Schedule 3 CERTIFICATION TESTS AND TESTING METHODS FOR ALTERNATING CURRENT WATTHOUR METERS
England, Wales and Scotland
- 1Pre-heating
- 2Induction meters
- 3Accuracy tests
- 4Methods of accuracy test
- 5Reference conditions for all testing
- 6Test loads
- 7Induction meters
- 8Polyphase meters
- 9Margins of error