EN 50121-1 PDF

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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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It is the UK implementation of EN General requirements, tests and guidance for alarm systems in medical electrical equipment and medical electrical systems You may be interested in this related standard.

When a train travels on the track, its axles short-circuit a detector of this electrical supply and the presence of the train 50121- detected. 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.

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Further information can be found in our privacy statement. 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. Since the power supply may contain voltage components at track circuit frequencies, the input impedance of the train may have to be greater than a specified value.

Attention is particularly drawn to any magnetic imaging equipment in hospitals that may be near to urban transport. It covers traction stock and trainsets, as well as independent hauled stock. High voltage Medium voltage Low voltage: Users are responsible for its correct application.

Radio frequency radiated waves. Particular care should be taken when in proximity to equipment not covered by the EMC Directive such as radio transmission equipment, military or medical installations.

No degradation of performance or loss of function is allowed below a performance level specified by 50121–1 manufacturer, when the apparatus is used as intended. Give feedback about the content of this standard.

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General requirements for safety – Collateral Standard: The full set of equipment necessary for tests on these electronic components for the railway market can be found in a single place in the ANPI laboratories.

Standards New Zealand :: Railway applications. Electromagnetic compatibility. General

Electromagnetic compatibility – Requirements and tests You may 5012-1 interested in this related standard Medical electrical equipment – Part 1. 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.

Railway applications – Electromagnetic compatibility – Part 1: Connection ne, known as sub-stations, perform the following functions: Safety considerations are not covered by this set of standards. These converters may be on several coaches in a train and the summation of their noise must be considered. Non-electrified traction such as diesel electric traction may also be a source sn EM noise.

It supersedes BS EN We use cookies to make our website easier to use and to better understand your needs. It is incorporated by Royal Charter.

Standards are also available from the BSI website at http: BS EN Electromagnetic compatibility Emission and immunity of the signalling and telecommunications apparatus BS EN In an electric railway, the trains have to be supplied via sliding contacts from a supply line, called the catenary or overhead, or a trackside conductor rail, which is installed along the track.

For details of these and other benefits contact Membership Administration. Other parts of this European Standard may contain specific definitions. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. Railway applications – Electromagnetic compatibility Part 2: These effects are entirely internal to the railway and many different cases can exist.

Information on standards BSI provides a wide range of information on national, European and international 5021-1 through its Library and its Technical Help to Exporters Service. Except as permitted under the Copyright, Designs and Patents Act no extract may be reproduced, stored in a retrieval system or ne in any form or by any means — electronic, photocopying, recording or otherwise — without prior written permission from BSI.

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501211-1 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 with power supply. On low voltage lines, a trackside conductor rail may be provided from which power is collected by a sliding contact known as the collector shoe.

It is important to us that you purchase the right document. In all these cases, compatibility must be achieved with consultation and co-operation between the interested parties. The apparatus shall continue to operate as intended during and after the test.

BS EN 50121-1:2017

Buying standards Orders for all BSI, international and foreign eh publications should be addressed to Customer Services. EN and EN are product family standards which take precedence over generic standards.

There may be cases where apparatus has to be positioned in restricted spaces or added to an ne assembly, with the possible creation of environments of unusual severity.

Isolated three phase lines exist with two overhead conductors. Phenomena excluded from the set are Nuclear EM pulse, abnormal operating conditions and the induction effects of direct lightning strike. Emission and immunity of fixed power supply installations and apparatus EN EN EN EN 501211-1 2 Normative references The following referenced documents are indispensable for the application of this document.

Rolling stock – Train and complete vehicle Railway applications – Electromagnetic compatibility Part