1、BRITISH STANDARDBS EN 50121-4:2006Railway applications Electromagnetic compatibility Part 4: Emission and immunity of the signalling and telecommunications apparatusThe European Standard EN 50121-4:2006 has the status of a British StandardICS 29.020; 29 280; 45.020 g49g50g3g38g50g51g60g44g49g42g3g58
2、g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 50121-4:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 August
3、2006 BSI 2006ISBN 0 580 49108 0National forewordThis British Standard was published by BSI. It is the UK implementation of EN 50121-4:2006. It supersedes BS EN 50121-4:2000 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee GEL/9, Railway electrotechnical
4、 applications. 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
5、 from legal obligations.Amendments issued since publicationAmd. No. Date Comments EUROPEAN STANDARD EN 50121-4 NORME EUROPENNE EUROPISCHE NORM July 2006 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechn
6、ische Normung 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 50121-4:2006 E ICS 29.020; 29.280; 45.020 Supersedes EN 50121-4:2000English version Railway applications
7、 - Electromagnetic compatibility Part 4: Emission and immunity of the signalling and telecommunications apparatus Applications ferroviaires - Compatibilit lectromagntique Partie 4: Emission et immunit des appareils de signalisation et de tlcommunication Bahnanwendungen - Elektromagnetische Vertrglic
8、hkeit Teil 4: Straussendungen und Strfestigkeit von Signal- und Telekommunikationseinrichtungen 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
9、 the status of a national standard without any alteration. 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,
10、 German). A version in any other language made by translation 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, Cyp
11、rus, the Czech Republic, Denmark, Estonia, Finland, France, 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 Stand
12、ard was prepared by Technical Committee TC 9X: Electrical and electronic applications for railways. The text of the draft was submitted to the formal vote and was approved by CENELEC as EN 50121-4 on 2006-07-01. This European Standard supersedes EN 50121-4:2000. This European Standard is to be read
13、in conjunction with EN 50121-1. This standard forms Part 4 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 Par
14、t 3-1 : Rolling stock - Train and complete vehicle Part 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 wh
15、ich the EN has to be implemented at national level by 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 gi
16、ven to CENELEC by the European Commission and the European Free Trade Association and covers essential requirements of EC Directive 89/336/EEC. See Annex ZZ. _ EN 50121-4:2006 Contents Introduction.4 1 Scope .4 2 Normative references.5 3 Definitions.6 4 Description of location .6 5 Emission limits f
17、or apparatus .6 6 Immunity.7 6.1 Performance criteria. 7 6.2 Test requirements . 7 Annex ZZ (informative) Coverage of Essential Requirements of EC Directives .12 Figure Figure 1 Main categories of ports . 6 Tables Table 1 Immunity Enclosure port. 8 Table 2 Immunity I/O port . 9 Table 3 Immunity D.C.
18、 power ports . 10 Table 4 Immunity A.C. power ports . 11 Table 5 Immunity Earth port . 11 EN 50121-4:2006 Introduction This European Standard has been prepared in the form of a Product Standard. It defines the immunity and emission test requirements for apparatus defined in the scope in relation to
19、the electromagnetic disturbances likely to be experienced in the railway. In particular, the test requirements represent the essential electromagnetic immunity requirements and have been selected to ensure an adequate level of immunity for apparatus installed in the railway locations. Test requireme
20、nts are specified for each port considered. Safety considerations are not covered by this standard. In special situations, where the level of disturbances may exceed the levels considered in this standard, e.g. at a special location or where a hand held transmitter is used in very close proximity to
21、 an apparatus, special mitigation measures may have to be employed. 1 Scope This European Standard applies to signalling and telecommunication apparatus which is installed in the railway environment. Signalling and telecommunication apparatus mounted in vehicles is covered by EN 50121-3-2. This stan
22、dard specifies limits for emission and immunity and provides performance criteria for signalling and telecommunications (S&T) apparatus which may interfere with other apparatus in the railway environment, or increase the total emissions for the railway environment beyond the limits defined in the ap
23、propriate standard and so risk causing Electro-Magnetic Interference (EMI) to apparatus outside the railway system. Apparatus which complies with the emission levels of EN 61000-6-4 will meet the emission requirements of this standard provided that emissions from any d.c. power port are within the e
24、missions limits specified for a.c. power ports. The immunity levels of EN 61000-6-2 will also be adequate except for the special case of apparatus as defined in note 1 of Table 1. This standard provides the immunity requirements for such apparatus. The immunity levels given for the apparatus will in
25、 most cases allow the apparatus to perform as intended in the railway environment (see note). The immunity level establishes a common reference for evaluating the performance of the apparatus when subject to interference resulting from direct exposure of the apparatus and associated cables to a radi
26、o frequency field, or by coupling of the interference from a remote source. If a port is intended to transmit or receive for the purpose of radio communication (intentional radiators. e.g. transponder systems), then the emission and immunity limits in this standard at the communication frequency do
27、not apply. The standard does not specify basic personal safety requirements for apparatus such as protection against electric shock, unsafe operation, insulation co-ordination and related dielectric tests. The requirements were developed for and are applicable to this set of apparatus when operating
28、 under normal conditions. Fault conditions of the apparatus have not been taken into account. The requirements and test methods also apply to telecommunications and signalling data and power lines connected to the equipment under test (EUT). The frequency range considered is from d.c. to 400 GHz. No
29、 measurements need to be performed at frequencies where no requirement is specified. For products in the scope of EN 61000-3-2 or EN 61000-3-3, the requirements of those standards apply. EN 50121-4:2006 Testing methods are given in the basic standards listed in Clause 2, Normative references. These
30、specific provisions are to be used in conjunction with the general provisions in EN 50121-1. NOTE The immunity and emission levels do not of themselves guarantee that the integration of apparatus will necessarily be satisfactory. The standard cannot cover all the possible configurations of the appar
31、atus, but the test levels are sufficient to achieve satisfactory EMC in the majority of cases. 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 ed
32、ition of the referenced document (including any amendments) applies. EN 50121-1 Railway applications Electromagnetic compatibility Part 1: General EN 50121-3-2 Railway applications Electromagnetic compatibility Part 3-2: Rolling stock Apparatus EN 61000-3-2 Electromagnetic compatibility (EMC) Part 3
33、-2: Limits Limits for harmonic current emissions (equipment input current up to and including 16 A per phase) (IEC 61000-3-2) EN 61000-3-3 Electromagnetic compatibility (EMC) Part 3-3: Limits Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems, for eq
34、uipment with rated current 16 A per phase and not subject to conditional connection (IEC 61000-3-3) EN 61000-4-1 Electromagnetic compatibility (EMC) Part 4-1: Testing and measurement techniques Overview of IEC 61000-4 series (IEC 61000-4-1) EN 61000-4-2 Electromagnetic compatibility (EMC) Part 4-2:
35、Testing and measurement techniques Electrostatic discharge immunity test (IEC 61000-4-2) EN 61000-4-3 Electromagnetic compatibility (EMC) Part 4-3: Testing and measurement techniques Radiated, radio-frequency, electromagnetic field immunity test (IEC 61000-4-3) EN 61000-4-4 Electromagnetic compatibi
36、lity (EMC) Part 4-4: Testing and measurement techniques Electrical fast transient/burst immunity test (IEC 61000-4-4) EN 61000-4-5 Electromagnetic compatibility (EMC) Part 4-5: Testing and measurement techniques Surge immunity test (IEC 61000-4-5) EN 61000-4-6 Electromagnetic compatibility (EMC) Par
37、t 4-6: Testing and measurement techniques Immunity to conducted disturbances, induced by radio-frequency fields (IEC 61000-4-6) EN 61000-4-8 Electromagnetic compatibility (EMC) Part 4-8: Testing and measurement techniques Power frequency magnetic field immunity test (IEC 61000-4-8) EN 61000-4-9 Elec
38、tromagnetic compatibility (EMC) Part 4-9: Testing and measurement techniques Pulse magnetic field immunity test (IEC 61000-4-9) EN 61000-6-2 Electromagnetic compatibility (EMC) Part 6-2: Generic standards Immunity for industrial environments (IEC 61000-6-2) EN 50121-4:2006 EN 61000-6-4 Electromagnet
39、ic compatibility (EMC) Part 6-4: Generic standards Emission standard for industrial environments (IEC 61000-6-4, mod.) 3 Definitions For the purpose of this Part 4 of the European Standard, the following definitions apply. 3.1 port particular interface of the specified apparatus with the external en
40、vironment e.g. a.c. power port, d.c. power port, I/O (input/output) port, earth port 3.2 enclosure port physical boundary of the apparatus through which electromagnetic fields may radiate or impinge Enclosure port a.c. power port I/O port d.c. power port APPARATUS earth port Figure 1 Main categories
41、 of ports 4 Description of location The railway environment is characterised as described in EN 50121-1. Special consideration is given in this standard to apparatus intended to be installed within 3 m of the centreline of the nearest track and as defined in note 1 of Table 1. NOTE Tests covering co
42、mpat bility with specific items of signalling equipment may be required. 5 Emission limits for apparatus The maximum emissions permitted by EN 61000-6-4 shall be complied with. The conducted emission limits shall apply to both a.c. and d.c. power ports. A measurement distance of 10 m may be used wit
43、h the limits increased by 10 dB for the radiated emission of the enclosure port. Where the apparatus is intended to be used in an environment other than the railway environment, then the emission limits given in the appropriate standards shall apply. If the field-strength measurement at 10 m or 30 m cannot be made because of high ambient noise levels, or for other reasons, measurements may be made at a closer distance, f
