Thermal aging common test standards：
GB / T 7141, ASTM D3045, etc.
Electrical aging:
Electrical aging is more common in high-voltage electrical appliances. The main mechanism is the partial discharge of insulating materials under high voltage, which generates strong oxidant ozone. Ozone can easily cause ozone cracking of materials.
In addition, partial discharge will make oxygen and nitrogen combine to produce nitrogen oxides, which combine with moisture to form nitric acid, which will corrode insulating materials;
In addition, high-speed charged particles generated by partial discharges bombarded the molecules of the insulating material and affected their chemical bonds, which would cause their ionization and fission to be destroyed; in addition, partial discharges would increase the dielectric loss and cause local heating of the material, leading to thermal aging.
