Practice 000.653.3315
Date 01May2009
Attachment 03 Page 1 of 1
HAZARDOUS ENERGY CONTROL
EXAMPLES OF GROUP LOCKOUT/TAGOUT METHODS
The group lockout/tagout methods described here require each authorized worker to be in control of potentially hazardous energy release during their servicing/maintenance work assignments. When many energy sources are involved or the work assignment extends over more than 1 shift, an alternative means of control must be used to ensure worker safety. The following examples are not the only means that can be used for this control; however, the alternative means used must be equal in control to personal locks.
1.0AUTHORIZED WORKER LOCKS
Each authorized worker places an Authorized Worker Danger Tag on each energy-isolating device and removes it upon departure from that assignment. Each authorized worker verifies or observes the deenergization of the equipment.
2.0LOCKBOXES
A lock and tag are placed on each energy isolation device after deenergization. The keys are then placed in a lockbox. Each authorized worker assigned to the job attaches his/her authorized worker lock to the lockbox. As a member of a group, each assigned authorized worker verifies that all hazardous energy has been made safe. The locks/tags cannot be removed or the energy-isolating device turned on until all of the authorized worker locks are removed.
3.0Master LOCKBOX
After each energy-isolating device is locked/tagged out and the keys placed in the master lockbox, a representative from each service/maintenance group places an authorized worker lock on the master lockbox. Then each representative places their key into a satellite lockbox to which each authorized worker in the group attaches their own authorized worker lock. As a member of the group, each assigned authorized worker verifies that all hazardous energy has been rendered safe. After the service/maintenance function of the group is completed and the locks of the authorized workers have been removed, the representative can remove his/her lock from the master lockbox.
Health, Safety, and Environmental