. . . "and 0.5 Accuracy Classes [0073] All of which are known in the art and are herein incorporated by reference. [0074] Other specification/standards which apply to revenue meters include ISO Specification MTR1-96, ???Engineering Specification for Polyphase Solid State Electricity Meters for Use on the ISO Grid,??? herein incorporated by reference. [0075] Referring to the drawings, and particularly FIG" .