NEHRP Clearinghouse

Earthquake Resistant Construction of Electric Transmission and Telecommunication Facilities Serving the Federal Government Report.
Yokel, F. Y.
Federal Emergency Management Agency, Washington, DC., February 1990, 46 p.
Identifying Number(s)
The vulnerability of electrical transmission and telecommunication facilities to damage in past earthquakes, as well as available standards and technologies to protect these facilities against earthquake damage are reviewed. An overview is presented of measures taken by various Federal agencies to protect electrical transmission and telecommunication facilities against earthquake hazards. It is concluded that while most new facilities which are owned and operated by Federal agencies are presently designed to provide some, though not necessarily adequate, earthquake resistance, there generally is no effort to retrofit existing facilities. No evidence was found of requirements to protect electrical transmission and communication facilities which have major contractual obligations to serve the Federal Government and only limited seismic design requirements are stipulated for electrical transmission systems constructed with Federal funding.
Building codes; Earthquake resistant structures; Earthquake engineering; Lifeline systems; Seismic design; Computer networks; Telephone systems; Soil-structure interactions; Transmission lines; Television systems; Radio communication; Design standards; Electric power generation; Power transmission; Telecommunication