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Answer:
》SIGNS, SIGNALS, AND BARRICADES shall be placed so as to provide appropriate warning to all affected personnel, provide appropriate levels of protection from hazards, and shall be visible at all times while work is being performed or while there is potential exposure to the hazard by any person.
If work exposes energized or moving parts that are normally protected, danger signs shall be displayed and barricades erected, as necessary, to warn other personnel in the area.
Explanation:
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