North Carolina Administrative Code
Title 04 - COMMERCE
Chapter 11 - UTILITIES COMMISSION
Chapter 8
Article 3 - METERS, METER TESTS AND RECORDS
Section 11 R08-11 - METHOD OF DETERMINING AVERAGE ERROR OF METERS
Universal Citation: 3 NC Admin Code 11 R 08-11
Current through Register Vol. 39, No. 6, September 16, 2024
(a) The average percent registration of a watt hour meter shall be determined using one of the following methods prescribed by the American National Standards Institute (ANSI) Standard C12.1 - Code for Electricity Metering, where "FL" means the percent registration at full load test amps and unity power factor, "LL" means the percent registration at light load test amps and unity power factor, and "PF" means the percent registration at full load test amps and 50% power factor:
(1) Method 1: Average percent
registration = (4FL + LL)/5.
(2)
Method 2: Average percent registration = (FL + LL)/2.
(3) Method 3: Average percent registration =
registration at a single load point when this single load point represents the
registration within the range.
(4)
Method 4: Average percent registration = (4FL + 2LL + PF)/7.
NCUC Docket No. T-100, Sub 49, 01/09/04; NCUC Docket No. E-100, Sub 153, 11/27/2019.
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