Once across all personnel will retreat for safety, the load supported by the jackstay (including its own weight) is less than ¼ of the breaking strain of the rope used.
Nje ukuba abasebenzi babengaphesheya bonke baza kurhoxela ukhuseleko, umthwalo oxhaswe yijekhsteyi (kuquka nowayo) ungapphantsi kwe-Ijekhsteyi kwe-Â¼ kwintsontela ethe yasetyenziswa.