IEC 60387: AC Electricity Meters — From Induction Mechanical Meters to Smart Meters

Your Electricity Meter From “Spinning Disc” to “Digital Screen” — 50 Years of Meter Evolution

IEC 60387:1992 specifies AC electricity meter requirements. Traditional induction meters (spinning disc) use the alternating magnetic field from current and voltage coils to drive an aluminium disc — speed ∝ power. Modern electronic/smart meters sample voltage and current via ADC→digital multiplication→pulse output. IEC 60387 defines accuracy classes (Class 0.2S/0.5S/1.0/2.0).

TNLab — The evolution from pure electromechanical to fully digital meters encapsulates 50 years of power metering technology development.