@article{oai:nagoya.repo.nii.ac.jp:00030844, author = {Ieda, Masayuki and Hikita, Masayuki}, issue = {2}, journal = {Memoirs of the Faculty of Engineering, Nagoya University}, month = {Mar}, note = {Much experimental work has been done on the electrical breakdown of solid dielectrics, and a number oh breakdown theories have been proposed. Many problems, however, still remain on the breakdown process of polymers. Here, the breakdown processes of polymers are discussed from the standpoint of the inherent properties of polymers such as chemical structure, structural irregularities, the presence of additives, molecular motion and so on. Further, as for the long-term breakdown processes of polymer insulation systems, electrical degradations caused by partial discharge and treeing breakdown have been mentioned as important factors. Using experimental results obtained in our laboratory together with those presented by others, our considerations on fundamental processes of electrical degradation are reported. Also, the behavior of dc trees caused by space charge accumulation is discussed with the nature of carrier injection and trapping in polymers, which is estimated by thermally stimulated current and thermoluminescence measurements.}, pages = {205--253}, title = {Recent studies on electrical breakdown in polymers}, volume = {35}, year = {1984} }