Time-domain reflectometry for monitoring cable changes

This report presents the results of a preliminary study of the potential of enhanced time domain reflectometry in the electrical monitoring of cable changes. It was demonstrated that on both shielded and non-shielded cables, very small stresses can be detected. The stresses included cable heating, cable compression and bending, and immersion in water. It was concluded that almost continuous monitoring would be required to identify these small indicators of cable stress and aging. 24 figs.