NF C26-305:1993 Guide for the determination of thermal endurance properties of electrical insulating materials. Part 5 : guidelines for the application of thermal endurance characteristics.
2003NF C26-305:2003 Electrical insulating materials - Thermal endurance properties - Part 5 : determination of relative thermal endurance index (RTE) of an insulating material.
1993NF C26-305:1993 Guide for the determination of thermal endurance properties of electrical insulating materials. Part 5 : guidelines for the application of thermal endurance characteristics.