Paragraph 4 Methods of test
Method A test
(1)
A long period dial test where the advance of a kWh display, which is part of or connected to a meter under test, is compared with the advance of a precision kilowatt-hour meter.
Method B test
(2)
A short period test where the rate of advance of a meter under test is compared to the rate of advance of a precision kilowatt-hour meter.
Method C test
(3)
A short period test where the calculated rate of advance of a meter under test is compared to actual rate of advance for constant power conditions over a specified test period.