What should you do to verify equipment isolation?

To ensure that equipment is properly isolated, checking that locking devices are secure is essential. This step confirms that all energy sources have been effectively disabled and that the equipment cannot be inadvertently started. Locking devices serve as physical barriers that prevent access to the equipment's controls, and verifying their security is a critical part of the Lockout/Tagout procedure. When the locking devices are confirmed to be in place and secure, it provides assurance that employees are protected from unexpected machine operation during maintenance or repair work.

In contrast, attempting to start the equipment is not a safe verification method, as it could lead to severe injury if the equipment is not properly isolated. Leaving the area does not provide any verification of equipment status and does not ensure the safety of potential users. Informing coworkers of the status is a good practice for communication but does not provide the necessary verification needed to confirm that the equipment is isolated and safe to work on. Therefore, checking the security of locking devices is the only effective method to verify isolation and ensure a safe working environment.