Electrical, mechanical and hydraulic lockout tagout software

The recording process includes different stages, the order and execution of which depend on the specifics of the intervention:

  The separation where the power is cut off by a circuit breaker
  Locking in open position with padlocks and tags
  Identification of the machine on which we can work safely
  Verification of absence of voltage
  Earthing and short circuiting if necessary


Lockout tagout is said to be in one step if the Lockout Load carries out all these steps. It is said to be in two stages if it is the Works Manager who carries out the signaling and verification stages.

The lockout tagout removal phases are those of lockout tagout in reverse order.

These same principles apply for mechanical and hydraulic lockouts tagouts.

The recording process involves different types of actors whose prerogatives and authorizations are issued by the company to which they belong and according to NCF 18 510:

  Preparer/Order giver
  Lockout tagout Officer
  Operating Officer
  Works Manager/Stakeholder


The documentation must be backed by a rigorous process, clearly formalized, and controlled by all stakeholders.

Depending on the volume of planned interventions and the hourly cost of equipment shutdown, this process constitutes a real economic challenge and requires optimization, in particular through a dedicated software solution.