The Earthquake Engineering Online Archive

Seismic qualification and fragility testing of line break 550-kV disconnect switches

Takhirov, Shakhzod; Fenves, Gregory L.; Fujisaki, Eric M.

PEER-2004/08, Pacific Earthquake Engineering Research Center, University of California, Berkeley, 2005-02, pdf, 153 p. (400/P33/2004-08)

The objective of this study was to conduct seismic qualification and fragility testing of a single pole of a 550-kV porcelain disconnect switch. The main objectives of the study included static and dynamic testing of switch components (the tall supporting legs and the insulator posts) and determining the feasibility of replacing the blade with an equivalent shorter blade or a concentrated mass for seismic qualification testing of tall electrical equipment that cannot clear the table. The component testing also included static cantilever tests on the ceramic insulator posts to determine equivalent cantilever loads in failure.

Available online: http://peer.berkeley.edu/publications/peer_reports/reports_2004/0408.pdf