Title: +038=627.001-##001T_03-Fasadevasksystem NorAcon - International Code of Practice (ICOP).pdf
2.7.2.7 Low-stretch kernmantel ropes are used almost universally for both the working line and the safety line. However, these ropes are not designed to sustain major dynamic loads, and should never be used in situations where a fall greater than fall factor one could be sustained. For more information on fall factors, fall distances and associated risks, see Part 3, Annex Q. On very long drops, the use of ropes of even lower elongation might be appropriate but, as these have minimal energy absorption, the user would need to incorporate an energy absorber in the back-up system.2.7.2.8 In situations where the possibility of a substantial dynamic load exists, a dynamic rope should be used. Within the International Mountaineering and Climbing Federation (UIAA) Standards and the European Standards (ENs), there are three categories of dynamic rope: single, half and twin. For rope access, the use of 'single' rope with a nominal diameter of 11 mm is recommended.