This quick permit is to relocate two existing speaker/strobes and add two new strobe only devices to accomodate a tenant remodel. Approval is subject to field measurement of the EOL voltage drop. For appliances with an operating voltage range of 16V – 33V, the minimum acceptable voltage is 19.6V with the AC power off. Any measurement below this voltage will be considered insufficient to run the NACs at the end of useful battery life of 20.4V (per UL 864, Standard for Control Units for Fire Signaling Systems). See NFPA 72 2010 Handbook 18.3.2.3 for further assistance with calculations. The installing contractor shall have available at final inspection a voltage meter and measure end of line voltages; witnessed by the field inspector. Wall-mounted visual notification appliances shall be mounted such that the entire lens is not less than 80 inches and not greater than 96 inches above the finished floor or at the mounting height specified using the performance-based alternative of 18.5.4.5. 2010 NFPA 72 18.5.4.1.
Room spacing of visual notification appliances shall be in accordance with either 2010 NFPA 72 Table 18.5.4.3.1(a) and Figure 18.5.4.3.1 or Table 18.5.4.3.1(b). 2010 NFPA 72 18.5.4.3.1. There are no written review comments. Associated building permit: BLD12-01411.