Featured Articles

  • MEET THE APPRENTICES

    MEET THE APPRENTICES

    NAC Finalists Take Center Stage at AFSA44 Seven of the nation’s top apprentices will compete in the …

  • Raise Your Voice for Safety

    Raise Your Voice for Safety

    We’re sharing this announcement from NFPA regarding their unprecedented public awareness campaign to…

  • #MEMBERSMATTER!

    #MEMBERSMATTER!

    In today’s competitive business environment, success in the fire sprinkler industry isn’t just about…

  • FIRE PREVENTION WEEK THEME ANNOUNCED 

    FIRE PREVENTION WEEK THEME ANNOUNCED 

    “Charge Into Safety™: Lithium-Ion Batteries in Your Home” The National Fire Protection Association® …

  • SWINGING FOR A CAUSE

    SWINGING FOR A CAUSE

    31st Annual Burn Survivors Foundation Golf Tournament Raises Thousands for Its Charities  Under…

Obstruction Rules for CMSA Sprinklers

Obstruction Rules for CMSA Sprinklers

Some Parts are Missing The 2010 edition of NFPA 13, Standard for the Installation of Sprinkler Systems, introduced a new definition “Control Mode Specific Application (CMSA) Sprinklers.” This was a composite of the earlier definitions that included Large Drop Sprinklers, Special Sprinklers, and Specific Application Control Mode Sprinklers. The Section …

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