产品概述：

随着国网检验日趋严苛，同时各种误操作层出不穷，所以为了解决现有产品五防误操作问题(即当断路器机构合闸后，在挡住隔离主轴失效的情况下手柄插入隔离操作孔可以强行断开隔离开关造成严重安全隐患)，特改进了此断路器和隔离机构硬连锁方案，真正达到了“硬”连锁要求。

With the increasingly strict inspection of the State Grid, and at the same time various misoperations emerge endlessly, in order to solve the problem of five anti-misoperation of existing products (that is, when the circuit breaker mechanism is closed, the handle can be inserted into the isolation operation hole in the case of blocking the failure of the isolation spindle and can forcibly disconnect the disconnector and cause serious safety hazards), the hard chain scheme of this circuit breaker and isolation mechanism is specially improved, and the "hard" chain requirements are truly met.