GB/T 11026.1-2016 "Electrical insulating materials - heat resistance - Part 1: Evaluation of aging procedures and test results" stipulates the aging procedures for electrical insulating materials heat resistance testing and the basic method for evaluating test results. The standard applies to electrical insulating materials and their simple combinations. The heat resistance characteristic parameters of the materials are determined through the control and result evaluation of the aging process. The standard contains the application hypothesis of the Arrhenius relationship, which provides a scientific basis for the long-term performance evaluation of materials and is widely used in the research and development of electrical insulating materials.