本规范涵盖了可用于拨动开关和按钮开关、断路器等零部件以及旋转开关、可变电阻器、电容器、电感器和变压器等旋转驱动部件的模制硅橡胶护套的一般要求。防尘套保护零部件执行机构不受沙子、灰尘、水和其他污染物的影响，并密封安装零部件的面板。

This specification covers the general requirements for molded silicone rubber boots which can be used on component parts such as toggle and pushbutton switches, circuit breakers, and rotary-actuated parts such as rotary switches, variable resistors, capacitors, inductors, and transformers. The boots protect the component parts-actuating mechanism from sand, dust, water and other contaminants, and seal the panel on which the component parts are mounted.