- IEC 61071
- IEC 61881-1
- IEC 60068 basic environmental testing procedures
- IEC 60068 basic environmental testing procedures
- IEC 61373 railway applications Rolling stock equipment - shock and vibration tests


Power electronic capacitors (PEC) are specially designed for DC voltage and for non-sinusoidal AC waveforms of voltages and currents.
DC capacitors are periodically charged and discharged. This capacitor type is used to reduce the AC component of a DC voltage. Supporting or DC filter capacitors are used for energy storage.