True dielectric breakdown strength of cable papers

The object of this study is to present a new unique way of controlling edge effect and thus obtain the true dielectric breakdown strength of electric cable insulating papers, to compare the dielectric strength of paper so determined with the dielectric strength of other materials and with the dielectric strength of built-up paper insulation, and to compare the dielectric strength of structures composed of saturated paper insulation with the intrinsic dielectric strength of the saturated paper.