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1 INTERNATIONAL STANDARD IEC Edition Edition 1:1997 consolidated with amendment 1:2003 BASIC EMC PUBLICATION Electromagnetic compatibility (EMC) Part 4: Testing and measurement techniques This English-language version is derived from the original bilingual publication by leaving out all French-language pages. Missing page numbers correspond to the Frenchlanguage pages. Reference number IEC :1997+A1:2003(E)
2 INTERNATIONAL STANDARD IEC Edition Edition 1:1997 consolidated with amendment 1:2003 BASIC EMC PUBLICATION Electromagnetic compatibility (EMC) Part 4: Testing and measurement techniques IEC 2003 Copyright - all rights reserved No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland Telephone: Telefax: Web: Commission Electrotechnique Internationale International Electrotechnical Commission Международная Электротехническая Комиссия PRICE CODE For price, see current catalogue CE
3 IEC:1997+A1: CONTENTS FOREWORD... 5 INTRODUCTION Scope and object Normative references Description of the instrument General Block 1 Input voltage adaptor and calibration checking circuit Block 2 Square law demodulator Blocks 3 and 4 Weighting filters, squaring and smoothing Block 5 On-line statistical analysis Outputs Specification Analogue response Input transformer Voltage adaptor Internal generator for calibration checking Squaring demodulator Weighting filters Overall response from input to output of block Range selector Squaring multiplier and sliding mean filter General statistical analysis procedure Temperature and humidity operating range of the instrument Performance testing Type test and calibration specifications General Insulation and electromagnetic compatibility tests (provisional) Climatic tests...31 Annex A (normative) Techniques to improve accuracy of flicker evaluation...41 Annex B (informative) Meaning of V/V and number of voltage changes...45 Bibliography...47 Figure 1 Functional diagram of IEC flickermeter...37 Figure 2 Basic illustration of the time-at-level method...39 Figure B.1 Rectangular voltage change V/V = 40 %, 8,8 Hz, 17,6 changes/second...45 Table 1 Normalized flickermeter response for sinusoidal voltage fluctuations (input relative voltage fluctuation V/V for one unit of perceptibility at output 5)...17 Table 2 Normalized flickermeter response for rectangular voltage fluctuations (input relative voltage fluctuation V/V for one unit of perceptibility at output 5)...19 Table 3 Ranges of rated input voltage...19 Table 4 Relationship between the range selector values and sensation levels...25 Table 5 Test specification for flickermeter classifier...27 Table 6 Insulation tests for input and power supply connection...33 Table 7 Immunity assessment tests to electromagnetic interference...33 Table 8 Indicative values for the parameters of lamps...23
4 IEC:1997+A1: INTERNATIONAL ELECTROTECHNICAL COMMISSION ELECTROMAGNETIC COMPATIBILITY (EMC) Part 4: Testing and measurement techniques FOREWORD 1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of the 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, the IEC publishes International Standards. Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. The IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of the 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 National Committees. 3) The documents produced have the form of recommendations for international use and are published in the form of standards, technical specifications, technical reports or guides and they are accepted by the National Committees in that sense. 4) In order to promote international unification, IEC National Committees undertake to apply IEC International Standards transparently to the maximum extent possible in their national and regional standards. Any divergence between the IEC Standard and the corresponding national or regional standard shall be clearly indicated in the latter. 5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with one of its standards. 6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC has been prepared by subcommittee 77A: Lowfrequency phenomena, of IEC technical committee 77: Electromagnetic compatibility. It forms section 15 of part 4 of the IEC series. It has the status of a basic EMC publication in accordance with IEC guide 107. This consolidated version of IEC consists of the first edition (1997) [documents 77A/180/FDIS and 77A/190/RVD and its amendment 1 (2003) [documents 77A/389/FDIS and 77A/399/RVD. The technical content is therefore identical to the base edition and its amendment and has been prepared for user convenience. It bears the edition number 1.1. A vertical line in the margin shows where the base publication has been modified by amendment 1. Annex A forms an integral part of this standard. Annex B is for information only. The committee has decided that the contents of the base publication and its amendment will remain unchanged until At this date, the publication will be reconfirmed; withdrawn; replaced by a revised edition, or amended.
5 IEC:1997+A1: INTRODUCTION IEC is a part of the IEC series, according to the following structure: Part 1: Part 2: Part 3: Part 4: Part 5: Part 6: Part 9: General General consideration (introduction, fundamental principles) Definitions, terminology Environment Description of the environment Classification of the environment Compatibility levels Limits Emission limits Immunity limits (in so far as they do not fall under the responsibility of the product committees) Testing and measurement techniques Measurement techniques Testing techniques Installation and mitigation guidelines Installation guidelines Mitigation methods and devices Generic standards Miscellaneous Each part is further subdivided into sections which are to be published either as International Standards or as technical reports. These sections of IEC will be published in chronological order and numbered accordingly.
6 IEC:1997+A1: ELECTROMAGNETIC COMPATIBILITY (EMC) Part 4: Testing and measurement techniques 1 Scope and object This section of IEC gives a functional and design specification for flicker measuring apparatus intended to indicate the correct flicker perception level for all practical voltage fluctuation waveforms. Information is presented to enable such an instrument to be constructed. A method is given for the evaluation of flicker severity on the basis of the output of flickermeters complying with this standard. This section is based partly on work by the Disturbances Working Group of the International Union for Electroheat (UIE), partly on work of the IEEE, and partly on work within IEC itself. The flickermeter specifications in this section relate only to measurements of 230 V, 50 Hz inputs and 120 V, 60 Hz inputs; specifications for other voltages and other frequencies are under consideration. The object of this section is to provide basic information for the design and the instrumentation of an analogue or digital flicker measuring apparatus. It does not give tolerance limit values of flicker severity. 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 :1990, Environmental testing Part 2: Tests Tests A: Cold IEC :1974, Environmental testing Part 2: Tests Tests B: Dry heat IEC :1969, Environmental testing Part 2: Tests Test Ca: Damp heat, steady state IEC :1984, Environmental testing Part 2: Tests Test N: Change of temperature IEC :1995, Electromagnetic compatibility (EMC) Part 4: Testing and measurement techniques Section 2: Electrostatic discharge immunity test IEC :1995, Electromagnetic compatibility (EMC) Part 4: Testing and measurement techniques Section 3: Radiated, radio-frequency, electromagnetic field immunity test IEC :1995, Electromagnetic compatibility (EMC) Part 4: Testing and measurement techniques Section 4: Electrical fast transient/burst immunity test
7 IEC:1997+A1: IEC :1995, Electromagnetic compatibility (EMC) Part 4: Testing and measurement techniques Section 5: Surge immunity test IEC :1996, Electromagnetic compatibility (EMC) Part 4: Testing and measurement techniques Section 6: Immunity to conducted disturbances induced by radio-frequency fields IEC :1993, Electromagnetic compatibility (EMC) Part 4: Testing and measurement techniques Section 8: Power frequency magnetic field immunity test IEC :1993, Electromagnetic compatibility (EMC) Part 4: Testing and measurement techniques Section 9: Pulse magnetic field immunity test IEC :1994, Electromagnetic compatibility (EMC) Part 4: Testing and measurement techniques Section 11: Voltage dips, short interruptions and voltage variations immunity tests IEC :1995, Electromagnetic compatibility (EMC) Part 4: Testing and measurement techniques Section 12: Oscillatory waves immunity test IEC :1990, Safety requirements for electrical equipment for measurement, control, and laboratory use Part 1: General requirements IEC :1997, Electrical equipment for measurement, control and laboratory use Electromagnetic compatibility (EMC) requirements Part 1: General requirements IEC , Electrical equipment for measurement, control and laboratory use Electromagnetic compatibility (EMC) requirements Part 10: Particular requirements for equipment used in industrial locations * * To be published.