The research project of seismic shock absorption of uHV electrical equipment passed the acceptance
On May 8th, the science and technology Department of State Grid Corporation of China organized a science and technology project inspection meeting in Beijing, and the earthquake evaluation and shock absorption design research project of uHV electrical equipment undertaken by China Electricity Research Institute successfully passed the acceptance of the expert group.
According to the structure and material characteristics of uHV electrical equipment, the seismic fortification target, fortification level and seismic design standard spectrum of UHV electrical equipment are formulated. The bending stiffness coefficient of the connection of uHV electrical equipment is improved. The factors influencing the dynamic amplification response of uHV electrical equipment support are studied, and the range of dynamic amplification coefficient of support under certain restriction conditions is proposed. The seismic evaluation method of uHV electrical equipment is determined. The damping design method was put forward, four new damping devices were developed, and the rules for installation, acceptance and maintenance of damping devices were formulated. The enterprise standard "Technical Specification for Seismic Evaluation of UHV Electrical Equipment" (submitted for review) and "Technical Specification for Shock absorption Design, Installation and Maintenance of UHV Electrical Equipment" (submitted 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.