Seismic Design Practices for Power Systems: Evolution, Evaluation, and Needs

by Anshel J. Schiff, Stanford Univ, Stanford, United States,

Document Type: Proceeding Paper

Part of: Lifeline Earthquake Engineering


The evolution of seismic design practices in electric power systems is reviewed. In California this evolution had led to many installation practices that are directed at improving the seismic ruggedness of power system facilities, particularly high voltage substation equipment. The primary means for substantiating the seismic ruggedness of important, hard to analyze substation equipment is through vibration testing. Current activities include system evaluations, development of emergency response plans and their exercise, and review elements that impact the entire system, such as energy control centers and communication systems. From a national perspective there is a need to standardize seismic specifications, identify a seismic specialist within each utility and enhance communications among these specialists. There is a general need to incorporate good seismic design practices on a national basis emphasizing new construction.

Subject Headings: Seismic design | Seismic effects | Seismic tests | Energy infrastructure | Electrical systems | Power transmission substations | Equipment and machinery | Electric power | California | United States

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