What does the term "lockout" refer to in LOTO procedures?

In LOTO procedures, the term "lockout" specifically refers to the practice of securing equipment by using a padlock or similar device to prevent the operation of machinery while maintenance or servicing is being performed. This is an essential safety measure designed to ensure that the equipment cannot be accidentally energized or started up by unauthorized personnel. By physically locking the equipment, workers can safely perform their tasks without the risk of an unexpected release of hazardous energy, which could lead to serious injuries or fatalities.

The concept of lockout emphasizes the need for a physical barrier, which is critical in creating a safe work environment during maintenance activities. It reinforces the responsibility of those who will be working on the equipment to ensure that they are the only ones with access to the means that could potentially energize the equipment.