Log in to follow, share, and participate in this community. In the provison clause184.108.40.206 of the NFPA2001, regarding to Halocarbon systems, "Halocarbon systemsforspaces that arenormally occupied and designed to concentrations above the NOAEL[seeTable220.127.116.11.1(a)] shall b... Clause 18.104.22.168.1 of NFPA 12 has the following requirement: For high-pressure systems, the pressure relief devices shall operate at a pressure no less than 2400 psi (16,547 kPa) and no more than 3000 psi (20,864 ... Are there any occupancy restrictions where a double interlock preaction system may be used? For example, could an entire hospital (Institutional) provide sprinkler coverage with a preaction system? It appe... Within the NFPA 14, there are three types of hydrant are available to be selected, namely, ClassI, ClassII and Class III, also, the different configuration and different calculation method also illustrated in the stan... Hi, We are designing fire protection system for an existing plant. Plant has sufficient under ground tank and pumping capacity with negative suction. Due to addition of new building height, project need to chan... When i design the IG541 gas extinguishing system, there is no specific requirements about how to design the hanger and support? Now, for me there are two choice below, i don't konw how to deal with this issue: 1. Usi... I'm with an AHJ and we were thinking of enforcing all of the NFPA 5 year inspections. Just looking for thoughts and advice on who out there is testing the FDC's according to 25. Thanks. I have a NFPA 14 standpipe that I want to prevent from inadvertent/malicious opening of the hose connections. What suggestions do you have? This is what I have been able to come up with: Put caps on with a spa... NFPA 13 2013 Ed. Section 8.15.14 (1) (a) "In light hazard occupancies where sprinkler spacing (either spray or old-style sprinklers) is less than 10 ft x 10 ft, a minimum clearance of at least 18 in. shall be provided... There is no fire water pump to supply water in an unmanned platform, so the platform used the foam fire-fighting system which the water and 3%AFFF is premixed. In the NFPA11, NFPA16 or other specifications, Whet... We want to install fire detection system in the area where HVAC system is already installed. In case, if we install the fire detection system on roof which is above 1.9 m from cool air supply duct the possibility of a... Working in Nassau County, NY where we are designing for Above Ceiling spoke detectors where the ceiling above has beam pockets. My question is when the NFPA references ceiling height, is it the height above th... I am currently trying to repaint scaling and corroded pipe a large scale facility fire pump room with multiple pumps for redundancy purposes. What code will I need to look at in order to find the system flow dir... Hi there, I´m in a Multistorey building supervision and have a question, in an automatic dry sprinkler system can I locate a floor control valve above the false ceiling?, the floor control valve is inside the ac... What is the distance between ABC fire extingguisher Hi there, I would appreciate some feedback on using quick response sprinklers in a dry system. I have found no reference in NFPA 13 indicating specifically if QR Uprights can or can not be used. Therefor... NFPA 13, Ed. 2016, clause 22.214.171.124.4 requires back-to-back sidewall spray sprinklers to be separated by a continues lintel or soffit. What should be the dimensions, and if any other requirements, of the required l... Need some clarification on what the hydrostatic retest requirements are for 3 rows of 2500 psi Nitrogen tanks installed in bank for water mist suppression system in an underground fuel vault (not buried, in conditione... Hi, For a combined Sprinkler/Stand pipe System- Completely Sprinklered , and fire hose connected to wet sprinkler riserin accordance with 126.96.36.199 which am verifying the system Fire Pump Size ... What certifications are required to conduct annual Fire Door Inspections per NFPA 80?