Considering the skin effect of alternating current, power plants often use槽形 or 菱形 busbars for their high-current busbars to effectively utilize conductor materials and facilitate heat dissipation. Additionally, in high-voltage transmission and distribution lines, the use of steel-core aluminum conductors instead of aluminum conductors saves aluminum wire and increases the mechanical strength of the conductors, all leveraging the skin effect principle. The skin effect is one of the fundamental distortion processes in signal lines and can easily be overlooked or misunderstood. Contrary to the exaggerated claims of general signal line promotions, the skin effect does not alter all high-frequency signals and does not cause any loss of kinetic energy. On the contrary, the skin effect manifests as an intermittent phenomenon when transmitting high-frequency signals due to the different components of the conductor. Similarly, on aging cable conductors, the skin effect exacerbates the interplay of signal currents across multiple cables, resulting in unpleasant, piercing markings for sound.