Leakage currents on non-ceramic insulators and materials

This paper presents a review of leakage current (Lc) measurements on nonceramic insulators and material samples. It is divided into two parts: First, the field investigations of LC, include a development of LC measuring systems and how the on-line LC measurements correlate to the insulator performance as well as to the atmospheric and pollution parameters. Then, the laho. ratory investigations, describe how the LC are used to evaluate materials, to develop new testingprocedures and to predict insulator performance. An extensive bibliography and additional references is provided.