Test Procedures And Accuracies

(1) Meter and/or associated devices shall be tested and adjusted in accordance with American National Standard for Electric Meters – ANSI C12.1, latest edition. (a) Meters for Measurement of Purchased Electricity. Utilities purchasing electricity from non-utilities or from utilities outside the state must see that the instruments and meters that are necessary to furnish complete and accurate information as to the energy purchased are installed and tested in accordance with the requirements of the Commission. (b) General 1. All meters and/or associated devices, when tested, shall be adjusted as closely as practicable to the condition of zero (0) error. REGULATIONS FOR ELECTRIC COMPANIES CHAPTER 1220-04-04 2. All tolerances are to be interpreted as maximum permissible variations from the condition of zero (0) error. In making adjustments, no advantage of the prescribed tolerance limits shall be taken.