earthing position

基本解释

Remove operating lever. Slide remains open if the earthing switch is in the closed position.
拿开接地开关操作杆，如果接地开关已合上，滑板处于接地开关操作孔底部不上弹；
5xts.com
Three working position switch is an electric equipment used in switching on, disconnecting and earthing, The operating machine is a key part.
三工位开关是用于接通、隔离、接地的电气设备，操作机构是它的核心部件。
With the earthing switch closed, insertion of the withdrawable part towards the service position must be blocked after only two clockwise turns of the crank.
如果接地开关处于合闸状态，手车向工作位置的操作必须被机械联锁锁定。
5xts.com