Title: +038=627.001-##001T_03-Fasadevasksystem NorAcon - International Code of Practice (ICOP).pdf
2.11.2.20 Where anchor lines are rigged some distance apart and failure of one could lead to a large pendulum and subsequently an impact with the structure or natural feature, the use of two anchors for each anchor line is recommended, see Annex F, Figure F.11.2.11.2.21 When anchor lines are tensioned, for example, as they are in horizontal anchor line systems, the increased loads in the system, e.g. at the anchor, anchor line terminations and at other components, should be taken into account. An incorrectly tensioned system can result in loads that are potentially catastrophic. The loads in these systems should be calculated by a competent person before use and any other necessary checks and adjustments should be made to ensure that the system is safe.Rope access technicians and rescue services should be aware that additional anchors2.11.2.22 may be required to facilitate workmate retrieval.