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← ScienceWhich outcome results when a high voltage direct current transmission line is exposed to elevated levels of airborne NaCl?
A)Reduced corona discharge intensity
B)Increased surface flashover risk✓
C)Enhanced line carrier communication
D)Decreased power transmission losses
💡 Explanation
Elevated NaCl increases risk of surface flashover because deposition of the salt leads to increased surface conductivity. This enhances localized electric fields initiating dielectric breakdown as the mechanism. Therefore flashover risk rises rather than corona being quenched or affecting communications in other ways.
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