July 10 to 13, State Grid Corporation of Communications Department of Chongqing Communications Research Institute of Design State Key Laboratory of Bridge Structural Dynamics, carried out 1000kV UHV standard porcelain arrester peak acceleration of 0.5g excitation of the seismic analog shaker Test, the test passed. The test results show that the porcelain arrester can resist the severe earthquake of 9 degrees (0.5g) and meet the seismic code requirements. State Department of Communication, China Electric Power Research Institute and invited experts witness the trial at the scene. According to the requirements of Code for Seismic Design of Power Facilities and Seismic Design of Elec- tron ​​Insulation for Insulated Electrical Equipment and Technical Regulations for the Installation and Maintenance of Vibration Absorption Equipment, UHV substations shall have a probability of exceeding 1% or 50 years beyond the basic fortification intensity of the local area % Level of seismic fortification capacity. Subject to the structural form and material properties, the porcelain sleeve supporting electrical equipment in the UHV substation located at 8 degrees (0.2g) and above generally can meet the design requirements by adopting seismic isolation technology to improve the seismic capacity of the equipment. May this year, Yu Heng - Weifang 1000 kV UHV AC power transmission project started, the project will promote Shaanxi and Shanxi energy base development and energy delivery, effectively easing the power shortage in the Middle East. Among them, Weifang UHV substation seismic safety assessment results for the 0.486g, has exceeded the maximum nine degrees of domestic electrical equipment (0.4g) basic fortification requirements. In response to the seismic demand of the project, under the strong support from State Grid Corporation, China Electric Power Research Institute has carried out the research on the optimization of the seismic performance of UHV surge arresters. The design scheme of a new type of porcelain sleeve with uniform standards has been put forward. The new standardized porcelain Set of arresters, in the porcelain sets of quality, delivery controllability, electrical and seismic performance have improved; and developed the type of arrester damping device, the test verified that it meets the 0.5g seismic requirements. The successful completion of this experiment provides a reliable technical support for the seismic design and construction of substation equipment in areas with high seismic intensity.