• Help needed in research of an eco-friendly extinguishing agent.

    Hello dear community!   I've come here in a quest to at least lay the basis of a future research on the topic of eco-friendly firefighting foams. As you all know the typical types of firefighting foams are ...
    hary_stefanov
    last modified by hary_stefanov
  • Residential Appliances in Business/Assembly Occupancy

    Can residential appliances like an electric range or wall oven be installed in a resident activity/craft kitchen of a building with a business or assembly occupancy without needing to meet NFPA 96 for Commercial ...
    kotten
    last modified by kotten
  • Hazardous Areas

    I'm looking for a digital version of "Electrical Installations in Hazardous Areas" 3rd ed or later; Authors Schram/Beneditti/Earley. I have a hard copy, but with with all the remote work happening it's hard  to s...
    budd.hipp
    last modified by budd.hipp
  • 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 850 "Outdoor Oil-Insulated Transformer Separation"

    Referring this clause "NFPA 850 5.1.4.3* Unless consideration of the factors in 5.1.4.2 indicates otherwise, it is recommended that any oil-insulated transformer containing 500 gal (1893 L) or more of oil be separated...
    rhedluc
    last modified by rhedluc
  • Sulphur conveying system

    Hi I have been working in 1 project about conveying system for Sulphur in Sulphonation plant. I have been checking for some information about assessment due to combustible dust / flameable gas due to this work. I ...
    nfpaunilev
    last modified by nfpaunilev
  • NFPA-33-18 exhaust fan operation during fire condition

    Hello, I have been selling and installing Industrial Spray  booths for quite sometime. it has always been that in the event of a fire condition either in  the booth or elsewhere in the building and the ...
    gnmager
    last modified by gnmager
  • 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
  • What is the maximum length a hose can be for dispencing a class II (Diesel Fuel)?

    What is the max length the hose can be from the tank to the nozzle? The 120 gallon AST is only used to fuel support vehicle (forklift) at a marina.   Fire Inspector Baker Orleans Fire Department
    gbaker
    last modified by gbaker
  • Does attaching a snow plow to a 100LL aircraft refueler vehicle violate any fire regulation codes?

    I have this suspicion that attaching a snow plow to an aircraft refueler truck is not permitted, especially at a federally funded airport. It just sounds like a bad idea to put something that can create sparks on a ve...
    john3
    last modified by john3
  • 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
  • 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
  • ¿PIRÓMANOS O INCENDIARIOS?

    hmc
    created by hmc
  • 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