The principle of the padlock
All padlocks have a principle: one lock, one key. In the course of the operation, an individual's lock must be removed by his or her own person. If the person cannot remove his or her own lock under certain circumstances, then the person's superior manager must: try to contact the person to remove his or her own lock; If the person cannot remove the lock, it must be removed by another authorized person after the approval of the manager at the next higher level. The manager at the next higher level shall be responsible for removing the lock. If the padlock is removed from the previous shift, the previous shift must explain the removal of the lock to the next shift and make a record to remind them of the start-up of the equipment.
Lock procedures to continue to improve and improve, generally every year to review the control procedures: lock procedures formulated or updated after on-site verification. In production and maintenance operations, if it is found that the implemented control procedures cannot effectively control risks, the production and maintenance personnel shall jointly evaluate, verify and modify the control procedures;