Switch Railway Point Clamp Hook and Lock

Scope of use of portable hook lock: 

1. Lock switch when repairing switch signal switch machine. 

2. Lock the switch when passing the special train.

3. When temporary power failure occurs, the train runs and locks the switch. 

4. Closed special line lock special line turnout. 

5. Line new switch lock new open switch open. 

6. Lock the switch during the construction of the special line.