• NFPA Water Based Systems Designer

    Hi all,      I am a life scientist that is looking to make a career change. I am intrigued by fire sprinkler design because I have done quite a few installation jobs with my dad as a laborer (he o...
    travis_white
    last modified by travis_white
  • Classification of Indoor Grow Operation

    How would you classify an indoor (cannabis) plant grow room. Drywall & concrete. Plants are well watered in pots, sitting on palates covered in congregated metal. Lights are securely mounted with wire. Plants are ...
    efordonski
    last modified by efordonski
  • Sprinklers in Scissor Stairs

    In a noncombustible construction stair shaft, NFPA 13, 2013, section 8.15.3.2.2 states that "where noncombustible stair shafts are divided by walls or doors, sprinklers shall be provided on each side of the separation...
    supportit
    last modified by supportit
  • underground piping

    is there a clearance code for underground pipe that go under or above other pipes in the ground?
    bnado_coronado
    last modified by bnado_coronado
  • NFPA 25: Replacement of a Power Monitor

    Colleagues, hope all of you are well,   According to table 8.6.1 of NFPA 25, in case of replacement of a power monitor, I shall "Perform six operations of the circuit breaker/isolation switch disconnect (cycle t...
    ivan.balashov
    last modified by ivan.balashov
  • 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
  • Protection for Straw

    I have a building that is being used for storage of straw. They will use the straw to make silt fencing. The straw does have a lower moisture content. What commodity class would you consider it?
    mschuett
    last modified by mschuett
  • Zone control valve

    Hi, Please refer below snap shot from NFPA 13. Question 01 We are designing for wet sprinkler system Ordinary hazard. After 275 sprinkler the below table sating 200 mm diameter pipe.Section 8.2 not mentioned about pip...
    nirmalraj.muthu
    last modified by nirmalraj.muthu
  • Studying / guidelines for cfps

    I am planning to study for CFPS Exam. Can anyone guide me on how to study for the exam .Do I need to study the entire books that's prescribed for CFPS Exam.Need suggestions?
    fasi436
    last modified by fasi436
  • How far is too far?

    Anyone have insight on how far a residence can be from a natural water source and still be able to use it in lieu of a cistern?
    chrisdavis332
    last modified by chrisdavis332
  • Hollow shaft motors

    Why NFPA 20 suggests hollow shaft motor for fire pumps? Can anybody clarify.
    m-arunkumar
    created by m-arunkumar
  • parking smoke system

    For parking smoke system, what is the max. number of smoke zone that can be connected to one smoke fan?
    amr.elkranfely
    last modified by amr.elkranfely
  • Fire extinguishers for generators??

    A building contractor is telling me that I need to install a fire extinguisher (properly sized/rated) within the enclosure of my exterior standby-power generator. I cannot find a requirement for this in NFPA 1, NFPA 1...
    thecodecoach
    last modified by thecodecoach
  • Water Pumping Stations

    Hi, In Which occupancy and hazard will cover the Water Pumping Stations as per the NFPA?. Please share your experiences. 
  • Hangers

    Looking in the NFPA13 2016 handbook and trying to find some verbiage about hanger spacing and location of hanger when we have pipe direction changes for a 1 1/2" , 2" , 3" , 4" and 6' pipe
    anthony.arellano
    last modified by anthony.arellano
  • Galvinized Pipe and Fittings

    I have a concerned issue with using galvanized steel pipe (ASTM A53) and malleable iron fittings in a combination water supply to domestic water systems and fire sprinkler systems.   Galvanized pipe and fittings ...
    wileywilson
    created by wileywilson
  • Sprinkler types

     I have in my hospital intermediate sprinkler head yellow bulb is this accepted by NFPA 13, OR we have to change the sprinkler head to Ordinary type red bulb 
    sabduljawad
    created by sabduljawad
  • Over side of the recommendations of NFPA 30

    Dear guys, I have a question about Foam protection for Warehouse Class IB. As requirement of Table 16.5.2.3 Max Storage heigh 25ft, Max ceiling 30ft but in my project have Storage heigh 28ft & ceiling ...
    landung1087
    last modified by landung1087
  • how many hose outltest class I stand pipe

    #Nfpa 14 Section 7.10.1.1.1 indicates for class I and III stand pipes they need to flow 500 gpm from the most remote stand pipe through the most remote 2 1/2 inch outlets. Does this mean that on the most remote interm...
    stoudtt
    last modified by stoudtt
  • FOAM SYSTEM PIPING

    Kindly clarify Black steel pipe can be used in the  foam concentrate line?   As per NFPA 16 2019    Clause 6.7.2.1  Foam concentrate  pipe and valve shall me made of one of th...
    hazmanmech
    last modified by hazmanmech