Sometimes work must be performed on equipment, pipelines, and machinery that may contain moving parts, pressurized gases or liquids, electrical energy, or other hazards. Contact with any of these may result in injury or death.
Loto means to install a locking device that keeps the switch, valve, or other mechanism from being turned on or opened, then you should put a warning tag on the locked device. The tag indicates DANGER or WARNING with a brief sentence. It has a place to put the date and person`s name who lockedout the equipment so that he or she may be easily found or notified.