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Rope Rescue System "safety factor"

Question asked by twade on Aug 15, 2019
Latest reply on Aug 20, 2019 by rfdacm02

Pertaining to rope rescue systems I am looking for this "System safety factor" ratio that I hear about in fire service but can't seem to find any numbers anywhere.  In NFPA 1670 A.3.3.142 states what a safety factor is but no ratio is given.  For example I hear "the safety factor must be 10:1 or 15:1".  Where might I be able to find this information in or outside NFPA?