• Explanation Of NFPA 13 A.8.6.7.1

    Can anyone offer a better explanation of this entry?   "NFPA13 A.8.6.7.1: Ceiling features in unobstructed construction that are protected by sprinklers in the lower ceiling elevation when the higher ceiling ele...
    hshengst
    last modified by hshengst
  • Change in Occupancy (NFPA 101)

    I am trying to get to the bottom of an construction issue and was hoping to get some help.  Background This is occurring in a jurisdiction that has adopted NFPA 1 and 101. Significant construction project in whic...
    ffz290
    last modified by ffz290
  • DMP New Panel Install

    We have 19 buildings in HOA, 4 units in each building for a total of 76 units.  30 year old fire panels need to be replaced and considering using DMP  XR150FC Fire Control Panel, 630F Remote Annunciator, 263...
    tania.gire
    last modified by tania.gire
  • que equipo se adecua a una cámara frigorifica?

    Que equipos podría instalar en una cámara frigorífica para detección y extinsion de incendio?
    kaltechss
    last modified by kaltechss
  • PVC pipe on standpipe system

    Good day all, What is your experience using PVC SCH40 pipe on standpipe systems? eg for hose reels? Although NFPA 14 does not reject it's use, I am concerned about its heat resistance.    Thanking you in ...
    kavir
    last modified by kavir
  • UL Listed pipe

    Hi, Is it necessary for the Fire sprinkler black steel pipes to be UL listed although it is conforming with ASTM A53 standard as per NFPA 13 7.3.1.1.? If the answer is yes, in which code can I find such information? ...
    waelio
    last modified by waelio
  • define section 605 in 2015 international fire code

    I'm installing a interactive solar photovoltaic sysyem 53.460 kWpdc Winston-Salem North Carolina   Fire Plan reviewer is requiring a center-line axis in both axes of the roof. 605.11.1.3.2 (2) I fully understan...
    jetchells
    last modified by jetchells
  • NFPA 211 "Qualified Agency" question

    According to NFPA 211 Qualified Agency is any individual or company that is engaged in connection venting repair, installation, service .....and has experience in such work.  Does that person need a specific cert...
    talibensenior3
    created by talibensenior3
  • Who can do maintenance?

    Isn't there a reg that allows for property managers and engineers to perform maintenance on their own systems?  Obviously we understand inspections, etc. must be done by licensed personnel...
    javenmarg
    last modified by javenmarg
  • Sprinkler For Historical Building

    Good day all Apart from AHJ does any where in any NFPA mandates  a historical building shall be protected by fire sprinkler ?   thanks in advance 
    kenba.groups
    last modified by kenba.groups
  • According to NFPA 2001 , when using Halocarbon systems, how to take the specific measures to limit the exposion time within 5minutes if the select the design concentration above NOAEL ?

    In the provison clause1.5.1.2 of the NFPA2001, regarding to Halocarbon systems, "Halocarbon systemsforspaces that arenormally occupied and designed to concentrations above the NOAEL[seeTable1.5.1.2.1(a)] shall b...
    zhangya
    created by zhangya
  • NFPA 12 - Setpoint of PRV for CO2 Flooding System

    Clause 4.7.2.2.1 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 ...
    saintvida
    created by saintvida
  • Double interlock preaction system - full building coverage

    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...
    rerickson
    last modified by rerickson
  • How to determine the types of the hydrant for different protected rooms as per NFPA 14, Class I, Class II or Class III? 

    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...
    zhangya
    last modified by zhangya
  • Negative suction fire pumps for existing water tank

    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...
    vasu.chittem
    last modified by vasu.chittem
  • How to handle hanger and the support for  clean gas system according to NFPA 2001

    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...
    zhangya
    last modified by zhangya
  • Is anyone doing the 5 year hydro-static testing for FDC's according to NFPA 25?

    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. 
    sgrube
    last modified by sgrube
  • How to prevent a standpipe hose connection from malicious opening?

    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...
    jzour
    last modified by jzour
  • Spacing above an open grid ceiling

    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...
    hshengst
    created by hshengst
  • The storage period of the mixture of water and 3%AFFF?

    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...
    xujy27
    last modified by xujy27