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darcylu
Hello,   We are going to construct a power plant. It will be steel structure.   For NFPA 500 7.4.1.4.7, "Structures of Type I or Type II construction used exclusively for the enclosure of steam generators, steam turbines, gas turbines, heat recovery generators, and flue gas treatment equipment shall be permitted to be of unlimited height and… (Show more)
in Data Analytics Sandbox
pgiuliana
2019 NFPA 484 10.6.2.4.1 requires that bearings shall be equipped with temperature indicating devices.  Does this apply to a TEFC motor turning a fan wheel on the negative side of a wet dust collection system (after the dust is scrubbed/rendered inert)?
in Smart Enforcement
iryna.seleznova
We have an oil extraction plant. We have to make sprinkler protection for the preparation department. We don't sure what kind of extinguishing agent need to use, water or foam. Also the requirement to one:  -Density & Demand area; -Hose demand, interior (wall hydrants); -Hose demand, exterior (exterior fire hydrants); - Minimum water supply… (Show more)
in Data Analytics Sandbox
iryna.seleznova
We have an oil extraction plant. We have to make sprinkler protection for the preparation department. We don't sure what kind of extinguishing agent need to use, water or foam. Also the requirement to one:  -Density & Demand area; -Hose demand, interior (wall hydrants); -Hose demand, exterior (exterior fire hydrants); - Minimum water supply… (Show more)
iryna.seleznova
We create a design of a deluge foam system for the oil extraction plant. NFPA 16 show density  6,5 mm/min. We used instead nozzle open sprinkler k 115. According to NFPA 13 “27.2.4.11.1 Minimum operating pressure of any sprinkler shall be 7 psi (0.5 bar)” But if we use 0.5 bar we get density 9 mm/min and increase the volume of foam. System… (Show more)
in Fire Protection Systems
fn1000
groove HI Dear  My question is about using Grooved Fittings in Sprinkler systems.  What are the General Norms, conditions, limitations.  Can we use Grooved Fittings for small size pipes. Like 1-2 Inch dia.  Where we can use Mechanical Tee and where we can't. Any size restrictions.  Can we use Reducing Couplings.  regards, Fire Protection… (Show more)
in Smart Enforcement
garyknehans
What are the Time requirements for an activation of an alarm from a protected premises fire alarm systems with a dact to a central station and notification to premises and or an emergency service facility? The facility says the receipt must be within 90 sec. to the receiving station from the FACP of the facility, to which I agree with. What are… (Show more)
swaugh
Business Occupancy 2 story - There is a suite that has sensitive information on both sides of the main egress corridor leading to the stair. (One of two stairs on the floor.) If the suite needs blocked off as a whole from the rest of the floor for security reasons, can a door be placed in the middle of the corridor and release on the fire alarm?
in Women in Fire Safety
rayw
I am having a hard time finding the requirements for location of notification devices for this occupancy type if they need to be all throughout or  just in public spaces. Any help would be awesome
in Data Analytics Sandbox
j.beverdam
Hello, NFPA Member ForumAsk NFPA Staff@   I have below mentioned question:    According NFPA 13, par 8.7.9.3 (2019 edition) only half of the flow from upright, pendent. and other nondirectional sprinklers shall be used in determining the minimum average application rate over the protected surface.    In case of exposure protection of an area were… (Show more)
in Women in Fire Safety
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