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BS EN 50155:2021

BS EN 50155:2021

$215.11

Railway applications. Rolling stock. Electronic equipment

Published By Publication Date Number of Pages
BSI 2021 112
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Revision of EN50155:2017 in order to include, after analysis and evaluation by WG29, the unresolved comments/issues on FprEN 50155, most of which were casted by Fr NC and Fi NC and reported in the document SC9XB_61051vot1_res_ccmc_20170714-Final.doc.

PDF Catalog

PDF Pages PDF Title
2 undefined
11 1 Scope
2 Normative references
13 3 Terms, definitions and abbreviations
3.1 Terms and definitions
19 3.2 Abbreviations
20 4 General requirements
4.1 Requirement for equipment characteristics
4.2 Classes of environmental, constructional and service conditions
4.3 Performance criteria
4.3.1 General
21 4.3.2 Performance criterion A
4.3.3 Performance criterion B
4.3.4 Performance criterion C
4.4 Environmental service conditions
4.4.1 Altitude
4.4.2 Operating temperature
23 4.4.3 Increased operating temperature at switch-on
4.4.4 Rapid temperature variations
24 4.4.5 Shock and vibration
4.4.6 Electromagnetic compatibility
4.4.7 Relative humidity
25 4.5 Special service conditions
4.5.1 General
4.5.2 Atmospheric pollutants
4.6 Installation requirements
4.6.1 General
4.6.2 Installation instructions
4.6.3 Battery voltage supply system
4.6.4 Thermal compatibility
4.6.5 Electromagnetic compatibility
26 4.6.6 Cabling inside vehicle
4.6.7 Wiring inside equipment
4.6.8 Insulation of the installation
5 Electrical service conditions
5.1 General
5.1.1 DC supply system
27 5.1.2 AC supply system
28 5.2 Battery voltage supply system
5.2.1 General
5.2.2 Supply voltage range
29 5.2.3 Temporary supply voltage variation
5.2.4 Interruptions of supply voltage
30 5.2.5 Supply change-over
5.2.6 Grouping of supply voltages
31 5.2.7 DC ripple factor
32 5.2.8 Behaviour of system power supply during start of combustion engine
5.3 Supply by another source than the vehicle battery
5.3.1 Supply by a specific source
5.3.2 Supply by an AC auxiliary power converter
5.3.3 Supply with overhead line or third rail
6 Reliability, maintainability and expected useful life
6.1 Equipment reliability
6.1.1 Predicted reliability
6.1.2 Proof of reliability
33 6.2 Useful life
6.3 Maintainability
6.3.1 General
6.3.2 Preventive maintenance
34 6.3.3 Corrective maintenance
6.3.3.1 On-vehicle diagnosis and repair
6.3.3.2 Off-vehicle diagnosis and repair
6.3.4 Built-in diagnostics
6.4 Automatic test equipment
6.5 Purpose-built test equipment and special tools
35 7 Design
7.1 General
7.1.1 Quality management
7.1.2 System life cycle model
7.2 Detailed practices – Hardware
7.2.1 Insulation coordination
7.2.2 Interfacing
38 7.2.3 Fault protection
7.2.4 Reference potential of power supplies
7.2.5 Interchangeability
7.2.6 Reduction of supply voltage and ON/OFF phases
7.2.7 Reverse polarity protection
7.2.8 Inrush currents
7.2.9 Energetic transient pulses
39 7.2.10 Capacitance to earth
7.2.11 Spare capacity
7.2.12 User Programmable Integrated Circuit
7.3 Detailed practices – Software
7.3.1 General
7.3.2 Life cycle
7.4 Features of software-controlled equipment
7.4.1 General
7.4.2 Self-test
7.4.3 Watchdog
7.4.4 Failure indication
7.4.5 Recover from fault or error state
40 8 Electronic equipment not designed for use on rolling stock
9 Components
9.1 Procurement
9.2 Application
41 10 Construction
10.1 Equipment construction
10.1.1 General
10.1.2 Mechanical protection
10.1.3 Polarization or coding
10.1.4 Dimensional requirements
42 10.2 Component mounting
10.2.1 General
10.2.2 Layout
10.2.3 Fixing
43 10.2.4 Component lead terminations
10.2.5 Integrated circuit sockets and edge connectors
10.2.6 Pre-set controls
10.2.7 Select-on-test components
10.3 Electrical connections
10.3.1 General
10.3.2 Soldered connections
10.3.3 Crimped connections
44 10.3.4 Wire wrap connections
10.3.5 Other connections
10.4 Internal flexible wiring (electrical and optical)
10.5 Flexible printed wiring
10.6 Printed circuit boards – flexible and rigid
10.6.1 General
45 10.6.2 Holes
10.6.3 Printed circuit board acceptability
10.6.4 Layout
10.6.5 Materials
10.7 Protective coatings for printed board assemblies
46 10.8 Identification
10.8.1 Bare PCB identification
10.8.2 Identification of subracks and printed board assemblies
10.8.3 Mounting position of subracks and printed board assemblies
10.8.4 Fuse and battery identification
10.9 Mounting
10.10 Cooling and ventilation
47 10.11 Materials and finishes
10.12 Reworking, modification and repair of electronic assemblies
11 Safety
11.1 General
11.2 Personnel safety
11.2.1 General
11.2.2 Personnel safety against electric shock
11.2.3 Personnel safety against effects of excessive temperature
11.3 Functional safety
11.4 Fire behaviour requirements
48 12 Documentation
12.1 General
12.2 Supply and storage of documentation
12.3 Datasheet
12.4 User and maintenance manual
12.5 Equipment installation documentation
49 12.6 Commissioning documentation
12.7 Design documentation
12.7.1 General
12.7.2 Block diagrams
12.7.3 Wiring diagrams
12.7.4 Cabling diagrams
50 12.7.5 Interface specification
12.7.6 Internal interface specification
12.7.7 Equipment drawings
12.7.8 Documentation ā€“ Hardware
12.7.8.1 General
12.7.8.2 Manufacturing data
12.7.8.3 User Programmable Integrated Circuits (UPIC, e.g. FPGA, PLD, ASIC)
51 12.7.9 Non-repairable items list
12.7.10 Repair documentation
12.7.10.1 General
52 12.7.10.2 Circuit diagrams
12.7.10.3 Component list (Bill of material)
12.7.10.4 Component layout
12.7.10.5 Special maintenance tool
12.7.11 Documentation ā€“ Software
53 12.7.12 Documentation ā€“ System
13 Testing
13.1 General
54 13.2 Categories of tests
13.2.1 General
13.2.2 Type tests
13.2.3 Routine tests
55 13.2.4 Investigation tests
13.3 List of tests and test conditions
13.3.1 List of tests
13.3.2 Conditions during testing
56 13.4 Test specification
13.4.1 Visual inspection
13.4.2 Performance test
13.4.3 DC Power supply test
13.4.3.1 General
13.4.3.2 Supply voltage variations
13.4.3.3 Temporary supply overvoltages
57 13.4.3.4 Temporary supply undervoltage
58 13.4.3.5 Interruptions of supply voltage
59 13.4.3.6 Supply change-over
60 13.4.4 Low temperature test
61 13.4.5 Dry heat test
13.4.5.1 General
62 13.4.5.2 Dry heat thermal test ā€” Cycle A
63 13.4.5.3 Dry heat thermal test ā€” Cycle B
13.4.5.4 Dry heat thermal test – Cycle C
64 13.4.6 Low temperature storage test
13.4.7 Insulation test
13.4.7.1 General
65 13.4.7.2 Insulation resistance test
13.4.7.3 Voltage withstand test
66 13.4.8 Cyclic damp heat test
69 13.4.9 Electromagnetic compatibility test
13.4.10 Shock and vibration test
13.4.10.1 General
13.4.10.2 Simulated long life testing
13.4.10.3 Shock testing
13.4.10.4 Functional random vibration test
13.4.10.5 Enclosure protection test (IP code)
70 13.4.11 Stress screening test
13.4.12 Rapid temperature variation test
13.4.13 Salt mist test
71 Annex A (informative)List of default requirements of EN 50155 and related subclauses
72 Annex B (informative)System testing approach
B.1 General
B.2 Situation of applicability
B.3 General methodology
B.3.1 General
73 B.3.2 Item specific procedures
B.3.3 Equipment specific steps
74 B.4 Equipment integration design review
B.5 Equipment integration type test
B.6 Equipment installation design review
B.7 Equipment installation type test
B.8 Equipment installation routine test
B.9 Equipment periodic re-verification
B.10 Replacement of items and ancillary components
76 Annex C (informative)Severity level of service conditions in different vehicle locations
C.1 General
C.2 Severity of service conditions in different rolling stock types
C.3 Intended use of rolling stock
C.4 Location of equipment on-board rolling stock
78 C.5 Severity of the service conditions in different rolling stock locations
80 Annex D (informative)Example for a summary of equipment type test compliance
83 Annex E (informative)User programmable integrated circuit life cycle example
84 Annex F (informative)Design suggestions for electronic hardware used on rolling stock
F.1 Purpose of this annex
F.2 Design topics
F.2.1 Pollutants
F.2.2 Methods against ageing regarding energetic transient pulses
85 F.2.3 Capacitors to earth
F.2.4 Inside cabling for equipment
86 F.2.5 Earth configuration
F.2.6 Prototype testing
F.2.7 Interfacing
F.2.8 Solder joint on PBA
F.2.9 Derating
94 Annex G (informative)Electronic equipment not designed for use on rolling stock
96 Annex H (informative)Paragraphs with Agreements between the involved Parties
101 Annex I (informative)Electronic equipment supplied from AC supply system
I.1 General
I.2 Electric requirements
102 Annex J (informative)Typical content of datasheets
105 Annex K (informative)Insulation test and testing matrix example
107 Annex L (informative)Relationship between this European Standard and the Essential Requirements of EU Directive 2016/797/EU aimed to be covered

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BS EN 50155:2021
$215.11