Shield Grounding and Circuit Grounding Effectiveness in Interference Reduction in the 50 Hz to 15 kHz Frequency Region

This paper discusses the results of a series of tests that were performed to determine the relative effectiveness of several circuit grounding methods and shield grounding methods in interference reduction between adjacent twisted shielded pairs contained within the same cable. The series of tests are described, and the data have been reduced to provide a matrix tabulation of figures of merit for the various combinations of victim circuit and source circuit shield grounding methods. The extent to which circuit grounding configurations affect victim circuit susceptibility is seen to be significant.