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BS EN 50121-1:2017 – TC:2020 Edition

BS EN 50121-1:2017 – TC:2020 Edition

$134.27

Tracked Changes. Railway applications. Electromagnetic compatibility – General

Published By Publication Date Number of Pages
BSI 2020 35
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This European standard outlines the structure and the content of the whole set. It specifies the performance criteria applicable to the whole standards series. Clause 5 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-ionizing radiation as well as apparatus for medical assistance, such as pacemakers, are not considered here.

PDF Catalog

PDF Pages PDF Title
25 1 Scope
2 Normative references
3 Abbreviations
26 4 Performance criteria
5 Management of EMC
27 Annex A (informative)The railway system
A.1 Introduction
A.2 General coupling mechanisms
28 A.3 Principal electromagnetic phenomena for immunity
A.3.1 Conducted low frequency phenomena
A.3.2 Low frequency field phenomena
A.3.3 Conducted high frequency phenomena
A.3.4 Radiated high frequency phenomena
A.4 Principal electromagnetic phenomena for emission
A.5 Description of the different electric traction systems
29 A.6 Components of electric traction systems
A.7 Internal sources of electromagnetic noise
A.7.1 General
A.7.1.1 Static elements:
30 A.7.1.2 Mobile elements:
A.7.1.3 Auxiliary power converters:
A.7.1.4 Train line:
A.7.1.5 Traction return current with respect to track circuits:
A.7.1.6 Trackside equipment:
31 A.8 Summary of main characteristics of railway systems
A.9 External sources of disturbance

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BS EN 50121-1:2017 - TC
$134.27