Ratio error et Phase rectus error test
Test notitia alta et stabilis accurate
Patefacio-circuitus & propinquus-circuitus functionis demagnetizationis
Cum super current, per intentionem, verticitatem e converso, onerare et iniuriam wiring tutelam
Applicable standard: IEC 60044 or ANSI/IEEE C57.13 (pendet a elit requisitis)