• Can we calculate fire water requirements for a hydrocarbon well drilling site/rig site?

    Drilling rigs usually have their own fixed water spray system but how can we, as a client ensure that it is sufficiently designed? Secondly, is there a requirement of any additional firewater inventory to cool down th...
    mussarat7
    last modified by mussarat7
  • NFPA 86 Exlosion Relief Requirement Exceptions

    Hello,  I am looking for information on how to take exception to NFPA 86 explosion relief requirements for Class A & B Natural Gas fired Ovens. My situation: I have an oven that cannot physically meet the 15 ...
  • How to size the Explosion Reliving Device for Starch Siloes

    Hi, I would like to know the requirements and equations I need to use based on NFPA codes, to : 1) Size the Explosion relieving Devise , i.e., Explosion Panel or Explosion Hatch for Starch Siloes used in Pulp& Pap...
    reza.sabet
    created by reza.sabet
  • Recommendations for separation distances between outdoor transformer and buildings

    Hello Everybody,   One of our application transformer was located very close to control building. We are not able to keep required safety distance from transformer to the control building. So, we are looking...
    bcelikel
    last modified by bcelikel
  • How can calculate Header Pipe Dimension?

    Hi I have a question about collectors piping at spray system fire fighting.  actually, we have a collector at piping with many outlet of it and I want to understand about calculation of them please follow un...
    yousef
    last modified by yousef
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • NFPA59-2019 Response modification Factor

    NFPA 59-2019 edition page 31, section 10.2.2.1 second para (2)  has changed the value of Rp=3, which was 6 in the previous edition. This doubles the seismic force. Is there any reson for this change. As per ASCE-...
  • 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
  • NFPA 496 Question

    NFPA 496 Question Using a purged enclosure with general purpose equipment in a CL1 Div 2 area . If the equipment brings a combustible liquid into the purged enclosure can you use air for the purge? Would an inert p...
    kpenson
    last modified by kpenson
  • Hazardous Waster Storage

    Is there a space or building size requirement for hazardous waste that is stored onsite?  If so, where can I find more information on this topic?
    jwaite
    last modified by jwaite
  • Is it safe to make wet blasting on the top of crude oil floating roof tank

    if its not safe where i can find this issue from NFPA
    mohammedelassall
    created by mohammedelassall
  • shell to shell spacing

    there is a methanol storage facilities; 4 double roof tank will be constructed in common dike area with clock wise arrangement  and diameter of   each tank is supposed to be 55 meters. based on Nfp...
    b.jabarzade
    created by b.jabarzade
  • Standard Development for Ammonia, Chlorine and Carbon Monoxide Detection and Notification

    I am inquiring if there is any standard development regarding detection of ammonia ( ice rinks) chlorine ( swimming pools) and carbon monoxide (not in residential). Normally pools and arenas have a substantial occupan...
    d_rydall
    last modified by d_rydall