1、 IEC 61000-3-12 Edition 2.0 2011-05 INTERNATIONAL STANDARD NORME INTERNATIONALE Electromagnetic compatibility (EMC) Part 3-12: Limits Limits for harmonic currents produced by equipment connected to public low-voltage systems with input current 16 A and 75 A per phase Compatibilit lectromagntique (CE
2、M) Partie 3-12: Limites Limites pour les courants harmoniques produits par les appareils connects aux rseaux publics basse tension ayant un courant appel 16 A et 75 A par phase IEC 61000-3-12:2011 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2011 IEC, Geneva, Switzerland All rights reserved. Un
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17、ion 2.0 2011-05 INTERNATIONAL STANDARD NORME INTERNATIONALE Electromagnetic compatibility (EMC) Part 3-12: Limits Limits for harmonic currents produced by equipment connected to public low-voltage systems with input current 16 A and 75 A per phase Compatibilit lectromagntique (CEM) Partie 3-12: Limi
18、tes Limites pour les courants harmoniques produits par les appareils connects aux rseaux publics basse tension ayant un courant appel 16 A et 75 A par phase INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE U ICS 33.100.10 PRICE CODE CODE PRIX ISBN 978-2-88912-486-
19、2 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale 2 61000-3-12 IEC:2011 CONTENTS FOREWORD . 3 INTRODUCTION . 5 1 Scope . 6 2 Normative references 7 3 Terms and definitions . 7 4 Measurement conditions . 11 4.1 Determ
20、ination of the reference current . 11 4.2 Harmonic current measurement . 11 4.2.1 General . 11 4.2.2 Measurement procedure 11 4.2.3 Repeatability 11 4.2.4 Starting and stopping . 12 4.2.5 Application of limits 12 4.2.6 Test report . 12 4.2.7 Test observation period 12 4.3 Equipment consisting of sev
21、eral self-contained items . 12 5 Requirements and limits for equipment . 13 5.1 Control methods 13 5.2 Limits for emission . 13 6 Product documentation . 17 7 Test and simulation conditions 17 7.1 General . 17 7.2 Requirements for direct measurement . 17 7.3 Requirements for simulation 18 7.4 Genera
22、l conditions for test and simulation 19 Annex A (normative) Type test conditions . 21 Annex B (informative) Illustration of limits for harmonic currents . 23 Annex C (informative) Equipment not complying with the requirements and limits of this standard . 24 Bibliography 25 Figure 1 Definition of th
23、e 5 thharmonic current phase angle (I 5leads U p1 , 5 0) 10 Figure 2 Definition of the 5 thharmonic current phase angle (I 5lags U p1 , 5 0) 10 Figure 3 Flowchart of the application procedure 16 Figure B.1 Limits of the 5 thharmonic current as functions of R sce. 23 Table 1 Values of the observation
24、 period 12 Table 2 Current emission limits for equipment other than balanced three-phase equipment . 15 Table 3 Current emission limits for balanced three-phase equipment 15 Table 4 Current emission limits for balanced three-phase equipment under specified conditions (a, b, c) 15 Table 5 Current emi
25、ssion limits for balanced three-phase equipment under specified conditions (d, e, f) . 16 61000-3-12 IEC:2011 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ELECTROMAGNETIC COMPATIBILITY (EMC) Part 3-12: Limits Limits for harmonic currents produced by equipment connected to public low-voltage systems
26、 with input current 16 A and 75 A per phase FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all
27、 questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Public
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35、 fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publi
36、cation. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 61000-3-12 has been prepared by subcommittee 77A: Low fr
37、equency phenomena, of IEC technical committee 77: Electromagnetic compatibility. This second edition cancels and replaces the first edition published in 2004 and constitutes a technical revision. The significant technical changes with respect to the previous edition are listed below: the reference f
38、undamental current I 1is replaced by the reference current I reffor the calculation of emission limits; a new table of current emission limits (Table 5) is added; a new annex (Annex A) is added to define test conditions for some types of equipment; 4 61000-3-12 IEC:2011 former Annexes B (Approximate
39、 interpolation formulas) and D (Information on the PWHD factor) are deleted. The text of this standard is based on the following documents: FDIS Report on voting 77A/740/FDIS 77A/747/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated i
40、n the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts of the IEC 61000 series, published under the general title Electromagnetic compatibility (EMC), can be found on the IEC website. The committee has decided that the contents of
41、this publication will remain unchanged until the stability date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. 61000-3-12 IEC:2011 5
42、INTRODUCTION IEC 61000 is published in separate parts according to the following structure: Part 1: General General considerations (introduction, fundamental principles) Definitions, terminology Part 2: Environment Description of the environment Classification of the environment Compatibility levels
43、 Part 3: Limits Emission limits Immunity limits (in so far as they do not fall under the responsibility of the product committees) Part 4: Testing and measurement techniques Measurement techniques Testing techniques Part 5: Installation and mitigation guidelines Installation guidelines Mitigation me
44、thods and devices Part 6: Generic standards Part 9: Miscellaneous Each part is further subdivided into several parts, published either as International Standards or as technical specifications or technical reports, some of which have already been published as sections. Others will be published with
45、the part number followed by a dash and a second number identifying the subdivision (example: IEC 61000-6-1). This International Standard is a Product Family Standard. 6 61000-3-12 IEC:2011 ELECTROMAGNETIC COMPATIBILITY (EMC) Part 3-12: Limits Limits for harmonic currents produced by equipment connec
46、ted to public low-voltage systems with input current 16 A and 75 A per phase 1 Scope This part of IEC 61000 deals with the limitation of harmonic currents injected into the public supply system. The limits given in this International Standard are applicable to electrical and electronic equipment wit
47、h a rated input current exceeding 16 A and up to and including 75 A per phase, intended to be connected to public low-voltage a.c. distribution systems of the following types: nominal voltage up to 240 V, single-phase, two or three wires; nominal voltage up to 690 V, three-phase, three or four wires
48、; nominal frequency 50 Hz or 60 Hz. Other distribution systems are excluded. The limits given in this edition apply to equipment when connected to 230/400 V, 50 Hz systems. See also Clause 5. NOTE 1 The limits for the other systems will be added in a future edition of this standard. NOTE 2 Equipment
49、 with a rated input current exceeding 75 A per phase should be considered in the harmonic current requirements for installations. See IEC/TR 61000-3-6 and future IEC/TR 61000-3-14. This standard applies to equipment intended to be connected to low-voltage systems interfacing with the public supply at the low-voltage level. It does not apply to equipment intended to be connected
