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1. Do not exceed the allowable free fall distance or exceed the maximum fall arrest forces as specified by governing
standards of subsystem components.
2. Total fall distance. The sum of the free fall distance and deceleration distance plus a 3 ft (1 m) safety margin.
3. Harness stretch is considered in the 3 ft (1 m) safety margin.
4. The length of D-ring extenders must be added when calculating the minimum fall clearance.
Example: 6 ft (1.8 m) free fall + 3.5 ft (1.0 m) deceleration distance + 3 ft (1 m) safety margin (harness stretch and additional
safety factor) = 12.5 ft (3.8 m) total fall distance.
WARNING!
• Prevent swing falls and impact with objects in or adjacent to the fall path.
• Always remove obstructions below the work area to ensure a clear fall path. Keep work area free from debris,
obstructions, trip hazards, spills or other hazard which could impair the safe operation of the fall protection system.
• DO NOT use the MSA Harness unless a qualified person has inspected the workplace and determined that identified
hazards can neither be eliminated nor exposures to them prevented.
Failure to follow these warnings can result in serious personal injury or death.
3.1.3
Pendulum (Swing) Falls
Minimize swing fall hazards by anchoring directly above the user. Swing impact can cause serious injury. Always minimize
swing falls by working as close to directly below the anchorage point as possible.
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