[PLUG-TALK] Plenum-rated ethernet cable

Denis Heidtmann denis.heidtmann at gmail.com
Mon Mar 29 17:32:11 UTC 2010


On Mon, Mar 29, 2010 at 9:39 AM, Keith Lofstrom <keithl at kl-ic.com> wrote:
> I need about 250 feet of plenum-rated ethernet cable, cat5e or cat6 .
> Ethernet cable comes in 1000 foot boxes, and I don't need that much.
> cat5e is around $250/1000ft .  cat6 is perhaps $300/1000ft .  cat6
> is preferred.
>
> Plenum-rated is the ultra-safe stuff, doesn't burn, self-extinguishing.
> Note that most of the "plenum" cable out there is counterfeit.  Some
> manufacturers submit high quality test samples to UL, get approval and
> a label, then substitute cheaper materials in China.  See for example:
>
> http://www.accu-tech.com/accu-insider/bid/30012/CCCA-Study-Offshore-Cat-5e-and-Cat-6-still-pose-fire-risk
>
> or http://snipurl.com/v58bq
>
...
> Keith

Since getting true plenum grade is chancy, is it practical to run the
cable in its own EMT?

-Denis



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