• Spare capacity in SLC as per NFPA 72

    Hi guys, I know that in accordance with NFPA 72, 20% spare capacity for every Loop/SLC is required? But I don't know the reference. Can anyone mention the reference if I am correct? If I am wrong please also mention it.
    abircuet2010
    last modified by abircuet2010
  • No Test Header and/or “Booster Pumps”.

    Hi there,      This is a two scenario question.  1. In an existing building with no fire pump test header, is it permissible to use Standpipe /  2 1/2” Fire Hose Cabinet valves to cond...
    bikerben
    last modified by bikerben
  • SPRINKLER TYPE FOR HIGH CEILING AREAS

    In an storage area (storage material will be plastic bottles for juice and milk) we have to provide sprinkler system. Although, the storage hazard is light but client is asking for sprinkler system. The ceiling height...
    abdulrafay80
    last modified by abdulrafay80
  • FDC Pipe Size

    Hello,    I am looking for an official interpretation regarding NFPA 13's FDC Pipe Sizing Guidelines. 8.17.2.3 gives contradictory and unclear guidance for this matter and I am in need of NFPA's interpretat...
    aten
    last modified by aten
  • NFPA 15 Question

    5.5.1.2* Steel pipe with wall thicknesses less than Schedule 30 [in pipe sizes 8 in. (200 mm) and larger] or Schedule 40 [in pipe sizes less than 8 in. (200 mm)] shall not be joined by threaded fittings. ...
    fernando_akamine
    last modified by fernando_akamine
  • Fire Panel Dialer communication

    Need to know the newest requirements on POTS line vs Radio communication for a fire panel dialer. Whats the required way that my fire panels should be using in today's requirements.
    sscheid
    last modified by sscheid
  • Sprinklers system requirement for business occupants.???

    Group B located inside (not separated from) factory building ( Group F-2). Is it required to be covered by sprinklers system??, Note that factory should be covered by sprinklers system as per nfpa101 ?  See...
    amaa93.12.awwad
    last modified by amaa93.12.awwad
  • NFPA 25; Flow Test

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    lance_ibatuan
    created by lance_ibatuan
  • Design vs Code

    In NFPA 72 does it say anything about inspecting by design or by code?
    jacobruiz89
    last modified by jacobruiz89
  • NFPA 20 - 10.5.4.2 - Automatic Shutdown After Automatic Start

    Good Day    I need an explanation of the following: 1. How the system will automatically knowns that the reasons for the starting of the pump is present or not? is it based on the closure of all valves and...
    adelash
    last modified by adelash
  • Definition of Branchline vs Cross mains

    We have been told that any branchlines that splits off to serve another another branchline supplying more than a single sprinkler is then defined as a "crossmain" and no longer is a branchline regardless of size, howe...
    rmiskie
    last modified by rmiskie
  • Deluge valve internal inspection for 60M or 5 year frequency

    #Deluge valve internal inspection for 60M or 5 year frequency   NFPA 25H 2017 13.4.4.1.4.1 Internal inspection of valves that can be reset without removal of a faceplate shall be permitted to be conducted every ...
    lapahamed
    last modified by lapahamed
  • Fire Protection system design

    Greetings all,  What's the hands-down best one-stop-shop software for the design of fire protection systems and why your choice?
    kirthandreregis
    last modified by kirthandreregis
  • Foam Sprinkler Test connection

    Dear all ,    Good Day ,    one of the ongoing project , i have to provide a test connection for periodic inspection in Foam sprinkler system main riser after the proportioner. my basic...
    ashikpn
    last modified by ashikpn
  • Jockey Pump Controller Listing

    Hi guys, Please have a look at NFPA 20 (version 2013) article, 4.25.5 Piping and Components for Pressure Maintenance Pumps: So, the jockey pump controller shall be listed or not? to me, those lines seem self-confl...
    abircueteee09
    last modified by abircueteee09
  • Pipe Size - Hydraulic Calculation

    Dear All, Is it possible to use DN150 pipe size for the sprinkler over 275 pcs of sprinkler by using Hydraulic Calculation? Hazard Classification is Ordinary.    Can you please share any reference fro...
    kvusal85
    last modified by kvusal85
  • Storage with 3:12 Pitch Roof

    I have a customer who ordered a premanufactured steel building.  This building is for the storage of solid timber (Class III) commodity, stored in an unheated building 112' X 310'.  The slope of the cei...
    scottbrannen
    last modified by scottbrannen
  • Hydrant pump Calculation

    Please explain anyone here how do we have to calculate fire hydrant pump capacity. I have one project here total 26 nos fire hydrant and small house like a resort more than 100 rooms with sprinkler system protection. ...
    uppili.mlr
    last modified by uppili.mlr
  • Definition of Compartment

    Hello,    Definition of Compartment from 2016 NFPA 13 and 13R: A space completely enclosed by walls and a ceiling. Each wall in the compartment is permitted to have openings to an adjoining space if th...
    jsalazar@alhambrafire.org
    last modified by jsalazar@alhambrafire.org
  • Determining of Design Area in Hotel Building

    Hi,       i need expert opinion on subject mentioned, I m working in MEP contracting company as a mechanical engineer, I need to perform fire sprinkler hydraulic calculation for one of our pr...
    alisaif2012
    last modified by alisaif2012