On May 8, the Ministry of Science and Technology of State Grid Corporation of China organized a meeting for acceptance of scientific and technological projects, and the research project on seismic evaluation and shock absorption design of UHV electrical equipment undertaken by China Electric Power Research Institute passed the acceptance of the expert group.
According to the structural and material characteristics of UHV electrical equipment, the research project of seismic evaluation and shock absorption design of UHV electrical equipment has formulated the seismic fortification target, fortification level and seismic design standard spectrum of UHV electrical equipment; The bending stiffness coefficient of the joint of UHV electrical equipment is improved; The related factors affecting the dynamic amplification response of UHV electrical equipment support are studied, and the range of dynamic amplification coefficient of support under certain restrictions is put forward. The seismic evaluation method of UHV electrical equipment is determined. The design method of shock absorption is put forward, four new shock absorption devices are developed, and the installation, acceptance and maintenance rules of shock absorption devices are formulated. The enterprise standards "Technical Specification for Seismic Evaluation of UHV Electrical Equipment" (draft for review) and "Technical Specification for Seismic Design, Installation and Maintenance of UHV Electrical Equipment" (draft for review) were formed.
The research results of the project provide a reasonable evaluation basis for the seismic performance and safety performance of UHV electrical equipment, and provide a systematic solution for the seismic design, evaluation, optimization and reinforcement of UHV electrical equipment.