Type: Lessons Learned
Publisher: Advanced Mixed Waste Treatment Project, Idaho-AMWTP
Published As: Public
OSHAs definition of "energy source" is, in essence, that an energy source is a source of energy. If an energy source does not have the capability of causing injury to employees, it is not "hazardous" energy within the scope of lockout/tagout. As used in the lockout/tagout standard, an energy source includes the means of transmission of the energy from its true source to the energy isolating device. Therefore, isolating a machine or equipment from an energy source means utilizing an energy isolating device to interrupt the flow of energy from the means of transmission of the energy to the machine or equipment.
Lessons Learned: When analyzing an energy source, one must analyze the energy from the perspective of the task to be performed. An energy source may be deemed non-hazardous for one task and yet that same energy source may be deemed hazardous when performing a different task, sometimes within the same overall work scope. For this reason, it is important that each individual task and the environment that it is to be performed in be considered when identifying hazards.
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