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

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.

General Information

Status
Published
Publication Date
11-Feb-2019
Current Stage
PPUB - Publication issued
Completion Date
12-Feb-2019
Ref Project

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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
IEC 62282-3-100:2019-02(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
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

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

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® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 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

---------------------- Page: 4 ----------------------
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

---------------------- Page: 5 ----------------------
– 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

---------------------- Page: 6 ----------------------
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

---------------------- Page: 7 ----------------------
– 6 – IEC 62282-3-100:2019 © IEC 2019
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FUEL CELL TECHNOLOGIES –
Part 3-100: Stationary fuel cell power systems – Safety
FOREWORD

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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.
---------------------- Page: 8 ----------------------
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.
---------------------- Page: 9 ----------------------
– 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
...

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