Posted On: June 27, 2024

Understanding Personal Fall Arrest Systems (PFAS)

Introduction

In industries such as construction and maintenance, working at heights is common but dangerous due to the risk of falls. Falls are a leading cause of injuries and deaths in workplaces across the U.S. In 2020, there were 805 deaths and nearly 257,000 injuries from falls, slips, and trips reported by the U.S. Bureau of Labor Statistics.

To protect workers, employers must comply with OSHA regulations. These regulations require safety measures like guardrails and Personal Fall Arrest Systems (PFAS) for elevated work areas. Following these rules helps prevent falls and keeps workplaces safer.

What is the Personal Fall Arrest System?

A Personal Fall Arrest System is a gear designed to stop a worker from hitting the ground if they fall. It consists of three main components:

• Full Body Harness: A full-body harness is needed for a Personal Fall Arrest System (PFAS), designed to evenly distribute the force of a fall across the thighs and buttocks, reducing the risk of serious internal injuries like spleen or pancreas damage. Unlike safety belts (waist belts) used mainly to position workers, full-body harnesses are mandatory in construction and other industries for fall prevention. A full-body harness has adjustable points and padding for comfort, with a dorsal D-ring positioned between the shoulder blades where connectors attach to keep workers safe at heights.
• Connector: This component connects the harness to the anchorage point. It can be a lanyard or a self-retracting lifeline (SRL). Lanyards may include shock absorbers to reduce fall impact, while Self-retracting lifelines (SRLs) extend and retract as workers move, giving them more freedom of movement and better protection from falls.
• Anchorage: The anchorage is where the fall arrest system securely attaches. According to OSHA regulations, it must be capable of supporting a minimum of 5,000 pounds per attached worker. This can include beams or specially designed anchor points made for this purpose.

How Does the PFAS Work?

• Fall Activation: When a worker slips or falls, a Personal Fall Arrest System (PFAS) activates immediately. The connecting device such as a lanyard or a self-retracting lifeline in the PFAS, quickly locks up to stop the fall. This immediate action stops any additional movement, preventing the worker from hitting the ground or falling farther.
• Impact Reduction: When the fall is arrested, a shock absorber in the system begins to work. It acts like a cushion, absorbing the force of the fall and distributing it to minimize impact on the worker’s body.
• Post-Fall Safety: Once the fall is stopped, the worker remains safely suspended. They can either try to rescue themselves if possible or wait for trained rescuers to come and safely bring them down. The system keeps the worker secure until help arrives.

Maintenance and Inspections for Personal Fall Arrest Systems (PFAS)

• Inspection Schedule: Inspect PFAS components before each use and regularly. These checks help identify and fix wear and damage early, keeping you safe and meeting regulations. Regular inspections also contribute to the longevity of the equipment.
• Replacement of Components: Replace any parts that are worn out or damaged as soon as possible. This ensures the equipment operates safely and effectively, minimizing the risk of accidents or failures during use.

Conclusion

Across various industries, falls are a serious hazard due to working at heights. Employers must prioritize the implementation of safety measures, such as Personal Fall Arrest Systems (PFAS), to safeguard workers from injuries and fatalities. By taking proactive steps, employers not only fulfill their duty to protect their employees but also reduce the risk of OSHA citations.

Written by: Muntaha Islam