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