prEN IEC 63341-1:2024

SLOVENSKI STANDARD
01-maj-2024
Železniške naprave - Vozna sredstva- Sistemi gorivnih celic za vozna sredstva - 1.
del: Sistemi gorivnih celic
Railway applications - Rolling stock - Fuel cell systems for propulsion - Part 1: Fuel cell
system
Ta slovenski standard je istoveten z: prEN IEC 63341-1:2024
ICS:
27.070 Gorilne celice Fuel cells
45.060.01 Železniška vozila na splošno Railway rolling stock in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

9/3049/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 63341-1 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2024-03-08 2024-05-31
SUPERSEDES DOCUMENTS:
9/2914/CD, 9/2956A/CC
IEC TC 9 : ELECTRICAL EQUIPMENT AND SYSTEMS FOR RAILWAYS
SECRETARIAT: SECRETARY:
France Mr Denis MIGLIANICO
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

TC 105
Other TC/SCs are requested to indicate their interest, if any, in
this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft for Vote
(CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some Countries” clauses to
be included should this proposal proceed. Recipients are reminded that the CDV stage is the final stage for submitting ISC clauses.
(SEE AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
Railway applications – Hydrogen and fuel cell systems for rolling stock – Part 1: Fuel cell power system

PROPOSED STABILITY DATE: 2028
NOTE FROM TC/SC OFFICERS:
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
permission in writing from IEC.

9/3049/CDV – 2 – IEC CD 63341-1 © IEC 2024
CONTENTS
FOREWORD . 6
INTRODUCTION . 8
1 Scope . 10
2 Normative references . 11
3 Terms, definitions and abbreviated terms . 13
3.1 Defintions . 13
3.2 Abbreviated terms . 23
4 Configuration of the fuel cell power system . 24
4.1 Fuel cell power system definition . 24
4.2 Subsystems of the fuel cell power system . 26
4.3 PEM Fuel Cell . 26
5 Environmental requirements . 27
5.1 General . 27
5.2 Specific use case . 28
5.2.1 Rooftop installation . 28
5.2.2 Tunnel . 28
5.2.3 Performance limitation at low and high ambient temperature . 28
5.2.4 Performance limitation at high altitude . 28
6 Interface requirements . 30
6.1 General . 30
6.2 Fluidic Interfaces . 30
6.2.1 Fuel supply . 30
6.2.2 Oxidant Supply . 30
6.2.3 Coolant . 31
6.2.4 Air inlets . 31
6.2.5 Exhaust . 31
6.3 Electrical interfaces . 32
6.3.1 General . 32
6.3.2 Main Power interface . 32
6.3.3 Auxiliary supply and communication interfaces . 33
7 Performance requirements. 34
7.1 General . 34
7.2 Fuel cell power system sizing. 34
7.3 Load Profile . 34
7.4 Operational requirements . 35
7.4.1 Normal mode requirements . 35
Degraded mode requirements . 35
7.5 Electric efficiency and hydrogen consumption calculations . 35
7.6 Lifetime requirements . 35
7.7 End of life performance . 36
7.8 Voltage stability . 36
8 Design Requirements . 37
8.1 General . 37
8.2 FMS Requirements . 37
8.2.1 Design requirement . 37
8.2.2 Functional requirement . 38

IEC CD 63341-1 © IEC 2024 – 3 – 9/3049/CDV
8.3 OMS requirements . 39
8.3.1 Design requirement . 39
8.4 TMS Requirements . 39
8.4.1 Design requirements . 39
8.4.2 Functional requirements . 41
8.5 ExMS requirements . 41
8.5.1 Hydrogen release . 41
8.5.2 Waste Water . 41
8.6 EPMS requirements . 42
8.6.1 General . 42
8.6.2 Cabling . 42
8.6.3 Ripple current . 42
8.6.4 Electric power input . 42
8.6.5 Auxiliary motors . 42
8.6.6 Light maintenance operation . 43
8.7 MCS requirements . 43
8.7.1 Hardware . 43
8.7.2 Software . 43
8.8 Mechanical requirements . 43
8.8.1 Mechanical integration . 43
8.8.2 Mechanical design . 44
8.8.3 Bolted assemblies . 44
8.8.4 Degree of protection . 44
8.8.5 Shock & vibration. 44
8.9 Recyclability requirements . 45
8.10 Documentation . 45
8.11 Other . 46
8.11.1 Noise Emission requirements . 46
8.11.2 EMC requirements . 46
9 Safety, reliability and protection requirements . 48
9.1 Reliability . 48
9.2 Safety . 48
9.2.1 Safety analysis . 48
9.2.2 Hazard Identification . 49
9.2.3 Prevention for maintenance operation and storage . 49
9.2.4 Hydrogen risk management . 50
9.2.5 Fire, smoke, flammability . 52
9.2.6 Electrical shock . 52
9.2.7 Software . 52
10 Marking and labelling . 53
10.1 Safety signs . 53
10.1.1 FCPS enclosure. 53
10.1.2 Other places inside the FCPS enclosure . 53
10.2 Nameplate . 53
10.2.1 FCPS enclosure. 53
10.2.2 Nameplates on sub-assemblies inside the box . 53
11 Installation and Maintenance . 55
11.1 General . 55
11.2 Installation . 55

9/3049/CDV – 4 – IEC CD 63341-1 © IEC 2024
11.3 Maintenance . 55
11.3.1 General .
...