Rope Rescue Flashcards
(28 cards)
1
Q
SSSF
A
- Static System Safety Factor - refers to the system safety factor when all movement of the load has stopped, in other words “Static State”.
- DCFD rigs to a 10:1 SSSF whenever it is reasonably achievable.
2
Q
Rope
A
1/2” Static Kernmantle Rope rated for 9,000 lbs or 40kN
3
Q
Bowline Knot
A
- Maintains 67% of rating for 1/2” Kernmantle rope 6,000 lbs
- Used as a connection knot at end of line or knot to tie around an object; Double long-tail used as our main connection point for all mirrored systems.
4
Q
Figure 8 Knot
A
- Maintains 77% of rating for 1/2” Kernmantle Rope when tied on a bight (6,950 lbs)
- Used as a stopper knot at end of line or tied on a bight as a connection point.
5
Q
Alpine Butterfly Knot
A
- Maintains 75% of rating for 1/2” Kernmantle Rope (6,750 lbs)
- Used as a mid-line knot to form a connection loop to pull in any direction; or to isolate a damaged section of rope.
6
Q
Munter Hitch
A
- Used as a friction device for belay or rappel (not in rescue)
7
Q
Handcuff Knot
A
- Used to construct 2 cinching loops to be placed around wrist/arms for hoisting or pulling.
8
Q
Clove Hitch
A
- Used to make a connection around an object by using overlapping round turns that create a friction hitch.
9
Q
Tensionless Hitch
A
- Maintains 100% rope strength when tired correctly
- Used as high-strength tie-off around an anchor with a diameter at least 8X the diameter of the rope being used. (In our case 1/2” rope means 4” object)
10
Q
Webbing
A
- 1” tubular webbing with a MBS of 4000 lbs or 18kN
- Often doubled or tripled when used in anchor building to allow for maintaining a 10:1 safety factor.
11
Q
Water Bend (Overhand Bend)
A
- Maintains 64% strength of 1” tubular webbing (2,560 lbs)
- Used to attach 2 pieces of webbing of equal size together; most commonly used to construct a fixed loop of webbing in anchor building.
- Configurations such as “Wrap 3 / Pull 2” show breaking strengths of 9,000 lbs
12
Q
Cord
A
- Used for rigging, anchoring, and load capturing.
- 8mm cord most often used for Prussik Loops.
- MBS of 8mm cord is 3,500 lbs
- MBS of pre-sewn Prussik is 4,500 lbs
13
Q
Double Fisherman’s Bend
A
- Maintains 68% of rating
- Used to attach 2 rope of equal diameter together
- Most commonly used with 8mm cord to construct a Prussik
14
Q
CMC Anchor Strap
A
- Approximately 3’ to 7’ adjustable length
- Basket: 70kN
- Straight: 27kN
- Choker: 30kN
15
Q
CMC Pro-Series Aluminum Carabiner
A
- MBS along long axis 44kN
- NFPA 1983 says rating of 40kN or greater is considered “General Use”
16
Q
Technical Use Carabiner
A
- Carabiner rated for at least 27kN
- Used for “Personal Use” only
17
Q
Rock Exotica Single/Double Sheave Pulley
A
- Minimum Breaking Strength 36kN
- Swivel Head
- Push Button side plates to allow for opening of pulley
18
Q
Petzl ASAP & Sorber
A
- ASAP Mobile Fall Arrester - Used as a (self) belay device when repelling utilizing Petzl ID
- ASAP Sorber - Energy absorber with zippered pouch for abrasion protection and easy inspection.
19
Q
Petzl ID
A
- Can be used as a rope access descent device and also as a belay device.
- Multi-function handle: Transport, Work Position, Descent, Panic Brake, and Belaying
- Lowers heavy loads up to 272kg (598.4lbs or 2.66kN)
20
Q
CMC Multi-Purpose Device (MPD)
A
- Serves as a ratcheting pulley, belay device, and descent control.
- MBS of 44kN with 1/2” Rope
- At No point should the RUNNING END of the rope have less than a 90 degree angle to the load end of rope.
21
Q
Aztek Kit
A
- Contains a set of Double Sheave Pulleys with 50’ of 8mm accessory cord with integrated 6mm ratchet prusiks which form a 4:1 or 5:1 Mechanical Advantage.
- Pulleys: 36kN
- Rope/Cord: 19kN
- Prusik: 12.9kN
22
Q
CMC Response Harness
A
- NFPA 1983 Class III Harness & ANSI Z359.11
- Rear waist attachment shall only be used for travel restraint
23
Q
CMC Pro Pocket
A
Contains
- 4 Carabiners
- 1 Single Pulley
- 1 - 12’ and/or 1 - 20’ webbing
- 2 Short and 2 Medium Prusiks
24
Q
CMC Titanium Rescue Litter
A
- Patient Tie in System w/ Pelvic Harness & Bridle
- Weight: 13 lbs
- Load rating: 11kN
- Durathene Netting
25
DC Bridle
Consists of:
- 12mm Delta Tri-Link: Serves as connection point, made of galvanized steel with a WLL of 10.8 kN
- Adjustable Head: 9’ of 1/2” rope attached to litter with 2 triple-wrapped prusiks and attached to Delta Tri-Link with Figure 8 on a bight
- Adjustable Foot: Aztek Kit (Set of 4s), Orange block attached to the tri-link & orange Prussik pinned to block.
- Etrier: 3’ of 1” tubular webbing sewn into 4 steps for easy vertical movement
- Always orient gates down and towards the feet
- Rescuers attachment is with 2 short Prusiks above double long-tail bowline to Aztek Kit
26
Arizona Vortex
- Portable artificial high directional (AHD)
- 2 piece head
- 7 Outside Legs, 3 Inside legs, leg pins, Raptor & Flat Feet Sets, Hobbling straps, head set, & Head Set Pins
- Max 3 Outer Leg sections on any leg
- Pin Strength: 3/8” Leg Pins 18,000 lbs (80kN); 1/2” Head Pins 32,000 lbs (142kN)
- All guy lines should be > or = to 30 degrees deflected from axis of the legs
27
Spec Pak
Weight: 15 lbs
- 310 lb Capacity
- Class 3 Lifting Harness, used in conjunction with cervical collar
- “WLCH” Waist, legs, chest, head; All straps 2 finger tight
- Lower chin strap not used for vertical lifts
- Patient in SPEC PAK should not be suspended in a vertical position from head D-ring for >7 minutes, at risk for suspension syndrome.
28
Lifting Spec Pak
- D-ring located at the head on the SPEC PAK is NOT designed for vertical rescues by itself
- Do NOT suspend anyone on a D-ring for more than 7 minutes
- Use 1 of the 2 bridle systems for any vertical operations
