Insulating oils

The most significant publications appearing in 1947 were the papers given at the first two series of Symposia on Insulating Oil sponsored by Subcommittee IV on Liquid Insulation of ASTM Committee D-9 on Electrical Insulating Materials. The first series was held at Altantic City on October 16, 1946 and the second series was also held at Atlantic City on June 17, 1947. All of the papers together with the discussions recorded at the meetings were published during 1947 in the ASTM Bulletin.^(1.2) The symposia were, in general, concerned with the review and discussion of possible ways of improving the life of insulating oil in electrical apparatus and also with the development of laboratory tests and means of evaluating new oil, or oil for continued use for electrical insulation purposes. It will be possible in this review to give only a general idea of the scope of the papers and the discussions.