Abstract:It was briefly introduced on the basic information of Chilean seismic design,code for seismic design of high-voltage electrical equipment and seismic design of substation structures,and was elaborately discussed on the seismic design methods for electrical installations of substations and the relevant regulations.In aspects of precautionary objectives,seismic qualification levels,site class definitions,seismic design methods and the required response spectrum,make an analysis upon Chilean anti-seismic technologies of electrical installations and seismic codes,and make a brief introduction of basic provisions.Compared to Chilean codes for seismic design of electrical installations,there are many differences in aspects of seismic fortification classification,the site classification scheme,static and dynamic design methods,the seismic design response spectrum and so on.Considering different seismic environments,studying and introducing the advanced Chilean anti-seismic technologies are very important to improve our country's codes for seismic design and seismic capabilities of electrical equipment.