[TowerTalk] Using Plenum Plenum Cable

[Bob Nielsen]

On Jun 21, 2006, at 10:55 AM, K8RI on Tower talk wrote:

> 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.
>

Plenum-rated cables have a fire-retardant outer jacket for use in  
plenums (spaces in buildings used for air circulation).


73 - Bob, N7XY