Electrical insulating materials - Thermal endurance properties - Part 5: Determination of relative thermal endurance index (RTE) of an insulating material— 39 стр.
Guide for the determination of thermal endurance properties of electrical insulating materials. Part 4: Ageing ovens - Section 1: Single-chamber ovens— 17 стр.
Recommendations for the classification of materials for the insulation of electrical machinery and apparatus in relation to their thermal stability in service— 31 стр.