Railway applications - Electronic equipment used on rolling stock

This draft European Standard applies to all electronic equipment for control, regulation, protection, diagnostic, supply, etc. installed on rail vehicles.
For the purpose of this draft European Standard, electronic equipment is defined as equipment mainly composed of semiconductor devices and recognized associated components. These components will mainly be mounted on printed boards.
Sensors (current, voltage, speed, etc.) and firing unit printed board assemblies for power electronic devices are covered by this standard. Complete firing units and electronic power circuits are covered by EN 61287-1.
This draft European Standard covers the conditions of operation, design requirements, documentation, and testing of electronic equipment, as well as basic hardware and software requirements considered necessary for compliant and reliable equipment.
Specific requirements related to practices necessary to ensure defined levels of functional safety will be determined in accordance with relevant railway safety standards.
Subject to the paragraph above, software is within the scope of this standard until a suitable standard for software on board rolling stock is available.
NOTE    A standard for software on board rolling stock (except for software for train control and protection) is under development.

Bahnanwendungen - Elektronische Einrichtungen auf Schienenfahrzeugen

Applications ferroviaires - Équipements électroniques utilisés sur le matériel roulant

Le présent projet de Norme européenne s'applique à tous les équipements électroniques de commande, de régulation, de protection, de diagnostic, d'alimentation, etc. montés sur des véhicules ferroviaires.
Pour les besoins du présent projet de Norme européenne, un équipement électronique est défini comme étant un équipement composé principalement de dispositifs à semiconducteurs et des composants qui y sont associés. Ces composants sont généralement montés sur des circuits imprimés.
Les capteurs (de courant, tension, vitesse, etc.) et les circuits imprimés d'allumage des équipements électroniques de puissance sont couverts par la présente Norme. Les allumeurs et circuits de puissance électroniques complets sont couverts par l'EN 61287-1.
Le présent projet de Norme européenne couvre les conditions de fonctionnement, les exigences de conception, la documentation et les essais des équipements électroniques, ainsi que les exigences matérielles et logicielles de base considérées comme nécessaires pour assurer la conformité et la fiabilité des équipements.
Les exigences spécifiques relatives aux pratiques nécessaires pour assurer des niveaux définis de sécurité de fonctionnement sont déterminées conformément aux normes de sécurité ferroviaire correspondantes.
Sous réserve des spécifications de l'alinéa ci-dessus, le logiciel relève du domaine d'application de la présente Norme tant qu'une norme pertinente relative aux logiciels embarqués sur les matériels roulants n'est pas disponible.
NOTE    Une norme relative aux logiciels embarqués sur les matériels roulants (à l'exception des logiciels de commande et de protection des trains) est en cours d’élaboration.

Železniške naprave - Vozna sredstva - Elektronska oprema

Ta osnutek evropskega standarda se uporablja za vso elektronsko opremo za nadzor, regulacijo, zaščito, diagnosticiranje napajanje itd., ki je nameščena na železniška vozila.
Za namene tega osnutka evropskega standarda je elektronska oprema definirana kot oprema, sestavljena predvsem iz polprevodniških naprav in priznanih pripadajočih sestavnih delov. Ti sestavni deli se bodo namestili predvsem na tiskana vezja.
Ta standard zajema tipala (za tok, napetost, hitrost itd.) in sestave plošč tiskanih vezij sprožilnih enot za močnostne naprave. Celoten seznam sprožilnih enot in močnostnih elektronskih tokokrogov je podan v standardu EN 61287-1.
Ta osnutek evropskega standarda zajema pogoje za obratovanje, zahteve za načrtovanje, dokumentacijo in preskušanje elektronske opreme ter osnovne zahteve glede strojne in programske opreme, ki se obravnavajo kot nujne za skladno in zanesljivo opremo.
Posebne zahteve v zvezi s praksami, ki so potrebne za zagotovitev določenih ravni funkcionalne varnosti, bodo določene v skladu z ustreznimi železniškimi varnostnimi standardi.
Ob upoštevanju zgornjega odstavka programska oprema spada na področje uporabe tega standarda, dokler ni na voljo ustreznega standarda za programsko opremo na voznih sredstvih.
OPOMBA: Standard za programsko opremo na voznih sredstvih (razen programske opreme za nadzor in zaščito vlakov) je v pripravi.

General Information

Status
Published
Public Enquiry End Date
12-May-2016
Publication Date
11-Dec-2017
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
28-Nov-2017
Due Date
02-Feb-2018
Completion Date
12-Dec-2017

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SLOVENSKI STANDARD
SIST EN 50155:2018
01-januar-2018
1DGRPHãþD
SIST EN 50155:2007
SIST EN 50155:2007/AC:2012
Železniške naprave - Vozna sredstva - Elektronska oprema
Railway applications - Electronic equipment used on rolling stock
Bahnanwendungen - Elektronische Einrichtungen auf Schienenfahrzeugen
Applications ferroviaires - Équipements électroniques utilisés sur le matériel roulant
Ta slovenski standard je istoveten z: EN 50155:2017
ICS:
45.060.01 Železniška vozila na splošno Railway rolling stock in
general
SIST EN 50155:2018 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 50155:2018

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SIST EN 50155:2018

EUROPEAN STANDARD EN 50155

NORME EUROPÉENNE

EUROPÄISCHE NORM
October 2017
ICS 45.060.01 Supersedes EN 50155:2007
English Version
Railway applications - Rolling stock - Electronic equipment
Applications ferroviaires - Équipements électroniques Bahnanwendungen - Elektronische Einrichtungen auf
utilisés sur le matériel roulant Schienenfahrzeugen
This European Standard was approved by CENELEC on 2017-05-08. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, 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: Avenue Marnix 17, B-1000 Brussels
© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN 50155:2017 E

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SIST EN 50155:2018
EN 50155:2017 (E)

Page
Contents
European foreword . 9
Introduction . 11
1 Scope . 12
2 Normative references . 12
3 Terms, definitions and abbreviations . 14
3.1 Terms and definitions . 14
3.2 Abbreviations . 19
4 General requirements . 20
4.1 Performance requirements . 20
4.2 Performance criteria . 20
4.2.1 General . 20
4.2.2 Performance criterion A . 20
4.2.3 Performance criterion B . 20
4.2.4 Performance criterion C . 21
4.3 Environmental service conditions . 21
4.3.1 Altitude . 21
4.3.2 Operating temperature . 21
4.3.3 Switch-on extended operating temperature . 22
4.3.4 Rapid temperature variations . 23
4.3.5 Shock and vibration . 23
4.3.6 Electromagnetic compatibility . 23
4.3.7 Relative humidity. 23
4.4 Special service conditions . 24
4.4.1 General . 24
4.4.2 Atmospheric pollutants . 24
5 Electrical service conditions . 24
5.1 Power supply . 24
5.1.1 DC Supply . 24
5.1.2 Supply by a specified source other than the main power source . 28
5.1.3 Supply change-over . 28
5.1.4 Supply with overhead line or third rail . 28
5.2 Installation requirements . 29
5.2.1 Power supply . 29
5.2.2 Thermal compatibility . 29
5.2.3 Electromagnetic compatibility . 29
5.2.4 Cabling . 29
5.2.5 Installation instruction . 29
2

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SIST EN 50155:2018
EN 50155:2017 (E)
5.2.6 Insulation . 29
6 Reliability, maintainability and expected useful life . 29
6.1 Equipment reliability . 29
6.1.1 Predicted reliability . 29
6.1.2 Proof of reliability . 31
6.2 Useful life . 32
6.3 Maintainability . 33
6.3.1 General . 33
6.3.2 Preventive Maintenance . 33
6.3.3 Corrective Maintenance . 33
6.4 Built-in diagnostics . 34
6.5 Automatic test equipment. 34
6.6 Purpose built test equipment and special tools . 34
7 Design. 34
7.1 General. 34
7.1.1 Equipment . 34
7.1.2 Quality management . 34
7.1.3 System Life-cycle . 34
7.2 Detailed practices - Hardware . 35
7.2.1 Insulation coordination . 35
7.2.2 Interfacing . 35
7.2.3 Fault protection . 37
7.2.4 Referencing power supplies . 37
7.2.5 Interchangeability . 37
7.2.6 Reduction of supply voltage and ON/OFF phases . 37
7.2.7 Polarity reversal . 37
7.2.8 Inrush currents . 37
7.2.9 Energetic transient pulses . 37
7.2.10 Capacitance to ground/earth . 38
7.2.11 Spare capacity . 38
7.2.12 Programmable Component . 38
7.3 Detailed practices - Software . 38
7.3.1 General . 38
7.3.2 Life-cycle . 38
7.4 Features of software controlled equipment . 38
7.4.1 General . 38
7.4.2 Self-test . 38
7.4.3 Watchdog . 38
7.4.4 Failure indication . 38
7.4.5 Recovery . 38
8 Non-railway designed electronic equipment . 39
3

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SIST EN 50155:2018
EN 50155:2017 (E)
9 Components . 39
9.1 General. 39
9.2 Procurement . 39
9.3 Application . 39
10 Construction . 40
10.1 Equipment construction . 40
10.1.1 General . 40
10.1.2 Mechanical protection . 40
10.1.3 Polarization or coding . 40
10.1.4 Dimensional requirements . 40
10.1.5 Sockets and edge connectors . 40
10.1.6 Cabling inside cubicles . 40
10.2 Component mounting . 41
10.2.1 General . 41
10.2.2 Layout . 41
10.2.3 Fixing . 41
10.2.4 Component lead terminations . 41
10.2.5 Pre-set control . 41
10.2.6 Select on test components . 41
10.3 Electrical connections . 41
10.3.1 General . 41
10.3.2 Soldered connections . 41
10.3.3 Crimped connections . 42
10.3.4 Wire wrap connections . 42
10.3.5 Other connections . 42
10.4 Internal flexible wiring (electrical and optical) . 42
10.5 Flexible printed wiring . 42
10.6 Printed boards - flexible and rigid . 43
10.6.1 Printed board . 43
10.6.2 PCB acceptability . 43
10.6.3 Layout . 43
10.6.4 Materials . 43
10.7 Protective coatings for printed board assemblies . 43
10.8 Identification . 44
10.8.1 Bare PCB identification . 44
10.8.2 Identification of subracks and printed board assemblies . 44
10.8.3 Mounting position of subracks and printed board assemblies . 44
10.8.4 Fuse and battery identification . 44
10.9 Mounting . 44
10.10 Cooling and ventilation . 45
10.11 Materials and finishes . 45
4

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SIST EN 50155:2018
EN 50155:2017 (E)
10.12 Reworking, modification and repair of electronic assemblies . 45
11 Safety . 45
11.1 General . 45
11.2 Requirements . 45
11.3 Fire behaviour requirements . 45
11.4 Functional safety . 46
11.5 Personnel safety . 46
12 Documentation . 46
12.1 General . 46
12.2 Supply and storage of documentation . 46
12.3 Datasheet . 46
12.4 User manual . 49
12.5 Equipment integration/installation documentation . 49
12.6 Commissioning documentation . 50
12.7 Design documentation . 50
12.7.1 General . 50
12.7.2 Block diagrams . 51
12.7.3 Wiring diagrams . 51
12.7.4 Interface specification . 51
12.7.5 Internal interface specification . 51
12.7.6 Equipment drawings . 51
12.7.7 Documentation – Hardware . 51
12.7.8 Non repairable items list . 52
12.7.9 Repair and Maintenance Documentation . 52
12.7.10 Documentation – Software . 53
12.7.11 Documentation – System . 54
13 Testing . 54
13.1 General . 54
13.2 Categories of tests. 54
13.2.1 General . 54
13.2.2 Type tests . 55
13.2.3 Routine tests . 55
13.2.4 Investigation tests . 55
13.3 Tests summary . 55
13.4 Test specification . 56
13.4.1 Visual inspection . 56
13.4.2 Performance test. 56
13.4.3 Power supply test. 57
13.4.4 Low temperature start-up test . 60
13.4.5 Dry heat test . 61
13.4.6 Low temperature storage test . 64
5

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SIST EN 50155:2018
EN 50155:2017 (E)
13.4.7 Cyclic damp heat test . 65
13.4.8 Electromagnetic compatibility test . 67
13.4.9 Insulation test . 67
13.4.10 Salt mist test . 68
13.4.11 Vibration and shock test . 69
13.4.12 Enclosure protection test (IP code) . 69
13.4.13 Stress screening test . 70
13.4.14 Rapid Temperature variation test . 70
Annex A (informative) List of default requirements of EN 50155 and related clauses . 71
Annex B (informative) Testing approach . 72
B.1 General. 72
B.2 Situation of applicability. 72
B.3 General methodology . 72
B.4 Equipment Specific Methodology . 74
B.5 Equipment integration design review . 74
B.6 Equipment integration type test . 74
B.7 Equipment installation design review . 74
B.8 Equipment installation type test . 75
B.9 Equipment installation routine test . 75
B.10 Equipment periodic re-verification . 75
B.11 Replacement of items and ancillary components . 75
Annex C (informative) Severity of the service conditions in different rolling stock locations . 76
C.1 General. 76
C.2 Severity of service conditions in different rolling stock types . 76
C.3 Intended use of rolling stock . 76
C.4 Location of equipment on board rolling stock . 76
C.5 Severity of the service conditions in different rolling stock locations . 78
Annex D (informative) Example of test report compliance summary . 80
Annex E (informative) Life cycle model examples — Programmable component life cycle
example . 82
Annex F (informative) Design guidelines for electronic hardware used on board of rolling stock
. 83
F.1 Purpose of this annex . 83
F.2 Design Rules . 83
F.2.1 Pollutants . 83
F.2.2 Methods against ageing regarding energetic transient pulses . 83
F.2.3 Capacitor to ground/earth . 84
F.2.4 Inside cabling for equipment .
...

SLOVENSKI STANDARD
oSIST prEN 50155:2016
01-maj-2016
Železniške naprave - Elektronska oprema na voznih sredstvih
Railway applications - Electronic equipment used on rolling stock
Bahnanwendungen - Elektronische Einrichtungen auf Schienenfahrzeugen
Applications ferroviaires - Équipements électroniques utilisés sur le matériel roulant
Ta slovenski standard je istoveten z: prEN 50155:2016
ICS:
45.060.01 Železniška vozila na splošno Railway rolling stock in
general
oSIST prEN 50155:2016 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 50155:2016

---------------------- Page: 2 ----------------------
oSIST prEN 50155:2016

EUROPEAN STANDARD DRAFT
prEN 50155
NORME EUROPÉENNE

EUROPÄISCHE NORM

February 2016
ICS 45.060.01 Will supersede EN 50155:2007
English Version
Railway applications - Electronic equipment used on rolling stock
Applications ferroviaires - Équipements électroniques Bahnanwendungen - Elektronische Einrichtungen auf
utilisés sur le matériel roulant Schienenfahrzeugen
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2016-05-13.

It has been drawn up by CLC/SC 9XB.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CENELEC 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.



European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Project: 61051 Ref. No. prEN 50155:2016 E

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oSIST prEN 50155:2016
prEN 50155:2016
1
Contents Page
2 European foreword . 8
3
Introduction . 9
4
1 Scope . 10
5
2 Normative references . 10
6
3 Terms, definitions and abbreviations . 12
7 3.1 Terms and definitions . 12
8 Acronyms . 16
3.2
9
4 General requirements . 17
10 4.1 Performance requirements . 17
11 Performance criteria . 17
4.2
12 4.2.1 General . 17
13 4.2.2 Performance criterion A . 17
14 4.2.3 Performance criterion B . 17
15 4.2.4 Performance criterion C . 18
16 4.3 Environmental service conditions . 18
17 4.3.1 Altitude . 18
18 4.3.2 Operating temperature . 18
19 4.3.3 Start-up extended Operating temperature . 19
20 4.3.4 Rapid temperature variations . 20
21 4.3.5 Shock and vibration . 20
22 4.3.6 Electromagnetic compatibility. 20
23 4.3.7 Relative humidity . 20
24 4.4 Special service conditions . 21
25 4.4.1 General . 21
26 4.4.2 Atmospheric pollutants . 21
27
Electrical service conditions . 21
5
28 5.1 Power supply . 21
29 5.1.1 DC Supply . 21
30 5.1.2 Supply by a stabilized supply. 25
31 5.1.3 Supply change over . 25
32 5.1.4 Supply with overhead line or third rail . 26
33 5.2 Installation requirements . 26
34 5.2.1 Power supply . 26
35 5.2.2 Thermal compatibility . 26
36 5.2.3 Electromagnetic compatibility. 26
37 5.2.4 Cabling . 26
38 5.2.5 Installation instruction . 26
39 5.2.6 Insulation . 27
40
Reliability, maintainability and expected useful life . 27
6
41 6.1 Equipment reliability . 27
2

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prEN 50155:2016
42 6.1.1 Predicted reliability . 27
43 6.1.2 Proof of reliability . 28
44 6.2 Useful life . 30
45 6.3 Maintainability . 31
46 6.3.1 General . 31
47 6.3.2 Preventive Maintenance . 31
48 6.3.3 Corrective Maintenance . 31
49 6.4 Built-in diagnostics . 31
50 6.5 Automatic test equipment . 32
51 6.6 Purpose built test equipment and special tools . 32
52
7 Design . 32
53 7.1 General . 32
54 7.1.1 Equipment . 32
55 7.1.2 Quality management . 32
56 7.1.3 System Life-cycle . 32
57 7.2 Detailed practices - Hardware . 34
58 7.2.1 Insulation coordination . 34
59 7.2.2 Interfacing. 34
60 7.2.3 Fault protection . 36
61 7.2.4 Referencing power supplies . 36
62 7.2.5 Interchangeability . 36
63 7.2.6 Reduction of supply voltage. 36
64 7.2.7 Polarity reversal . 36
65 7.2.8 Inrush currents . 36
66 7.2.9 Energetic transient pulses . 37
67 7.2.10 Capacitor to ground/earth . 37
68 7.2.11 Spare capacity . 37
69 7.2.12 Programmable Component. 37
70 7.3 Detailed practices - Software. 38
71 7.3.1 General . 38
72 7.3.2 Life-cycle . 39
73 7.4 Features of software controlled equipment . 39
74 7.4.1 General . 39
75 7.4.2 Self-test . 39
76 7.4.3 Watchdog. 39
77 7.4.4 Failure indication . 39
78 7.4.5 Recovery . 39
79
8 Non-railway designed electronic equipment . 39
80
9 Components . 39
81 9.1 General . 39
82 9.2 Procurement . 39
83 9.3 Application . 40
84
10 Construction . 41
85 10.1 Equipment construction . 41
3

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prEN 50155:2016
86 10.1.1 General . 41
87 10.1.2 Mechanical protection . 41
88 10.1.3 Polarization or coding . 41
89 10.1.4 Dimensional requirements . 41
90 10.2 Component mounting . 41
91 10.2.1 General . 41
92 10.2.2 Layout . 41
93 10.2.3 Fixing . 42
94 10.2.4 Component terminations . 42
95 10.2.5 Pre-set control . 42
96 10.2.6 Select on test (SOT) components . 42
97 Electrical connections . 42
10.3
98 10.3.1 General . 42
99 10.3.2 Soldered connections . 42
100 10.3.3 Crimped connections . 42
101 10.3.4 Wire wrap connections . 43
102 10.3.5 Other connections . 43
103 10.4 Internal flexible wiring (electrical and optical). 43
104 10.5 Flexible printed wiring . 43
105 Printed boards - flexible and rigid . 43
10.6
106 10.6.1 Printed board . 43
107 10.6.2 Procurement . 44
108 10.6.3 Layout . 44
109 10.6.4 Materials . 44
110 10.7 Protective coatings for printed circuit board assemblies . 44
111 10.8 Identification . 45
112 10.8.1 Bare printed board identification . 45
113 10.8.2 Identification of subracks and printed circuit board assemblies . 45
114 10.8.3 Mounting position of subracks and printed circuit board assemblies . 45
115 10.8.4 Fuse and battery identification . 46
116 Mounting . 46
10.9
117 10.10 Cooling and ventilation . 46
118 10.11 Materials and finishes . 46
119 Reworking, modification and repair of electronic assemblies . 47
10.12
120
11 Safety . 47
121 11.1 General . 47
122 General . 47
11.2
123 11.3 Fire behaviour requirements . 47
124 11.4 Functional safety . 47
125 Personnel safety . 47
11.5
126
12 Documentation . 47
127 12.1 General . 47
128 Supply and storage of documentation . 48
12.2
129 12.3 Datasheet . 48
4

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130 12.4 User manual . 51
131 12.5 Equipment integration/installation documentation . 51
132 12.6 Commissioning documentation . 52
133 12.7 Design documentation . 52
134 12.7.1 General . 52
135 12.7.2 Block diagrams . 52
136 12.7.3 Wiring diagrams . 52
137 12.7.4 Interface specification . 52
138 12.7.5 Internal Interface specification . 52
139 12.7.6 Equipment drawings . 53
140 12.7.7 Documentation – Hardware . 53
141 12.7.8 Non reparable items list . 54
142 12.7.9 Repair and Maintenance Documentation . 54
143 12.7.10 Documentation – Software . 55
144
13 Testing . 56
145 13.1 General . 56
146 13.2 Categories of tests . 57
147 13.2.1 General . 57
148 13.2.2 Type tests . 57
149 13.2.3 Routine tests . 58
150 13.2.4 Investigation tests . 58
151 13.3 Tests summary . 58
152 13.4 Test specification . 59
153 13.4.1 Visual inspection and check. 59
154 13.4.2 Performance test . 59
155 13.4.3 Power supply test . 59
156 13.4.4 Low temperature start-up test . 62
157 13.4.5 Dry heat test . 63
158 13.4.6 Low temperature storage test . 66
159 13.4.7 Cyclic damp heat test . 67
160 13.4.8 Electromagnetic compatibility test . 69
161 13.4.9 Insulation test . 69
162 13.4.10 Salt mist test . 71
163 13.4.11 Vibration and shock test . 71
164 13.4.12 Enclosure protection test (IP code) . 72
165 13.4.13 Equipment stress screening test . 72
166
Annex A (informative) List of default requirements of the EN 50155 and related clauses . 73
167
Annex B (informative) Testing approach . 74
168 B.1 Testing approach . 74
169 B.1.1 General . 74
170 B.1.2 Situation of applicability . 74
171 B.1.3 General Methodology . 74
172 B.1.4 Equipment Specific Methodology . 76
173 B.1.5 Equipment integration design review . 76
174 B.1.6 Equipment integration type test . 76
5

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175 B.1.7 Equipment installation design review . 77
176 B.1.8 Equipment installation type test . 77
177 B.1.9 Equipment installation routine test . 77
178 B.1.10 Equipment periodic re-verification . 77
179 B.1.11 Replacement of items and ancillary components . 77
180
Annex C (informative) Severity of the service conditions in different rolling stock locations . 78
181 C.1 General . 78
182 C.2 Severity of service conditions in different rolling stock technologies . 78
183 C.3 Intended use of rolling stock . 78
184 Location of equipment on board rolling stock . 78
C.4
185 C.5 Severity of the service conditions in different rolling stock locations . 80
186
Annex D (informative) Example of test report compliance summary . 82
187
Annex E (informative) Life cycle model examples. 84
188 E.1 Software life cycle model example . 84
189 E.2 Programmable component life cycle example . 85
190
Annex F (informative) Design guidelines for electronic hardware used on board of rolling stock
191
. 86
192 F.1 Purpose of this annex . 86
193 F.2 Design Rules . 86
194 F.2.1 Pollutants. 86
195 F.2.2 Methods against ageing regarding energetic transient pulses . 87
196 F.2.3 Capacitor to ground/earth . 87
197 F.2.4 Inside cabling for equipment . 88
198 F.2.5 Earthing configuration . 88
199 F.2.6 Prototype testing . 88
200 F.2.7 Interfacing. 88
201 F.2.8 Solder joint on PCB . 88
202 F.2.9 Derating . 88
203
Annex G (informative) Non-railway designed electronic equipment . 99
204 Bibliography . 101
205
206
Tables
207
Table 1 — Operating temperature classes (°C) . 19
208
Table 2 — Start-up extended operating temperature class . 19
209
Table 3 — Temperature variation classes . 20
210
Table 4 — Continuous Voltage range . 22
211
Table 5 — Fluctuation Voltage ranges . 23
212
Table 6 — Interruption voltage supply classes .
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