Looking for input from NFPA here as well as others... I have come across some circumstances that I can't give direct answers to regarding the application of 220.127.116.11. Some have asked just what type of "maintenance work" requires the inspection and testing in accordance with 5.2.3. Does this include such maintenance work as adjusting the closer… Show more
I am short on time and need help going in the right direction. The AHJ wants the sound levels in each room without a horn/strobe. I indicate horn/strobes in the corridors and common spaces. I know the output for each horn/strobe: 98dBA The distance from each room to the horn/strobe varies, but I plan on basing the calculation to the… Show more
Good day, Could anyone please provide son guidance on why this underground section collapsed? This is one of the connections from the 8” loop to a riser system which services a sprinkler branch. The pumps consist of two 2,000 gpm @ 130 psi. Previous hydro tests where successfully completed to the entire loop, there are 11 sprinkler systems… Show more
I am involved in the construction of a large plant. The plant utilizes and distributes numerous flammable liquids and/or gasses (the primary ones being ethanol and formic acid). In certain areas this distribution and piping is contained above an accessible ceiling. Additionally there are valves and fittings in the interstitial spaces. We are using… Show more
Good Morning All, I would like to ask, when you calculate flow (base calculation) do you include coefficient or excess? For example: CMDA 0.30gpm/ft2 (12.2 mm/min) x 2500 ft2 (232 m2) = approximately 750 gpm (2831 L/min) x 1.4 = 1050 gpm (3964 L/min) 1.4 is for disturbance flow excess/coefficient is this correct to add? ESFR… Show more
Is there a limit on Fire pumps?...How many systems can 1 Fire pump supply....Bldg. is 750,000 sq. ft.
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hi engineer i have deluge system for extinguishing and i want to know is there specific area for deluge valve. i mean the maximum area can coverage by deluge valve. thanks