GB/T 15022.2-2007 is the second part of the standard for Resin-based active composites for electrical insulation, focusing test methods. This standard specifies a variety of Test methods for such composites in electrical insulation applications, covering physical performance, electrical performance, thermal performance and other testing items. It clarifies the sample preparation, test steps, result calculation and accuracy requirements. It provides a unified technical basis for scientific evaluation of the mass of Resin-based active composites for electrical insulation, and ensures its insulation performance and Reliability.