NTC Blog

  • Code Question - Device Blocking

    Code Question - Device Blocking

    Thu, Nov 12 2020 at 12:00 AM

    Q & A

    Code Question – Is there language in the code that specifically prohibits blocking a fire alarm device (like a horn/strobe or pull station) with a bookcase?
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  • NICET Work History Documentation Requirements

    NICET Work History Documentation Requirements

    Fri, Oct 30 2020 at 12:00 AM

    NICET Training

    Providing NICET with sufficient and appropriate work history documentation is the most common reason for certification being denied after the exam has been passed.
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  • Beam and Joists

    Beam and Joists

    Fri, Oct 23 2020 at 12:00 AM

    Low Voltage

    When a ceiling surface has solid projection more than 4 inches, the distance between the projections center to center determines whether the projection is a joist or beam.
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  • Positive Alarm Sequence and Presignal Systems

    Positive Alarm Sequence and Presignal Systems

    Thu, Oct 8 2020 at 12:00 AM

    Low Voltage

    Positive alarm sequence and presignal systems delay occupant notification to allow for time for investigation of a fire. While both systems delay occupant notification, the function of the features and where they are permitted...
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  • Sleeping Area Audible Notification Requirements

    Sleeping Area Audible Notification Requirements

    Wed, Sep 30 2020 at 12:00 AM

    Low Voltage

    Audible notification requirements in sleeping areas were changed in the 2013 edition of NFPA 72. The 2010 edition first stated that as of January 1, 2014, audible notification appliances in sleeping area would be required...
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  • Nonrequired Fire Alarm Systems

    Nonrequired Fire Alarm Systems

    Fri, Sep 25 2020 at 12:00 AM

    Low Voltage

    A nonrequired fire alarm system must be designed and installed to meet all applicable requirements, and the design intent is required to be documented.
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  • Code Question – Network Smoke Detection

    Code Question – Network Smoke Detection

    Thu, Sep 17 2020 at 12:00 AM

    Q & A

    Code Question: “Does the Annex A recommendation for locating a smoke detector not closer than 3 feet from a supply or return air opening also apply to air-sampling network smoke detection?”
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  • Operating Mode

    Operating Mode

    Thu, Sep 10 2020 at 11:00 AM

    Low Voltage

    Notification appliances provide notification to individuals in a protected building by providing audible or visible notification. The specific individuals intended to be notified by the notification appliances determines...
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  • Slope Ceilings

    Slope Ceilings

    Wed, Sep 2 2020 at 12:00 AM

    Low Voltage

    Ceilings have a direct impact on detector spacing and location. This impact directly affects smoke and heat detectors, so an understanding of ceilings and their impact is a critical aspect to fire alarm design.
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  • Code Question – Household Applications

    Code Question – Household Applications

    Wed, Aug 26 2020 at 12:00 AM

    Low Voltage

    Code Question: What are my options for fire alarm household applications
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