Historical
IEC/TR 60725 Ed. 1.0 b:1981
Considerations on reference impedances for use in determining the disturbance characteristics of household appliances and similar electrical equipment
Records the information that was available and the factors that were taken into account in arriving at the reference impedance of 0.4+ j 0.25 ohm which has been incorporated in IEC 60555. Has the status of a technical report.
International Electrotechnical Commission [iec]