The overall process of isolating equipment from energy can be planned and executed in such a way as to identify and mitigate hidden risks.
Energy is useful. If controlled correctly it can create value and be put to good use. However, it is, by its very thermodynamic nature, potentially harmful and must be carefully contained within the domain in which it has been designed to remain. If it escapes, for any reason, people can be hurt.
from Safety http://ift.tt/2mJPMH2
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