Response from FS:
""
Hi Adam,
Hope you are fine~
For your question of the long-term tensile strength, I checked with our
product Dept.
The specification is correct and we can provide the long-term tensile
strength with 1200N, hope you know that.
""
Maybe drop cable can go farther than I thought.
I guess I still don't understand why the Corning drop cable with a pair
of fiberglass rods down the side can handle 400N while the FS drop cable
with a pair of fiberglass rods down the side can handle 1200N. Is the
strength member not the limiting factor? Is Corning just being more
conservative than FS?
If you hang the drop cable too far, what failure actually occurs?
On 10/25/2018 2:01 PM, Chuck McCown wrote:
That fiber glass central strength member is pretty strong. I think
you could use it as a tow rope.
*From:* Chris Fabien
*Sent:* Thursday, October 25, 2018 11:34 AM
*To:* AnimalFarm Microwave Users Group
*Subject:* Re: [AFMUG] Drop cable tensile strength
My guess it will not be much different strength than corning drop.
FS does make some drop with steel wire reinforcement, I'm not sure if
that would be any better because of the higher weight.
On Thu, Oct 25, 2018, 12:48 PM 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
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