An earthingdevice of overtension protection will be introduced.
并详细介绍了作者设计的一种过电压保护接地装置。
2
The earthing switch in high-voltage switchgear is a kind of mechanical earthingdevice used at the time of maintenance and repair to insure the safety of personnel.
高压开关柜中的接地开关是作为检修时，保证人身安全，用于接地的一种机械接地装置。
3
So the loop network-earthingdevice must be designed in combination with building characters and the earthing resistance can be estimated with a simplified formula.