residual current operated protective device

例句：

1. 1. The residual current protection device is designedto prevent electrical fires in homes.
   剩余电流保护装置旨在防止家庭电气火灾。
2. 2. Thedevice is used to detect and protect againstfaults in the electrical system.
   该设备用于检测和保护电气系统中的故障。
3. 3. Insome countries, it is mandatory for allhouseholds to have a residual current protectiondevice installed.
   在一些国家，所有家庭都必须安装剩余电流保护装置。