mpulse Breakdown Strength of Nano-ZnO/XLPE Nanocomposite Material on Temperature Rise

Development of new materials using composite materials has been much interest. XLPE is a kind of power cable in high voltage insulation. Recently research for cable insulating material has shown that nano-size filler added to XLPE is electrically and physically stable. In this paper, Impulse strength was measured in XLPE that composite by adding na-no-ZnO with different mass proportions. There is positive and negative impulse voltage. However, there is no differ-ence between them on the film specimen. Therefore we tested only positive voltage. In order to understand temperature properties of XLPE nanocomposite sample, experiment of impulse breakdown strength were measured at room temper-ature and maximum allowable temperature (90℃). From this result, it can be considered that the breakdown strength of addition of th