Abstract :
J. D. Cobine (Harvard Graduate School of Engineering, Cambridge, Mass.): The authors have presented a comprehensive study of the performance of a composite dielectric, under high electrostatic stress, such as may exist, for example, in a cable or the slot insulation in an alternator. The consistency of the experimental results is evidence of the precision with which the over-all characteristics of insulation may be determined by the Dawes-Hoover bridge. In view of the uncertainties always involved in studies of a-c gas discharges, the material presented agrees remarkably well with the results of d-c investigations.
