• seismic for life safety suppression system with 1.5 component importance factor in category. B

    Do I need seismic support for a fire life safety sprinkler suppression system in a category B building, when the component importance factor is 1.5 as referenced in ASCE 7 section 13.1.3 Refer to the attachments belo...
    jakidd
    created by jakidd
  • FIRE HOSE REEL

    Hi  What is the standard size and length of Fire Hose Reel or Class II Hose Reel System? Where exactly is this mentioned in NFPA standard?   As per my knowledge Fire Hose Reel standard is 25mm dia and 30mt...
    josephjojoadoor
    last modified by josephjojoadoor
  • 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
  • Foam chamber in geodesic dome tank roof

    Is it possible to install foam chamber in geodesic dome tank roof  (witn internal floating roof) instead of foam chamber in shell tank?? I have not found something about in NFPA 11. What criteria I should take i...
    mignot
    last modified by mignot
  • FM200 System - Nozzle Consideration For Multi heights

    Dear All  ,    Subject : Clean agent system ( FM200 Gas ) Nozzle Location In multi height area of Enclosure    Good Day ,    Enclosure having multi heights in the FM200 System pro...
    ashikpn
    last modified by ashikpn
  • 2011 NEC Question

    210.60 Guest Rooms, Guest Suites, Dormitories, and Similar Occupancies.   (A) General. Guest rooms or guest suites in hotels, motels, sleeping rooms in dormitories, and similar occupancies shall have receptac...
    chiefns830
    created by chiefns830
  • Can a building owner remove a fire pump?

    I have a building owner that has a 38 year old fire pump that only supplied two standpipes in a 4 story apartment building. It did not supply sprinklers. About 10 years ago we removed the hoses and appliances in the b...
    m69421
    last modified by m69421
  • metallic conduits for pv under roof sheathing

    In search of any reference to installing residential pv system and fastening metallic conduit to and distance required from underside of wooden roof sheathing.
    mkidwell
    last modified by mkidwell
  • Provide your insight to NFPA's wildfire preparedness and management standards

    One of the most notable features about NFPA standards is that their development process is open and consensus-based.  That means anybody can participate in the development of these important documents and the sta...
    luciandeaton
    last modified by luciandeaton
  • Review the First Draft Reports to submit comments on 11 of the Emergency Response and Responder Safety (ERRS) Standards in a custom Annual 2021 revision cycle

    The First Draft Reports for 11 of the NFPA Emergency Response and Responder Safety (ERRS) Standards in a custom Annual 2021 revision schedule are available. Review the First Draft Reports for use as background in the ...
    debbiebaio
    last modified by debbiebaio
  • Bonding of an NFPA 13 System

    The building inspector is requiring an NFPA 13 sprinkler system to be bonded based on the 2017 NEC Section 250.104  Has anyone else run across this?  Here is what both sections state. Thank you, 8.18 El...
    cox
    last modified by cox
  • Door and Frame Fire-Rated Labels

    If a door frame carries a 20-minute label, does the door itself have to match that, or can it exceed that?  In other words, if the frame has a 20-minute label, does the door have to also have a 20-minut...
    cpierce@sc-architects.com
    last modified by cpierce@sc-architects.com
  • PODCAST: New NFPA Podcast episode details sprinkler retrofit project and home fire sprinkler incentives

    In a popular scene from the 1993 Halloween comedy flick Hocus Pocus, one of the characters holds a lighter up to a sprinkler head, causing several of them to go off at once. Fire sprinkler experts will ...
    averzoni
    last modified by averzoni
  • RFP Now Open for FPRF Project: Performance Criteria for Aircraft Hangar Fire Protection Systems

      Request for Proposals are now open for the Fire Protection Research Foundation (FPRF) research project to study Performance Criteria for Aircraft Hangar Fire Protection Systems. NFPA 409, Standard on Aircraft ...
    sranganathan
    last modified by sranganathan
  • Powder addition to flammables tank

    Hi,  I'm in a situation with a process that requires addition of powder to a 250L tank that contains ethanol. About 5 kg of powder is added, in 1kg batches. The issue I have is that the powders are weighed and di...
    rrousseau
    last modified by rrousseau
  • Adding units to an Existing Apartment Building

    We have a project in the exploration phase that is asking if they can transform an unused third floor/attic space in an Existing Apartment Building without adding sprinklers. They will meet all the other requirements ...
    rfdacm02
    last modified by rfdacm02
  • Video: NFPA's Guy Colonna discusses ammonium nitrate safety after Beirut explosion

      Yesterday's explosion in Beirut, Lebanon, has left at least 100 people dead and thousands more injured. Multiple news sources are now saying the blast, which could be heard from 150 miles away, was due to larg...
    averzoni
    created by averzoni
  • Number of chamber in vertical storage tanks

    Hello. A customer of mine is asking me to increase the number of foam chamber in a vertical storage tank, using 4 foam chambers instead of 2 required per NFPA 11 and the manufacturer recommendation, using the same tot...
    jfacevedob
    last modified by jfacevedob
  • NEC 2020 not available in PDF!

    It is extremely disappointing that unlike NEC 2017 and its handbook, the NEC 2020 edition and its handbook are not available in PDF format that you can store on your computer as a digital resource and access it a...
    nikunj.shah
    last modified by nikunj.shah
  • Technical Background of the fire pump test

    Hi, I'm looking for the technical background of the annul test condition of the fire pumps. Especially, Why do I need to do the fire pump test under 150% of the rated capacity flow. If someone has the information ab...
    j.k.park
    last modified by j.k.park