18/30350323 DC : DRAFT APR 2018
Current
The latest, up-to-date edition.
BS EN 62053-21 - ELECTRICITY METERING EQUIPMENT (A.C.) - PARTICULAR REQUIREMENTS - PART 21: STATIC METERS FOR ACTIVE ENERGY (CLASSES 1 AND 2)
03-06-2018
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Standard electrical values
5 Mechanical requirements
6 Climatic conditions
7 Electrical requirements
8 Accuracy requirements
Annex A (normative) - Test circuit diagram for d.c.,
even harmonics, odd harmonics and
sub-harmonics
Annex B (normative) - Electromagnet for testing
the influence of externally produced
magnetic fields
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