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Method and apparatus for electrical cable testing by pulse-arrested spark discharge

United States Patent

February 8, 2005
View the Complete Patent at the US Patent & Trademark Office
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Electrical Cable Testing by Pulse-Arrested Spark Discharge (PASD)
A method for electrical cable testing by Pulse-Arrested Spark Discharge (PASD) uses the cable response to a short-duration high-voltage incident pulse to determine the location of an electrical breakdown that occurs at a defect site in the cable. The apparatus for cable testing by PASD includes a pulser for generating the short-duration high-voltage incident pulse, at least one diagnostic sensor to detect the incident pulse and the breakdown-induced reflected and/or transmitted pulses propagating from the electrical breakdown at the defect site, and a transient recorder to record the cable response. The method and apparatus are particularly useful to determine the location of defect sites in critical but inaccessible electrical cabling systems in aging aircraft, ships, nuclear power plants, and industrial complexes.
Barnum; John R. (Albuquerque, NM), Warne; Larry K. (Albuquerque, NM), Jorgenson; Roy E. (Albuquerque, NM), Schneider; Larry X. (Albuquerque, NM)
Sandia Corporation (Albuquerque, NM)
10/ 122,448
April 12, 2002
STATEMENT OF GOVERNMENT INTEREST This invention was made with Government support under contract no. DE-AC04-94AL85000 awarded by the U.S. Department of Energy to Sandia Corporation. The Government has certain rights in the invention.