Abstract
Thermal endurance tests to AIEE No. 571 were performed in six laboratories employing varnished specimens prepared in one laboratory with enameled wire from a single source. The results have been analyzed to test the hypothesis of the departure from linearity of the relationship between the logarithm of life and the inverse of the absolute temperature, with the object of subsequent limited extrapolation. Consideration is given to the variation between the results of different laboratories, and to reducing testing time. Comparison is made with previous AIEE results. Detailed numerical results are given.

This publication has 2 references indexed in Scilit: