NTC Blog: Low Voltage

  • 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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  • 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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  • The Three W’s of Fire Alarm

    The Three W’s of Fire Alarm

    Fri, Aug 14 2020 at 12:00 AM

    Low Voltage

    Meeting the minimum standards set forth by the codes ensures compliance and provides an appropriate level of life safety.
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  • Code Changes – NFPA 72, IBC, and NFPA 101

    Code Changes – NFPA 72, IBC, and NFPA 101

    Fri, Jul 31 2020 at 12:00 AM

    Low Voltage

    If you are a NICET test taker, your focus is on specific editions of the codes that are used in the exam. In the real world, your AHJ may be using these code editions, or they may be using the newer editions.
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  • How to be Successful Selling Fire Alarm Systems

    How to be Successful Selling Fire Alarm Systems

    Thu, Jul 23 2020 at 12:00 AM

    Low Voltage

    With the explosion of residential DIY security solutions, numerous alarm dealers are looking elsewhere for opportunities grow. Commercial fire alarm system sales are a natural migration path with few barriers to entry.
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