SRD Classes: Breaking It All Down
Class 1
Class 2
2 feet
6 feet
Maximum Freefall Distance
✓
✓ ✓ ✓
Overhead Anchorage
Below D-ring Anchorage
Possibility of line contact with Structural Edge
Additional Considerations
Swing Fall The ANSI/ASSE Z359.0-2012 standard says, “swing fall is a pendulum-like motion that occurs during and/or after a vertical fall. A swing fall results when an authorized person begins a fall from a position that is located horizontally away from a fixed anchorage.” Swing falls are typically associated with the use of a self-retracting lanyard, primarily because an SRL can be installed at a height greater than that of a shock absorbing lanyard. If cable is paid out of the de- vice as a result of the user moving away from the device horizontally, a fall (and the subsequent locking of the SRL) will cause the user to ‘swing’ like a pendulum back towards center.
Minimize the possibility of a swing fall by working as directly below the anchorage point as possible.
Right
Wrong!
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