•  For the research and consulting service in the field of HV power transmission and distribution, such as external insulation performance and electro-magnetic environmental impact.

•  For type tests and quality inspection of power system equipment, such as electric insulators, surge arresters, power transformers, reactors and arc suppression coils, and electric performance tests for HV power equipment.

•  For the services of external insulation design of DC power transmission projects, acceptance checking of imported equipments and the R&D of domestic DC equipment.