BS EN 50155:2017
$215.11
Railway applications. Rolling stock. Electronic equipment
| Published By | Publication Date | Number of Pages |
| BSI | 2017 | 108 |
This European Standard applies to all electronic equipment for control, regulation, protection, diagnostic, energy supply, etc. installed on rail vehicles.
For the purpose of this 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 Semiconductor drive unit (SDU) for power electronic devices are covered by this standard. Complete Semiconductor drive unit (SDU) and power converters are covered by
This 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.
The software requirements for on board railway equipment are specified by EN 50657 .
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 14 | 1 Scope 2 Normative references |
| 16 | 3 Terms, definitions and abbreviations 3.1 Terms and definitions |
| 21 | 3.2 Abbreviations |
| 22 | 4 General requirements 4.1 Performance requirements 4.2 Performance criteria 4.2.1 General 4.2.2 Performance criterion A 4.2.3 Performance criterion B |
| 23 | 4.2.4 Performance criterion C 4.3 Environmental service conditions 4.3.1 Altitude 4.3.2 Operating temperature |
| 24 | 4.3.3 Switch-on extended operating temperature |
| 25 | 4.3.4 Rapid temperature variations 4.3.5 Shock and vibration 4.3.6 Electromagnetic compatibility 4.3.7 Relative humidity |
| 26 | 4.4 Special service conditions 4.4.1 General 4.4.2 Atmospheric pollutants 5 Electrical service conditions 5.1 Power supply 5.1.1 DC Supply 5.1.1.1 General |
| 27 | 5.1.1.2 DC power supply range 5.1.1.3 Temporary DC power supply fluctuation |
| 28 | 5.1.1.4 Interruptions of voltage supply |
| 29 | 5.1.1.5 Variations of voltage supply for rolling stock powered by combustion engine 5.1.1.6 DC ripple factor |
| 30 | 5.1.2 Supply by a specified source other than the main power source 5.1.3 Supply change-over 5.1.4 Supply with overhead line or third rail |
| 31 | 5.2 Installation requirements 5.2.1 Power supply 5.2.2 Thermal compatibility 5.2.3 Electromagnetic compatibility 5.2.4 Cabling 5.2.5 Installation instruction 5.2.6 Insulation 6 Reliability, maintainability and expected useful life 6.1 Equipment reliability 6.1.1 Predicted reliability |
| 33 | 6.1.2 Proof of reliability |
| 34 | 6.2 Useful life |
| 35 | 6.3 Maintainability 6.3.1 General 6.3.2 Preventive Maintenance 6.3.3 Corrective Maintenance 6.3.3.1 On-vehicle diagnosis and repair 6.3.3.2 Off-vehicle diagnosis and repair |
| 36 | 6.4 Built-in diagnostics 6.5 Automatic test equipment 6.6 Purpose built test equipment and special tools 7 Design 7.1 General 7.1.1 Equipment 7.1.2 Quality management 7.1.3 System Life-cycle |
| 37 | 7.2 Detailed practices – Hardware 7.2.1 Insulation coordination 7.2.2 Interfacing |
| 39 | 7.2.3 Fault protection 7.2.4 Referencing power supplies 7.2.5 Interchangeability 7.2.6 Reduction of supply voltage and ON/OFF phases 7.2.7 Polarity reversal 7.2.8 Inrush currents 7.2.9 Energetic transient pulses |
| 40 | 7.2.10 Capacitance to ground/earth 7.2.11 Spare capacity 7.2.12 Programmable Component 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 Recovery |
| 41 | 8 Non-railway designed electronic equipment 9 Components 9.1 General 9.2 Procurement 9.3 Application |
| 42 | 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 10.1.5 Sockets and edge connectors 10.1.6 Cabling inside cubicles |
| 43 | 10.2 Component mounting 10.2.1 General 10.2.2 Layout 10.2.3 Fixing 10.2.4 Component lead terminations 10.2.5 Pre-set control 10.2.6 Select on test components 10.3 Electrical connections 10.3.1 General 10.3.2 Soldered connections |
| 44 | 10.3.3 Crimped connections 10.3.4 Wire wrap connections 10.3.5 Other connections 10.4 Internal flexible wiring (electrical and optical) 10.5 Flexible printed wiring |
| 45 | 10.6 Printed boards – flexible and rigid 10.6.1 Printed board 10.6.2 PCB acceptability 10.6.3 Layout 10.6.4 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 |
| 47 | 10.10 Cooling and ventilation 10.11 Materials and finishes 10.12 Reworking, modification and repair of electronic assemblies 11 Safety 11.1 General 11.2 Requirements 11.3 Fire behaviour requirements |
| 48 | 11.4 Functional safety 11.5 Personnel safety 12 Documentation 12.1 General 12.2 Supply and storage of documentation 12.3 Datasheet |
| 51 | 12.4 User manual 12.5 Equipment integration/installation documentation |
| 52 | 12.6 Commissioning documentation 12.7 Design documentation 12.7.1 General |
| 53 | 12.7.2 Block diagrams 12.7.3 Wiring diagrams 12.7.4 Interface specification 12.7.5 Internal interface specification 12.7.6 Equipment drawings 12.7.7 Documentation – Hardware 12.7.7.1 General 12.7.7.2 Manufacturing data 12.7.7.3 Programmable component (FPGA, PLD, ASIC, etc.) |
| 54 | 12.7.8 Non repairable items list 12.7.9 Repair and Maintenance Documentation 12.7.9.1 General |
| 55 | 12.7.9.2 Circuit diagrams 12.7.9.3 Component lists 12.7.9.4 Component layout 12.7.9.5 Special maintenance tool 12.7.10 Documentation – Software |
| 56 | 12.7.11 Documentation – System 13 Testing 13.1 General 13.2 Categories of tests 13.2.1 General |
| 57 | 13.2.2 Type tests 13.2.3 Routine tests 13.2.4 Investigation tests 13.3 Tests summary |
| 58 | 13.4 Test specification 13.4.1 Visual inspection 13.4.2 Performance test |
| 59 | 13.4.3 Power supply test 13.4.3.1 General 13.4.3.2 Supply variations |
| 60 | 13.4.3.3 Temporary supply dips 13.4.3.4 Interruptions of voltage supply |
| 61 | 13.4.3.5 Supply change-over |
| 62 | 13.4.4 Low temperature start-up test |
| 63 | 13.4.5 Dry heat test 13.4.5.1 General |
| 64 | 13.4.5.2 Dry heat thermal test — Cycle A |
| 65 | 13.4.5.3 Dry heat thermal test — Cycle B |
| 66 | 13.4.5.4 Dry heat thermal test – Cycle C 13.4.6 Low temperature storage test |
| 67 | 13.4.7 Cyclic damp heat test |
| 69 | 13.4.8 Electromagnetic compatibility test 13.4.9 Insulation test 13.4.9.1 General 13.4.9.2 Insulation measurement test |
| 70 | 13.4.9.3 Voltage withstand test 13.4.10 Salt mist test |
| 71 | 13.4.11 Vibration and shock test 13.4.11.1 General 13.4.11.2 Simulated long life testing 13.4.11.3 Shock testing 13.4.11.4 Functional random vibration test 13.4.12 Enclosure protection test (IP code) |
| 72 | 13.4.13 Stress screening test 13.4.14 Rapid Temperature variation test |
| 73 | Annex A (informative)List of default requirements of EN 50155 and related clauses |
| 74 | Annex B (informative)Testing approach B.1 General B.2 Situation of applicability B.3 General methodology |
| 76 | B.4 Equipment Specific Methodology B.5 Equipment integration design review B.6 Equipment integration type test B.7 Equipment installation design review |
| 77 | B.8 Equipment installation type test B.9 Equipment installation routine test B.10 Equipment periodic re-verification B.11 Replacement of items and ancillary components |
| 78 | Annex C (informative)Severity of the service conditions in different rolling stock 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 |
| 80 | C.5 Severity of the service conditions in different rolling stock locations |
| 82 | Annex D (informative)Example of test report compliance summary |
| 84 | Annex E (informative)Life cycle model examples — Programmable component life cycle example |
| 85 | Annex F (informative)Design guidelines for electronic hardware used on board of rolling stock F.1 Purpose of this annex F.2 Design Rules F.2.1 Pollutants F.2.2 Methods against ageing regarding energetic transient pulses |
| 86 | F.2.3 Capacitor to ground/earth F.2.4 Inside cabling for equipment F.2.5 Earthing configuration |
| 87 | F.2.6 Prototype testing F.2.7 Interfacing F.2.8 Solder joint on PBA F.2.9 Derating |
| 98 | Annex G (informative)Non-railway designed electronic equipment |
| 100 | Annex H (informative)Paragraphs with Agreements between the involved Parties |
| 104 | Annex ZA (informative)Relationship between this European Standard and the Essential Requirements of EU Directive 2008/57/EC |
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