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nfpa 72

  1. C

    2019 NFPA and ASME 17.1 Elevator Hoitway Changes

    I am just wondering what contractors are doing or experiencing to accommodate the changes to 2019 NFPA 72 21.3.7 and ASME 17.1 2.8.2.4 that requires initiating devices in elevator hoistways be accessible for service, testing and maintenance from outside the hoistway. Are contractors using air...
  2. eyan50495

    Fire Alarms on Wood TJI Ceiling (Exposed)

    Hi All I am trying to determine the fire alarm requirement for a composite wood joist (TJI / Glulam) ceiling. Ceiling height is 12' floor to floor with 24" TJIs. Although I have an answer from the local fire alarm contractor and know that our county fire marshal points to NFPA 72, I still want...
  3. LGreene

    Emergency Control Function Interface Devices

    I don't get into NFPA 72 too much, so I'm hoping someone can help me with this question. Some access control systems for doors are required to be connected to the fire alarm system. For example, when a door has an electromagnetic lock that is released by a sensor which detects an approaching...
    • LGreene
    • Thread
    • electrified hardware emergency control function interface fire alarm nfpa 72
    • Replies: 1
    • Forum: Door & Hardware Forum
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