As a side note, usually cables used in lifts/cablecars/cranes/etc. have a 5x (or even in some cases higher) factor of safety, i.e. the cable needs to resist at

As a side note, usually cables used in lifts/cablecars/cranes/etc. have a 5x (or even in some cases higher) factor of safety, i.e. the cable needs to resist at least 5,000 Kg of traction in order to be used for a 1,000 Kg weight. Part of this high factor is because cables wear down during use (and they are usually inspected for all their length every 6-12 months), particularly when relatively high travel speed is used.