SANS 61000-3-3-2009 Electromagnetic compatibility (EMC) Part 3-3 Limits - Limitation of voltage changes voltage fluctuations and flicker in public low-voltage supply systems for eqnd.pdf

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1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA

2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any

3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-22325-0 SANS 61000-3-3:2009Edition 2IEC 61000-3-3:2008Edition 2SOUTH AFRICAN NATIONAL STANDARD Electromagnetic compatibility (EMC) Part 3-

4、3: Limits Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems, for equipment with rated current 16 A per phase and not subject to conditional connection This national standard is the identical implementation of IEC 61000-3-3:2008 and is adopted with t

5、he permission of the International Electrotechnical Commission. Published by SABS Standards Division 1 Dr Lategan Road Groenkloof Private Bag X191 Pretoria 0001Tel: +27 12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS SANS 61000-3-3:2009 Edition 2 IEC 61000-3-3:2008 Edition 2 Table of changes Ch

6、ange No. Date Scope National foreword This South African standard was approved by National Committee SABS TC 73, Electromagnetic compatibility, in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in Febru

7、ary 2009. This SANS document supersedes SANS 61000-3-3:2006 (edition 1.2). IEC 61000-3-3Edition 2.0 2008-06INTERNATIONAL STANDARD NORME INTERNATIONALEElectromagnetic compatibility (EMC) Part 3-3: Limits Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply syst

8、ems, for equipment with rated current 16 A per phase and not subject to conditional connection Compatibilit lectromagntique (CEM) Partie 3-3: Limites Limitation des variations de tension, des fluctuations de tension et du papillotement dans les rseaux publics dalimentation basse tension, pour les ma

9、triels ayant un courant assign 16 A par phase et non soumis un raccordement conditionnel INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE TICS 33.100.10 PRICE CODECODE PRIXISBN 2-8318-9831-5SANS 61000-3-3:2009This s tandard may only be used and printed by approved

10、 subscription and freemailing clients of the SABS . 2 61000-3-3 IEC:2008 CONTENTS FOREWORD.3 INTRODUCTION.5 1 Scope.6 2 Normative references .6 3 Definitions 7 4 Assessment of voltage changes, voltage fluctuations and flicker 8 4.1 Assessment of a relative voltage change, “d“ 8 4.2 Assessment of the

11、 short-term flicker value, Pst9 4.2.1 Flickermeter 9 4.2.2 Simulation method.9 4.2.3 Analytical method 9 4.2.4 Use of Pst = 1 curve.10 4.3 Assessment of long-term flicker value, Plt.10 5 Limits .10 6 Test conditions .11 6.1 General .11 6.2 Measurement accuracy .12 6.3 Test supply voltage .12 6.4 Ref

12、erence impedance12 6.5 Observation period 12 6.6 General test conditions13 Annex A (normative) Application of limits and type test conditions for specific equipment.18 Annex B (normative) Test conditions and procedures for measuring dmax voltage changes caused by manual switching .25 Figure 1 Refere

13、nce network for single-phase and three-phase supplies derived from a three-phase, four-wire supply.14 Figure 2 Histogram evaluation of U(t).15 Figure 3 Relative voltage change characteristic .15 Figure 4 Curve for Pst=1 for rectangular equidistant voltage changes 16 Figure 5 Shape factors F for doub

14、le-step and ramp-voltage characteristics16 Figure 6 Shape factors F for rectangular and triangular voltage characteristics17 Figure 7 Shape factor F for motor-start voltage characteristics having various front times.17 Table 1 Assessment method 9 Table A.1 Electrode parameters.23 Table A.2 Frequency

15、 factor R related to repetition rate “r“ .24 SANS 61000-3-3:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .61000-3-3 IEC:2008 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ELECTROMAGNETIC COMPATIBILITY (EMC) Part 3-3: Limits Limitation o

16、f voltage changes, voltage fluctuations and flicker in public low-voltage supply systems, for equipment with rated current 16 A per phase and not subject to conditional connection FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprisi

17、ng all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standard

18、s, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparat

19、ory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizati

20、ons. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of re

21、commendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by

22、 any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional

23、publication shall be clearly indicated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have the latest edition of this publicat

24、ion. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or

25、for costs (including legal 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

26、 application of this publication. 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 61000-3-3 has been prepared by

27、 subcommittee 77A: Low-frequency phenomena, of IEC technical committee 77: Electromagnetic compatibility. This second edition IEC 61000-3-3 cancels and replaces the first edition published in 1994, amendment 1 (2001) and amendment 2 (2005). This edition constitutes a revised edition. The document 77

28、A/644/FDIS, circulated to the National Committees as amendment 3, led to the publication of the new edition. SANS 61000-3-3:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS . 4 61000-3-3 IEC:2008 The text of this standard is based on the fi

29、rst edition, its amendment 1, amendment 2 and on the following documents: FDIS Report on voting 77A/644/FDIS 77A/650/RVDFull information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance

30、with the ISO/IEC Directives, Part 2. The committee has decided that the contents of this amendment and the base publication will remain unchanged until the maintenance result date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this dat

31、e, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. SANS 61000-3-3:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .61000-3-3 IEC:2008 5 INTRODUCTION IEC 61000 is published in separate parts accord

32、ing 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 Part 3: Limits Emission limits Immunity limits (in so far a

33、s they do not fall under the responsibility of product committees) Part 4: Testing and measurement techniques Measurement techniques Testing techniques Part 5: Installation and mitigation guidelines Installation guidelines Mitigation methods and devices Part 9: Miscellaneous Each part is further sub

34、divided into sections which are to be published either as International Standards or as Technical Reports. These standards and reports will be published in chronological order and numbered accordingly. This part is a Product Family Standard. The limits in this standard relate to the voltage changes

35、experienced by consumers connected at the interface between the public supply low-voltage network and the equipment users installation. Consequently, if the actual impedance of the supply at the supply terminals of equipment connected within the equipment users installation exceeds the test impedanc

36、e, it is possible that supply disturbance exceeding the limits may occur. SANS 61000-3-3:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .This page is intentionally left blankSANS 61000-3-3:2009This s tandard may only be used and printed b

37、y approved subscription and freemailing clients of the SABS . 6 61000-3-3 IEC:2008 ELECTROMAGNETIC COMPATIBILITY (EMC) Part 3-3: Limits Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems, for equipment with rated current 16 A per phase and not subjec

38、t to conditional connection 1 Scope This part of IEC 61000 is concerned with the limitation of voltage fluctuations and flicker impressed on the public low-voltage system. It specifies limits of voltage changes which may be produced by an equipment tested under specified conditions and gives guidanc

39、e on methods of assessment. This part of IEC 61000 is applicable to electrical and electronic equipment having an input current equal to or less than 16 A per phase, intended to be connected to public low-voltage distribution systems of between 220 V and 250 V line to neutral at 50 Hz, and not subje

40、ct to conditional connection. Equipment which does not comply with the limits of this part of IEC 61000 when tested with the reference impedance Zref of 6.4, and which therefore cannot be declared compliant with this part, may be retested or evaluated to show conformity with IEC 61000-3-11. Part 3-1

41、1 is applicable to equipment with rated input current 75 A per phase and subject to conditional connection. The tests according to this part are type tests. Particular test conditions are given in annex A and the test circuit is shown in Figure 1. NOTE The limits in this part of IEC 61000 are based

42、mainly on the subjective severity of flicker imposed on the light from 230 V/60 W coiled-coil filament lamps by fluctuations of the supply voltage. For systems with nominal voltage less than 220 V line to neutral and/or frequency of 60 Hz, the limits and reference circuit values are under considerat

43、ion. 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 amendments) applies. IEC 60050(161):1990,

44、International Electrotechnical Vocabulary (IEV) Chapter 161: Electromagnetic compatibility IEC/TR 60725, Consideration of reference impedances and public supply impedances for use in determining disturbance characteristics of electrical equipment having a rated current 75 A per phase IEC 60974-1, Ar

45、c welding equipment Part 1: Welding power sources IEC 61000-3-2:2005, Electromagnetic compatibility (EMC) Part 3-2: Limits Limits for harmonic current emissions (equipment input current 16 A per phase) SANS 61000-3-3:2009This s tandard may only be used and printed by approved subscription and freema

46、iling clients of the SABS .61000-3-3 IEC:2008 7 IEC 61000-3-11, Electromagnetic compatibility (EMC) Part 3-11: Limits Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems Equipment with rated current 75 A and subject to conditional connection IEC 61000

47、-4-15, Electromagnetic compatibility (EMC) Part 4: Testing and measurement techniques Section 15: Flickermeter Functional and design specifications 3 Definitions For the purpose of this part of IEC 61000-3, the following definitions apply. 3.1 r.m.s. voltage shape, U(t) the time function of r.m.s. v

48、oltage, evaluated as a single value for each successive half period between zero-crossings of the source voltage (see Figure 2) 3.2 voltage change characteristic, U(t) the time function of the r.m.s. voltage change evaluated as a single value for each successive half period between zero-crossings of

49、 the source voltage between time intervals in which the voltage is in a steady-state condition for at least 1 s (see Figure 2) NOTE Since this characteristic is only used for assessments using calculations, the voltage in the steady-state condition is assumed to be constant within the measurement accuracy (see 6.2). 3.3 maximum voltage change characteristic, Umaxthe difference between maximum and minimum r.m.s. values of a voltage change characteristic (see F