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What is the formula for calculating free fall distance?
Free fall means that an object is falling freely with no forces acting upon it except gravity, a defined constant, g = -9.8 m/s 2. The distance the object falls, or height, h, is 1/2 gravity x the square of the time falling. Velocity is defined as gravity x time.

How much harness stretch should be taken into account when calculating free fall distance?
The fall clearance needed to use this system is: Free fall distance = 3,2 meters (10,4 ft) (2 meters (6,5 ft) lanyard + 1,2 meter (4 ft) distance between D-ring and anchor point) Harness stretch = 0,3 meter (1 ft) (or more, depending on the manufacturer)

What is the maximum free fall distance allowed?
OSHA requires that potential free fall distances will never exceed 6 feet (1.8 m) when using personal fall protection. So, careful consideration must be given to the way that a fall arrest system is selected and rigged so that a 6-foot fall distance is not exceeded.

How is the distance of a free falling object determined?
Free fall means that an object is falling freely with no forces acting upon it except gravity, a defined constant, g = -9.8 m/s 2. The distance the object falls, or height, h, is 1/2 gravity x the square of the time falling. Velocity is defined as gravity x time.

MSA Fall Protection: Calculating Total Fall Distance
Total fall distance is defined as the sum of freefall distance (FFD), deceleration distance (DD), harness effects (HEFF), and vertical elongation (VEL). It is also wise to include a safety factor (SF) of at least 2-ft. in the formula. Total fall distance can be calculated using the following formula:

[PDF File]Fall Clearance Calculation Chart
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Required Distance (RD) below the anchorage connection point for work which is to be carried out where there is any risk of falling. 9700606 REV B Nearest obstruction C Safety factor (e.g. 1-½ ft.) (0.46 m) DD Deceleration Distance (e.g. 4 ft.) (1.2 m) RD Required fall clearance distance (e.g. 17-½ ft. (5.3 m) using typical 6 ft. (1.8 m) Lanyard

[PDF File]Calculating Fall Distance - The Source
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The Formula Lanyard length+ Deceleration distance + Worker’s height + Safety margin= Fall Distance Using the recommended values, the formula should look something like this: 6 feet + 3.5 feet + 6 feet+ 3 feet = 18.5 feet. This number, 18.5 feet, is the least distance allowable from the anchorage point to the lower walking or working

[PDF File]OSHA Training Toolbox Talk: Figuring Total - Google Search
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for this toolbox talk for information on calculating free fall distance). However, there are a few other factors that play into how far you could ultimately fall; this is usually referred to as the total fall distance. And total fall clearance distance calculations must consider these other factors, in addition to your free-fall distance.

[PDF File]Fall Arrest Clearance Calculations Made Easy
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eliminate the need to determine Free Fall. Deceleration Distance (DD) This is the distance a worker travels while the system applies force to arrest the fall. Many parts of the Fall Arrest System can be involved in dissipating the energy generated during a fall, including deployment of Personal Energy Absorbers (PEAs), braking mechanisms on Self-

[PDF File]Fall Clearance Calculation Using an SRL - Gorbel
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*All added up = Total Fall Distance (TFD) NOTE: Total Fall Distance (TFD) must be less than the Clearance Required (CR) (Total Fall Distance < Clearance Required) • OSHA requires Free Fall Distance to be less than 24”, but when using self-retracting lanyard (SRL), the typical activation distance is ~12”. OSHA Regulation: FFD =

Free fall distance formula