Damped AC has been discussed in the industry as being used for withstand testing. However, it
does not fit the definition of Monitored Withstand used in this document for a valid source for
withstand testing. As defined in Section 3.8.1, DAC does not meet the constant RMS voltage or
prescribed time criteria. To verify the effectiveness of a source, field data are required showing the
pass and fail of components. As far as the CDFI can ascertain, no such data are available for DAC.
Section 3.12.6.1 contains a more detailed discussion of the issues associated with DAC.