EN 50155:2021

SLOVENSKI STANDARD
01-oktober-2021
Nadomešča:
SIST EN 50155:2018
Železniške naprave - Vozna sredstva - Elektronska oprema
Railway applications - Rolling stock - Electronic equipment
Bahnanwendungen - Elektronische Einrichtungen auf Schienenfahrzeugen
Applications ferroviaires - Équipements électroniques utilisés sur le matériel roulant
Ta slovenski standard je istoveten z: EN 50155:2021
ICS:
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.

EUROPEAN STANDARD EN 50155
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2021
ICS 45.060.01 Supersedes EN 50155:2017 and all of its amendments
and corrigenda (if any)
English Version
Railway applications - Rolling stock - Electronic equipment
Applications ferroviaires - Équipements électroniques Bahnanwendungen - Fahrzeuge - Elektronische
utilisés sur le matériel roulant Betriebsmittel
This European Standard was approved by CENELEC on 2021-06-28. 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
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50155:2021 E
Contents
European foreword . 5
Introduction . 8
1 Scope . 9
2 Normative references . 9
3 Terms, definitions and abbreviations .11
3.1 Terms and definitions .11
3.2 Abbreviations .17
4 General requirements .18
4.1 Requirement for equipment characteristics .18
4.2 Classes of environmental, constructional and service conditions .18
4.3 Performance criteria .18
4.4 Environmental service conditions .19
4.5 Special service conditions .23
4.6 Installation requirements .23
5 Electrical service conditions .24
5.1 General .24
5.2 Battery voltage supply system .26
5.3 Supply by another source than the vehicle battery .30
6 Reliability, maintainability and expected useful life .30
6.1 Equipment reliability .30
6.2 Useful life .31
6.3 Maintainability .31
6.4 Automatic test equipment .32
6.5 Purpose-built test equipment and special tools .32
7 Design .33
7.1 General .33
7.2 Detailed practices - Hardware .33
7.3 Detailed practices - Software .37
7.4 Features of software-controlled equipment .37
8 Electronic equipment not designed for use on rolling stock .38
9 Components .38
9.1 Procurement .38
9.2 Application .38
10 Construction .39
10.1 Equipment construction .39
10.2 Component mounting .40
10.3 Electrical connections .41
10.4 Internal flexible wiring (electrical and optical) .42
10.5 Flexible printed wiring .42
10.6 Printed circuit boards - flexible and rigid .42
10.7 Protective coatings for printed board assemblies .43
10.8 Identification .44
10.9 Mounting .44
10.10 Cooling and ventilation .44
10.11 Materials and finishes .45
10.12 Reworking, modification and repair of electronic assemblies .45
11 Safety .45
11.1 General .45
11.2 Personnel safety .45
11.3 Functional safety .45
11.4 Fire behaviour requirements .45
12 Documentation .46
12.1 General .46
12.2 Supply and storage of documentation .46
12.3 Datasheet .46
12.4 User and maintenance manual .46
12.5 Equipment installation documentation .46
12.6 Commissioning documentation .47
12.7 Design documentation .47
13 Testing .51
13.1 General .51
13.2 Categories of tests .52
13.3 List of tests and test conditions .53
13.4 Test specification .54
Annex A (informative) List of default requirements of EN 50155 and related subclauses .69
Annex B (informative) System testing approach .70
B.1 General .70
B.2 Situation of applicability .70
B.3 General methodology .70
B.3.1 General .70
B.3.2 Item specific procedures .71
B.3.3 Equipment specific steps .71
B.4 Equipment integration design review .72
B.5 Equipment integration type test .72
B.6 Equipment installation design review.72
B.7 Equipment installation type test .72
B.8 Equipment installation routine test .72
B.9 Equipment periodic re-verification .72
B.10 Replacement of items and ancillary components .72
Annex C (informative) Severity level of service conditions in different vehicle locations .74
C.1 General .74
C.2 Severity of service conditions in different rolling stock types .74
C.3 Intended use of rolling stock .74
C.4 Location of equipment on-board rolling stock .74
C.5 Severity of the service conditions in different rolling stock locations .76
Annex D (informative) Example for a summary of equipment type test compliance .78
Annex E (informative) User programmable integrated circuit life cycle example .81
Annex F (informative) Design suggestions for electronic hardware used on rolling stock .82
F.1 Purpose of this annex .
...