Free-fall distance is the free distance between the anchorage point and some collision point. To determine the required fall distance you must add the appropriate factors, and this will result in the required distance below the working surface.
Since this is an energy absorber standard, this pictogram only appears on lanyards with an shock absorber, so the question is: below 4.90 m can I use equipment with an absorber?
Once again before we start the activities we should perform a risk analysis, starting from where your anchorage point is located, because your fall zone will vary depending on your fall factor, worker’s weight, lanyard length.