[GRLUG] Plenum Cable

[Adam Tauno Williams]

On Thu, 2011-07-28 at 16:26 -0400, Mike Williams wrote:
> On 07/28/2011 03:58 PM, Adam Tauno Williams wrote:
> > Position of the cable matters to the fire inspector as well; cable
> > cannot 'lay' on the suspended ceiling.  It has to be secured up and away
> > from the tile&  grid.  I've inherited a couple of sites who have been
> > cited for this.
> Is that just for plenum spaces or all dropped ceilings? 

All.

> Very few places 
> where I have seen wire run through dropped ceilings have actually 
> secured it, although I admit I haven't dealt with a huge number of 
> locations. 

It is common, which doesn't make it legal.

> Other than keeping the network wire from contacting 
> electrical cables or lights, I don't see it being much of a fire hazard. 
> It would look nicer if it was all tied to something up there, but the 
> point of a dropped ceiling in the first place is so you don't see the 
> wiring!

Fire fighters often [always?] tear down the suspended ceiling; it was
explained to me that tangles of [unsupported] wires are a safety hazard
in case of a fire, primarily for the emergency responders.


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