Title: +038=627.001-##001T_03-Fasadevasksystem NorAcon - International Code of Practice (ICOP).pdf
2.11.1.3 The principle of double protection also applies to the attachment of rope access technicians via their anchor line devices to the working line and safety line and to any anchors by their anchor lanyards. For example, descending devices and back-up devices should be fixed to the rope access technician's harness with separate connectors, in accordance with the information supplied by the manufacturer. (It is not necessary to wear two harnesses).Rope access technicians normally descend the working line by means of the descending 2.11.1.4 device, with the back-up device attached to the safety line. During ascent, ascending devices are attached to the working line, with the back-up device attached to the safety line. During both ascent and descent, the back-up device should be positioned so that the distance of any potential fall and its consequences are minimized. The system can be modified to become a top rope protection, where particular supervision or care of the rope access technician is required.