rbarnswell
Mechanical
- Jun 14, 2012
- 9
I need some clarification on this matter.
The area that needs to be sprinkled is 5,864 square feet. I would classify the area as Extra Hazard based on the definition in NFPA13. Using the area-density method i would get approximately 1,319 GPM. The I am not sure what to do next. From table 7-2.3.1.1 the required water supply duration is 90 minutes.. This would mean i would need 118,746 gallons for the 90 minutes. How do I incorporate this with the hose reels (standpipes) that I would like to add? Can i use 1 pump for both the standpipes and the sprinkler system. I would need a total of 6 standpipes. The class standpipe is class 2. Can somebody tell me how to go about this please.
And if i never had the sprinkler system and i was just going with standpipes (forget that the building is a supermarket) and i have 6 standpipes. Since it is a class 2 that would mean the flow required is 100 GPM for the most remote standpipe and also the required water supply would be 6000 gallons. (since for this class you would not add for additional standpipes) That is what i got from the code. I hope i am correct. Am i correct?
Would greatly appreciate the help .. really need to finalize this.
Regards,
Ramone
The area that needs to be sprinkled is 5,864 square feet. I would classify the area as Extra Hazard based on the definition in NFPA13. Using the area-density method i would get approximately 1,319 GPM. The I am not sure what to do next. From table 7-2.3.1.1 the required water supply duration is 90 minutes.. This would mean i would need 118,746 gallons for the 90 minutes. How do I incorporate this with the hose reels (standpipes) that I would like to add? Can i use 1 pump for both the standpipes and the sprinkler system. I would need a total of 6 standpipes. The class standpipe is class 2. Can somebody tell me how to go about this please.
And if i never had the sprinkler system and i was just going with standpipes (forget that the building is a supermarket) and i have 6 standpipes. Since it is a class 2 that would mean the flow required is 100 GPM for the most remote standpipe and also the required water supply would be 6000 gallons. (since for this class you would not add for additional standpipes) That is what i got from the code. I hope i am correct. Am i correct?
Would greatly appreciate the help .. really need to finalize this.
Regards,
Ramone