Most industry standards approximate this at 1 foot, but it can sometimes vary. The D - Ring Shift is the distance a D-Ring will move in the event of a fall. This may require some extra measurements but can potentially give a more precise measurement. The above formula is specifically designed to account for a set up where the connecting D - Ring Carabiner on a harness is located below the anchor being used. Note: To See A Diagram On This Method From OSHA, Click Here OSHAвЂ™s guidelines say that this should be at least 2 feet, but industry standards are often calling for at least 3 feet these days. The вЂњSafety FactorвЂќ is the distance from the workerвЂ™s feet to the ground or lower level. It should be noted that this formula may be slightly less precise than the alternate formula that we will present to you next. This formula requires that you know the height of the worker. OSHA dictates that Deceleration Distance must be 3.5 feet or less. The Deceleration Length, or Deceleration Distance is the length that a lanyard will stretch in a fall arrest scenario. The formula above is designed to Calculate the Total Fall Distance that a PFAS will allow. This number needs to be higher than the Total Fall Distance that a Personal Fall Arrest System will allow for the PFAS to pass. The Total Fall Clearance Distance is the minimum distance required to ensure that if a worker was to fall that they would not make contact with the ground or next level beneath them. Remember that you will need to determine the TFD before the decision is made that the PFAS is appropriate for the job. We are going to present you with two different ways to figure out a Total Fall Distance that will lead to similar results. You will need to know the Total Fall Distance on a job to meet OSHAвЂ™s standards for Fall Distance Clearance regarding a PFAS (Personal Fall Arrest System). When working with Fall Protection Equipment, there are a few different ways that you can calculate a Total Fall Distance.

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