such point is given through study of corona discharge that the radio interference level of disconnector does not depen on size of shield ring but on curvature radius.

• 通过对电晕放电的研究，得出了隔离开关的无线电干扰水平取决于屏蔽环的曲率半径而与屏蔽环尺寸的大小关系不大的观点。