I.S. EN IEC 62053-21:2021&A11:2021
Current
The latest, up-to-date edition.
Electricity metering equipment - Particular requirements – Part 21: Static meters for AC active energy (classes 0,5, 1 and 2) (IEC 62053-21:2020)
Hardcopy , PDF
English
09-08-2021
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Dates of withdrawal of national standards are available from NSAI.
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Standard electrical values
5 Construction requirements
6 Meter marking and documentation
7 Accuracy requirements
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 0,5, 1, and 2
Annex B (informative) Summary of changes
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