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    Household Fire alarm systems

    I was reading the article which says that dewelling units may have one of the two things: smoke alarm or smoke detection system:

    Link: https://iaeimagazine.org/magazine/20...ms-in-the-nec/

    "...
    Household Fire Alarm Systems

    Some homes might not have smoke alarms installed as this article is addressing. Provisions in Section R314.2 of the*IRC*addresses smoke detection systems. This type of system is installed and governed by NFPA 72. It is typically a permanent fixture of the occupancy and is owned by the homeowner. The system is monitored by an approved supervising station in the event of a fire so that the proper authorities are alerted.

    This system shall provide the same level of protections afforded by smoke alarms. An exception to this type of system exists smoke alarms installed meeting the requirements concerning power provided by a premise wiring system with battery backup and other requirements found at R314.4..."

    What is the difference between standard smoke alarm dewelling unit and smoke detection systems? And do these system require arc flash circuit protection per NEC 2014?

    Sent from my SM-G935U using Tapatalk

    #2
    Originally posted by hhsting View Post
    I was reading the article which says that dewelling units may have one of the two things: smoke alarm or smoke detection system:

    Link: https://iaeimagazine.org/magazine/20...ms-in-the-nec/

    "...
    Household Fire Alarm Systems

    Some homes might not have smoke alarms installed as this article is addressing. Provisions in Section R314.2 of the*IRC*addresses smoke detection systems. This type of system is installed and governed by NFPA 72. It is typically a permanent fixture of the occupancy and is owned by the homeowner. The system is monitored by an approved supervising station in the event of a fire so that the proper authorities are alerted.

    This system shall provide the same level of protections afforded by smoke alarms. An exception to this type of system exists smoke alarms installed meeting the requirements concerning power provided by a premise wiring system with battery backup and other requirements found at R314.4..."

    What is the difference between standard smoke alarm dewelling unit and smoke detection systems? And do these system require arc flash circuit protection per NEC 2014?

    Sent from my SM-G935U using Tapatalk
    Smoke alarms are stand alone units, Smoke alarm systems are complete systems as you already described, some manufacturers are Simplex, Edwards, Notifier, etc..., as far as the AFCI question, see the exception after 210.12(A)(6)

    Roger
    Moderator

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      #3
      Is MIC1509S Universal System such as this: https://www.google.com/url?sa=t&sour...DqGHq5sF5c5Fn6

      require Arc flash protection or this is an exception to arc flash protection?

      Sent from my SM-G935U using Tapatalk

      Comment


        #4
        Originally posted by hhsting View Post
        Is MIC1509S Universal System such as this: https://www.google.com/url?sa=t&sour...DqGHq5sF5c5Fn6

        require Arc flash protection or this is an exception to arc flash protection?

        Sent from my SM-G935U using Tapatalk
        Did you read the "short description" in the link?

        Roger
        Moderator

        Comment


          #5
          Originally posted by hhsting View Post
          Is MIC1509S Universal System such as this: https://www.google.com/url?sa=t&sour...DqGHq5sF5c5Fn6

          require Arc flash protection or this is an exception to arc flash protection?

          Sent from my SM-G935U using Tapatalk
          Also attached MIC1509S spec sheet if problem with link.

          Also manufqcturer link that has spec link: https://www.universalsecurity.com/co...509S#more-info

          Looks like smoke alarm not household smoke detector as article mentions. So I guess Arc Flash protection is required.
          Last edited by hhsting; 07-14-19, 11:58 AM.

          Comment


            #6
            Read the short product discription, note the last word in the sentence.

            Roger
            Moderator

            Comment

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