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  2. Rope access - Wikipedia

    en.wikipedia.org/wiki/Rope_access

    Rope access technicians descend, ascend, and traverse ropes for access and work while suspended by their harnesses. Sometimes a work seat may be used. Sometimes a work seat may be used. The support of the rope is intended to eliminate the likelihood of a fall altogether, but a backup fall arrest system ( Personal protective equipment ) is used ...

  3. Z-drag - Wikipedia

    en.wikipedia.org/wiki/Z-drag

    A Z-Drag or Z-Rig is an arrangement of lines and pulleys, effectively forming a block and tackle, that is commonly used in rescue situations. [1] The basic arrangement results in pulling the hauling end 3 times the distance the load is moved, providing a theoretical mechanical advantage of three to one .

  4. Radium release hitch - Wikipedia

    en.wikipedia.org/wiki/Radium_Release_Hitch

    A radium release hitch is a load-releasing hitch using 3:1 mechanical advantage which is used in a two-rope technical rescue system. [1] The Radium Release Hitch allows a load to be transferred from one rope to another and is commonly rigged into the belay line prior to the operation of a two-rope technical rescue system.

  5. Rope rescue - Wikipedia

    en.wikipedia.org/wiki/Rope_rescue

    Rope rescue is a subset of technical rescue that involves the use of rope, be it steel or cable rope, or more commonly used nylon, polyester, or other type of rope. Kernmantle (kern = core and mantle = sheath) rope as it is called, is available in various types: dynamic (stretches to absorb the shock of a falling lead climber or rescue ...

  6. Tensionless hitch - Wikipedia

    en.wikipedia.org/wiki/Tensionless_hitch

    A Tensionless hitch is an anchor knot used for rappelling or rope rescue. Unlike most knots, the tensionless hitch retains a 100% efficiency rating, [ 3 ] meaning the strength of the knot is equal to the strength of the rope; it is not a significant stress riser .

  7. Single-rope technique - Wikipedia

    en.wikipedia.org/wiki/Single-rope_technique

    Single-rope technique (SRT) is a set of methods used to descend and ascend on the same single rope. Single-rope technique is used in caving , potholing , rock climbing , canyoning , roped access for building maintenance and by arborists for tree climbing , although to avoid confusion in the tree climbing community, many have taken to calling it ...

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