What must be done to controls that are deactivated during work on equipment or circuits?

Tagging controls that are deactivated during work on equipment or circuits is crucial for ensuring safety and proper communication among workers. This practice helps to clearly identify which equipment or circuits are under maintenance, thereby preventing accidental reactivation or interference by other personnel who may not be aware that work is taking place.

By tagging the deactivated controls, you provide a visible reminder of the work being conducted, which is essential in environments where multiple workers may be present. It enhances the safety protocols in place, ensuring that everyone is informed about the current status of the equipment and prevents potential hazards associated with unexpected energization.

The other approaches, while they may seem practical in certain contexts, do not provide the same level of clarity and communication as tagging. Covering with plastic may protect the controls but does not indicate that maintenance is occurring. Removing controls entirely could lead to confusion or accidents if workers are unaware that the controls are no longer present. Monitoring constantly, while useful in specific scenarios, does not address the fundamental need for clear and visible communication to indicate when work is being performed, making tagging the most effective strategy in this case.