IEEE 1573-2003

The Recommended Practice applies to ac-dc and dc-dc electronic power subsystems. The range of power subsystems includes dc, single phase, and three-phase inputs, with elements having power levels from a fraction of a watt to 20 kW. The voltage range is 600 V and below, at a frequency or frequencies of dc -1 kHz. The recommended practice may be used outside the range where applicable.