Chapter 8: Ground Ladders Flashcards
Ladder Terminology
parts of a ladder
Fly Section & Bed Section :Tip, Rung, Beam/Rail, (Pulley, Halyard, Anchor), Heel/Butt, Butt Spur, Ladder stops, Lock(dog/pawl), Guides, don’t forget manufactures id, serial number, ladder hooks
-Heat sensors.
Angle of Inclination
Optimum is 75’
5 types of Ladders used by EFRS
Extension ladder 4.3m fresno, 7.3m, 10.6m Roof Ladder 4.3m, 5m Combination Ladder 4m Folding attic Ladder 3m Mechanical ladder 30m
Ladder Deployment
pump
tanker
7.3m ext. ladder
4.3m Roof ladder
3m Attic ladder
Ladder Deployment
Rescue
4m combination Ladder
Ladder Deployment
Ladder
30m mechanical ladder
3m attic
4.3m fresno, 7.3m. 10.6m ext ladders
5m roof ladder
Heat sensors.
(inside beam below 2nd rung from top & below middle rung: darkens @149’C +/- 5’)…
ladder must keep 75% of its strength above 150’c
rule of thumb
3-5 rungs above roof line 75' incline or shoulder height arms length test 1 FF per fly section carry ladder butt end first leg lock or tie off belt when working
7 Operational Hazards
Overhead Electrical lines Uneven surfaces Ice Traffic Areas Structurally unsound Walls Fire Fire Ground Changes
3 types of carry
shoulder
hip
flat shoulder
4 types pf raise
Flat
beam
Extension ladder
roof ladder