设计担当确认ハンドル、レバー、ノブが金属製であり、それらのシャフトや固

如果金属制成的手柄，杠杆和旋钮由金属制成，并且当绝缘层破裂时它们的轴和固定装置成为带电部件，则手柄，杠杆和旋钮应充分覆盖绝缘体，或者应保护可接触的部分并使其绝缘。由轴和紧固件绝缘。满足§16.3的保护绝缘的耐压测试，它被认为是足够的保护绝缘材料。

如果负责设计的确认手柄、操纵杆和旋钮由金属制成，并且其轴或夹具在绝缘断裂时成为充电部件，则手柄、操纵杆和旋钮应完全覆盖绝缘，或者接触部件通过保护绝缘与轴和夹具隔离。 满足 ±16.3 保护绝缘的电压测试时，应视为足够的保护绝缘材料。

The handle, lever, and knob are made of metal, and if the shaft and fixture are to be charged at the time of dielectric breakdown, the handle, lever, and knob can be covered with an insulator or insulated from the shaft or fixture by the insulation. In the case where the withstand voltage test of the protective insulation of 16.3 is satisfied, it is regarded as a sufficiently protective insulating material.<br>