BS 5691-1:1995 Guide for the determination of thermal endurance properties of electrical insulating materials - Part 1. General guidelines for ageing procedures and evaluation of test results
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This standard gives principles of test procedures to evaluate the thermal endurance of
electrical insulating materials and simple combinations of such materials; it describes the
conditions to be observed during the various tests and shows the basic analysis methods to
derive the temperature index, the relative temperature index and the halving interval, from
the test results. Attention is given to test data which do not completely satisfy the require-
ments of linearity and dispersion of the thermal endurance relationship.
BS 5691-1:1995 Guide for the determination of thermal endurance properties of electrical insulating materials - Part 1. General guidelines for ageing procedures and evaluation of test results