1、BRITISH STANDARDBS EN 61000-4-12:2006Incorporating corrigendum no. 1Electromagnetic compatibility (EMC) Part 4-12: Testing and measurement techniques Ring wave immunity test The European Standard EN 61000-4-12:2006 has the status of a British StandardICS 33.100.20g49g50g3g38g50g51g60g44g49g42g3g58g4
2、4g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 61000-4-12:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 28 Februa
3、ry 2007 BSI 2007ISBN 978 0 580 60056 2National forewordThis British Standard is the UK implementation of EN 61000-4-12:2006. It is identical with IEC 61000-4-12:2006. It partially supersedes BS EN 61000-4-12:1996. BS EN 61000-4-12:2006 constitutes a technical revision of the characteristics and perf
4、ormance of the test equipment but addresses only the ring wave immunity test. The content of BS EN 61000-4-12:1996 regarding damped oscillatory waves is replaced by BS EN 61000-4-18:2007. The date of withdrawal of BS EN 61000-4-12:1996 is 1 March 2010 which is the date of withdrawal published in BS
5、EN 61000-4-18. For undated references to BS EN 61000-4-12, the ring wave test in BS EN 61000-4-12:2006 needs to be used after 1 November 2009. BS EN 61000-4-12:1996 may continue to be referenced for the damped oscillatory wave until 1 March 2010.The UK participation in its preparation was entrusted
6、by Technical Committee GEL/210, EMC Policy committee, to Subcommittee GEL/210/12, EMC Basic and generic standards.A list of organizations represented on GEL/210/12 can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Use
7、rs are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date Comments17250 Corrigendum No. 131 August 2007 Revision of national forewordEUROPEAN STANDARD EN 61000-4-12 NORME EUROPENNE
8、EUROPISCHE NORM December 2006 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2006 CENELEC - All rights of exploitation in any f
9、orm and by any means reserved worldwide for CENELEC members. Ref. No. EN 61000-4-12:2006 E ICS 33.100.20 Supersedes EN 61000-4-12:1995 + A1:2001English version Electromagnetic compatibility (EMC) Part 4-12: Testing and measurement techniques - Ring wave immunity test (IEC 61000-4-12:2006) Compatibil
10、it lectromagntique (CEM) Partie 4-12: Techniques dessai et de mesure - Essai dimmunit londe sinusodale amortie (CEI 61000-4-12:2006) Elektromagnetische Vertrglichkeit (EMV) Teil 4-12: Prf- und Messverfahren - Strfestigkeit gegen gedmpfte Sinusschwingungen (Ringwave) (IEC 61000-4-12:2006) This Europe
11、an Standard was approved by CENELEC on 2006-11-01. 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 alteration. Up-to-date lists and bibliographical references
12、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 translation under the responsibility of a CENELEC member
13、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, France, Germany, Greece, Hungary, Iceland, Ireland, Ita
14、ly, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Foreword The text of document 77B/509/FDIS, future edition 2 of IEC 61000-4-12, prepared by SC 77B, High frequency phenomena, of IEC TC
15、 77, Electromagnetic compatibility, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61000-4-12 on 2006-11-01. This European Standard supersedes EN 61000-4-12:1995 + A1:2001. It constitutes a technical revision of the characteristics and performance of the test equipm
16、ent. It only addresses the ring wave immunity test. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2007-08-01 latest date by which the national standards conflicting with the
17、 EN have to be withdrawn (dow) 2009-11-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61000-4-12:2006 was approved by CENELEC as a European Standard without any modification. _ 2 EN 61000-4-12:2006CONTENTS 1 2 3 4 4.1 4.2 5 6 6.1 6.2 7 7.1 7.2
18、7.3 7.4 7.5 7.6 8 8.1 8.2 9 Figure 3 Example of test set-up for table-top equipment using the ground Figure 4 Example of test set-up for floor-standing equipment using the ground Figure 7 Example of test setup for capacitive coupling on a.c. lines (3 phases) Figure 8 Example of test setup for capaci
19、tive coupling on a.c. lines (3 phases) 3 EN 61000-4-12:2006INTRODUCTION.5 Scope.6 Normative references .6 Terms and definitions .6 General 8 Description of the phenomenon .8 Relevant parameters .9 Test levels10 Test equipment.10 Test generator.10 Coupling/decoupling network specifications.13 Test se
20、t-up .14 Test of power supply ports 16 Test of input/output ports.16 Test of communication ports16 Earthing connections.16 Equipment under test 17 Coupling/decoupling networks .18 Test procedure .18 Laboratory reference conditions 19 Execution of the test19 Evaluation of test results 21 10 Test repo
21、rt21 Annex A (informative) Information on test levels for the ring wave .30 Bibliography31 Figure 1 Waveform of the ring wave (open circuit voltage and short circuit current) .9 Figure 2 Example of schematic circuit of the test generator for ring wave 11 reference plane.15 reference plane.15 Figure
22、5 AC/DC power supply port, single phase, line-to-line test 22 Figure 6 AC/DC power supply port, single phase, line-to-ground test .22 line L3 to line L1 coupling .23 line L3 to ground coupling.24 Annex ZA (normative) Normative references to international publications with their corresponding Europea
23、n publications.32Figure 9 Example of test setup for unshielded unsymmetrical interconnection lines Figure 10 Example of test setup for unshielded unsymmetrical interconnection lines Figure 11 Example of test setup for unshielded unsymmetrical interconnection lines Figure 12 Example of test setup for
24、 unshielded symmetrical interconnection lines Figure 13 Test of a system with communication ports with fast operating signals 4 EN 61000-4-12:2006line-to-line and line-to-ground coupling via capacitors.25 line-to-line and line-to-ground coupling via arrestors.26 line-to-line and line-to-ground coupl
25、ing via a clamping circuit27 (communication lines) lines-to-ground coupling via arrestors .28 (generator output earthed) 29 Table 1 Test levels for ring wave .10 INTRODUCTION IEC 61000 is published in separate parts according to the following structure: Part 1: General General considerations (introd
26、uction, fundamental principles) Definitions, terminology Part 2: Environment Description of the environment Classification of the environment Compatibility levels Part 3: Limits Emission limits Immunity limits (in so far as they do not fall under the responsibility of the product committees) Part 4:
27、 Testing and measurement techniques Measurement techniques Testing techniques Part 5: Installation and mitigation guidelines Installation guidelines Mitigation methods and devices Part 6: Generic standards Part 9: Miscellaneous Each part is further subdivided into several parts, published either as
28、international standards or as technical specifications or technical reports, some of which have already been published as sections. Others will be published with the part number followed by a dash and a second number identifying the subdivision (example: 61000-6-1). This part is an International Sta
29、ndard which gives immunity requirements and test procedures related to ring waves. 5 EN 61000-4-12:2006ELECTROMAGNETIC COMPATIBILITY (EMC) Part 4-12: Testing and measurement techniques Ring wave immunity test 1 Scope and object This part of IEC 61000 relates to the immunity requirements and test met
30、hods for electrical and electronic equipment, under operational conditions, to non-repetitive damped oscillatory transients (ring waves) occurring in low-voltage power, control and signal lines supplied by public and non-public networks. The object of this basic standard is to establish the immunity
31、 requirements and a common reference for evaluating in a laboratory the performance of electrical and electronic equipment intended for residential, commercial and industrial applications, as well as of equipment intended for power stations and substations, as applicable. NOTE As described in IEC Gu
32、ide 107, this is a basic EMC publication for use by product committees of the IEC. As also stated in Guide 107, the IEC product committees are responsible for determining whether this immunity test standard should be applied or not, and if applied, they are responsible for determining the appropriat
33、e test levels and performance criteria. TC 77 and its sub-committees are prepared to co-operate with product committees in the evaluation of the value of particular immunity tests for their products. The purpose of this standard is to define: test voltage and current waveforms; ranges of test levels
34、; test equipment; test set-up; test procedure. 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 the referenced document (including any
35、amendments) applies. IEC 60050(161): International Electrotechnical Vocabulary (IEV) Chapter 161: Electro-magnetic compatibility 3 Terms and definitions For the purpose of this document, the following terms and definitions, together with those in IEC 60050-161 apply. NOTE Several of the most relevan
36、t terms and definitions from IEC 60050-161 are presented among the definitions below. 3.1 burst sequence of a limited number of distinct pulses or an oscillation of limited duration IEV 161-02-07 6 EN 61000-4-12:20063.2 calibration set of operations which establishes, by reference to standards, the
37、relationship which exists under specified conditions, between an indication and a result of a measurement NOTE 1 This term is based on the “uncertainty“ approach. NOTE 2 The relationship between the indications and the results of measurement can be expressed, in principle, by a calibration diagram.
38、IEV 311-01-09 3.3 coupling interaction between circuits, transferring energy from one circuit to another 3.4 coupling network electrical circuit for the purpose of transferring energy from one circuit to another 3.5 decoupling network electrical circuit for the purpose of preventing test voltages ap
39、plied to the EUT (equipment under test) from affecting other devices, equipment, or systems which are not under test 3.6 immunity (to a disturbance) the ability of a device, equipment, or system to perform without degradation in the presence of an electromagnetic disturbance IEV 161-01-20 3.7 port p
40、articular interface of the EUT with the external electromagnetic environment 3.8 rise time the interval of time between the instants at which the instantaneous value of a pulse first reaches 10 % value and then the 90 % value IEV 161-02-05, modified 3.9 transient (adjective and noun) pertaining to o
41、r designating a phenomenon or a quantity which varies between two consecutive steady states during a time interval short compared with the time-scale of interest IEV 161-02-01 3.10 verification set of operations which is used to check the test equipment system (e.g. the test generator and the interc
42、onnecting cables) and to demonstrate that the test system is functioning within the specifications given in Clause 6 NOTE 1 The methods used for verification may be different from those used for calibration. NOTE 2 The procedure of 6.1.2 and 6.2.2 is meant as a guide to insure the correct operation
43、of the test generator and other items making up the test set-up, so that the intended waveform is delivered to the EUT. NOTE 3 For the purpose of this basic EMC standard this definition is different from the definition given in IEV 311-01-13. 7 EN 61000-4-12:20064 General 4.1 Description of the phen
44、omenon The ring wave (described in Figure 1) is a typical oscillatory transient, induced in low-voltage cables due to the switching of electrical networks and reactive loads, faults and insulation breakdown of power supply circuits or lightning. It is, in fact, the most diffused phenomenon occurring
45、 in power supply (HV, MV, LV) networks,as well as in control and signal lines. The ring wave is representative of a wide range of electromagnetic environments of residential, as well as industrial installations. It is suitable for checking the immunity of equipment in respect of the above-mentioned
46、phenomena, which give rise to pulses characterized by sharp front-waves that, in the absence of filtering actions, are in the order of 10 ns to a fraction of s. The duration of these pulses may range from 10 s to 100 s. The rise time and duration of the parameters are subject to modification, depend
47、ing on the propagation media and path. The propagation of the wave in the lines (power and signal) is always subject to reflections, due to the mismatching impedance (the lines are terminated on their own loads or connected to protection devices, input line filters, etc.). These reflections produce
48、oscillations, whose frequency is related to the propagation speed. The presence of parasitic parameters (stray capacitance of components like motors, transformer windings, etc.) are other conditioning factors. The rise time is reduced to slowing down due to the low-pass characteristic of the line in
49、volved in the propagation. This modification is more relevant for the fast rise times (in the order of 10 ns), and less relevant for values in the range of a fraction of s. The resultant phenomenon at the equipment ports is an oscillatory transient, or ring wave. This ring wave with a defined 0,5 s rise time and 100 kHz oscillation frequency has been determined to be typical and is widely used by some industries for testing products. Another cause of the
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