Paragraph 4 Methods of accuracy testI1
Northern Ireland
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 actual rate of advance of a meter when tested under constant power conditions over a specified test period, is compared to the calculated rate of advance for those conditions.
Annotations
Commencement
- I1
Sch. 1 para. 4 in operation at 1.2.1999, see reg. 1