Final answer:
If a worker on a scaffold can fall more than 10 feet, they must be protected by guardrails and/or personal fall arrest systems (PFAS) as per OSHA regulations.
Step-by-step explanation:
If a worker on a scaffold can fall more than 10 feet, they must be protected by guardrails and/or personal fall arrest systems (PFAS). The type of fall protection required will depend upon the specific situation and regulations set by the Occupational Safety and Health Administration (OSHA).
Guardrails are physical barriers that prevent workers from falling over the edge of a scaffold. They typically consist of a top rail, mid rail, and toe board. Guardrails must be able to support a certain amount of force to ensure worker safety. Personal fall arrest systems (PFAS) are individual devices designed to stop a fall before the worker hits a lower level. PFAS typically include a full-body harness, a lanyard, and an anchor point. These systems help to limit the forces applied to a worker during a fall.
Both guardrails and PFAS are important for preventing falls and protecting workers on scaffolds. The specific fall protection required will depend on factors such as the height of the scaffold and the nature of the work being performed.