Chapter 9: Ropes /Ties & Equipment Hoisting Flashcards
knots that we must know
Bowline Figure 8 Figure 8 retrace Figure 8 on a bite Figure 8 inline
Bends we must know
Ring Bend
Double overhand Bend
Hitches we must know
Clove hitch
Prusik Hitch
Half Hitch
Snake Hitch
1 of 2 Rope Construction Material used by EFRS
Nylon Synthetic Fibers: ggh claw good: good abrasion, good shock loading, high breaking strength, continuous strands low rate of degradation allows for a variety of rope construction will not rot, bad: low acid,bleach, UV resistance, loses 10-15% when wet
you will NOT find natural fibers in EFRS
2 of 2 Rope Construction Material used by EFRS
Polyolefin
good: floats, continuous strands, good acid resistance
Bad: low abrasion and UV resistance, melting point of 60% nylon, poor shock loading
4 types of Rope Construction
Laid
Braided
Briad on Braid /double braided
Kernmantle
Kernmantle Rope
used as life safety rope
low stretch 2kn = <5% elongation
med = 5-10%
high = >10%
Utility Rope on all Major Units
6mm 30m life/guide line (meet for pt)
10mm 20m Drop Bag (coffee Break)
16mm 45m Heavy utility (start cleanup)
Life Safety Rope
Rescue Halls 1, 4,9, 14, 20
& TR @ 3
All Rescues: 2 Rope Bags 1 red 1 blue: 13mm 60m life safety rope Main/Belay
TR: 6: 2 x Main, 2 x Break, 2 x Haul : 13mm 60m LSR.
TR: 2: rope bags w/ 13mm 100m LSR
5 Rope Size & Strengths
6mm : 9.7 kn 8mm : 14 kn 9mm : 16 kn 11.1mm : 27 kn 13mm : 46 kn
Rope Log Book
ID # Manufacture & lot # Date of Purchase Date of Service Rope Diameter and Length Construction Type
Date of use type of use Incident location and Incident # Inspection Date & inspectors name /initials Rope condition and comments date and type of washing date of retirement and level
Webbing
25mm tubular construction, 17.5kn in rescue bage 2 green 1.5m 2 yellow 3.5m 2 blue 4.5m 2 red 6m
orange 6m
5 Characteristics of a good tie
easy to tie easy to untie easily inspected secure once tied will not slip under load Minimum strength loss in rope
Tying Terms
Bight: rope doubled on its self
Loop: rope crosses its self to form a circle
Round Turn: rope wrapped 2 or more times on its self
Parts of a rope
Working end: where the tie takes place
Standing part: part used to acend or decend
Running End: unused rope in bag