Supplier application: Conduct qualification and performance verification for disc-shaped porcelain insulator products with a voltage level of 500KV and a mechanical strength of 300KN or less.

    Qualification and performance verification results: After document verification and on-site assessment by the expert panel, and upon review and approval by the Materials Department of the State Grid Corporation of China, it is confirmed that your company possesses the necessary production and testing equipment, and that its process technology, quality management, and raw material and component management meet production needs. Your company also possesses type test reports and appraisal reports for 240KN and 300KN disc porcelain insulators, meeting the current requirements of the State Grid Corporation of China for 500KV voltage grade, 300KN and below mechanical strength disc porcelain insulator products.