trapped key如何理解?(联锁方案)? The maintenance itnerlocking shall be of mechanical interference ( trapped key ) type utilizing a system of unique keys. Substation end of power station circuit shall be included in the interlocking scheme. 如题,感谢。 原帖地址: http://www.fane.cn/forum_view.asp?forum_id=19&view_id=60629 查看更多3个回答 . 5人已关注