1、 IEC 60051-1 Edition 6.0 2016-02 INTERNATIONAL STANDARD NORME INTERNATIONALE Direct acting indicating analogue electrical measuring instruments and their accessories Part 1: Definitions and general requirements common to all parts Appareils de mesure lectriques indicateurs analogiques action directe
2、 et leurs accessoires Partie 1: Dfinitions et exigences gnrales communes toutes les parties IEC 60051-1:2016-02(en-fr) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2016 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or uti
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20、ating analogue electrical measuring instruments and their accessories Part 1: Definitions and general requirements common to all parts Appareils de mesure lectriques indicateurs analogiques action directe et leurs accessoires Partie 1: Dfinitions et exigences gnrales communes toutes les parties INTE
21、RNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 17.220.20 ISBN 978-2-8322-3162-3 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publicat
22、ion from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 IEC 60051-1:2016 IEC 2016 CONTENTS FOREWORD . 5 INTRODUCTION . 7 1 Scope 8 2 Normative references. 8 3 Terms and definitions 9 3.1 General terms . 9 3.2 Description
23、of instruments according to their method of operation 13 3.3 Constructional features of instruments . 14 3.4 Characteristic features of instruments 16 3.5 Characteristic values . 17 3.6 Influence quantity, reference conditions, nominal range of use and preconditioning . 17 3.7 Uncertainty and variat
24、ions . 19 3.8 Accuracy, accuracy class and class index 21 3.9 Test 21 4 Description, classification and compliance 22 4.1 Description 22 4.1.1 Description according to methods of operation or nature . 22 4.1.2 Description according to environmental conditions 22 4.1.3 Description according to mechan
25、ical conditions 22 4.1.4 Description according to degrees of protection 22 4.2 Classification 22 4.3 Compliance with the requirements of this standard . 23 5 Requirements 23 5.1 Reference conditions . 23 5.2 Limits of intrinsic uncertainty, fiducial value . 23 5.2.1 Limits of intrinsic uncertainty 2
26、3 5.2.2 Correspondence between intrinsic uncertainty and accuracy class 23 5.2.3 Fiducial value. 23 5.3 Nominal range of use and variations 25 5.3.1 Nominal range of use . 25 5.3.2 Limits of variations . 27 5.3.3 Conditions for the determination of variations . 28 5.4 Operating uncertainty, overall
27、system uncertainty and variations 28 5.5 Electrical requirements 28 5.5.1 Electrical safety requirements 28 5.5.2 Self-heating . 28 5.5.3 Permissible overloads 29 5.5.4 Limiting range of temperature . 29 5.5.5 Deviation from zero 29 5.5.6 Electromagnetic compatibility (EMC) 29 5.6 Constructional req
28、uirements 30 5.6.1 General constructional requirements 30 5.6.2 Damping 30 5.6.3 Sealing to prevent access 30 5.6.4 Scales . 31 IEC 60051-1:2016 IEC 2016 3 5.6.5 Stopper 32 5.6.6 Preferred values 32 5.6.7 Adjusters, mechanical and/or electrical . 32 5.6.8 Effects of vibration and shock . 33 5.6.9 De
29、grees of protection provided by enclosure 33 5.6.10 Terminals . 34 6 Information, markings and symbols 34 6.1 Information 34 6.2 Markings, symbols and their locations 35 6.3 Markings relating to the reference values and nominal ranges of use of influence quantities . 36 6.4 The symbols for marking i
30、nstruments and accessories . 36 6.5 Markings and symbols for terminals . 45 6.5.1 Requirements for markings . 45 6.5.2 Earthing (grounding) terminals . 45 6.5.3 Measuring circuit terminals . 45 6.5.4 Special markings for terminals 45 6.6 Instructions for use 45 7 Package 46 8 Test rules 46 8.1 Type
31、of test . 46 8.2 Type tests . 46 8.3 Routine tests . 46 8.4 Recurrent tests . 46 8.5 Nonconformity classification 47 8.6 Judgement of test results 47 Annex A (normative) Limits of intrinsic uncertainty and variations . 48 Annex B (informative) Relationship between ambient temperature and relative hu
32、midity 51 Annex C (informative) Estimation of uncertainties . 52 C.1 Uncertainties in this standard 52 C.2 Operating uncertainty 52 C.2.1 General . 52 C.2.2 Estimating absolute operating uncertainty according to type test results 52 C.2.3 Estimating absolute operating uncertainty according to limit
33、of intrinsic uncertainty and limit of variations due to every influence specified by this standard 53 C.3 Overall system uncertainty 54 C.4 Fiducial operating uncertainty 54 Annex D (normative) Routine Tests 55 Bibliography . 56 Figure 1 Measuring range 10 A to 50 A . 31 Figure 2 Measuring range 80
34、V to 110 V . 32 Figure 3 Measuring ranges 0,06 M to 0,4 M and 0,1 M to 2 M 32 Figure A.1 Effect of temperature . 48 Figure A.2 Effect of temperature . 49 Figure B.1 Relationship between ambient temperature and relative humidity . 51 4 IEC 60051-1:2016 IEC 2016 Figure C.1 Different kinds of uncertain
35、ty . 52 Table 1 Minimum IP requirements 22 Table 2 Reference conditions and tolerances for testing purposes relating to the influence quantities . 24 Table 3 Limits of the nominal range of use and permissible variations . 26 Table 4 The diameters of conductive screw and the diameters or the area of
36、contact surface . 34 Table 5 Units, quantities and SI prefixes . 37 Table 6 Symbols for marking instruments and accessories 38 IEC 60051-1:2016 IEC 2016 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ DIRECT ACTING INDICATING ANALOGUE ELECTRICAL MEASURING INSTRUMENTS AND THEIR ACCESSORIES Part 1: Defi
37、nitions and general requirements common to all parts FOREWORD 1) The International Electrotechnical 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-operati
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47、his publication. 9) Attention is drawn to the possibility that some of the elements of this IEC 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 60051-1 has been prepared by IEC technical comm
48、ittee 85: Measuring equipment for electrical and electromagnetic quantities. This sixth edition cancels and replaces the fifth edition published in 1997. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edit
49、ion: adding the EMC requirements; updating the safety symbols and requirements according to new IEC 61010 series; replacing the concept of “error” to the concept of “uncertainty”; adding service environment classification and classification by method of operation, mechanical condition and the degrees of protection; 6 IEC 60051-1:2016 IEC 2016 adding the requirements for transport and storage of inst
