1、BRITISH STANDARDBS EN 50121-2:2006Railway applications Electromagnetic compatibility Part 2: Emissions of the whole railway system to the outside worldThe European Standard EN 50121-2:2006 has the status of a British StandardICS 29.020; 29.280; 45.020g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56
2、g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 50121-2:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 September 2006 BSI 200
3、6ISBN 0 580 49113 7National forewordThis British Standard was published by BSI. It is the UK implementation of EN 50121-2:2006. It supersedes BS EN 50121-2:2000 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee GEL/9, Railway electrotechnical applicatio
4、ns.A list of organizations represented on GEL/9 can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal
5、obligations.Amendments issued since publicationAmd. No. Date Comments EUROPEAN STANDARD EN 50121-2 NORME EUROPENNE EUROPISCHE NORM July 2006 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normun
6、g Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50121-2:2006 E ICS 29.020; 29.280; 45.020 Supersedes EN 50121-2:2000English version Railway applications - Electroma
7、gnetic compatibility Part 2: Emission of the whole railway system to the outside world Applications ferroviaires - Compatibilit lectromagntique Partie 2: Emission du systme ferroviaire dans son ensemble vers le monde extrieur Bahnanwendungen - Elektromagnetische Vertrglichkeit Teil 2: Straussendunge
8、n des gesamten Bahnsystems in die Auenwelt This European Standard was approved by CENELEC on 2006-07-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any altera
9、tion. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by tra
10、nslation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, the Czech Republic, Denmark, Estonia, Finland, F
11、rance, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Foreword This European Standard was prepared by Technical Committee TC 9X: Electr
12、ical and electronic applications for railways. The text of the draft was submitted to the formal vote and was approved by CENELEC as EN 50121-2 on 2006-07-01. This European Standard supersedes EN 50121-2:2000. This European Standard is to be read in conjunction with EN 50121-1. This standard forms P
13、art 2 of the European Standard series EN 50121, published under the general title Railway applications - Electromagnetic compatibility. The series consists of: Part 1 : General Part 2 : Emission of the whole railway system to the outside world Part 3-1 : Rolling stock - Train and complete vehicle Pa
14、rt 3-2 : Rolling stock - Apparatus Part 4 : Emission and immunity of the signalling and telecommunications apparatus Part 5 : Emission and immunity of fixed power supply installations and apparatus The following dates were fixed: latest date by which the EN has to be implemented at national level by
15、 publication of an identical national standard or by endorsement (dop) 2007-07-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2009-07-01 This European Standard has been prepared under a mandate given to CENELEC by the European Commission and the Eur
16、opean Free Trade Association and covers essential requirements of EC Directive 89/336/EEC. See Annex ZZ. _ 2 Contents 1 Scope . 4 2 Normative references. 4 3 Definitions. 5 4 Emission limits. 5 4.1 Emission from the open railway route during train operation . 5 4.2 Radio frequency emission from rail
17、way substations. 5 5 Method of measurement of emission from moving trains. 6 5.1 Measurement parameters. 6 5.2 Frequency selection . 8 5.3 Transients. 8 5.4 Measuring conditions . 8 5.5 Test report . 9 5.6 Antenna positions. 9 Annex A (normative) Method of measurement of electromagnetic emission fro
18、m railway substations . 15 Annex B (informative) Background to the method of measurement . 16 Annex C (informative) Cartography - Electric and Magnetic fields at traction frequencies .21 Annex ZZ (informative) Coverage of Essential Requirements of EC Directives. 22 Figure 1 - Emission limits in freq
19、uency range 9 kHz to 1 GHz . 10 Figure 2 - Emission limit for substations. 11 Figure 3 - Position of antenna for measurement of magnetic field in the 9 kHz to 30 MHz frequency band. 12 Figure 4 - Position (vertical polarisation) of antenna for measurement of electric field in the 30 MHz to 300 MHz f
20、requency band. 13 Figure 5 - Position (vertical polarisation) of antenna for measurement of electric field in the 300 MHz to 1 GHz frequency band . 14 Figure B.1 - Time variation of emissions from a moving train with many transient events . 20 Table C.1 - Typical maximum electric and magnetic field
21、values at fundamental frequency of different electrification systems . 21 3 1 Scope This European Standard sets the emission limits from the whole railway system including urban vehicles for use in city streets. It describes the measurement method to verify the emissions, and gives the cartography v
22、alues of the fields most frequently encountered. The limits refer to the particular measuring points defined in Clause 5 and Annex A. These emissions should be assumed to exist at all points in the vertical planes which are 10 m from the centre lines of the outer electrified railway tracks, or 10 m
23、from the fence of the substations. Also, the zones above and below the railway may be affected by electromagnetic emissions and particular cases shall be considered individually. These specific provisions are to be used in conjunction with the general provisions in EN 50121-1. This part of the stand
24、ard covers EMC for fixed installations and therefore is not relevant for CE marking. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of t
25、he referenced document (including any amendments) applies. EN 50121-1 Railway applications - Electromagnetic compatibility Part 1: General EN 50121-3-1 Railway applications - Electromagnetic compatibility Part 3-1: Rolling stock - Train and complete vehicle EN 50121-5 Railway applications - Electrom
26、agnetic compatibility Part 5: Emission and immunity of fixed power supply installations and apparatus EN 55016-1-1 Specification for radio disturbance and immunity measuring apparatus and methods - Part 1-1: Radio disturbance and immunity measuring apparatus - Measuring apparatus (CISPR 16-1-1) EN 5
27、5022 Information technology equipment - Radio disturbance characteristics - Limits and methods of measurement (CISPR 22, mod.) EN 61000-6-4 Electromagnetic Compatibility (EMC) Part 6-4: Generic Standards - Emission standard for industrial environments (IEC 61000-6-4, mod.) CISPR 18 Radio interferenc
28、e characteristics of overhead power lines and high voltage equipment IEC 60050 International Electrotechnical Vocabulary (IEV) 4 3 Definitions For the purpose of this Part 2 of the European Standard, the definitions of IEC 60050 and the following definitions apply. 3.1 apparatus an electric or elect
29、ronic product with an intrinsic function intended for implementation into a fixed railway installation 3.2 environment the surrounding objects or region which may influence the behaviour of the system and/or may be influenced by the system 3.3 external interface the boundary where a system interacts
30、 with any other or where a system interacts with its environment 3.4 railway substation an installation the main function of which is to supply a contact line system at which the voltage of a primary supply system, and in some cases the frequency, is transformed to the voltage and frequency of the c
31、ontact line 3.5 railway supply lines conductors running within the boundary of the railway which supply power to only the railway but are not energised at railway system voltage 4 Emission limits 4.1 Emission from the open railway route during train operation The emission limits in the frequency ran
32、ge 9 kHz to 1 GHz are given in Figure 1 and the measurement method is defined in Clause 5. For non-electrified lines, the limits are as those given for 750 V d.c. Annex C gives guidance values for typical maximum field values at fundamental frequency of different electrification systems which may oc
33、cur. They depend on numerous geometrical and operational parameters which may be obtained from the infrastructure controller. For urban vehicles operating in city streets, the emission limits given in Figure 1 for 750 V d.c. conductor rail shall not be exceeded. NOTE It is not possible to undertake
34、complete tests with quasi-peak detection due to the reasons stated in Annex B. 4.2 Radio frequency emission from railway substations Radio frequency noise emission from the railway substation to the outside environment measured according to the method defined in Annex A shall not exceed the limits i
35、n Figure 2. The limits are defined as quasi-peak values and the bandwidths are those used in EN 55016-1-1: Bandwidth frequencies up to 150 kHz 200 Hz frequencies from 150 kHz to 30 MHz 9 kHz frequencies above 30 MHz 120 kHz 5 The distance of 10 m defined in Annex A shall be measured from the fence o
36、f the substation. If no fence exists, the measurements shall be taken at 10 m from the apparatus or from the outer surface of the enclosure if it is enclosed. Emission of trains shall not enter into the measurement. NOTE For other kinds of fixed installations like auto-transformers, the same limit a
37、nd measuring distance shall be applied. 5 Method of measurement of emission from moving trains The method of measurement is adapted from the EN 55016-1-1 to a railway system with moving vehicles. The background to the method of measurement is given in Annex B. The electromagnetic fields generated by
38、 rail vehicles when operating on a railway network are measured by means of field strength meters with several different set frequencies. The horizontal component of the magnetic field perpendicular to the track and both the vertical and horizontal (parallel to the track) components of the radiated
39、electric field are measured. 5.1 Measurement parameters 5.1.1 The peak measurement method is used. The duration at selected frequency shall be sufficient to obtain an accurate reading. This is a function of the measuring set and the recommended value is 50 ms. 5.1.2 Frequency bands and bandwidths at
40、 6 dB used for measurements are in accordance with EN 55016-1-1. These are: Frequency bands: 9-150 kHz 0,15-30 MHz 30-300 MHz 300 MHz -1 GHz Bandwidth: 200 Hz 9 kHz 120 kHz 120 kHz 5.1.3 When connected to the antenna, the error of measurement of the strength of a uniform sine-wave field shall not di
41、ffer more than 4,0 dB from EN 55016-1-1 equipment. 5.1.4 The noise may not attain its maximum value as the traction vehicle passes the measuring point, but may occur when the vehicle is a long distance away. Therefore, the measuring set shall be active for a sufficient duration before and after the
42、vehicle passes by to ensure that the maximum noise level is recorded. 5.1.5 To cover the full frequency range, antennas of different design are required. Typical equipment is described below: - for 9 kHz - 30 MHz, a loop or frame antenna is used to measure H field (see Figure 3); - for 30 MHz - 300 MHz, a biconical dipole is used to measure E field (see Figure 4); - for 300 MHz - 1,0 GHz, a log-periodic antenna is used to measure E field (see Figure 5). Calibrated antenna factors are used
