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Nfpa 72 audibility requirements Form: What You Should Know
Sound Pressure Level (SPL) for outdoor audible alarm notification appliances: 1.1 of the 8.10 of the National Fire Alarm and Emergency Notification Code. Sound Pressure Level For Outdoor Alarm (SPL) For Outdoor Alarm For alarm notification, sound and/or voice notification, a. For indoor and outdoor audible alarm notification appliances, a minimum sound pressure level (SPL) of 16 hours is needed for each 1 square foot of protected property located on an average residential, commercial or institutional lot, including exterior wall openings and balconies. b. As provided in NFPA 72, 1 of 4, the sound pressure level (SPL) of the equipment may be changed to 15 decibels in the emergency notification service area that includes all commercial, industrial, and institutional buildings and structures, and all dwelling units not used as residences located directly adjacent to an emergency notification service area or the immediate vicinity of an emergency notification service area, which are maintained in accordance with the requirements in this standard and by the owner. Sound Pressure level change. (DBA) of the alarm notification service area Cautions 1 1. The sound level of alarm notification systems used to provide information or notify the public of a fire should not exceed 15 decibels and should be carefully and monitored to ensure compliance. 2 3. Sound notification systems used in commercial buildings, including parking facilities or garages, should be protected from inadvertent activation or deactivation by fire. 4 7. Sound notifications can be hazardous for persons with hearing impairments, and can cause annoyance or distraction to others. FIRE ALARM COMMUNICATION 1. This emergency notification service applies to all types, and requires all alarm systems to be installed in accordance with NFPA 72, as well as NFPA 72: National Fire Alarm and Signaling Code. 2. This emergency notification service requires that each alarm system that is capable of sound/voice notification provide and maintain audible alarm notification capabilities. 3. This emergency notification service requires that all alarm systems not include an audible alerted. 3.1 of the 2022 edition of NFPA 72 require that alarm notification systems require all of their alarm signals to be capable of being transmitted through the building by mechanical means. See Chapter 1, Section 8 of NFPA 72. 3.2.
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