A fall arrest block, also known as an inertia reel, is a personal protective equipment (PPE) device that is used to prevent serious injury or death in the event of a fall from height. Fall arrest devices like this only kick in when a fall occurs, locking the lifeline and catching the wearer before they hit the ground.
Fall arrest systems, like fall arrest blocks, should only be used as a last resort when there is no way to easily prevent or eliminate the risk of a fall.
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