1、BSI British Standards WB9423_BSI_StandardColCov_noK_AW:BSI FRONT COVERS 5/9/08 12:55 Page 1 BRITISH STANDARD BS EN 61000-4-14:1999 Electromagnetic compatibility (EMC) Part 4-14: Testing and measurement techniques Voltage fluctuation immunity testforequipmentwith inputcurrentnotexceeding16A perphase
2、ICS 33.100.20 +A2:2009 +A2:2009National foreword This British Standard is the UK implementation of EN 61000-4-14:1999+A2:2009. It is identical to IEC 61000-4-14:1999, incorporating amendments 1:2001 and 2:2009. It supersedes BS EN 61000-4-14:1999 which will be withdrawn on 1 July 2012. The start and
3、 finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to IEC text carry the number of the IEC amendment. For example, text altered by IEC amendment 1 is indicated by !“. The UK participation in its preparation was entrusted by Technical Committe
4、e GEL/210, EMC-Policy committee, to subcommittee GEL/210/12, EMC basic, generic and low frequency phenomena standardization. A list of organizations represented on this subcommittee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions
5、 of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. BS EN 61000-4-14:1999+A2:2009 This British Standard, having been prepared under the direction of the Electrotechnical Sector Committee, was published u
6、nder the authority of the Standards Committee and comes into effect on 15 June 1999 BSI 2010 Amendments/corrigenda issued since publication Amd. No. Date Comments 15272 26 July 2004 Implementation of IEC amendment 1:2001 with CENELEC endorsement A1:2004 31 January 2010 Implementation of IEC amendmen
7、t 2:2009 with CENELEC endorsement A2:2009 ISBN 978 0 580 61440 8EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 61000-4-14:1999+A2 ICS 33.100.20 English version Electromagnetic compatibility (EMC) Part 4-14: Testing and measurement techniques Voltage fluctuation immunity test for equipment with
8、 input current notexceeding 16 A per phase (IEC 61000-4-14:1999) Compatibilit lectromagntique (CEM) Partie 4-14: Techniques dessai et de mesure Essai dimmunit aux fluctuations de tension (CEI 61000-4-14:1999) Elektromagnetische Vertrglichkeit (EMV) Teil 4-14: Prf- und Meverfahren Prfung der Strfesti
9、gkeit gegen Spannungsschwankungen (IEC 61000-4-14:1999) This European Standard was approved by CENELEC on 1999-04-01. CENELEC members are bound to comply with the CEN/CENELEC InternalRegulations which stipulate the conditions for giving this European Standard the status of a national standard withou
10、t 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, German). A version in any other language
11、 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, Cyprus, Czech Republic, Denmark, Estonia, Fi
12、nland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisa
13、tion Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1999 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61000-4-14:1999 E BSI 2010 2 Foreword The text of d
14、ocument 77A/263/FDIS, future edition 1 of IEC 61000-4-14, prepared by SC 77A, Low-frequency phenomena, of IEC TC 77, Electromagnetic compatibility, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61000-4-14 on 1999-04-01. The following dates were fixed: Annexes desig
15、nated “normative” are part of the body of the standard. Annexes designated “informative” are given for information only. In this standard, Annex ZA is normative and Annexes A and B are informative. Annex ZA has been added by CENELEC. Endorsement notice The text of the International Standard IEC 6100
16、0-4-14:1999 was approved by CENELEC as a European Standard without any modification. In the official version, Bibliography, following notes have to be added for the standards indicated: Foreword to amendment A1 The text of amendment 1:2001 to the International Standard IEC 61000-4-14:1999, prepared
17、by SC 77B, High frequency phenomena, of IEC TC 77, Electromagnetic compatibility, was submitted to the Unique Acceptance Procedure and was approved by CENELEC as amendment A1 to EN 61000-4-14:1999 on 2004-05-01. The following dates were fixed: Endorsement notice The text of the amendment A1:2001 to
18、the International Standard IEC 61000-4-14:1999 was approved by CENELEC as an amendment to the European Standard without any modification. latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement dop) 2000-10-01 latest date
19、 by which national standards conflicting with the EN have to be withdrawn (dow)2002-04-01 IEC 61000-2-2 NOTE: Harmonized as ENV 61000-2-2:1993 (modified). IEC 61000-4-1 NOTE: Harmonized as ENV 61000-4-1:1994 (not modified). IEC 61000-4-11 NOTE: Harmonized as ENV 61000-4-11:1994 (not modified). lates
20、t date by which the amendment has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2005-05-01 latest date by which the national standards conflicting with the amendment have to be withdrawn (dow) 2007-05-01 Foreword to amendment A2 The text
21、 of document 77A/669/CDV, future amendment 2 to IEC 61000-4-14:1999, prepared by SC 77A, Low frequency phenomena, of IEC TC 77, Electromagnetic compatibility, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as amendment A2 to EN 61000-4-14:1999 on 2009-07-01. The following
22、 dates were fixed: latest date by which the amendment has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2010-04-01 latest date by which the national standards conflicting with the amendment have to be withdrawn (dow) 2012-07-01 _ Endorse
23、ment notice The text of amendment 2:2009 to the International Standard IEC 61000-4-14:1999 was approved by CENELEC as an amendment to the European Standard without any modification. _ BS EN 61000-4-14:1999+A2:2009 EN 61000-4-14:1999+A2:2009 CONTENTS OFWERODR 5 INTRODUCTION 4 1 Scope 5 2 Normative re
24、ferences . 5 3 General. 6 3.1 Effects of voltage fluctuations 6 3.2 Sources . 6 4 Definitions. 6 5 Test levels 7 6 Test equipment . 8 6.1 Test generator . 8 6.2 Characteristics and performance of the test generator 8 6.3 Verification of the test generator 8 7 Test set-up . 8 8 Test procedure 9 8.1 C
25、limatic conditions . 9 8.2 Execution of the test 9 9 Evaluation of test results .10 10 Test report 10 Annex A (informative) Electromagnetic environment classes .16 Bibliography 17 Figure 1a Test diagram.11 Figure 1b Example of a voltage step for t fand t requal to 0,25 periods 12 Figure 1c Example o
26、f a voltage fluctuation for t fand t requal to five periods (a period is 1/f n ) 12 Figure 1 Example of test sequences of voltage fluctuations.13 Figure 2 Example of successive applications of voltage fluctuations 14 Figure 3 Schematic (single-phase) of test instrumentation for voltage fluctuations,
27、 with power amplifier.14 Table 1 Test levels . 7 Table 2 Characteristics of the test generator . 8 BSI20 10 3 BS EN 61000-4-14:1999+A2:2009 Figure 1d Example of acomplete votage fluctuation . 13 EN 61000-4-14:1999+A2:2009INTRODUCTION IEC 61000 is published in separate parts according to the followin
28、g 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 (insofar as these limits do not
29、 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 methods and devices Part 6: Generic standards Part 9: Miscellaneous Each pa
30、rt is further subdivided into several parts, published either as International Standards, or as 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-
31、1). BSI20 10 4 BS EN 61000-4-14:1999+A2:2009 EN 61000-4-14:1999+A2:2009ELECTROMAGNETIC COMPATIBILITY (EMC) Part 4-14: Testing and measurement techniques Voltage fluctuation immunity test for equipment with 1 Scope This part of IEC 61000 is a basic electromagnetic compatibility (EMC) publication. It
32、considers immunity tests for electrical and/or electronic equipment in their electromagnetic environment. Only conducted phenomena are considered, including immunity tests for equipment connected to public and industrial power supply networks. This part aims to establish a reference for evaluating t
33、he immunity of electric and electronic equipment when subjected to positive and negative low amplitude voltage fluctuations. The voltage fluctuations considered by this standard do not include flicker, which is a physiological phenomenon due to lighting luminance fluctuations. This standard applies
34、to electrical and/or electronic equipment that have a rated input current up to 16 A per phase. It does not apply to electrical and/or electronic equipment connected to d.c. or a.c. 400 Hz distribution networks. Tests concerning these networks will be covered by other IEC standards. The immunity tes
35、t levels required for a specific electromagnetic environment, together with the performance criteria, are indicated in the product, product family or generic standards as applicable. However, most product groups do not have a history of being susceptible to voltage fluctuations. Consequently, testin
36、g for these phenomena is often not required. 2 Normative references IEC 60050(161) , International Electrotechnical Vocabulary (IEV) Chapter 161: Electro- magnetic compatibility IEC 60068-1 , Environmental testing Part 1: General and guidance IEC 61000-2-4 , Electromagnetic compatibility (EMC) Part
37、2: Environment Section 4: Compatibility levels in industrial plants for low-frequency conducted disturbances BSI20 10 5 input current not exceeding 16 A per phase # $ The following referenced documents are indispensable for the application of this document. For dated references, only the edition cit
38、ed applies. For undated references, the latest edition of the referenced document (including any amendments) applies. # $ # $ # $ BS EN 61000-4-14:1999+A2:2009 EN 61000-4-14:1999+A2:20093 General 3.1 Effects of voltage fluctuations Electrical and electronic equipment may be affected by voltage fluct
39、uations. Examples of these effects include the following: degradation of performances in equipment using storage devices (e.g. capacitors); loss of function in control systems; instability of internal voltages and currents in equipment; increased ripple. 3.2 Sources There is a significant number of
40、domestic appliances in the low-voltage network. However, fluctuations caused by these appliances are not generally significant. Fluctuations are mainly produced by a) continuously but randomly varying large loads such as: 1) resistance welding machines; 2) rolling mills; 3) large motors with varying
41、 loads; 4) arc furnaces; 5) arc welding plant; b) single on/off switching of loads (e.g. motors); c) step voltage changes (due to tap voltage regulators of transformers). These industrially produced fluctuations can affect a large number of consumers. Such equipment operates continuously or infreque
42、ntly. The public supply network impedance has wide variations, consequently the transmission of the disturbances will be different for different networks. 4 Definitions For the purpose of this part of IEC 61000, the following definitions and terms apply. They are applicable only to the field of volt
43、age fluctuations; not all of them are included in IEC 60050(161). 4.1 immunity ability of a device, equipment or system to perform without degradation of performance in the presence of an electromagnetic disturbance IEV 161-01-20 4.2 voltage fluctuations series of voltage changes or a cyclic variati
44、on of the voltage envelope IEV 161-08-05 BSI20 10 6 BS EN 61000-4-14:1999+A2:2009 EN 61000-4-14:1999+A2:20095 Test levels This test may apply to all equipment intended for connection to public networks, industrial networks and electricity plants that are likely to be sensitive to this type of distur
45、bance. It can be assumed that step voltage changes are the most disturbing type of voltage fluctuations. The equipment under test (EUT) is initially operated using a steady supply voltage and is then subjected to repetitive step voltage changes according to figure 1a. The initial voltage is set to U
46、 n , U n 10 % U n , U n+ 10 % U n NOTE U nis the nominal voltage. The magnitude of the voltage steps is chosen as follows: Class 1: no test required. Class 2: U = 8 % U nfor equipment intended for connection to public networks or other lightly disturbed networks. This test level is specified for cla
47、ss 2. Class 3: U = 12 % U nfor equipment connected to heavily disturbed networks (i.e. industrial networks). This test level is specified for class 3. Classes 1, 2 and 3 are defined in annex A. Table 1 gives the test levels for the different initial voltages: U n , U n 10 % U n , U n+ 10 % U n Table
48、 1 Test levels Class U n U n 10 % U n U n+ 10 % U n 1 No test required 2 U = 8 % U n U = +8 % U n U = 8 % U n 3 U = 12 % U n U = +12 % U n U = 12 % U n x x x x NOTE The levels for class “x“ are open. BSI20 10 7 # $ The repetition period T and the duration t of the voltage fluctuations are specified
49、as T = 5 s and t = 2 s (see Figure 1d). The changes from the initial voltage to the test voltage, or from the test voltage back to the initial voltage are achieved through five successive voltage steps in five consecutive cycles of the mains supply, see Figure 1d. Each voltage step is of U/5 and occurs over /2 radians of the period of the nominal frequency, f n , (
