Application of Loto scheme
This standard applies to, but is not limited to, activities performed on a machine, equipment, process or circuit.
Primary, secondary, stored or separate power sources are locked for service and maintenance. Service and maintenance Definition: repair, preventive maintenance, improvement and installation activities of machines, equipment, processes and wiring. These activities require a machine, device, process, or line, or its parts, to be in a "zero-energy state." Personnel performing these activities must use Lockout tagout in accordance with the protocol. When the Lockout tagout of the machine, equipment, process line cannot be used, an alternative method should be used.
All the stored energy must be controlled to make sure the machine is completely safe.
The following is a list of typical activities to which energy control procedures apply:
Build - Install - Build - Repair - Adjust
Inspection - Commissioning - Assembly - Finding and troubleshooting - Testing
Clean - Remove - maintenance - repair - lubrication
An alternative may be used if:
LOTO is not feasible
The work behavior is routine, repetitive, and integrated with the production process.
Slight modification and adjustment of tools, assembly, opening, parts;
No LOTO alternatives are scheduled for the task;
No task-specific training is provided.
A device with a connected plug for a separate power source may not be Lockout tagout when the plug is disconnected and the authorized person has exclusive control over the cut-off of the power source.