[lug] Outdoor rated Cat5e STRANDED
johndollison at hotmail.com
Mon Sep 28 17:37:40 MDT 2015
FWIW, I've had to put solid wire in places where stranded wire would have been preferred; the key is to spread the flex over several feet instead of just a few inches. Either method below should last for several thousand flex cycles, so long as the connector ends are prevented from pulling, flexing or twisting (i.e., good strain relief).
1. Install the device with a large coil (or two) of wire, like a big Slinky.
2. Run the wire across to the equipment rack's door hinge, then do a two- or three-foot long vertical run up the side of the hinge, put a gentle U-bend at top, and come back down the other side of the hinge.
Here's a good white paper that gives an overview of Ethernet cable specs, then dives into the solid-vs-stranded discussion, and specifically discusses patch cables:
- - - https://www.andcable.com/files/UnderstandingStrandedandSolidWiring.pdf
You might get some better ideas (and proper industry standards) with this search:
- - - http://www.bing.com/search?q=equipment%20rack%20wiring%20standards
> To: lug at lug.boulder.co.us
> From: gary.hodges at noaa.gov
> Date: Mon, 28 Sep 2015 12:24:14 -0600
> Subject: Re: [lug] Outdoor rated Cat5e STRANDED
> I work for NOAA and we operate some research sites around the U.S. What
> I mostly need are essentially patch cables that will have exposed
> sections. Some of my devices are mounted on the inside of enclosure
> doors, so I want stranded for the flexibility when opening and closing
> the doors. The Belden 7930A has a minimum bend radius of 1", the 7924A
> bend radius is 2.5". Some runs are in conduit and the 7924A has a
> slightly better pull rating. I'm debating pros and cons of those two
> products now. I can live with the goop some of the exterior products
> have, but I don't think it's necessary for my applications.
> On 09/28/2015 11:41 AM, Quentin Hartman wrote:
> > Most of the things you say you don't want in the cable are what make it
> > outdoor rated, so what is your application? If you're just installing
> > outside but not in ground contact (like on the outside of a house or
> > something) hitting it with some exterior spray paint will give you the
> > UV protection for a tiny fraction of the cost. It will also let you
> > match the cable to the building better and improve aesthetics. If you're
> > doing something else with it, the other features are probably a good
> > idea and would be worth the hassle of dealing with them to get a
> > reliable installation.
> > QHÂ
> > On Mon, Sep 28, 2015 at 11:09 AM, Gary Hodges - NOAA Affiliate
> > <gary.hodges at noaa.gov <mailto:gary.hodges at noaa.gov>> wrote:
> > On 09/28/2015 11:04 AM, Zan Lynx wrote:
> > On 09/28/2015 10:25 AM, Gary Hodges - NOAA Affiliate wrote:
> > Does anyone know of a supplier, or if it even exists, for
> > outdoor rated
> > Cat5e (or Cat5 or Cat6) STRANDED bulk cable?Â I would
> > prefer regular
> > cable, i.e. not gel filled, shielded, drain, direct bury
> > rated, etc,
> > just with a UV/Outdoor rated jacket.Â Gel filled etc might
> > be acceptable
> > if the conductors are stranded.
> > Some Google searches found the following:
> > http://www.l-com.com/ethernet-category-5e-sf-utp-cmx-outdoor-rated-tpe-26-awg-4-pair-stranded-conductor-black-1kft
> > Now, if that's what you wanted or not, at least it shows that it
> > exists.
> > I was on that site earlier and must have overlooked it. That
> > particular double-shielded. Thank you.
> > Gary
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