I'm having a problem finding guidance on the proper density for a med marijuana facility which is an F-1 occupancy. The existing system is an ancient ordinary hazard pipe scheduled system and as such the limits of the schedule won't allow any additions without major revamping. We've opted to...
Hi Guys,
When project have pre-engineered fire sprinkler drawings it has been common practice for companies that I have worked for to simply cut and paste these drawings on the company's own title block and submit them together with the hydraulic calcs to get a permit. Obviously the PE's seal...
Can elbows be located in any orientation and any location when it comes to vertical inline pumps? All the requirements in '20 for restrictions on the orientations of elbows seem to only be applicable to horizontal splitcase.
Thx,
I have a situation (light hazard, unobstructed construction) where each office contains both ductwork and 2X4 flourescent lights suspended from the ceiling all within the 18" envelope from the roof deck. There are no ceilings, everything is open to structure. The roof is sloped (.5:12) so there...
When we calculate 4 adjacent sprinklers in a nfpa 13 system (residential section) we're suppose to calc the four sprinks which create the most demanding condition. I believe the handbook uses the word 'contiguous' to further describe the situation but my question is this:
You have a line with...
I generally stay as far away as possible from any light fixtures but I'm working on a project where things are cramped and I'm wondering how to approach proximity to track lights in a kitchen for a NFPA #13 (2010) system. If I use the 4X rule x the largest dimension of the light (which would be...
Below is 13's definition of encapsulation. In a situation where you have a shrink wrapped pallet with a rigid plastic sheathing only on TOP of the pallet it would appear this would not be considered encapsulation per se since it's not "completely enclosing the sides and top". Should any...
I was wondering what you guys do when you need to request cad files? Do you put this in the GC's lap or do you call the architect direct? What is the *proper* route for this request?
I know I've seen something online concerning the issue of diesel fire pumps with a flow meter & test loop overheating the water in the loop past the recommended levels. Is this a common occurrence and what can be used to prevent it?
NFPA #13 2007 Ed.
8.15.1.2.9 Concealed spaces over isolated small rooms not exceeding 55 ft2 (5.1 m2) in area shall not require sprinkler protection.
"Isolated small rooms" is this meant to be a reference to the definition of a "small room" as indicated in 3.3.15 meaning it has to be light...
When sizing a water storage tank for exclusive fire protection use, and fed by a fire pump, should the tank be sized on 150% of pumps rated capacity (at the req'd duration)or just the fire sprinkler demand + inside hose?
I'm working on this project with a booster pump on city supply. I know municipalities like to keep at least 20 psi in their systems - our system is fine there at the point of connection but at our pump inlet calculations are showing 2 psi available after friction losses. there's about 30 psi at...
I've got a dedicated fire pump feeding a Class II Standpipe system w/ 1 1/2" hose stations. There are 2 standpipes fed from a common supply. I need some clarification on how many stations to calc.
From reading NFPA #14 my first guess would be (2) one at each standpipe. NFPA #14 7.10.2.2.1...
I'm designing a sprinkler system for a little 7,000 sq. ft. warehouse with about 1/4 of it being group 'b' occupancy and the actual warehouse being S-1 occupancy. This is split down the middle to accommodate two tenants. The fire sprinkler contractor estimated this project based upon ordinary...
Hello,
I'm looking at a set of pre-engineered fire sprinkler drawings for a 1,350 sq. ft. warehouse which is part of a wastewater treatment facility. The warehouse contains a belt-filter press in the main area and then there's two smaller rooms (about 250 sq. ft. ea.) for chemical storage...
