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BS EN IEC 62053-22:2021 Electricity metering equipment. Particular requirements - Static meters for AC active energy (classes 0,1S, 0,2S and 0,5S), 2021
- undefined
- Annex ZA(normative)Normative references to international publicationswith their corresponding European publications
- English [Go to Page]
- CONTENTS
- FOREWORD
- INTRODUCTION
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Standard electrical values [Go to Page]
- 4.1 Voltages
- 4.2 Currents [Go to Page]
- 4.2.1 Nominal currents
- 4.2.2 Starting current
- 4.2.3 Minimum current
- 4.2.4 Maximum current
- 4.3 Frequencies
- 4.4 Power consumption
- 5 Construction requirements
- 6 Meter marking and documentation
- 7 Accuracy requirements [Go to Page]
- 7.1 General test conditions
- 7.2 Methods of accuracy verification
- Table 1 – Starting current
- Table 2 – Minimum current [Go to Page]
- 7.3 Measurement uncertainty
- 7.4 Meter constant
- 7.5 Initial start-up of the meter
- 7.6 Test of no-load condition
- 7.7 Starting current test
- 7.8 Repeatability test
- 7.9 Limits of error due to variation of the current
- 7.10 Limits of error due to influence quantities
- Table 3 – Acceptable percentage error limits (single-phase meters and poly-phase meters with balanced loads or single-phase loads)
- Table 4 – Acceptable limits of variation in percentage error due to influence quantities [Go to Page]
- 7.11 Time-keeping accuracy
- 8 Climatic requirements
- 9 The effects of external influences
- 10 Type test
- Annex A (informative) Comparison of acceptable percentage error limits at reference conditions for meters of classes 0,1 S, 0,2 S, and 0,5 S
- Figure A.1 – Comparison of acceptable percentage error limits for meters of classes 0,1 S, 0,2 S,and 0,5 S, with In = 5 A and Imax = 10 A, at PF = 1,0
- Figure A.2 – Comparison of acceptable percentage error limits for meters of classes 0,1 S, 0,2 S, and 0,5 S, with In = 5 A and Imax = 10 A,at PF = 0,5 inductive or PF = 0,8 capacitive
- Annex B (informative) Summary of changes [Go to Page]
