Lockout Tagout scope and application

Basic principles of Lockout Tagout:
The energy of the device must be released, and the energy isolation device must be locked or Lockout tag.
Lockout tagout must be implemented when the following activities are involved in the repair or maintenance operation:
The operator must contact some part of his body with the operating part of the machine.
The operator must remove or cross the guard plate or other safety facilities of the machine, which may lead to danger during operation.
Some part of the operator's body must enter the dangerous area during operation of the machine
Unless the Lockout tag provides full protection to the operator, otherwise the energy isolation device must be locked if it can be locked.

Equipment isolation
Run all energy isolation devices to isolate equipment from energy sources.
Ensure all power sources are isolated (both primary and secondary)
Do not power off the device by unplugging the fuse

Use of Lockout tagout device
All energy isolation devices must be locked or Lockout tagged, or both.
Only standard isolation devices can be used and these devices cannot be used for other purposes.
If the energy source cannot be locked directly with a lock, it should be locked with a locking device
When a locking device is used, every employee on the team must lock the locking device.