Machine safety guards are hazard controls against machine hazards. Machine-related hazards can appear during machine installation, operation, and maintenance. Machine safety guards are designed to prevent human injury and death as well as equipment damages from these hazards.
Ideally, machine safety guards should be able to eliminate potential hazards from the machine. Otherwise, another hazard control method has to be applied to reduce the hazard level to an acceptable level. The selection of hazard control methods should always be referred to as hazard control hierarchy.
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