Marine Electrical Systems USCG Question #1061 (Set 36)

As shown in figure "A" of the illustration, what phenomenon is illustrated with respect to electrical cables and ground? EL-0126

USCG Exam Illustration EL-0126
USCG Examination Diagram: Illustration EL-0126
Official USCG Answer & Rule Citation

Correct Answer: Option D — distributive capacitance

Parallel insulated conductors exhibit distributed capacitance due to the dielectric effect between adjacent conductors and the surrounding metal hull. Per IEEE 45 and 46 CFR Subchapter J, this non-localized capacitive coupling creates continuous capacitive reactance along the entire run of marine electrical cables.

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