Internetworkers: http://www.ibiblio.org/internetworkers/

[Jim Ray <jim AT neuse.net>]

now, now, tanner.  plenum refers to airspace for HVAC.  it does not 
refer to the inside of walls.  my jobs pass commercial code.  they have to.

you are plenty safe running non plenum cable inside walls.  i reckon 
i'll be running out of the house when it catches on fire before i hang 
out sniffing too many fumes :-)

Regards,

Jim

Jim Ray, President
Neuse River Networks
2610 Vanderbilt Ave.
Raleigh, NC 27607-7247

tel: 919-838-1672
cell: 919-606-1772
http://www.Neuse.Net

Connecting You to the World since 1997

Tanner Lovelace wrote:
> > On Tue, 18 Jul 2006, Jim Ray wrote:
> > > cat6 is all fine and dandy.  however, i paid $450 per 1000' box due to
> > > customer specs for cat6 plenum cable and pay $55 per 1000' box for cat5e
> > > non plenum.  the only difference technically is that cat6 goes up to 10
> > > Gb.  cat5e takes you to 1 Gb.  not many folks have 10 Gb components
> > > available.
>
> You do realize the difference between plenum and non-plenum cable, right?
> Only plenum cable is rated for going inside the walls.  Non-plenum cable
> should NEVER be run inside walls.  As wikipedia puts it:
>
> "Plenum cable is jacketed with a fire-retardant plastic jacket of either a
> low-smoke polyvinyl chloride (PVC) {patented 1987} or a fluorinated
> ethylene polymer (FEP)."
>
> Ref: http://en.wikipedia.org/wiki/Plenum_cable
>
> So, there's a reason plenum cable is so much more expensive.  Your
> comparison of plenum versus non-plenum cable is at best disingenuous
> and at worst fraud.  Plenum must be used in plenum spaces or you risk
> having to rip it all out and put new stuff in at dramatically higher costs.
>
> Tanner