1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Direct acting indicating analogue electrical measuring instruments and their accessoriesPart 6: Special requirements for ohmmeters (impedance meters) and conductance meters (IEC 60051-6:2017)BS EN IEC 60051-6:2018EUROPE
2、AN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IEC 60051-6 March 2018 ICS 17.220.20 Supersedes EN 60051-6:1989 English Version Direct acting indicating analogue electrical measuring instruments and their accessories - Part 6: Special requirements for ohmmeters (impedance meters) and conductance mete
3、rs (IEC 60051-6:2017) Appareils mesureurs lectriques indicateurs analogiques action directe et leurs accessoires - Partie 6: Exigences particulires pour les ohmmtres (les impdancemtres) et les conductancemtres (IEC 60051-6:2017) Direkt wirkende anzeigende elektrische Megerte und ihr Zubehr - Megerte
4、 mit Skalenanzeige - Teil 6: Spezielle Anforderungen fr Widerstands- (Scheinwiderstands-) und Leitfhigkeits-Megerte (IEC 60051-6:2017) This European Standard was approved by CENELEC on 2018-01-19. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the condi
5、tions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard ex
6、ists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the na
7、tional electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, P
8、ortugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Rue de la S
9、cience 23, B-1040 Brussels 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN IEC 60051-6:2018 E National forewordThis British Standard is the UK implementation of EN IEC 600516:2018. It is identical to IEC 600516:2017. It superse
10、des BS 896:1990, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee PEL/85, Measuring equipment for electrical and electromagnetic quantities.A list of organizations represented on this committee can be obtained on request to its secretary.This publicatio
11、n does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 93062 1ICS 17.220.20Compliance with a British Standard cannot confer immunity from
12、 legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN IEC 60051-6:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IEC 60
13、051-6 March 2018 ICS 17.220.20 Supersedes EN 60051-6:1989 English Version Direct acting indicating analogue electrical measuring instruments and their accessories - Part 6: Special requirements for ohmmeters (impedance meters) and conductance meters (IEC 60051-6:2017) Appareils mesureurs lectriques
14、indicateurs analogiques action directe et leurs accessoires - Partie 6: Exigences particulires pour les ohmmtres (les impdancemtres) et les conductancemtres (IEC 60051-6:2017) Direkt wirkende anzeigende elektrische Megerte und ihr Zubehr - Megerte mit Skalenanzeige - Teil 6: Spezielle Anforderungen
15、fr Widerstands- (Scheinwiderstands-) und Leitfhigkeits-Megerte (IEC 60051-6:2017) This European Standard was approved by CENELEC on 2018-01-19. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of
16、 a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official versions (English, French, Ger
17、man). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgiu
18、m, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain,
19、Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CENELEC All rights of
20、 exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN IEC 60051-6:2018 E BS EN IEC 60051-6:2018EN IEC 60051-6:2018 (E) 2 European foreword The text of document 85/559/CDV, future edition 5 of IEC 60051-6, prepared by IEC/TC 85 “Measuring equipment for electri
21、cal and electromagnetic quantities“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 60051-6:2018. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorseme
22、nt (dop) 2018-10-19 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2021-01-19 This document supersedes EN 60051-6:1989. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC
23、shall not be held responsible for identifying any or all such patent rights. This document has been prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directives. For the relationship with EU Directi
24、ves see informative Annex ZZ, which is an integral part of this document. Endorsement notice The text of the International Standard IEC 60051-6:2017 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following note has to be added
25、for the standard indicated: IEC 60051-91NOTE Harmonized as EN 60051-92. 1To be published. Stage at the time of publication: IEC CDV 60051-9:2018. 2To be published. Stage at the time of publication: prEN 60051-9:2018. BS EN IEC 60051-6:2018EN IEC 60051-6:2018 (E) 3 Annex ZA (normative) Normative refe
26、rences to international publications with their corresponding European publications The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated referen
27、ces, the latest edition of the referenced document (including any amendments) applies. NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. NOTE 2 Up-to-date information on the latest versions of the European Standards l
28、isted in this annex is available here: www.cenelec.eu. Publication Year Title EN/HD Year IEC 60051-1 2016 Direct acting indicating analogue electrical measuring instruments and their accessories Part1: Definitions and general requirements common to all parts EN 60051-1 2017 BS EN IEC 60051-6:2018 2
29、IEC 60051-6:2017 IEC 2017 CONTENTS FOREWORD . 4 INTRODUCTION . 6 1 Scope 7 2 Normative references 7 3 Terms and definitions 7 4 Description, classification and compliance . 7 4.1 Description . 7 4.1.1 Description according to methods of operation or nature . 7 4.1.2 Description according to environm
30、ental conditions . 7 4.1.3 Description according to mechanical conditions . 8 4.1.4 Description according to degrees of protection 8 4.1.5 Description according to methods of measurement 8 4.1.6 Description according to linearity of scale 8 4.2 Classification 8 4.3 Compliance with the requirements o
31、f this standard . 8 5 Requirements 8 5.1 Reference conditions 8 5.2 Limits of intrinsic uncertainty, fiducial value 8 5.2.1 Limits of intrinsic uncertainty . 8 5.2.2 Correspondence between intrinsic uncertainty and accuracy class 8 5.2.3 Fiducial value 8 5.3 Nominal range of use and variations . 9 5
32、.3.1 Nominal range of use . 9 5.3.2 Limits of variations. 9 5.3.3 Conditions for the determination of variations 9 5.4 Operating uncertainty, overall system uncertainty and variations 9 5.5 Electrical requirements . 9 5.5.1 Electrical safety requirements 9 5.5.2 Self-heating . 9 5.5.3 Permissible ov
33、erloads 9 5.5.4 Limiting range of temperature 10 5.5.5 Deviation from zero . 10 5.5.6 Electromagnetic compatibility (EMC) . 10 5.6 Constructional requirements . 10 5.6.1 General constructional requirements . 10 5.6.2 Damping 10 5.6.3 Sealing to prevent access 10 5.6.4 Scales . 10 5.6.5 Stopper 10 5.
34、6.6 Preferred values 10 5.6.7 Adjusters, mechanical and/or electrical 11 5.6.8 Effects of vibration and shock 11 5.6.9 Degrees of protection provided by enclosure . 11 5.6.10 Terminals 11 6 Information, markings and symbols 11 6.1 Information . 11 BS EN IEC 60051-6:2018IEC 60051-6:2017 IEC 2017 3 6.
35、2 Markings, symbols and their locations . 11 6.3 Markings relating to the reference values and nominal ranges of use of influence quantities . 11 6.4 The symbols for marking instruments and accessories 11 6.5 Markings and symbols for terminals 11 6.5.1 Requirements for markings 11 6.5.2 Earthing (gr
36、ounding) terminals . 11 6.5.3 Measuring circuit terminals 11 6.5.4 Special markings for terminals . 12 6.6 Instructions for use . 12 7 Package 12 8 Test rules 12 Annex A (normative) Nonconformity classification of tests . 13 Bibliography 14 Table A.1 Nonconformity classification of tests 13 BS EN IE
37、C 60051-6:2018 4 IEC 60051-6:2017 IEC 2017 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ DIRECT ACTING INDICATING ANALOGUE ELECTRICAL MEASURING INSTRUMENTS AND THEIR ACCESSORIES Part 6: Special requirements for ohmmeters (impedance meters) and conductance meters FOREWORD 1) The International Electrote
38、chnical 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 questions concerning standardization in the electrical and electronic fields. To t
39、his 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 Publication(s)”). Their preparation is entrusted to technical committees; any IEC Nationa
40、l 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. IEC collaborates closely with the International Organization for Standardization (ISO)
41、 in accordance with conditions determined by agreement between the two organizations. 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 fro
42、m all interested IEC National Committees. 3) IEC Publications have the form of recommendations 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 he
43、ld responsible for the way in which they are used or for any misinterpretation by 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 d
44、ivergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to I
45、EC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual
46、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 for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this I
47、EC 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 publication. 9) Attention is drawn to the possibility that some of the elements of this I
48、EC 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 60051-6 has been prepared by IEC technical committee 85: Measuring equipment for electrical and electromagnetic quantities. This fifth editi
49、on cancels and replaces the fourth edition published in 1984. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) updating of content in line with new editions of IEC 60051-1 and IEC 60051-9; b) addition of Annex A to specify the nonconformity classification of test items. BS EN IEC 60051-6:2018IEC 60051-6:2017 IEC 2017 5 The text of this International Standard is based on the following
