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Webbing
What are you guys using for webbing? I have about a 10 foot piece tied in a loop with 2 carabiners.
Replies to This Discussion
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Permalink Reply by Jason Brooks on
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What is "life rated webbing"? I have never heard of this ever before. There is 1" tubular, 2' tubular and 1" flat webbing that is most commonly used. All have there uses.
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Permalink Reply by Paul Montpetit on
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Look at the specs and see if it is "approved" for use for rescue.....some of these "webbings" are not...and I for one wouldn't bother carrying it if it wasn't...same thing for carabiners....I like the 15:1 rule..breaking strength should be 10-15 times the intended use.....
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More inportant that steel is the rating for its use....and a locking one is a must....remember never/ever put horizontal pressure on it....the gate will fail...always allow the pressure to be applied on the long axis.....always allow for redundancy....if one thing fails there is a back-up for everything.......
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If you actually break down all the systems that we rig, we are nowhere near a 15:1 rule. 1/2" rope starts at about 9000# MBS, but put a knot in it and you cut it in half. You just took your two person rope and made it a one person rope. The same goes for most of the rest of our riggings. I am all for safety. We all over engineer out systems. We broke down our systems and individual components, we were lucky to end up with a 6:1 overall ratio. This is using all G rated gear.
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Jason CMC rescue rope (12,5mm) 1/2 inch has a rating of 9,891 lbs...the average man (rounded up) 200 lbs...thats 49,455:1....The line does not automatically "lose" 50% when knots are applied provided said knots are tied correctly and are the right knots....Single person...figure of eight on a bight....2 person...double figure of eight....This is the main-line....then you would have your Safety line as well...Any additional personell would go down on a separate line...you tie in to the mainline using butterfly knots and using prussiks.....Thanks....forcing me to go back and think about the tech rescue course a bit.....LOL Paul
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Permalink Reply by ColoradoDave on
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I am going to pick up some more webbing tomorrow i think i might go with the 2"
-dave
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Permalink Reply by Norm Tindell on
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Yep. The rule of thumb is 10:1 on hardware such as carabiners and 15:1 on software such as webbing and rope. And Paul is correct...depending on whether you use the right knot you can maintain your strength as high as 100%.
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Too much?
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Not at all...providing you know how to use it.....(NOT saying that you don't, just making a point)
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OK...but why 2 inch....? Tubular webbing is more than strong enought for anything that you might encounter
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No thats a very good point and I do but its nice to have more so I can quit making small hasty harness. But I will continue to train my but off, to make me the best firefighter I can be. REI is having a good sale this weekend so I had to pick this stuff up.
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I went with 1".
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