1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Direct acting indicating analogue electrical measuring instruments and their accessoriesPart 8: Special requirements for accessories (IEC 60051-8:2017)BS EN IEC 60051-8:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE N
2、ORM EN IEC 60051-8 March 2018 ICS 17.220.20 Supersedes EN 60051-8:1989 English Version Direct acting indicating analogue electrical measuring instruments and their accessories - Part 8: Special requirements for accessories (IEC 60051-8:2017) Appareils mesureurs lectriques indicateurs analogiques act
3、ion directe et leurs accessoires - Partie 8: Exigences particulires pour les accessoires (IEC 60051-8:2017) Direkt wirkende anzeigende elektrische Megerte und ihr Zubehr - Megerte mit Skalenanzeige - Teil 8: Spezielle Anforderungen fr Zubehr (IEC 60051-8:2017) This European Standard was approved by
4、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 a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national sta
5、ndards 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, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own langu
6、age 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, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, Franc
7、e, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen
8、 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 exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN IEC 60051-8:2018 E Nationa
9、l forewordThis British Standard is the UK implementation of EN IEC 600518:2018. It is identical to IEC 600518:2017. It supersedes BS 898:1990, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee PEL/85, Measuring equipment for electrical and electromagneti
10、c quantities.A list of organizations represented on this committee can be obtained on request to its secretary.This publication 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
11、by BSI Standards Limited 2018ISBN 978 0 580 93064 5ICS 17.220.20Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2018.Amendments/corrigenda issued since
12、publicationDate Text affectedBRITISH STANDARDBS EN IEC 600518:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IEC 60051-8 March 2018 ICS 17.220.20 Supersedes EN 60051-8:1989 English Version Direct acting indicating analogue electrical measuring instruments and their accessories - Part 8: Sp
13、ecial requirements for accessories (IEC 60051-8:2017) Appareils mesureurs lectriques indicateurs analogiques action directe et leurs accessoires - Partie 8: Exigences particulires pour les accessoires (IEC 60051-8:2017) Direkt wirkende anzeigende elektrische Megerte und ihr Zubehr - Megerte mit Skal
14、enanzeige - Teil 8: Spezielle Anforderungen fr Zubehr (IEC 60051-8:2017) 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 a nation
15、al 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, German). A v
16、ersion 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, Belgium, Bulgar
17、ia, 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, Sweden, S
18、witzerland, 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 exploita
19、tion in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN IEC 60051-8:2018 E BS EN IEC 600518:2018EN IEC 60051-8:2018 (E) 2 European foreword The text of document 85/561/CDV, future edition 5 of IEC 60051-8, prepared by IEC/TC 85 “Measuring equipment for electrical and el
20、ectromagnetic quantities“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 60051-8:2018. 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 endorsement (dop) 2
21、018-10-19 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2021-01-19 This document supersedes EN 60051-8:1989. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC shall not
22、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 Directives see in
23、formative Annex ZZ, which is an integral part of this document. Endorsement notice The text of the International Standard IEC 60051-8:2017 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following note has to be added for the st
24、andard 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 600518:2018EN IEC 60051-8:2018 (E) 3 Annex ZA (normative) Normative references to i
25、nternational 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 references, the la
26、test 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 listed in th
27、is 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 600518:2018This page delib
28、erately left blank 2 IEC 60051-8:2017 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 4.2 Classification 7 4.3 Compliance with the requirements of this standard . 7 4.3.1
29、 General . 7 4.3.2 Interchangeable accessories of limited interchangeability 7 4.3.3 Non interchangeable accessories 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 un
30、certainty and accuracy class 8 5.2.3 Fiducial value 8 5.3 Nominal range of use and variations . 8 5.3.1 Nominal range of use . 8 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
31、requirements . 9 5.5.1 Electrical safety requirements 9 5.5.2 Self-heating . 9 5.5.3 Permissible overloads 10 5.5.4 Limiting range of temperature 11 5.5.5 Deviation from zero . 11 5.5.6 Electromagnetic compatibility (EMC) . 11 5.6 Constructional requirements . 11 5.6.1 General constructional require
32、ments . 11 5.6.2 Damping 11 5.6.3 Sealing to prevent access 11 5.6.4 Scales . 11 5.6.5 Stopper 11 5.6.6 Preferred values 11 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 . 12 5.6.10 Terminals 12 6 Informatio
33、n, markings and symbols 12 6.1 Information . 12 6.2 Markings, symbols and their locations . 12 6.3 Markings relating to the reference values and nominal ranges of use of influence quantities . 12 2 IEC 60051-8:2017 IEC 2017 CONTENTS FOREWORD . 4 INTRODUCTION . 6 1 Scope 7 2 Normative references 7 3
34、Terms and definitions 7 4 Description, classification and compliance . 7 4.1 Description . 7 4.2 Classification 7 4.3 Compliance with the requirements of this standard . 7 4.3.1 General . 7 4.3.2 Interchangeable accessories of limited interchangeability 7 4.3.3 Non interchangeable accessories 8 5 Re
35、quirements 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 . 8 5.3.1 Nominal range of us
36、e . 8 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 overloads 10 5.5.4 Limitin
37、g range of temperature 11 5.5.5 Deviation from zero . 11 5.5.6 Electromagnetic compatibility (EMC) . 11 5.6 Constructional requirements . 11 5.6.1 General constructional requirements . 11 5.6.2 Damping 11 5.6.3 Sealing to prevent access 11 5.6.4 Scales . 11 5.6.5 Stopper 11 5.6.6 Preferred values 11
38、 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 . 12 5.6.10 Terminals 12 6 Information, markings and symbols 12 6.1 Information . 12 6.2 Markings, symbols and their locations . 12 6.3 Markings relating to the
39、 reference values and nominal ranges of use of influence quantities . 12 BS EN IEC 600518:2018IEC 60051-8:2017 IEC 2017 3 6.4 The symbols for marking instruments and accessories 12 6.5 Markings and symbols for terminals 12 6.6 Instructions for use . 12 7 Package 12 8 Test rules 12 Annex A (normative
40、) Nonconformity classification of tests . 13 Bibliography 14 Table 1 Limits of the nominal range of use and permissible variations . 9 Table 2 Overloads of short duration . 10 Table A.1 Nonconformity classification of tests 13 BS EN IEC 600518:2018 4 IEC 60051-8:2017 IEC 2017 INTERNATIONAL ELECTROTE
41、CHNICAL COMMISSION _ DIRECT ACTING INDICATING ANALOGUE ELECTRICAL MEASURING INSTRUMENTS AND THEIR ACCESSORIES Part 8: Special requirements for accessories FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrote
42、chnical 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 Standards, Technical Specificatio
43、ns, 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 preparatory work. International,
44、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 organizations. 2) The formal decisi
45、ons 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 recommendations for interna
46、tional 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 any end user. 4) In orde
47、r 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 publication shall be clea
48、rly 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 IEC marks of conformity. IEC is not responsible for any services carried out by independent certification b
49、odies. 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 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
