Project Title/ID Number Database of Seismic Parameters of Equipment in Substations—Lifelines 413
Start/End Dates 10/1/02—9/30/03
Project Leader

Dennis Ostrom (Industrial Collaborator)

Team Members  
Project goals and objectives

Electrical substations consist of many pieces of equipment that are vulnerable to earthquakes. Vulnerability depends on a variety of parameters including equipment type, voltage, manufacturer, seismic design criteria, installation and anchorage, foundations and soil conditions, and connection to other equipment. In order to be able to make accurate and standardized estimates of potential losses in earthquakes and to set priorities for equipment upgrades and replacements, an accurate database of the relevant seismic-performance parameters of substation equipment is needed. In this project, a comprehensive procedure for compiling seismic performance parameters will be developed and documented. The experience gained in assessing seismic vulnerability of substation equipment in previous PEER Lifelines Program research will be incorporated.

Role of this project in supporting PEER’s vision

Reducing earthquake risk to electric utility systems.

Methodology employed
Monte Carlo simulation for system risk assessment.
Brief description of past year’s accomplishments and more detail on expected Year 6 accomplishments

Project is just getting started.

Other similar work being conducted within and outside PEER and how this project differs

Project is unique in that it will develop a generic data collection procedure for electric utility substations. No similar work on PG&E facilities is currently being conducted. The Project will however, build on experience from similar data collection at Southern California Edison facilities.

Plans for Year 7 if this project is expected to be continued

No current plans, but could develop a risk assessment software for utility systems.

Describe any instances where you are aware that your results have been used in industry

Southern California Edison system earthquake risk assessment.

Expected milestones

  1. A detailed procedure for collecting seismic parameters of substation equipment
  2. A report describing the characteristics of the database and defining the contents of each data field.
  3. A report describing the pilot integration of hypothetical substation data into a network performance model.