Designing an Emergency Operation Centre
What length of time can you store Potable cold water for an emergency scenario without applying any circulation or water treatment?
If you have a potable water storage tank filled with generic treated city water for 5 days use (state of emergency...
Gents,
I posed a question over a year ago with regards to window sprinklers. Just want to clarify.
If you use Tyco WS "closed" window sprinklers do they need to be on their own zone?
Was putting window sprinklers on their own zone only due to the older "open type" heads?
Application is...
Gents,
NFPA 22 says fire water tank vent needs to be minimum of 2".
Somewhere (long ago) i've heard that the tank vent needs to be at least 1 pipe size larger then suction line to fire pump.
Does anyone have any additional information? Or heard of the same requirement.
This job in...
Hey Dudes,
A gym in a school should be piped from the first floor zone and not the 2nd floor sprinkler zone.
I know this is how it's done, i've looked through 13 but can't find it, i know it's there... i've read the line before. I'm about to throw 13 out the window.
This clause says...
Gents,
NFPA 2007 13
A.6.9.3.1
"Outside alarms can be omitted where the sprinkler system is used as part of a central station, remote station, or proprietary signaling fire alarm system utilizing listed audible inside alarm devices."
What the hell does this mean?
You still need one inside of...
Folks,
I'm hoping someone will know this.
NFPA 55 10.3.2.2.3 States:
Portions of wall less than 10 ft (measured horizontally) from any part of a system shall have a fire resistance rating of at least 1/2 hour.
NFPA 55 10.3.2.2.5. States:
Portions of wall less than 10 ft (measured...
Has anyone ever heard of or seen sprinkler heads installed in a large rooftop unit with a side attached service space with large plenums.
I understand having heads in the service spaces, and large plenums, but having them in each section of the unit, ie: Coil section and fan section?
Any...
Folks,
I have just went through the 2006 thread with regards to Standpipes and Multiple FDC's etc. However I still have a couple of long winded questions. I apologize in advance.
When designing a combined system (standpipe/sprinkler system)the hydraulic calcs. includes calculating 500 gpm @...
Has anyone gotten specific. data from NFPA or AHJ's with regards to at what point during a renovation does an existing hydraulic calc'd system require a new hydraulic calculation performed.
Existing pipe schedule system can have pipe schedule done on reno's up to 5000ft2.
I've looked...
I have looked through NFPA 13 and cannot seem to find the answer. Designing an Elementary/High School, I believe the architect is looking at using glass on the exit/stairwells. We need to provide window sprinklers. If there are 5 sets of emergency stairwells, do you require to only flow one...
