Study on Mechanical Properties of Transmission Pipe Materials

To make the mechanical properties of the transmission pipeline material work effectively, the finite element analysis method was adopted. According to the national seismic code, GIL modal analysis and response spectrum analysis were carried out to obtain the mechanical vibration characteristics of GIL. The direction of GIL laying was inconsistent with the direction of seismic wave propagation. The results showed that the seismic excitation direction affected the GIL seismic response, and the insulator and conductor were weak parts of the GIL seismic response. In summary, changes in structure and material parameters significantly affect the seismic capacity of GIL. Under the premise of satisfying the electrical characteristics, reasonable selection of insulator and conductor parameters is beneficial to improve the overall seismic capacity of the GIL.