If you were to leave a grounded cable stationary in an energized high-frequency electrode for a while, you would notice that the insulation is noticeably warmer where it made contact with the corona field.

• 如果我们将一根接地电缆稳定放在施以高频电极电压的电极中一会儿?你将注意到与电晕有接触的绝缘部分有明显的变热。