BS EN 50121-1:2015
$102.76
Railway applications. Electromagnetic compatibility – General
| Published By | Publication Date | Number of Pages |
| BSI | 2015 | 18 |
This Part 1 of the European standards series EN 50121 outlines the structure and the content of the whole set.
It specifies the performance criteria applicable to the whole standards series.
Clause 4 provides information about the EMC management.
This part alone is not sufficient to give presumption of conformity to the essential requirements of the EMC-Directive and is intended to be used in conjunction with other parts of this standard.
Annex A describes the characteristics of the railway system which affect electromagnetic compatibility (EMC) behaviour.
Phenomena excluded from the set are Nuclear EM pulse, abnormal operating conditions (e.g. fault conditions) and the induction effects of direct lightning strike.
Emission limits at the railway system boundary do not apply to intentional transmitters within the railway system boundaries.
Safety considerations are not covered by this set of standards.
The biological effects of non-ionising radiation as well as apparatus for medical assistance, such as pacemakers, are not considered here.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | Contents |
| 5 | Foreword – deleting of references to 91/440/EEC and EN 50238 (Clause 4). |
| 6 | Introduction Part 1: General: This part gives a description of the electromagnetic behaviour of a railway system; it specifies the performance criteria for the whole set. A management process to achieve EMC at the interface between the railway infrastructure and… |
| 7 | Part 2: Emission of the whole railway system to the outside world: This part sets the emission limits from the railway system to the outside world at radio frequencies. It defines the applied test methods and gives information on typical field stren… Part 3-1: Rolling stock – Train and complete vehicle: This part specifies the emission and immunity requirements for all types of rolling stock. It covers traction rolling stock and trainsets, as well as independent hauled rolling stock. The scope o… Part 3-2: Rolling stock – Apparatus: This part applies to emission and immunity aspects of EMC for electrical and electronic apparatus intended for use on railway rolling stock. It is also used as a means of dealing with the impracticality of immuni… Part 4: Emission and immunity of the signalling and telecommunications apparatus: This part specifies limits for electromagnetic emission and immunity for signalling and telecommunications apparatus installed within a Railway system. The EMC plan ha… Part 5: Emission and immunity of fixed power supply installations and apparatus: This part applies to emission and immunity aspects of EMC for electrical and electronic apparatus and components intended for use in railway fixed installations associa… |
| 8 | 1 Scope 2 Abbreviations Other parts of this European Standard may contain specific definitions. 3 Performance criteria NOTE This clause is based on EN 61000-6-2:2005. |
| 9 | 4 Management of EMC |
| 10 | Annex A (informative) The railway system A.1 Introduction A.3 Principal electromagnetic phenomena for immunity A.3.1 Conducted low frequency phenomena |
| 11 | A.3.2 Low frequency field phenomena Magnetic fields, both steady and transient. Electric fields. Unidirectional and oscillatory transients, as single events or repetitive bursts. Induced currents. Electrostatic discharge. A.3.4 Radiated high frequency phenomena Magnetic fields. Electric fields. Radio frequency radiated waves. A.5 Description of the different electric traction systems Direct current and alternating current sources are used. Isolated three phase lines exist with two overhead conductors. A.6 Components of electric traction systems |
| 12 | A.7.1 Static elements |
| 13 | A.7.5 Traction return current with respect to track circuits A.8 Summary of main characteristics of railway systems |
| 15 | Bibliography |
