Ropes, Knots and Rigging

Rescue Refresher Session Reference: 1 Topic: Ropes, Knots, and Rigging Time Required: Three Hours Materials: 25 foot length of rope for each student webbing, harnesses, carabiners, figure eights ascenders, pulleys, prussic cords...


Rescue Refresher

Session Reference: 1

Topic: Ropes, Knots, and Rigging

Time Required: Three Hours

Materials: 25 foot length of rope for each student webbing, harnesses, carabiners, figure eights ascenders, pulleys, prussic cords, slings blocks, rope

References:

   • Rescue Technician, Mosby, Sessions 2-5

   • Fire Service Rescue, Sixth Edition, IFSTA

PREPARATION

Motivation:

Objective (SPO): 1-1

The student will demonstrate a basic understanding of rope and rope hardware and software; tying of basic knots, and the use of various

rope accessories to construct mechanical advantage systems through participation in class discussions and practical activities.

Overview:

Ropes, Knots, and Rigging

   • Demonstrate knowledge of rope types and strengths

   • Demonstrate tying basic knots

   • Demonstrate knowledge of rope software and hardware

   • Demonstrate knowledge of anchoring points and use

   • Demonstrate reeving blocks

   • Demonstrate constructing mechanical advantage systems

SPO 1-1 The student will demonstrate a basic understanding of rope and rope hardware and software; tying of basic knots, and the use of various rope accessories to construct mechanical advantage systems through participation in class discussions and practical activities.

EO 1-1-1 Demonstrate a knowledge of rope used in rescue and the strength of the various sizes of lifeline.

EO 1-1-2 Demonstrate the tying of basic knots used in rescue.

EO 1-1-3 Demonstrate a knowledge of software and hardware used with rope in rescue.

EO 1-1-4 Demonstrate a knowledge of anchoring points and the various means of securing to them.

EO 1-1-5 Demonstrate reeving various types of blocks used in rescue to create mechanical advantage systems.

EO 1-1-6 Demonstrate constructing mechanical advantage systems such as the Z-rig and Piggyback Z-rig.

I . Rope Used In Rescue (1-1-1)

A. Lifeline Rope

  1. Static kernmantle

  2. Dynamic kernmantle

B. Utility rope

  1. Synthetic fiber

      a. Nylon

      b. Polypropylene

      c. Polyethylene

      d. Kevlar

  2. Natural fiber

      a. Manila

      b. Sisal

      c. Cotton

C. Rope strength for lifeline rope

  1. Tensile or breaking strength

      a. 7/16-inch - 6,000 lbs.

      b. 1/2-inch - 9,000 lbs.

      c. 5/8-in. - 13,000 lbs.

  2. Working strength

      a. Tensile strength divided by 15

  3. NFPA rope classification

      a. Class One - one person life safety rope with greater than 300 lbs. working strength

      b. Class Two - two person life safety rope with greater than 600 lbs. working strength

      c. Life safety ropes must have internal tracer tape indicating compliance

 

II. Basic Rescue Knots (1-1-2)

A. Overhand Knot

  1. Used as safety knot with other knots

  2. Review how tied while students observe

B. Water Knot

  1. Used to join two ends of webbing together

  2. Review how tied while students observe

C. Bowline

  1. Used as rescue knot or for hoisting tools

  2. Review how tied while students observe

D. Clove Hitch

  1. Used for securing a rope to an object

  2. Review how tied while students observe

      a. Clove hitch around object

      b. Clove hitch over object

      c. Split clove hitch

E. Figure Eight Knots

  1. Used as stopper knot at end of rope (figure eight), form a fixed loop around an object (figure eight

      on a bight or figure eight reweave), or join two ropes together (figure eight bend)

  2. Review how tied while students observe

      a. Figure eight

      b. Figure eight on a bight

      c. Figure eight reweave

      d. Figure eight bend

 

III. Associated Software and Hardware ( 1 - 1 - 3 )

A. Webbing

  1. Flat or tubular

  2. Used in place of or with rope

  3. Strength

      a. 1-inch - 4,500 lbs. tensile strength

      b. 2-inch - 6,000 lbs. tensile strength

B. Harnesses

  1. Constructed of sewn webbing

  2. Worn by rescuers during certain rescues

  3. Types

      a. NFPA/ANSI Class I - seat-style for emergency escape

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