1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Direct acting indicating analogue electrical measuring instruments and their accessoriesPart 7: Special requirements for multi-function instrumentsBS EN IEC 60051-7:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM
2、EN IEC 60051-7 March 2018 ICS 17.220.20 Supersedes EN 60051-7:1989 English Version Direct acting indicating analogue electrical measuring instruments and their accessories - Part 7: Special requirements for multi-function instruments (IEC 60051-7:2017) Appareils mesureurs lectriques indicateurs anal
3、ogiques action directe et leurs accessoires - Partie 7: Exigences particulires pour les appareils fonctions multiples (IEC 60051-7:2017) Direkt wirkende anzeigende elektrische Megerte und ihr Zubehr - Megerte mit Skalenanzeige - Teil 7: Spezielle Anforderungen fr Vielfach-Megerte (IEC 60051-7:2017)
4、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 national standard without any alteration. Up-to-date lists and bibliographical
5、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 version in any other language made by translation under the responsibility
6、 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, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Forme
7、r 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, Switzerland, Turkey and the United Kingdom. European Committee for Electro
8、technical 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 exploitation in any form and by any means reserved worldwide for CENELEC Members.
9、 Ref. No. EN IEC 60051-7:2018 E National forewordThis British Standard is the UK implementation of EN IEC 60051-7:2018. It is identical to IEC 60051-7:2017. It supersedes BS 89-7:1990, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee PEL/85, Measuring e
10、quipment for electrical and electromagnetic 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 Bri
11、tish Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 93063 8ICS 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 30 Apri
12、l 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN IEC 60051-7:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IEC 60051-7 March 2018 ICS 17.220.20 Supersedes EN 60051-7:1989 English Version Direct acting indicating analogue electrical measuring ins
13、truments and their accessories - Part 7: Special requirements for multi-function instruments (IEC 60051-7:2017) Appareils mesureurs lectriques indicateurs analogiques action directe et leurs accessoires - Partie 7: Exigences particulires pour les appareils fonctions multiples (IEC 60051-7:2017) Dire
14、kt wirkende anzeigende elektrische Megerte und ihr Zubehr - Megerte mit Skalenanzeige - Teil 7: Spezielle Anforderungen fr Vielfach-Megerte (IEC 60051-7:2017) This European Standard was approved by CENELEC on 2018-01-19. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations w
15、hich 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 standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. T
16、his 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 language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CE
17、NELEC members are the national 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 Nether
18、lands, Norway, Poland, Portugal, 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 Manage
19、ment 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 60051-7:2018 E BS EN IEC 60051-7:2018EN IEC 60051-7:2018 (E) 2 European foreword The text of document 85/560/CDV, future edi
20、tion 5 of IEC 60051-7, prepared by IEC/TC 85 “Measuring equipment for electrical and electromagnetic quantities“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 60051-7:2018. The following dates are fixed: latest date by which the document has to be implemented at na
21、tional level by publication of an identical national standard or by endorsement (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 60051-7:1989. Attention is drawn to the possibility that some o
22、f the elements of this document may be the subject of patent rights. CENELEC 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
23、essential requirements of EU Directives. For the relationship with EU Directives see informative Annex ZZ, which is an integral part of this document. Endorsement notice The text of the International Standard IEC 60051-7:2017 was approved by CENELEC as a European Standard without any modification. I
24、n the official version, for Bibliography, the following note has to be added 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
25、IEC 60051-7:2018EN IEC 60051-7:2018 (E) 3 Annex ZA (normative) Normative references 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 docume
26、nt. For dated references, only the edition cited applies. For undated references, 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. NOT
27、E 2 Up-to-date information on the latest versions of the European Standards listed 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 gener
28、al requirements common to all parts EN 60051-1 2017 BS EN IEC 60051-7:2018This page deliberately left blank 2 IEC 60051-7:2017 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
29、 . 7 4.2 Classification 7 4.3 Compliance with the requirements of this standard . 7 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.
30、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. 8 5.3.3 Conditions for the determination of variations 8 5.4 Operating uncertainty, overall system uncertainty and variations 8 5.5 Electrical requirements . 8 5.5.1 Electrical s
31、afety requirements 8 5.5.2 Self-heating . 8 5.5.3 Permissible overloads 9 5.5.4 Limiting range of temperature 9 5.5.5 Deviation from zero . 9 5.5.6 Electromagnetic compatibility (EMC) . 9 5.6 Constructional requirements . 9 5.6.1 General constructional requirements . 9 5.6.2 Damping 9 5.6.3 Sealing
32、to prevent access 9 5.6.4 Scales . 9 5.6.5 Stopper 9 5.6.6 Preferred values 10 5.6.7 Adjusters, mechanical and/or electrical 10 5.6.8 Effects of vibration and shock 10 5.6.9 Degrees of protection provided by enclosure . 10 5.6.10 Terminals 10 6 Information, markings and symbols 10 6.1 Information .
33、10 6.2 Markings, symbols and their locations . 10 6.3 Markings relating to the reference values and nominal ranges of use of influence quantities . 10 6.4 The symbols for marking instruments and accessories 10 6.5 Markings and symbols for terminals 10 6.5.1 Requirements for markings 10 2 IEC 60051-7
34、: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 5 Requirements 8 5.1 Reference condit
35、ions 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 use . 8 5.3.2 Limits of variations.
36、 8 5.3.3 Conditions for the determination of variations 8 5.4 Operating uncertainty, overall system uncertainty and variations 8 5.5 Electrical requirements . 8 5.5.1 Electrical safety requirements 8 5.5.2 Self-heating . 8 5.5.3 Permissible overloads 9 5.5.4 Limiting range of temperature 9 5.5.5 Dev
37、iation from zero . 9 5.5.6 Electromagnetic compatibility (EMC) . 9 5.6 Constructional requirements . 9 5.6.1 General constructional requirements . 9 5.6.2 Damping 9 5.6.3 Sealing to prevent access 9 5.6.4 Scales . 9 5.6.5 Stopper 9 5.6.6 Preferred values 10 5.6.7 Adjusters, mechanical and/or electri
38、cal 10 5.6.8 Effects of vibration and shock 10 5.6.9 Degrees of protection provided by enclosure . 10 5.6.10 Terminals 10 6 Information, markings and symbols 10 6.1 Information . 10 6.2 Markings, symbols and their locations . 10 6.3 Markings relating to the reference values and nominal ranges of use
39、 of influence quantities . 10 6.4 The symbols for marking instruments and accessories 10 6.5 Markings and symbols for terminals 10 6.5.1 Requirements for markings 10 BS EN IEC 60051-7:2018IEC 60051-7:2017 IEC 2017 3 6.5.2 Earthing (grounding) terminals . 10 6.5.3 Measuring circuit terminals 10 6.5.4
40、 Special markings for terminals . 11 6.6 Instructions for use . 11 7 Package 11 8 Test rules 11 Annex A (normative) Nonconformity classification of tests . 12 Bibliography 13 BS EN IEC 60051-7:2018 4 IEC 60051-7:2017 IEC 2017 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ DIRECT ACTING INDICATING ANALO
41、GUE ELECTRICAL MEASURING INSTRUMENTS AND THEIR ACCESSORIES Part 7: Special requirements for multi-function instruments FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Com
42、mittees). 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 Specifications, Technical Reports, Publicly Avai
43、lable 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, governmental and non-governmental or
44、ganizations 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 decisions or agreements of IEC on technica
45、l 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 international use and are accepted by IEC N
46、ational 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 order to promote international uniformit
47、y, 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 clearly indicated in the latter. 5) IEC
48、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 bodies. 6) All users should ensure th
49、at 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 IEC Publication or any other IEC Publications
