If you are working at height, post anchors provide a convenient point of connection for your personal fall arrest system. Surfaces are permanently mounted with attachment bases. It is possible to connect to three workers to a post. A rotating D-ring makes mobility easier. Horizontal lifelines can be strung between posts. When exposed to a fall, anchors must be inspected and replaced.
Assisting workers in raising, lowering, and retrieving them is done through the use of tripod systems that are equipped with winches or self-retracting lifelines (SRLs). Stabilizing tripods requires three legs that are placed over a vertical entry point.