[TowerTalk] Using Plenum Plenum Cable

[K8RI on Tower talk]

Couple of things I need clarifying.
What is plenum rated cable? I worked in industry for years, but have been 
retired for over 7, and never heard the term used.  We used thhn and other 
cables in cable trays and conduit.


>I don't have any experience with plenum rated coax but I do have experience
> with plenum rated 10baseT cabling and that stuff won't last but a couple 
> of

Nor have I heard of any base T cabling. I use Cat5e used for a gigabit 
netork and lots of it. Like many cables it has to meet a spec for handleing 
signals.The mechanical quality of Cat5e cable varies widely.  I have one 
piece that has been just laying on the ground now for a couple of yerars 
with no noticable deteoriation.

> months exposed to the sun.   For 10baseT they make a special outdoor 
> version
> with a black UV resistant covering that's also plenum.

I have red, gray, and blue in the 1000' auto feed boxes. They all seem to do 
well, but like most Cat5e cables they do not like short radius bends which 
can make it a bit difficult to get into conduit.

Roger Halstead (K8RI and ARRL 40 year Life Member)
N833R - World's oldest Debonair CD-2
www.rogerhalstead.com
>
> Matt
> ----- Original Message ----- 
> From: "Doug Rehman" <rehman at surveil.com>
> To: <towertalk at contesting.com>
> Sent: Wednesday, June 21, 2006 10:36 AM
> Subject: [TowerTalk] Using Plenum Plenum Cable
>
>
>> Does anyone have any experience with plenum rated cable being used
>> outdoors?
>> I'm curious if the white outer sheath will stand up to the outdoor
>> elements,
>> especially UV, or if it will harden and crack.
>>
>> Tnx
>> Doug
>> K4DDR
>>
>>
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