Rating of cables in relation to voltage: Summarized history of published knowledge bearing upon the performance of insulation under electric stress: Prepared by the subcommittee on wires and cables of the standards committee

Introduction UNDER the auspices of the Wires and Cables Subcommittee of the Standards Committee of the Institute, a symposium on the rating of cables with reference to heating due to conductor losses only, was held during the 1921 Midwinter Convention of the Institute with the object of checking the Institute's standards in regard to permissible operating temperatures for cable insulation. That is, the discussion was limited to the matter of the safe maximum operating temperature of low-voltage cables with negligible dielectric losses.