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IEC 60571 Edition 3.0 2012-09 INTERNATIONAL STANDARD NORME INTERNATIONALE Railw

IEC 60571 Edition 3.0 2012-09 INTERNATIONAL STANDARD NORME INTERNATIONALE Railway applications – Electronic equipment used on rolling stock Applications ferroviaires – Equipements électroniques utilisés sur le matériel roulant INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE X ICS 45.060 PRICE CODE CODE PRIX ISBN 978-2-83220-411-5 ® Registered trademark of the International Electrotechnical Commission Marque déposée de la Commission Electrotechnique Internationale ® Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé. This is a preview - click here to buy the full publication – 2 – 60571 © IEC:2012 CONTENTS FOREWORD ........................................................................................................................... 6 1 Scope ............................................................................................................................... 8 2 Normative references ........................................................................................................ 8 3 Terms and definitions ..................................................................................................... 10 4 Environmental service conditions of operation ................................................................. 12 4.1 Normal service conditions ...................................................................................... 12 4.1.1 Altitude ...................................................................................................... 12 4.1.2 Ambient temperature ................................................................................. 12 4.1.3 Shock and vibration ................................................................................... 13 4.1.4 Relative humidity ....................................................................................... 13 4.2 Special service conditions ...................................................................................... 13 4.2.1 General ..................................................................................................... 13 4.2.2 Atmospheric pollutants ............................................................................... 13 5 Electrical service conditions ............................................................................................ 13 5.1 Power supply ......................................................................................................... 13 5.1.1 Supply from accumulator battery ................................................................ 13 5.1.2 Supply by a static converter or a rotating set .............................................. 15 5.1.3 Supply change over ................................................................................... 15 5.1.4 Supply with overhead line or third rail ......................................................... 15 5.2 Supply overvoltages ............................................................................................... 15 5.3 Installation ............................................................................................................. 15 5.4 Surges, electrostatic discharge and transient burst susceptibility tests .................... 16 5.5 Electromagnetic compatibility ................................................................................. 16 6 Reliability, maintainability and expected useful life ........................................................... 16 6.1 Equipment reliability ............................................................................................... 16 6.1.1 Predicted reliability ..................................................................................... 16 6.1.2 Proof of reliability ....................................................................................... 16 6.2 Useful life .............................................................................................................. 17 6.3 Maintainability ........................................................................................................ 17 6.4 Maintenance levels ................................................................................................ 17 6.4.1 On-vehicle diagnosis and repair ................................................................. 17 6.4.2 Off-vehicle diagnosis and repair ................................................................. 17 6.5 Built-in diagnostics................................................................................................. 17 6.6 Automatic test equipment....................................................................................... 18 6.7 Alternative methods for fault diagnosis ................................................................... 18 6.8 Purpose built test equipment and special tools ....................................................... 18 7 Design ............................................................................................................................ 18 7.1 General ................................................................................................................. 18 7.1.1 Quality management .................................................................................. 18 7.1.2 Life cycle ................................................................................................... 19 7.2 Detailed practices – Hardware ............................................................................... 19 7.2.1 Interfacing ................................................................................................. 19 7.2.2 Fault protection .......................................................................................... 19 7.2.3 Referencing power supplies ....................................................................... 21 This is a preview - click here to buy the full publication 60571 © IEC:2012 – 3 – 7.2.4 Interchangeability ....................................................................................... 21 7.2.5 Reduction of supply voltage ....................................................................... 21 7.2.6 Polarity reversal ......................................................................................... 21 7.2.7 Inrush currents .......................................................................................... 21 7.2.8 Spare capacity ........................................................................................... 21 7.3 Detailed practices – Software ................................................................................. 21 7.3.1 General ..................................................................................................... 21 7.3.2 Software design measures ......................................................................... 22 7.4 Equipment features ................................................................................................ 23 7.4.1 General ..................................................................................................... 23 7.4.2 Memory checking ....................................................................................... 23 7.4.3 Self-test ..................................................................................................... 23 7.4.4 Watchdog .................................................................................................. 24 7.4.5 Error indication .......................................................................................... 24 7.4.6 Recovery ................................................................................................... 24 8 Components ................................................................................................................... 24 8.1 Procurement .......................................................................................................... 24 8.2 Application ............................................................................................................. 25 9 Construction ................................................................................................................... 25 9.1 Equipment construction ......................................................................................... 25 9.1.1 General ..................................................................................................... 25 9.1.2 Mechanical protection ................................................................................ 25 9.1.3 Polarisation or coding ................................................................................ 25 9.1.4 Dimensional requirements .......................................................................... 25 9.1.5 Sockets and connectors ............................................................................. 25 9.2 Component mounting ............................................................................................. 26 9.2.1 General ..................................................................................................... 26 9.2.2 Layout ....................................................................................................... 26 9.2.3 Fixing ........................................................................................................ 26 9.2.4 Component terminations ............................................................................ 26 9.2.5 Pre-set control ........................................................................................... 26 9.2.6 Select on test (SOT) components ............................................................... 26 9.3 Electrical connections ............................................................................................ 27 9.3.1 General ..................................................................................................... 27 9.3.2 Soldered connections ................................................................................. 27 9.3.3 Crimped connections ................................................................................. 27 9.3.4 Wire wrap connections ............................................................................... 27 9.3.5 Other connections ...................................................................................... 27 9.4 Internal flexible wiring (electrical and optical) ......................................................... 27 9.5 Flexible printed wiring ............................................................................................ 28 9.6 Printed boards – flexible and rigid .......................................................................... 28 9.6.1 Printed board types .................................................................................... 28 9.6.2 Procurement .............................................................................................. 28 9.6.3 Layout ....................................................................................................... 28 9.6.4 Materials .................................................................................................... 28 9.7 Protective coatings for printed board assemblies .................................................... 29 9.8 Identification .......................................................................................................... 29 9.8.1 Bare printed board identification ................................................................. 29 9.8.2 Identification of subracks and printed board assemblies ............................. 29 This is a preview - click here to buy the full publication – 4 – 60571 © IEC:2012 9.8.3 Mounting position of subracks and printed board assemblies ...................... 29 9.8.4 Fuse and battery identification .................................................................... 29 9.9 Mounting ............................................................................................................... 30 9.10 Cooling and ventilation ........................................................................................... 30 9.11 Materials and finishes ............................................................................................ 30 10 Safety ............................................................................................................................. 30 10.1 Introductory remarks .............................................................................................. 30 10.2 General ................................................................................................................. 31 10.3 Functional safety ................................................................................................... 31 10.4 Personnel safety .................................................................................................... 31 11 Documentation ............................................................................................................... 31 11.1 General ................................................................................................................. 31 11.2 Supply and storage of documentation ..................................................................... 31 11.3 Hardware and software documentation................................................................... 31 11.3.1 General ..................................................................................................... 31 11.3.2 Hardware documentation ........................................................................... 31 11.3.3 Software documentation ............................................................................. 32 11.4 Documentation requirements ................................................................................. 32 11.4.1 Documents ................................................................................................ 32 11.4.2 Circuit diagrams ......................................................................................... 33 11.4.3 Component lists ......................................................................................... 33 11.4.4 Component layout ...................................................................................... 33 11.4.5 Block diagrams .......................................................................................... 33 11.4.6 Wiring diagrams ......................................................................................... 33 11.4.7 Interconnection diagrams ........................................................................... 34 11.4.8 Equipment drawings ................................................................................... 34 12 Testing ........................................................................................................................... 34 12.1 Categories of tests................................................................................................. 34 12.1.1 General ..................................................................................................... 34 12.1.2 Type tests .................................................................................................. 34 12.1.3 Routine tests ............................................................................................. 35 12.1.4 Investigation tests ...................................................................................... 35 12.2 List of tests ............................................................................................................ 35 12.2.1 General ..................................................................................................... 35 12.2.2 Visual inspection ........................................................................................ 35 12.2.3 Performance test ....................................................................................... 36 12.2.4 Cold start test ............................................................................................ 36 12.2.5 Dry heat test .............................................................................................. 37 12.2.6 Damp heat test, cyclic ................................................................................ 37 12.2.7 Supply overvoltage ..................................................................................... 38 12.2.8 Surges, electrostatic discharge (ESD) and transient burst susceptibility tests ...................................................................................... 39 12.2.9 Radio frequency test .................................................................................. 40 12.2.10 Insulation test ............................................................................................ 40 12.2.11 Salt mist test .............................................................................................. 42 12.2.12 Vibration, shock and bump test .................................................................. 42 12.2.13 Watertightness test .................................................................................... 42 12.2.14 Equipment stress screening ....................................................................... 43 12.2.15 Low temperature storage test ..................................................................... 43 This is a preview - click here to buy the full publication 60571 © IEC:2012 – 5 – Annex A (informative) List of subclauses in which agreement between the parties (e.g. user and manufacturer) is mentioned .................................................................................... 44 Bibliography .......................................................................................................................... 45 Figure 1 – System interfacing with the typical EMC areas A, B and C ..................................... 20 Figure 2 – Supply overvoltage ............................................................................................... 39 Table 1 – Ambient temperature ............................................................................................. 12 Table 2 – List of tests ............................................................................................................ 35 This is a preview - click here to buy the full publication – 6 – 60571 © IEC:2012 INTERNATIONAL ELECTROTECHNICAL COMMISSION ____________ RAILWAY APPLICATIONS – ELECTRONIC EQUIPMENT USED ON ROLLING STOCK FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non- governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60571 has been prepared by IEC technical committee uploads/s1/international-standard-norme-internationale 9 .pdf