• Electrical Equipment Bldgs + Sprinklers required???

    I need some clarity on the subject of sprinkler requirements for Electrical Equipment Rooms.   NFPA 13 Section 9.2.6:  Sprinklers shall not be required in electrical equipment rooms where all the follo...
    last modified by sriley123
  • Bi-Directional Amplifiers

    If anyone has a suggested operating guideline, flow chart or checklist on BDAs that they could share with me, please forward it to sdube@hudsonnh.gov, and thank you in advance. Steve
    last modified by sdube
  • Commodity Classification for alcohol impregnated cloth or paper wipes

    What is the correct commodity classification for alcohol wipes/impregnated cloths using 70% Isopropyl alcohol  in foil or paper individual packs, as continuous rolls with perforated sections in plastic ...
    created by kraftfire
  • Max. height from floor of sprinkler heas

    I'm design a terminal OH2 and height of sprinkler head in one part of grid is up to 9.7 m! How can I proceed? May be to upgrade at HH1?
    last modified by niko
  • how to find information

    How can I find out which state adopted NFPA 72 as state law?
    last modified by shion.kanai
  • Miscellaneous storage NFPA 13:2019

    Dear all. I am confused about miscellaneous storage in NFPA 13:2019. For example: For OH2, article 4.3.4 states that I can have "stockpiles of moderate to high combustibility that do not exeed 12ft". It does not give...
    created by sdk

    BUENAS NOCHES, en que articulo de NFPA 70 u otro se indica el tipo de material (metalico / no metalico / otro) para los tubos portacables de alarma y deteccion de un sistema contra incendios ?
    last modified by jcsalas
  • Clean Agent System, minimum distance of support to the nozzles.

    Hello everyone, I would like to ask your opinion pertaining to the requirements of the minimum required distance of pipe supports from the discharge nozzle of a Clean agent system particular to FM200. I check with the...
    last modified by vincent_balbuena
  • NFPA 2001 - about Fittings

    Dear Sir or Madam,   We have question about NFPA 2001. Refer to NFPA 2001 (edition 2018) (As attached) for "Fittings shall have a minimum rate working pressure equal to or greater than the minim...
    created by pracha.p
  • NFPA-55-Table 6.2.1 Design and Number of Control Areas

    Dear NFPA members I have following question on NFPA-55-   As per Table 6.2.1 Design and Number of Control Areas, it indicates that it is only allowed to have 4 Control Areas per floor per building.  In case...
    last modified by mahakalkarsv
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    last modified by mahakalkarsv
  • Foam sprinkler system Design

    Dear all ,    Sub : Foam sprinkler system Design:    one of my ongoing project , Foam water sprinkler system is required to protect the generator area of 675 square meter . as per NFPA 16 ,Design...
    last modified by ashikpn
  • Fire Pump Acceptance Test

    In NYC the Code Reference is NFPA 20-2007 for Fire Pump Acceptance. As per sec requires 150% of rated capacity of the pump. This is normally done at a test connection at the ground level. I witness a test t...
    last modified by tdelorenzo
  • All The new buildings in USA requires 10 years non-replaceable smoke alarm?

    All The new buildings in USA requires 10 years non-replaceable smoke alarm?   
    last modified by ankasales3
  • What is the concept of "Addition to existing light hazard system from NFPA 13 Chapter 9"?

    We built a new hotel and connected it to the existing hotel. The new hotel has its own fire pump and distribution line. The existing hotel has standard response sprinklers.   Can we adopt 9.4.3 (5) and install...
    last modified by harry.calabia
  • Home Ec Room Hazard

    What would the hazard occupancy be for a Food & Nutrition Lab or Home Economics room in a K to 12 school?  The appliances are all electric and there is no fuel fired appliances in the building.  The rang...
    last modified by sugi
  • Standpipe  hydraulic calculation

    When you have a Class I standpipe system with four additional required standpipe riser in each exit stair way, you will have 500 GPM for the first two hydraulically remote outlet of standpipe plus 250 GPM each for the...
    last modified by schoi
  • Is kitchen hood suppression system required for all kitchen hoods, irrespective of the appliance as per NFPA?

    Is kitchen hood suppression system required for all hoods, irrespective of the appliance as per NFPA?   In our project, there is no cooking area like in restaurant. There are only Rational oven, chicken grill ma...
    last modified by artic
  • Do we need fire sprinklers in every room of hospital ?

    there should be expensive equipment in some rooms.
    last modified by matep
  • NFPA 55 - Table Maximum Allowable Quantity (MAQ) of Hazardous Materials per Control Area

    Dear Member , Our question is as follows- As per NFPA 55 - Table Maximum Allowable Quantity (MAQ) of Hazardous Materials per Control Area, it indicates the MAQ of storage for Compressed  Flammable gas an...
    last modified by mahakalkarsv