1981 Series definitions.
Free fall:
An uncontrolled, change in elevation at the vertical rate of gravity (g) being 9.8 m/s/s
Free fall arrest:
An uncontrolled change in elevation of not more than 2000mm, at the vertical rate of g, that is arrested by a lanyard assembly – harness – connector, system.
Limited free fall arrest:
An uncontrolled change in elevation of not more than 600mm, at the vertical rate of g, that is arrested by a harness – connector and lanyard assembly or lanyard assembly substitute – connector, system.
Work Positioning:
The harness provides the primary means of suspension via connection to an anchor point. A secondary method of attachment to an anchor that limits any potential free fall, to limited free fall arrest.
Restrained fall:
An uncontrolled change in elevation, at a vertical rate less than g, where no free fall is possible, utilising a harness – lanyard assembly or lanyard assembly substitute – connector, system.
Work Restraint:
No uncontrolled change of elevation is possible, utilising a harness – lanyard assembly or lanyard substitute – connector, system.
Attachment hardware:
Load bearing, normally metallic items, that form part of the load bearing and structural integrity of the harness. Not designed or intended, to be used as an attachment point to connect directly or indirectly to an anchor point.
