The precautions for the safety padlock before locking and tagging mainly include the following points：

1.First check whether the safety padlock itself is in good condition and whether it can be used smoothly. Check whether all the contents to be filled in the checklist are complete and accurate. Only when there is no problem after inspection, can the lock and tag be realized.

2.When locking and tagging, hang the card to be hooked on the lock, and then turn off the main power supply of the device.

3.After locking and tagging, all employees in the work area should be notified through various channels that their equipment has been locked. Without permission and the presence of relevant personnel, no one is allowed to unlock the equipment lock program at will. Only the locked personnel or authorized personnel are qualified to release the equipment lock procedure.

 4.In the process of installation, repair, construction, maintenance, inspection and operation, if the stored goods are dangerous goods or energy is easily released suddenly and cause injury, before these operations, all potentially dangerous energy sources should be isolated and locked and tagged.

5.Before locking and labeling, all operators affected by this isolation, affected equipment and systems should be notified, and corresponding operations should be stopped.

6.Employees operating locks and tags must carefully check related equipment and systems to eliminate and cut off any residual energy, and to ensure that machines, equipment, and lines are in a zero-energy state before starting repairs or maintenance.

7.After the repair or maintenance operation is completed, before the equipment and system are officially resumed, the relevant personnel and number should be thoroughly counted and verified to ensure that all relevant personnel on the site have left the site and left the equipment and system.

8.Relevant records should be made for each labeling and locking, to ensure that the locking and tagging are carried out in accordance with the correct procedures.