Schedule 3 CERTIFICATION TESTS AND TESTING METHODS FOR ALTERNATING CURRENT WATTHOUR METERS

Northern Ireland

1. 1Pre-heating
2. 2Non-registration test
3. 3Accuracy tests
4. 4Methods of accuracy test
5. 5Conditions for testing
6. 6Test loads
7. 7Multi-register meters
8. 8Polyphase meters
9. 9Margins of error