In the actual installation process of transmission lines, attention should be paid to the maintenance of seismic support, effectively manipulating the installation time of cable installation workers, fully supervising the progress of electrical equipment routing on the spot, and effectively laying out the internal power construction overlap and harmonious construction because seismic support is indispensable to ensure the normal operation of electrical equipment in buildings, The installation position of the seismic support shall be effectively designed when the outdoor feeding line is planted, so that the seismic support can reasonably ensure the seismic characteristics of the circuit in the building