There's no doubt a wet system is best protection. ANY delay while you're in
the room of origin is going to feel like forever if you're waiting for staff
to evacuate your butt from your bed. Flashover comes to quick for the
delayed dry system response to spare your life. This is pretty elementary.
-boun...@firesprinkler.org
[mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Ed Kramer
Sent: Monday, March 30, 2009 8:51 PM
To: sprinklerforum@firesprinkler.org
Subject: RE: RESIDENTIAL OCCUPANCY DRY SYSTEM
The NFPA 13 ROP and ROC both have items that should help clear up the issue
true but the text is weakly worded. The section that references the
Table says based on the hazard not the type of sprinkler (as does
the Table). I believe the intent was for residential sprinklers (for
which a 15 sec requirement exists as part of the listing test
standard) but writing
I wish that existed many editions ago. One of our clients have 20+ group
residences built in the 70's and 80's, more like large ranch houses, they
house severely mentally retarded adults. Most have 3 or 4 DPV's and sch40
systems throughout the attics feeding uprights and dry pendents. Some of
I may be over thinking this problem. But I see an elderly person in a wheel
chair that can care fore himself but may not move very fast in an emergency.
Dry system activation will delay water application resulting in a longer
pre-burn and a more likely poor outcome to the survivor. That's why we
Art,
Where does the 15 seconds come from? I can't find anything in 13. Is
it 101? is it a local requirement?
On Mon, Mar 30, 2009 at 2:24 PM, Arthur Tiroly atir...@atcofirepro.com wrote:
I may be over thinking this problem. But I see an elderly person in a wheel
chair that can care fore
The NFPA 13 ROP and ROC both have items that should help clear up the issue.
IF the proposals are accepted as written, any sprinkler protecting a
dwelling unit (residential or QR) fed from a dry system will have to deliver
water within 15 sec. (Reference section 7.2.3 and subsections)
Ed Kramer
