NCJ Number
118068
Journal
Journal of Forensic Sciences Volume: 34 Issue: 3 Dated: (May 1989) Pages: 633-637
Date Published
1989
Length
5 pages
Annotation
Fires caused by electrical shortings are difficult to identify with certainty from fire pattern analysis alone.
Abstract
Surface analysis techniques, such as electron spectroscopy for chemical analysis (ESCA) and auger electron spectroscopy (AES), can be used to determine the history of an electrical short circuit by characterizing the environment in which the electrical arc residues were formed. In a fire that destroys insulation, the surface of the arc bead formed from the resultant electrical short circuit would show the presence of combustion products. If the electrical short circuit occurred before the fire had started, then arc bead analysis would show the absence of combustion products. (Author abstract)