Example AC revenue-meter accuracy classes at the point of interconnection: IEC 62053-22:2020 0.2S/0.5S and ANSI C12.1-2026 0.2/0.5
0.2S / 0.5S (IEC examples); 0.2 / 0.5 (ANSI examples)observed
| Value kind | observed — Reported measurements, counts, and specifications keep the precision and scope stated by their source; an exact specification is not treated as a range. |
|---|---|
| Caveat | These are type-test classes for the meter alone. The project must prove the accuracy of the complete CT, VT and timing chain separately. The utility's metering specification picks the standard and class at the point of interconnection. |
| As of | 2026-10 |
| Source | IEC 62053-22:2020; ANSI C12.1-2026 · Title and scope: transformer-operated static watt-hour meters of accuracy classes 0.1S, 0.2S and 0.5S |
| Review | checking…review by 2027-10-13 · standard cadence |
| Recorded changes | last 2026-10-13 · 2 revisions tracked |
| Claim id | utility-revenue-meter-accuracy-class-at-the |
Where the guide uses it
← Full numbers register — every date-stamped figure in the guide, with revision history.