? about Cat 5 Cable Shielding... PVC? Fire Code?

Im a noob to networking.

Was told that if our cables in our wall were made with PVC shielding that it would against fire code.  How do I tell?

All the cables to to our router are BLUE with no writing on them?

THere are 2 types  PVC shielded and one other  what was the name of the other?


What should we be using
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mrchaos101Asked:
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PsiCopCommented:
I don't think they mean "shielding". I *think* they are talking about "plenum" vs. "non-plenum".

"Cat 5" is generally short-hand for "Category 5 UTP cabling", and the "UTP" stands for "Unshielded Twisted Pair". There is no "shielding".

"plenum" or "plenum-rated" generally refers to wire that is safe to run thru a space where air may be pumped as a part of an air-conditioning system. Generally, that's the only thing that trips folx up insofar as building codes go - if they don't run plenum-rated cable in their drop ceiling, or something like that.
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mrchaos101Author Commented:
Ok then

This is my understanding..

Plenum  is FIRE CODE SAFE

Un-Plenum is PVC in the shielding and lets out a CLORINE gass when burned...

I think this is what I was told.

On of my clbs  (the only white one) says Cat 5e UTP ??

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lrmooreCommented:
PsiCop is correct. The Plenum coating replaces the PVC coating and is generally required in any spaces where air flows for ventilation. The Plenum coating does not give off the same toxic fumes that PVC will in the event of a fire.
Your typical CAT5 patch cables are not covered because these are generally used around people who will 1) un-ass the AO in the event of a fire, or 2) die anyway because they're too close to the fire.
The cables running in the walls and ceilings, though, could burn enough to cause toxic fumes that could put people down long before they even know there is a fire.
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mrchaos101Author Commented:
AH  ok...

So now my next question is.... a cable that is not normaly marked how do I know if it is Plenum coating or PVC coating?

The cables in our walls ar blue (means nothing Im sure) and have no markings. DOnt even say cat5 ect.

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mrchaos101Author Commented:
Does Hypergrade - ETL
or

(UL)

mean any thing?
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abriggs1Commented:
Sounds like a old CAt5 cable and probaly your pvc cable.
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lrmooreCommented:
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mrchaos101Author Commented:
Ok I  went dwon the line and cleand off a line with water. It does have markng LITE blue  LOL... hard to read but I found this..


BERK-TEK 24 AWG CMR 75C (UL) CSA PCC 60C FT4 LAN-TEK VERIFIED (UL) CAT 5 TIA/EIA


I went to the web site above and found :

allNet Technologies Pty Ltd  
02 9906 2700
A95/CA/0169 BERK-TEK 24 AWG CMR 75C (UL) CSA PCC 60C FT4 LAN-TEK VERIFIED (UL) CAT 5 TIA/EIA
25 0.51
CAT5 Cable Pelnum


But I still have No idea if it is PVC or
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mrchaos101Author Commented:
BAH messed up the end of that ment to say:

allNet Technologies Pty Ltd  
02 9906 2700
A95/CA/0169 BERK-TEK 24 AWG CMR 75C (UL) CSA PCC 60C FT4 LAN-TEK VERIFIED (UL) CAT 5 TIA/EIA
25 0.51
CAT5 Cable

But I still have No idea if it is PVC or Pelnum

I put Pelnum in wrong spot
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lrmooreCommented:
Odds are that it is not plenum cable, but you could contact Berk-Tek directly.
However, The "CMR" designation refers to this:
CMR - Riser type cables passing the UL 1666 test are engineered to prevent the spread of fire from floor to floor and are suitable for vertical shaft applicati
Ref: http://www.berktek.com/technical/gen100.asp
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mrchaos101Author Commented:
hmm... so do you think Im ok or do you think we may need to replace the cables?
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mrchaos101Author Commented:
I see the the UL  means CMR.. im not worried about spreading a fire so much.... as I am to the gass that is let off from the cable when it does burn..... our AC intake is VERY NEAR the cable lines.
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lrmooreCommented:
That's something that you might want to ask a professional building inspector. The cable does appear to be approved for risers, but it is not specified as Plenum rated. If you budget can stand it, and you are remodeling anyway, I'd say replace it all.
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plemieux72Commented:
Plenum-rated cable usually says CMP instead of CMR.
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mrchaos101Author Commented:
Thanks for all your help.

Gonna split poitns between lrmoore and PsiCop  as both of you gave me good information.

Thanks again.
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PsiCopCommented:
Sorry I vanished - didn't have access to EE after yesterday afternoon - I was busy with my local Novell User's Group. Glad you got your Question answered and thanks for the points.
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