• I am looking for up to date NFPA standards and training on UTV(side by side) operator training and policies

    In my organization we use side by side off road vehicles(UTVs) for all hazards response coverage during special events at city parks, venues, festivals, concerts, etc., in our urban areas.  We have zero trai...
    tyler_yarbrough
    last modified by tyler_yarbrough
  • Air flow impact on heat detector and smoke detector

    For the conventional heat detector, is it OK to be used in the room where the HVAC air flow direction is downwards(from ceiling to floor), and air flow speed no higher than 0.5m/s. The hvac outlet is installed on ceil...
    603656408
    created by 603656408
  • How to protect beverages up to 50% in alcohol content in glass bottles ?

    Hi,   I am in the process of designing a sprinkler system for a comercial warehouse in Uruguay.   Analyzing the products to be stored I´ve noticed that some of them are alcoholic beverages containtin...
    ovicente
    last modified by ovicente
  • Fire resistant cable

    In the clean agent release control system, is the fire resistant cable mandatory to be used, or fire proof cable can be OK when in steel conduit?
    603656408
    last modified by 603656408
  • Steam Boilers running on LPG in basements

    Is there any restriction to install a steam boiler running on LPG in basements? What are the available ventilation systems to prevent the accumulation of LPG in case of leak. 
    eng_mikemo
    created by eng_mikemo
  • Substation transformer Deluge system test frequency?

    What are the frequencies of testing deluge systems for transformers?   Mainly the full trip test?  If you can produce a chart just for deluge systems that would be great!   Thanks
    nathan.fraley
    last modified by nathan.fraley
  • Air separation unit: fire water demand

    Hi all! Can anyone tell me how to determine the maximum fire water flow required for the protection of an air separation unit? Thank you in advance.
    imensassitra
    last modified by imensassitra
  • Subsurface Foam Injection

    The SFPE Handbook and various vendors advise that subsurface injection of foam is not recommended for internal, floating roof tanks.  Are there any studies or incidents that support this position? Thanks
    peter@dwan.ca
    last modified by peter@dwan.ca
  • NFPA 59A distance requirement clarification

    Hello!   In NFPA 59A is there a 50 ft distance requirement from sloped LNG trenches (underneath LNG piping) to closest source of ignition such as generators, Electrical MCC equipment or Thermal oxidizers? C...
    sramanathan
    last modified by sramanathan
  • Gas train on a flare classification

    I have a straight forward flare burning methane with a NG pilot line.  Where does 497 direct me for the classification of the equipment on this line? I am new to this and would appreciate the help. TG
    tgrubb
    created by tgrubb
  • Cubic Foot Rule

    Cubic Foot Rule Good morning, NFPA 654 2020, N 9.3.13.1.1.1 notes, where an explosion hazard exists, AMSs with a dirty side volume of 8 cubic feet or greater shall be located outside of buildings or adhere to N 9.7.1...
    curtlcorum
    created by curtlcorum
  • What is the proper PPE for an HVAC Technician?

      I work for an HVAC service and installation company providing service on residential, light commercial and industrial equipment. We have acknowledged that our current uniforms are lacking in the correct level o...
    rmiller@hamstraac.com
    last modified by rmiller@hamstraac.com
  • NFPA  58 [2014]:

    I cannot find information on the presentation of plans [drawings]  for the AHJ. Thank you for your help. Mario Berrios
    cowprophet
    last modified by cowprophet
  • Does NFPA 30 apply to a class IIIA combustible liquid?

    Hello my question is regarding the applicability of NFPA 30 to a class IIIA combustible liquid. Suppose my mixture's flashpoint is at 150 degrees F. So it's not a "flammable liquid" under NFPA classification but only...
    allacademic
    last modified by allacademic
  • Flammable Storage cabinets

    Is there a code reference that prevents the storage of cardboard, paper, etc. within flammable cabinets?   I can only find the code that prevents storage of incompatible materials. Is there something more approp...
    bill.kapella@lmco.com
    last modified by bill.kapella@lmco.com
  • Ignition Sources in Appliances

    As part of our processing we shred tons of appliances.  Is anyone aware of possible ignition sources in appliances that have been shredded?  We have had a couple fires break out in these shredded piles, even...
    jdedario
    last modified by jdedario
  • We test products so sometimes we have a number of flammable aerosols.  How many can be stored on the lab bench ?

    We test products so sometimes we have a number of flammable aerosols. How many can be stored on the lab bench ?
    busbyamr
    last modified by busbyamr
  • Diesel Fuel Storage Tank Fire Protection

    In one of my project (Fiber Cement board Factory) there is diesel storage tank of 15 m3. Below are my queries:    1) What fire protection system is required for this tank as per NFPA 30 or other NFPA standa...
    abdulrafay80
    last modified by abdulrafay80
  • NFPA 496 Applied to Compressor Building

    NFPA496: This is a purge and pressurize standard that I have only ever seen applied to electrical cabinets located in Class 1 Div 2/Zone2 areas; and MCC or control rooms located within a Class 1 Div2/Zone 2 building.H...
    vginter
    last modified by vginter
  • fm200 and inert gas systems discharge test (concentration test)

    is a discharge test  requested for the fm200 and inert gas system?
    engahmed.2010
    last modified by engahmed.2010