Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
3.1 General definitions
3.2 Definitions related to the functional elements
3.3 Definitions of mechanical elements
3.4 Definitions of insulations
3.5 Definitions of meter quantities
3.6 Definitions of influence quantities
3.7 Definition of tests
4 Requirements
4.1 Standard electrical values
4.2 Mechanical requirements
4.3 Climatic conditions
4.4 Electrical requirements
4.5 Electromagnetic compatibility (EMC)
4.6 Accuracy requirements
5 Tests and test conditions
5.1 General testing procedures
5.2 Tests of mechanical requirements
5.3 Tests of climatic influences
5.4 Tests of electrical requirements
5.5 Tests for electromagnetic compatibility (EMC)
5.6 Tests of accuracy requirements
Annex A (normative) Relationship between ambient air
temperature and relative humidity
Annex B (normative) Test circuit diagram for d.c., even
harmonics, odd harmonics and sub-harmonics
Annex C (normative) Voltage waveform for the tests of
the effect of voltage dips and short interruptions
Annex D (normative) Electromagnet for testing the influence
of externally produced magnetic fields
Annex E (informative) Test schedule
Annex F (normative) Test circuit diagram for the test of
immunity to earth fault
Annex G (normative) Optical test output
Annex ZA (normative) Normative references to international
publications with their corresponding European
publications