Fire Alarm
We've started seeing more rejections on duct detector placement from our local AHJ. They're citing NFPA 72 section 17.7 more aggressively and rejecting installs that were passing 5 years ago. For tho...
Have a building with Notifier NFS-320 panel and a mix of FSP-851 and FSP-851T detectors. Getting sporadic dirty detector troubles — about 6 detectors across 3 floors, mostly in the warehouse area with...
Going through the 2022 NEC cycle changes for the first time on a hospital job. The mass notification section in Chapter 24 has been updated significantly. AHJ is asking us to document compliance with ...
EST3 panel, Class B initiating circuit, spec resistance from the panel manual is 30Ω nominal. Current reading is 47Ω. No trouble condition, the panel hasn't generated a fault. At what resistance devi...