What Is the Difference Between Fall Prevention, Restraint and Arrest?
Once the hazards are identified, your team can implement proper mitigation strategies and provide workers with critical personal protective equipment (PPE) to keep your workers safe when working at heights. For more information on Hazard Assessments please visit, maltadynamics.com.
After a good hazard, analysis you’ll find your plan for fall protection on the jobsite. Fall protection isn’t all harnesses and lanyards. Sometimes you can provide an environment where falling isn’t a possibility. A company can use passive fall restraint. They can also eliminate the hazard completely. If those two options cannot be accomplished, then move on to active fall restraint which does include a harness lanyard and other components of a PFAS. If those are not feasible, moving to fall arrest is the last and only at the last resort should administrative control be used. This would be controlled by access zones or a safety monitor. Let’s look at examples of each of these types of Fall Protection.
Eliminating the fall hazard is exactly what it sounds like. If there is a piece of machinery at heights, can it be disassembled and brought to ground level? Ask yourself if it is absolutely necessary to perform this task at heights.
If the task is necessary and you cannot eliminate the hazard completely, the next step is to work in passive fall restraint. Passive fall restraint would have a worker in an area where a fall could not occur because the fall hazard is guarded by permanent or a temporary structure tested to the Occupational Safety and Health Administration (OSHA) standards.
One example is installing a fall protection guardrail with top board, mid board and toeboard for protection of a fall hazard. If the task is necessary and you cannot remove the hazard or guard yourself from the hazard in a passive way, then you move to active fall restraint.
An example of active fall restraint will be working in an aerial lift while remaining in the man basket while performing the work. Another example would be wearing a non-shock absorbing lanyard that is shorter than the distance to your fall hazard. When wearing your personal fall arrest system, your hazard may be 6 feet away if you’re using a harness with an adjustable lanyard. You need to adjust your lanyard to shorter than the 6 feet hazard you are working in active fall restraint to remove yourself from the ability to fall..
If the task is necessary, you cannot remove the hazard, you cannot guard yourself in passive or active fall restraint, then you will move to fall arrest. Fall arrest utilizes all components of a personal fall arrest system including anchorage, bodywear, connector and deceleration device. Every component in this system works together to arrest a fall. Each of these components will have been tested, verified and inspected to work together to arrest the fall. Fall clearance should be calculated, and the correct anchorage and deceleration device should be utilized for each hazard.
The last resort for safely working at heights is controlled access to the zones or administrative control. An example of a controlled access zone would be a flat roof with colorful flags to regulation height that serve as a barrier and a visual sign for the worker to not pass. There are standards that you must abide by when setting this warning line. Another is one dedicated employee as a safety monitor to ensure that the control access zone is respected by all employees on the jobsite. This type of fall protection is only authorized when all other methods of fall protection are unable to be reasonably performed.
The main benefit of working in fall restraint over fall arrest is that the worker doesn’t fall. When working with the hierarchy of fall protection it’s important to eliminate as many steps as possible. If eliminating the hazard is not an option, then working in fall restraint is the next safest practice.
The Hierarchy of Fall Protection
On any jobsite, there are times when you can eliminate fall hazards, and others when you will need to put protective measures in place because the site cannot reduce or remove the chances of a fall. A hierarchy of fall protection is an order of control to eliminate and reduce the risk of a fall hazard.
A jobsite should implement the first step of the fall protection hierarchy whenever possible. Consider steps two through five if the previous systems are not feasible.
1. Fall Hazard Elimination
The best solution for protecting workers against fall hazards is through elimination. You can accomplish this in several ways, such as modifying the work to occur at ground height or putting a scaffold in place that protects the edge.
Before purchasing equipment or systems, managers of all jobsites should also apply the elimination hierarchy to any hazard. While these solutions may not be the most cost effective, removing all fall hazards means there is no risk of falling, which creates a safer environment for everyone.
2. Passive Fall Restraint
The second most effective solution to protect workers against falls is a collective remedy such as implementing guardrails or barriers. Collective solutions do not require users to perform actions such as wearing a harness or securing a lanyard to an anchor point, which leaves less room for human error. Some additional examples of these passive systems include:
- Platform systems
With a passive fall restraint system, workers can undergo minimal training before starting work. While a rescue plan is not a requirement for this type of system, having a program in place can provide additional protection for workers.
3. Active Fall Restraint
If a jobsite cannot implement the elimination or collective fall restraint system, it can use an active fall restraint system. Active fall restraint involves using personal fall arrest equipment such as a restraint lanyard and full-body harness to restrict a worker’s movement so they cannot travel to the hazard.
In an active fall restraint system, all workers must undergo Authorized Person training before starting work at a jobsite. An active fall restraint system also requires work sites to have a written rescue plan to help workers as quickly as possible if a fall occurs.
4. Fall Arrest
When steps one through three of the fall hierarchy systems are not accessible, a jobsite may consider a fall arrest solution. A fall arrest system uses the same protective equipment as an active fall restraint system, such as protective netting. However, the personal fall arrest system does not engage until after a fall occurs. It slows the worker’s fall to bring them to a safe stop.
A fall arrest system is often the least beneficial option because:
- A fall must occur for the system to activate, which leaves room for equipment failure and injury.
- An employee can still obtain an injury from hitting a structure or using improper equipment as their gear works to slow their fall.
- The jobsite must have all employees undergo Authorized Person training and have a written rescue plan to help alleviate suspension trauma and mitigate further risk.
5. Controlled Access Zones
Controlled access zones are the most complex of all hierarchy levels and require professional engineers to install a system to protect workers against fall hazards in industries such as edge masonry and tilt-up construction. In this system, workers do not have restrictive equipment and use marked areas and training to create safe environments for individuals performing jobs at various heights.
Learn more about how to use hazard assessments to identify and reduce fall hazards.
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