《ir46_cd3_tc12_051125 电能表国际建议》由会员分享，可在线阅读，更多相关《ir46_cd3_tc12_051125 电能表国际建议（54页珍藏版）》请在金锄头文库上搜索。
1、Revision of IR 46 OIML TC12/WG1 COMMITTEE DRAFT OIML/CD3 Date: 25 Nov 2005 Reference number: OIML TC12/WG1/2 OIML/TC 12 OIML/TC /SC Supersedes document: OIML TC12/WG1/1 OIML/TC 12 Title: Instruments for measuring electrical quantities Secretariat: Germany Circulated to P- and O-members and liaison i
2、nternal bodies and external organizations for: ? discussion at (date and place of meeting): xx ? comments by xx ?vote (P-members only) and comments by xx xxmber 200x TITLE OF THE CD (English): Revision OIML IR 46 Electricity Meters TITLE OF THE CD (French): Revision OIML IR 46 Compteurs dnergie Orig
3、inal version in: English . Draft IR46_CD3_TC12 25 nov 2005 kopia.doc last saved:28.11.05 Printed: 28.11.05 page 1/43 Revision of IR 46 OIML TC12/WG1 OIML International Recommendation 46 Electricity Meters Draft Revision Committee Draft CD 2 xx Draft IR46_CD3_TC12 25 nov 2005 kopia.doc last saved:28.
4、11.05 Printed: 28.11.05 page 2/43 Revision of IR 46 OIML TC12/WG1 CONTENTS EXPLANATORY NOTE FOREWORD 1 Scope . 8 2 Bibliography 8 3 Terminology 9 3.1 Meters and their constituents. 9 3.1.1 Electricity meter 9 3.1.2 Watt-hour meter 9 3.1.3 Note: Since this Recommendation only deals with watt-hour met
5、ers, the short form “meter” is used.Demand meter. 9 3.1.4 Direct connected meter. 9 3.1.5 Transformer operated meter. 9 3.1.6 Electromechanical meter 9 3.1.7 Static meter. 9 3.1.8 Measuring element. 9 3.1.9 Current circuit . 10 3.1.10 Voltage circuit. 10 3.1.11 Indicating device, display 10 3.1.12 R
6、egister 10 3.1.13 Primary register 10 3.1.14 Register multiplier. 10 3.1.15 Meter constant 10 3.1.16 Test output 10 3.1.17 Adjustment device 10 3.1.18 Ancillary device, auxiliary device 10 3.2 Metrological characteristics 11 3.2.1 Current (I) . 11 3.2.2 Starting current (I ) st. 11 3.2.3 Minimum cur
7、rent (I), (Ed. alt. Low current (I) minlow . 11 3.2.4 Transitional current (I ) tr. 11 3.2.5 Maximum current (I) max. 11 3.2.6 Voltage (U) 11 3.2.7 Nominal voltage (U) nom. 11 3.2.8 Frequency (f) 11 3.2.9 Nominal frequency (f) nom. 11 3.2.10 Harmonic 11 3.2.11 Harmonic number. 11 3.2.12 Distortion f
8、actor (d). 11 3.2.13 Power factor (PF) 12 3.2.14 Active power . 12 3.2.15 Active energy 12 3.2.16 Absolute error (of indication) 12 3.2.17 Relative error (of indication) 12 3.2.18 Maximum permissible error (m.p.e.). 12 3.2.19 Base maximum permissible error. 12 3.2.20 Maximum permissible error shift.
9、 13 Draft IR46_CD3_TC12 25 nov 2005 kopia.doc last saved:28.11.05 Printed: 28.11.05 page 3/43 Revision of IR 46 OIML TC12/WG1 3.2.21 Intrinsic error. 13 3.2.22 Initial intrinsic error 13 3.2.23 Influence quantity 13 3.2.24 Influence factor. 13 3.2.25 Disturbance. 13 3.2.26 Rated operating conditions
10、. 13 3.2.27 Reference conditions 13 3.2.28 Class index . 13 3.2.29 Durability. 13 3.2.30 Fault 13 3.2.31 Significant fault . 14 3.2.32 Critical change value 14 3.2.33 Checking facility 14 3.2.34 Metrologically sensitive components 14 3.2.35 Significant durability error. 14 4 Metrological Requirement
11、s. 14 4.1 Rated operating conditions 14 4.2 Accuracy requirements 15 4.2.1 General. 15 4.2.2 Handling of the energy flow direction . 16 4.2.3 Maximum permissible errors at rated operating conditions 16 4.2.4 Allowed effects of disturbances 17 4.3 Mechanical requirements. 19 4.4 Name plate, markings
12、19 4.5 Protection against tampering, sealings 20 4.5.1 General provisions 20 4.5.2 Protection of hardware and firmware 21 4.6 Suitability for use 21 4.6.1 Readability of result 21 4.6.2 Testability 21 4.6.3 Checking facility 22 4.7 Durability 22 4.7.1 Reliability and durability requirement 22 5 Type
13、 approval. 23 5.1 Documentation. 23 5.2 Type definition 23 5.2.1 Type test sampling 23 6 Test program 24 7 Test procedures for type approval . 24 7.1 Test conditions. 24 7.2 Tests for maximum permissible error. 25 7.2.1 Determination of initial intrinsic error 25 7.2.2 Continuous maximum current. 25
14、 7.2.3 Starting current. 25 7.2.4 Test of no-load condition 26 7.2.5 Meter constants 26 7.2.6 Reverse running detent 27 7.2.7 Influence factors . 27 Draft IR46_CD3_TC12 25 nov 2005 kopia.doc last saved:28.11.05 Printed: 28.11.05 page 4/43 Revision of IR 46 OIML TC12/WG1 7.3 Test for disturbances 29
15、7.3.1 Semi steady-state disturbances . 29 7.3.2 Disturbances of transient nature. 34 8 Examination for conformity with type approval. 46 9 INITIAL VERIFICATION AND SUBSEQUENT-VERIFICATION 46 9.1 General 46 9.2 Testing . 46 9.2.1 Calibration status 46 9.2.2 Conformity check 46 9.2.3 Warming-up 46 9.2
16、.4 Test for base maximum permissible error 46 9.2.5 Sealing 47 9.3 Reference conditions for initial and subsequent verifications in laboratory. 48 9.4 Additional requirements for the statistical verifications and in-service inspections . 48 Annex A. 51 A.1 Estimate of conventional overall maximum probable uncertainty 51 A.1.1 Estimation based on the requirements of this Recommendation. 51 A.1.2 Estimation based on type test results and specific conditions . 52 Annex B. 53 B.1 Leg
