I'm not sure I believe a 3x difference BUT Corning drop is some of the most flexible drop I've handled, it may have smaller fiberglass rods than others.
I suspect the real difference is the exact test specification. Fiberstore may hang 1200N on it in a lab and say, well it didnt break so you're good to go. Corning may hang 400N on it, then do 100 cycles of -40C to 80 C, while blasting it with UV, and then say it has to not break and not show any signs of wear and no additional fiber loss etc. Espicially when testing things expected to have decades of life, all of the testing will be accelerated lifetime type testing. On Fri, Oct 26, 2018, 11:31 AM Adam Moffett <[email protected]> wrote: > Yup that's a fact. We're in a "heavy" ice zone. > > ...All the more reason to try and understand why one cable should be > spec'd 3x stronger than another. If that's a factual claim, then I want it. > > -Adam > > > On 10/25/2018 8:44 PM, Jason McKemie wrote: > > You'll also want to make sure you factor in the ice loading for your > region - that can have a pretty noticable effect on your maximum span > length. > > On Thursday, October 25, 2018, Adam Moffett <[email protected]> wrote: > >> This cable at FS: >> https://www.fs.com/index.php?main_page=product_info&products_id=31945 >> >> Their web page is saying long term tensile strength of 1200N. >> Corning ST drop cable has a similar type of strength member and they say >> 400N. >> >> At 1200N it would appear that I could hang that cable 600 feet with a 1% >> sag and I'd still be within strength limits. >> >> So is this a lie like the horsepower on a shop vac, or could they be >> using some alternate but valid way of measuring tensile strength, or could >> it actually be correct? >> >> I sometimes pretend I'm an engineer, but I'm wondering if any of you real >> engineers out there have any insight. >> >> Thanks, >> Adam >> >> >> -- >> AF mailing list >> [email protected] >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> > > > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >
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