Rigging Flashcards
Duraplex is increasing in popularity when doing what?
Use with handlines and smaller rigging scenarios
Tenex is increasing in popularity when?
When pulling and stringing and climbing and rigging
Heavy load
Synthetic rope must be removed when
Abnormal wear
Powdered fiber between strands
Broke or cut fiber
Variation in the size around a strand
What wire rope is considered to be the strongest
Improved plow steel
What are the limitations of synthetic rope?
Melt if subjected to heat
Damaged by sharp edges or abrasion
What are the basic wire ropes
Mild plow steel wire rope
Plow steel wire rope
Improved plow steel wire rope
What rope do you use when waking around energized conductors
Synthetic rope and slings
Proper care of rope should include
Clean and dry when stored
Hung in neat coils devoid of kinks or twists
Splinters, thorns, burrs, sand, and gravel should be removed at every opportunity
Avoid contact with chemicals
Catalog breaking strength (cbs) is what
The average force in pounds needed to break a rope
What are examples of dynamic loading?
Shock loading
Excessive use
Exposure to high temperatures
Extends period under load
Dynamic loading occurs when
Ropes are subject to severe exposure conditions
What is design factor
A arbitrary number (usually 5 for ropes)
Used for calculating working load limit
Cvs is divided design factor to determine WLL
Working load limit is what
The maximum load that should be applied to a rope
Explain why it helps to begin a splice with a tracer strand
So you know where to start
Variation of a square knot
Granny
Thief
Grief