  This study measures the voltage at which flashover occurs in compressed air
for a variety of dielectric materials and lengths in a uniform field for DC
voltages up to 100 kV. Statistical time lag is recorded and characterized,
displaying a roughly exponential dependence on breakdown voltage. Of the
materials tested, acrylic is observed to be the most resistant to flashover.
These data are intended to facilitate the design of compressed-air insulated
high voltage systems as an alternative to SF6 insulated systems.
