When is a nick in a rope too much?

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NH
I just gaffed my new rope today.(Dang it!) It did not look good to me so I cut off the first 12 feet(the end with the splice,Dang it Again!!!)That leads me to the question. Is there a standard when it comes to safety?
 
Years ago Stanley Longstaff and I had this discussion. His response was something like this...

16 strands rated at X, there are 1, maybe 2 strands nicked. It still gives you 5400 so its most likely fine. But if you question it, which you do cause you asked, is it worth having that doubt in your mind?

There was alot more discussion but that was the meat of it.

Miss ya Stanley
 
I think it would be cool to take a rope half cut in two and bounce, say, 225 pounds on it repeatedly until it broke. I wonder how many "falls" it would take before it broke? I bet it would be in the 1000s with under a 2ft. "fall". I think it would be informative to do the same type study with a rope that has been contacted with gasoline or bar oil, etc. Modern rope is dmn strong.
 
[ QUOTE ]
I think it would be cool to take a rope half cut in two and bounce, say, 225 pounds on it repeatedly until it broke. I wonder how many "falls" it would take before it broke? I bet it would be in the 1000s with under a 2ft. "fall". I think it would be informative to do the same type study with a rope that has been contacted with gasoline or bar oil, etc. Modern rope is dmn strong.

[/ QUOTE ]

It has been done. Only problem is you need to know german to be able to read the study results. Sicherheit im Fels II by Pit Shubert
 
My PhD ex bro in law, former Morristown NJ school district superintendant used to ground for me decades ago. He ran a saw into a new 1/2 inch braid esterlon lowering line. When I went to tie a piece the next time I saw he had duct taped the spot where he had nearly severed the line all the way thru.

I thought that was amusing given the intelligence involved in that thought process.
 

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