EN 50121-1 PDF

Buy EN Railway Applications – Electromagnetic Compatibility – Part 1: General from SAI Global. Railway applications – Electromagnetic compatibility – Part 1: General; German version EN BS EN Railway applications. Electromagnetic compatibility. General. standard by British-Adopted European Standard, 01/31/.

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We use cookies to make our website easier to use and to better understand your needs. Details are given in annex A. Rolling stock – Train and complete vehicle Railway applications – Electromagnetic compatibility Part BS EN 1 Moreover, the high level of service quality proven by BELAC accreditation in this field makes our laboratories especially attractive for this industry.

Low frequency noise can be significant within a wide zone, up to 3 km or more if the ground resistivity is high. Emission of the whole railway system to the outside world Railway applications – Electromagnetic compatibility Part The apparatus shall continue to operate as intended during and after the test.

Home Laboratory tests Railway electronics Railway electronics. Various BSI electronic information services are also available which give details on all its products and services.

We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Customers who bought this product also bought BS EN Hence, problems of EMC arise not only within the locomotive and the power supply but also in these associated systems.

EVS-EN 50121-1:2017

All cases shall be considered with respect to a formal plan for the management of EMC. The resolution of this is a matter for discussion between the equipment supplier and the project manager, infrastructure controller or equivalent. Among the phenomena which are involved in RF emission are: Privacy Terms of Use Sitemap.


It is also used as a means of dealing with the impracticality of immunity testing a complete vehicle. The current generally returns to the substation via the rails, a separate return conductor or via the earth. Follow these links to find other Standards similar to the one you are viewing. It supersedes BS EN Emission and immunity of the signalling and telecommunications apparatus Railway applications – Electromagnetic compatibility Part 5: It is not, therefore, possible to establish immunity tests and limits for these large assemblies.

Emission limits at the railway system boundary do not apply to intentional transmitters within the railway een boundaries.

Refer to EN for defining the management process to comply with this requirement. The Electronic Components EMC department of the ANPI laboratories conducts tests on components installed on trains and along the tracks, in accordance with the following standards. This prevents the passage of currents at track een frequencies in the running rails.

BS EN – Railway applications. Electromagnetic compatibility. General

Apparatus BS EN Limits are also placed on EM emission by railways into the outside world. The biological effects of non-ionising radiation as well as apparatus for medical assistance, such as pacemakers, are not considered here.

This auxiliary 5021-1 may return to the locomotive via the rails and hence have an influence on apparatus on the track. International Classification for Standards ICS is an international classification system for technical standards.

BS EN 50121-1:2017

No degradation of 50112-1 or loss of function is allowed below a performance level specified by the manufacturer, when the apparatus is used as intended. Railway applications – Electromagnetic compatibility Part 2: This collection is via a series of short arcs which act as radio sources; special case arcing and transients which are produced when the pantograph is raised or lowered, or the vehicle circuit breaker is closed or opened.


Compliance with a British Standard cannot confer immunity from legal obligations.

When a train travels on the track, its axles short-circuit a detector of this electrical supply and the presence of the train is detected. Along with these technical constraints, there is a particular additional requirement in the railway industry: It is produced transiently at substations when high voltage switching takes place, is distributed along the overhead eh it fn energised, is enhanced when non-linear traction loads such as rectifiers are supplied, and is stimulated locally when flashover takes place.

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The railway is an integrated system in which electricity has many uses in addition to train propulsion including: Accept and continue Learn more about the cookies we use and how to change your settings. The traction and auxiliary equipment on the vehicle and the substations shall not ne currents at track circuit frequencies which exceed specified values.

List of EN standards – Wikipedia

Skip to main content. The market for on-board electrical equipment on trains and for signalling ej installed alongside the tracks is especially demanding because of: Dn also holds the copyright, in the UK, of the publications of the international standardization bodies. Your shopping cart is empty. Except as permitted under the Copyright, Designs and Patents Act no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means — electronic, photocopying, recording or otherwise — without prior written permission from BSI.

It consists of five parts described at the end of this introduction.