RELATES TO: KRS Chapter 278
NECESSITY, FUNCTION, AND CONFORMITY: KRS 278.280(2) provides that the commission shall prescribe rules for the performance of any service or the furnishing of any commodity by the utility. This administrative regulation establishes general rules which apply to electric utilities.
Period Test Schedule | ||
Self-Contained Meters | ||
Single phase | 8 years | |
3 wire network | 8 years | |
Polyphase | 6 years | |
Meters used with instrument transformers | ||
Single phase | 6 years | |
Polyphase | 4 years | |
Demand Meters | ||
Indicating block-interval and lagged-demand meters | same as associated watt-hour meter | |
Graphic and pulse operated recording demand meters | 2 years | |
Instrument Transformers | ||
Current: high burden test | same as associated watt-hour meter | |
Potential: secondary voltage test | same as associated watt-hour meter | |
Var-hour Meters | same as associated watt-hour meter | |
Direct Current Watt-hour Meters: | ||
Up to and including 6 KW | 4 years | |
Over 6 KW through 100 KW | 2 years | |
Over 100 KW | 1 year |
Percentage of Meters Within Limits of 2% Fast or Slow (Indicated by Sample) | Percentage of Meters to be Tested the Next Year | |
990 | 1000 | 2 |
980 | 989 | 4 |
970 | 979 | 6 |
960 | 969 | 8 |
950 | 959 | 10 |
930 | 949 | 12 |
910 | 929 | 14 |
Less than | 910 | 16 |
AC Watt-hour Meters | ||
% of Test Current | Power Factor | Allowable Tolerance |
100 | 1.0 | + or-1.0% |
10 | 1.0 | + or-1.0% |
100 | 0.5 | + or-1.0% |
DC Watt-hour Meters | ||
% of Test Current | Allowable Tolerance | |
100 | 1.0% | |
10 | 1.0% |
100% Power Factor | 50% Power Factor | |||
10% Current | 100% Current | 10% Current | 100% Current | |
Purchased after Jan. 1, 1942 | 1% | .75% | 3% | 2% |
Purchased prior to Jan. 1,1942 | 2% | 1.50 % | 5% | 3% |
807 KAR 5:041
STATUTORY AUTHORITY: KRS 278.280(2)