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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Railway electronics | ANPI

Based on the General data protection regulation, cookies are regarded as personal data. Your shopping cart is empty. Clause 5 provides information about the EMC management. This auxiliary current may return to the locomotive via the rails and hence have an influence on apparatus on the track. Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards.

General requirements, tests and guidance for alarm systems in medical electrical equipment and medical electrical systems You may be interested in this related standard. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. For details of these and other benefits contact Membership Administration.

An overhead line can act as an antenna; auxiliary apparatus on traction vehicles may have relatively high power rating and must be considered as a source of noise; the sliding contact between the line and the pantograph or shoe and rail.

Radio frequency radiated waves. Emission and immunity 5011-1 the signalling and telecommunications apparatus. The compatibility between railway emissions and their external environment is based upon emission limits from the railways being set by considering the results from measurements at the time that the EMC Directive became enforceable. If you need help with the purchase or have any queries please ne enquiries standards.

This creates an interface between these two entities. The variety and the diversity of the apparatus within the scope of this set of standards makes it difficult to define precise criteria for the evaluation of the immunity test results.

This publication does not purport to include all the necessary provisions of a contract. Customers who bought this product also bought BS EN It is also used as a means of dealing with the impracticality of immunity testing a complete vehicle. Electromagnetic 501221-1 Rolling stock. Attention is particularly drawn to any magnetic imaging equipment in hospitals that may be near to urban transport.


Standards are also available from the BSI website at http: It presents the UK view on standards in Europe and at the international level. This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. In all these cases, compatibility must be achieved with consultation 05121-1 co-operation between the interested parties. Privacy Terms of Use Sitemap. General This document has been re-assessed by the committee, and judged to still be up to date.

The standard cannot cover all the possible configurations of apparatus, but the test levels are sufficient to achieve satisfactory EMC in the majority of cases.

In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested. It is important to us that you purchase the right document. Railway applications – Electromagnetic compatibility Part 2: Phenomena excluded from the set are Nuclear EM pulse, abnormal operating conditions and the induction effects of direct lightning strike.

It is the UK implementation of EN You may find similar items within these categories by selecting from the choices below:. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained.

Take the smart route to manage medical device compliance. It is produced transiently at substations when high voltage switching takes place, is distributed along the overhead when it is energised, is enhanced when non-linear traction loads such as rectifiers are supplied, and is stimulated locally when flashover takes place.

Throughout the set of standards, the immunity levels are chosen to ensure a reasonable level of EMC with other apparatus within the local railway environment and with emissions which enter the railway from the outside world. No degradation of performance or loss of function is allowed below a performance level specified by the manufacturer, when the apparatus is used as intended.


The biological effects of non-ionizing radiation as well as apparatus for medical assistance, such e pacemakers, are not considered here. Although of 501221-1 low power, these elements are close to the line and may affect other railway apparatus. Revisions British Standards are updated by amendment or revision.

Railway applications – Electromagnetic compatibility – Part 1: General

When a train travels on the track, its axles short-circuit a detector of this electrical supply and the presence of 501211- train is detected. 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 associated 550121-1 power supply. For example, the passage of the railway line close to a high power radio transmitter which produces abnormally high field strengths.

BS EN Medical electrical equipment – Part 1. Track circuits take sn forms with some having frequency and time coding to reduce the risk of false energisation.

Copyright Copyright subsists in all BSI publications. This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3. Railway applications – Electromagnetic compatibility – Part 1: These effects are local and attenuate rapidly with distance; partial flashovers across dry bands of polluted insulator surfaces. General requirements for safety – Collateral Standard: 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.

Along with these technical constraints, there is a particular additional requirement in the railway industry: For dated references, only the edition cited applies.