Term
| What is 4.5 kN in pounds? |
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Definition
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Term
| What is 8.9 kN in pounds? |
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Definition
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Term
| What is a System Safety Factor? |
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Definition
| Is the minimum breaking strength of a piece of equipment divided by the maximum force expected to be placed on the piece. Expressed as a ratio. System:Load on system |
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Term
| What is the Static System Safety Factor? |
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Definition
| The safety factor of the rescue system when all the components are considered. |
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Term
| What is the Dynamic System Safety Factor? |
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Definition
| The load on a rescue system remains static. This is a system that moves and has potential for uncontrolled shock loading. |
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Term
| Describe the Laid Rope Construction. |
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Definition
| Three strand twisted. Load bearing fibers are exposed to the surface. |
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Term
| Describe Kernmantle Rope Construction. |
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Definition
| Ropes with a core (kern) and a sheath (mantle). Core is the primary load bearing part of the rope. The sheath holds the core together and protects the rope. |
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Term
| Describe Double-Braid Rope Construction. |
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Definition
| One hollow braided rope inside of another. The sheath allows for good handling but not resistant to abrasion. |
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Term
| Describe Block and Creel Rope Construction. |
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Definition
| Fibers run the entire length of the rope without splices. Higher quality of rope. NFPA 1983 Section 4-1.4 specifies block and creel construction for life safety ropes. |
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Term
| What is tenstile strength? |
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Definition
| The amount of force the rope will hold before it breaks. |
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Term
| What standard to rope manufacturers use to measure tenstile strength? |
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Definition
| Federal Test Standard 191A, Method 6016. |
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