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2015 IFC Section 507.2.1 and NFPA 24 definition of "private"fire service main.

Discussion in 'Commercial Fire Codes' started by khsmith55, Feb 5, 2020.

  1. khsmith55

    khsmith55 Bronze Member

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    4 Story Apartment Building, NFPA 13 Sprinkler System, Type VA Construction. Reference 2015 IFC, Section 507.2.1 and NFPA 24 (2013 and 2019 Editions). Could someone please provide me with a definition of a private service main (is there a definition in NFPA 24) as opposed to a "public" service main. The water/fire supply is provided by the Municipal Water Authority (which I might consider a "public" service, not a "private"). The Plan Reviewer has referenced 2019 NFPA 24 Section 10.4.3.1, the "adopted" Edition is the 2013 (IFC Chapter 80) which I can not find a similar reference to.
    Thanks in advance for your help.

    Ken
     
  2. cda

    cda Sawhorse

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    I would say private/ public is in the eye of the beholder.


    In our city the city owns all water mains, fire hydrants.

    Where a tap is made for the fire sprinkler main only, that is private.

    Other cities I have worked in,,, once it crosses the property line everything is private, mains and fire hydrants.
     
  3. cda

    cda Sawhorse

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    So with all that said


    What does the plan reviewer want you to do??
     
  4. khsmith55

    khsmith55 Bronze Member

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    Update, having read the definition in NFPA 24 it appears once the water service (domestic or fire) crosses the lot line it is a "private service line". The ME has indicated the service entering the building on the opposite side of the mechanical room (40' away, > 10' permitted). Looking at options now. Run the fire line "around" the building or run the fire line in an open trench for the 40' through the building or find a reasonable alternate location for a riser room. Thanks for all the help.

    Ken
     
  5. RLGA

    RLGA Sawhorse

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    From NFPA 24 (2019 edition):

    3.3.13 Private Fire Service Main. A private fire service main, as used in this standard, is that pipe and its appurtenances on private property that is between a source of water and the base of the system riser for water-based fire-protection systems; between a source of water and inlets fo foam-making systems; between a source of water and the base elbow of private hydrants or monitor nozzles; and used as fire pump suction and discharge piping, beginning at the inlet side of the check valve on a gravity or pressure tank.​
     

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