20. Checks before declaring equipment locked

20. Checks before declaring equipment locked

Locking is not a simple sequence of actions. It is a sequence of actions followed by verification.

Before declaring that equipment is locked, it is necessary to verify that the operations have been carried out and that they produce the expected effect. This may include:

• visual inspection of isolation devices
• consistency with the operating mode
• checking the installation of padlocks
• the release of accumulated energies
• confirmation of persons exposed
• the presence of labels
• and preparation of a controlled trial if necessary.

If no verification is planned before safety declaration, the system is incomplete.