Title: +038=627.001-##001T_03-Fasadevasksystem NorAcon - International Code of Practice (ICOP).pdf
L.2.6.5.6 The situation described in L.2.6.5.5 can arise when the connecting element is longer than that used during type testing and certification of the guided type fall arrester or if the fall is not a free fall, e.g. when a body snags on the structure during the fall or during a sliding fall.L.2.6.5.7 Users should be aware of the potential danger of some guided type fall arresters where the cam is open, i.e. not locked on to the anchor line, when the cam arm is in the horizontal position. A backwards or sometimes sideways fall on a tensioned anchor line or rigid rail can cause a horizontal load to be applied to the cam, keeping it open long enough not to arrest the fall. There have been numerous fatalities caused in this way. These occurred mainly when using rigid rail systems.