Title: +038=627.001-##001T_03-Fasadevasksystem NorAcon - International Code of Practice (ICOP).pdf
L.2.6.5.5 The proper functioning of many guided type fall arresters relies not only on the correct anchor line being used (see L.2.6.5.2) and the correct length of connecting element but also on other factors. There is evidence that not all guided type fall arresters will arrest a fall in every potential fall situation. This includes guided type fall arresters that meet recognized standards. An example is where the design of the guided type fall arrester is such that the cam has to be pulled downwards for it to engage with the anchor line, rather than doing so automatically. In this case, if the person is not beneath the guided type fall arrester as he/she falls, the cam is unlikely to engage with the anchor line and the fall is unlikely to be arrested.