing
system
Water
Internal power
treatment
Discharge
needs
system
Ventilation water
Inert gas
Ventilation
Exhaust gases,
Onboard
Water Automatic
system
ventilation
energy
control
storage
system
1 2
EMD EMI

Vibration, Noise,
wind, rain,
vibration
temperature
etc.
IEC  285/07

Key
1 EMD electromagnetic disturbance
2 EMI electromagnetic interference
Figure 1 – Portable fuel cell power systems
The overall design of a portable fuel cell power system anticipated by this standard shall form
an assembly of some or all of the following systems (see Figure 1), integrated as necessary,
to perform designated functions, as follows:
Fuel processing system – chemical processing equipment including any associated heat
exchangers and controls required to convert input fuel to a composition suitable for the fuel
cell stack.
Oxidant processing system – subsystem that meters, conditions, processes and may
pressurize the incoming oxidant supply for use within the fuel cell power system.
Thermal management system – subsystem intended to provide cooling and heat rejection in
order to maintain thermal equilibrium within the fuel cell power system, and, if necessary, to
provide for the recovery and utilization of excess heat and to assist in heating the fuel cell
power systems during start-up.
Power conditioning system – equipment which is used to change the magnitude or
waveform of the voltage, or otherwise alter or regulate the output of a power source.
Automatic control system – assembly of sensors, actuators, valves, switches and logic
components (including process controllers) that maintains the fuel cell power system
parameters within the manufacturer’s specified limits without manual intervention.
Fuel cell module – assembly, including a fuel cell stack(s), which electrochemically converts
chemical energy to electric energy and thermal energy intended to be integrated into a power
generation system.

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Fuel supply system – either integral to the portable fuel cell power system or supplied
through a removable and refillable container assembly.
Onboard energy storage system – an internal energy source intended to aid or complement
the fuel cell module in providing power to internal or external loads.
Ventilation systems – subsystem of the fuel cell power system that provides, by mechanical
means, air to its cabinet.
Water treatment systems – provides for treatment and purification of recovered or added
water for use within the portable fuel cell power system.
These requirements are not intended to prevent the design and construction of a portable fuel
cell power system not specifically described in this standard, provided that such alternatives
have been considered and equivalent testing yields equivalent safety performance to that
prescribed by this standard. In considering alternative designs or construction, this standard
may be used to evaluate the alternative materials or methods to be used as to their ability to
yield equivalent performance to that prescribed by this standard.
This standard does not cover requirements of pressurized or non-pressurized fuel supply
containers upstream of the appliance gaseous or liquid fuel supply connector that are not
integral to the portable fuel cell power system.
All pressures in this standard are considered to be gauge pressures, unless otherwise
specified.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60034 (all parts), Rotating electrical machines
IEC 60068-2-75, Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests
IEC 60079-0, Explosive atmospheres – Part 0: Equipment – General requirements
IEC 60079-2, Explosive atmospheres – Part 2: Equipment protection by pressurized
enclosures "p"
IEC 60079-10, Explosive atmospheres (all Parts 10) – Part 10: Classification of areas
IEC 60079-15, Explosive atmospheres – Part 15: Equipment protection by type of protection
"n"
IEC 60079-20-1, Explosive atmospheres – Part 20-1: Material
...