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1、BRITISH STANDARD BS EN 60051-1:1999 IEC 60051-1:1997 Direct acting indicating analogue electrical measuring instruments and their accessories Part 1: Definitions and general requirements common to all parts The European Standard EN 60051-1:1998 has the status of a British Standard ICS 17.220.20 Lice
2、nsed Copy: sheffieldun sheffieldun, na, Thu Nov 09 04:14:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60051-1:1999 This British Standard, having been prepared under the direction of the Electrotechnical Sector Committee, was published under the authority of the Standards Committee and comes i
3、nto effect on 15 June 1999 BSI 03-2000 ISBN 0 580 32603 9 National foreword This British Standard is the English language version of EN 60051-1:1998. It is identical with IEC 60051-1:1997. It supersedes BS 89-1:1990 which is withdrawn. The UK participation in its preparation was entrusted to Technic
4、al Committee PEL/85, Measuring equipment for electrical and electromagnetic quantities, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK int
5、erests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. From 1 January 1997, all IEC publications have the number 60000 added to the old number. For inst
6、ance, IEC 27-1 has been renumbered as IEC 60027-1. For a period of time during the change over from one numbering system to the other, publications may contain identifiers from both systems. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex whic
7、h lists normative references to international publications with their corresponding European publications. The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence
8、 Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itse
9、lf confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 35 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indi
10、cated in the amendment table on the inside front cover. Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 04:14:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60051-1:1999 BSI 03-2000i Contents Page National forewordInside front cove
11、r Foreword2 Text of EN 60051-15 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 04:14:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 04:14:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE
12、NORM EN 60051-1 December 1998 ICS 17.220.20Supersedes EN 60051-1:1989 + A1:1995 + A2:1995 Descriptors: Electrical measuring instruments, analogue indicating instruments, direct acting measuring instruments, accessories for electrical measuring instruments English version Direct acting indicating ana
13、logue electrical measuring instruments and their accessories Part 1: Definitions and general requirements common to all parts (IEC 60051-1:1997) Appareils mesureurs lectriques indicateurs analogiques action directe et leurs accessoires Partie 1: Dfinitions et prescriptions gnrales communes toutes le
14、s parties (CEI 60051-1:1997) Direkt wirkende anzeigende elektrische Megerte und ihr Zubehr Megerte mit Skalenanzeige Teil 1: Definitionen und allgemeine Anforderungen fr alle Teile dieser Norm (IEC 60051-1:1997) This European Standard was approved by CENELEC on 1997-10-01. CENELEC members are bound
15、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 standards may be obtained on application to the Cent
16、ral Secretariat 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 language and notified to the Central Secretariat has the same st
17、atus as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC Europ
18、ean Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1998 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CEN
19、ELEC members. Ref. No. EN 60051-1:1998 E Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 04:14:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60051-1:1998 2 BSI 03-2000 Foreword The text of document 85/166/FDIS, future amendment to IEC 60051-1:1984, prepared by IEC TC 85, Measuring equipmen
20、t for electromagnetic quantities, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as amendment A3 to EN 60051-1:1989 on 1997-10-01. The text of this document, together with that of IEC 60051-1:1984 and its amendments 1:1994 and 2:1995, was published by IEC as the fifth edi
21、tion of IEC 60051-1 in December 1997. According to a decision of principle taken by the Technical Board of CENELEC, the approval of EN 60051-1:1989/A3 has been converted into the approval of a new EN 60051-1. The following dates were fixed: Annexes designated “normative” are part of the body of the
22、standard. In this standard, Annex ZA is normative. Annex ZA has been added by CENELEC. Endorsement notice The text of the International Standard IEC 60051-1:1997 was approved by CENELEC as a European Standard without any modification. latest date by which the EN has to be implemented at national lev
23、el by publication of an identical national standard or by endorsement(dop) 1999-09-01 latest date by which the national standards conflicting with the EN have to be withdrawn(dow) 1999-09-01 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 04:14:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN
24、 60051-1:1998 BSI 03-20003 Contents Page Foreword2 Introduction5 1General5 1.1Scope5 1.2Normative references6 2Definitions6 2.1General terms6 2.2Description of instruments according to their method of operation8 2.3Constructional features of instruments10 2.4Characteristic features of instruments12
25、2.5Characteristic values12 2.6Influence quantity, reference conditions, nominal range of use and preconditioning13 2.7Errors and variations13 2.8Accuracy, accuracy class and class index14 3Description, classification and compliance14 3.1Description14 3.2Classification14 3.3Compliance with the requir
26、ements of this standard14 4Reference conditions and intrinsic errors15 4.1Reference conditions15 4.2Limits of intrinsic error, fiducial value15 5Nominal range of use and variations17 5.1Nominal range of use17 5.2Limits of variations17 5.3Conditions for the determination of variations19 6Further elec
27、trical and mechanical requirements19 6.1Voltage tests, insulation tests and other safety requirements19 6.2Damping19 6.3Self-heating20 6.4Permissible overloads20 6.5Limiting values of temperature20 6.6Deviation from zero20 7Constructional requirements20 7.1Sealing to prevent access20 7.2Scales21 Pag
28、e 7.3Indication of out-of-range values of the measurand22 7.4Preferred values22 7.5Adjusters, mechanical and/or electrical22 7.6Effects of vibration and shock23 8Information, general markings and symbols23 8.1Information23 8.2Markings, symbols and their locations24 8.3Markings relating to the refere
29、nce values and nominal ranges of use of influence quantities25 9Markings and symbols for terminals31 9.1Requirements for markings31 9.2Earthing (grounding) terminals31 9.3Measuring circuit terminals32 9.4Special markings for terminals32 10Tests to prove compliance with this standard32 Annex A-1 Test
30、s33 Annex B-1 Permissible errors and variations33 Annex ZA (normative) Normative references to international publications with their corresponding European publications35 Figure 1-1 Measuring range 8 A to 50 A21 Figure 2-1 Measuring range 80 V to 110 V21 Figure 3-1 Measuring ranges 0,06 M7 to 0,4 M7
31、 and 0,1 M7 to 2 M722 Figure 4-1 Effect of temperature33 Figure 5-1 Effect of temperature34 Table I-1 Reference conditions and tolerances for testing purposes relating to the influence quantities16 Table II-1 Limits of the nominal range of use and permissible variations18 Table III-1 Symbols for mar
32、king instruments and accessories26 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 04:14:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 4 blank Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 04:14:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60051-1:1998 BSI 03-20005 Introduction I
33、EC 60051 is published in separate parts according to the following structure and under the general title Direct acting indicating analogue electrical measuring instruments and their accessories. Part 1: Definitions and General Requirements Common to all Pans; Part 2: Special Requirements for Ammeter
34、s and Voltmeters; Part 3: Special Requirements for Wattmeters and Varmeters; Part 4: Special Requirements for Frequency Meters; Part 5: Special Requirements for Phase Meters, Power Factor Meters and Synchroscopes; Part 6: Special Requirements for Ohmmeters (Impedance Meters) and Conductance Meters;
35、Part 7: Special Requirements for Multi-function Instruments; Part 8: Special Requirements for Accessories; Part 9: Recommended Test Methods. Parts 2 to 9 are not complete in themselves and shall be read in conjunction with this Part 1. All of these pans are arranged in the same format and a standard
36、 relationship between subject and clause number is maintained throughout. In addition, tables, figures and annexes add a suffix to the part number in order to differentiate the pans. This re-arrangement will assist the reader of IEC 60051 to distinguish information relating to the different types of
37、 instruments. 1 General 1.1 Scope This standard applies to direct acting indicating electrical measuring instruments having an analogue display, such as: ammeters and voltmeters; wattmeters and varmeters; frequency meters of pointer and vibrating-reed types; phasemeters, power-factor meters and sync
38、hroscopes; ohmmeters, impedance meters and conductance meters; multi-function instruments of the above types. It also applies to certain accessories used with these instruments, such as: shunts; series resistors and impedance elements. If other accessories are associated with instruments, this stand
39、ard is applicable to the combination of the instrument and the accessory provided that the adjustments have been made for the combination. This standard also applies to a direct acting indicating electrical measuring instrument whose scale marks do not correspond directly to its electrical input qua
40、ntity, provided that the relationship between them is known. This standard also applies to instruments and accessories having electronic devices in their measuring and/or auxiliary circuits. This standard does not apply to special purpose instruments which are covered by their own IEC standards. Thi
41、s standard does not apply to special purpose devices which are covered by their own IEC standards when they are used as accessories. This standard does not contain either requirements for protection against environmental conditions or the relevant tests. However, when necessary, and then only by agr
42、eement between the manufacturer and the user, tests to approximate the conditions of use may be selected from IEC 60068. This standard does not specify requirements concerning dimensions of instruments or accessories (for the former, see IEC 60473). Licensed Copy: sheffieldun sheffieldun, na, Thu No
43、v 09 04:14:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60051-1:1998 6 BSI 03-2000 1.2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of IEC 60051. At the time of publication, the editions indica
44、ted were valid. All normative documents are subject to revision, and parties to agreements based on this part of IEC 60051 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. Members of IEC and ISO maintain registers of curre
45、ntly valid International Standards. IEC 60027, Letter symbols to be used in electrical technology. IEC 60050(301), (302), (303):1983, International Electrotechnical Vocabulary (IEV) Chapter 301: General terms on measurements in electricity Chapter 302: Electrical measuring instruments Chapter 303: E
46、lectronic measuring instruments. IEC 60051-9:1988, Direct acting indicating analogue electrical measuring instruments and their accessories Part 9: Recommended test methods. IEC 60068-2-6:1995, Environmental tests Part 2: Tests Test Fc and guidance: Vibrations (sinusoidal). IEC 60068-2-27:1987, Envi
47、ronmental testing Part 2: Tests Test Ea and guidance: Shock. IEC 60417:1973, Graphical symbols for use on equipment Index, survey and compilation of the single sheets. IEC 60473:1974, Dimensions for panel-mounted indicating and recording electrical measuring instruments1). IEC 60617-2:1996, Graphica
48、l symbols for diagrams Part 2: Symbol elements, qualifying symbols and other symbols having general application. IEC 61010-1:1990, Safety requirements for electrical equipment for measurement, control, and laboratory use Part 1: General requirements. 2 Definitions The values of a.c quantities, given
49、 in this standard, are r.m.s. values unless otherwise stated. For the purpose of this standard, terms as defined in IEC 60050 apply, together with the following additional terms. 2.1 General terms 2.1.1 electrical measuring instrument a measuring instrument intended to measure an electrical or non-electrical quantity using electrical means 2.1.2 analogue display instrument a measuring instrument intended to present or display the output information as a continuous function