NICET, which stands for National Institute for Certification in Engineering Technologies, was introduced in the year 1961 by a handful of highly learned technicians who strived to help people excel in various technical and engineering fields. Certifications are issued to… Continue Reading
Can fire alarm cables be installed exposed? The answer to this question is not as straight forward as one may think. Fire alarm cables (Power-Limited) can be installed exposed (not in raceway) as long as it is protected against physical… Continue Reading
The requirements for manual pull stations as per NFPA 72 are pretty trivial and straight-forward. NFPA 72 requires that manual pull stations be installed within 60 inches of the exit doorway of each exit, mounted between 42 inches and 48… Continue Reading
What are the requirements for spacing of smoke detectors installed on ceilings with beam pockets? The picture below is smoke detectors within beam pockets in a building being renovated. The ceiling height is roughly about 25 feet and the beam… Continue Reading
Can a duct-type smoke detector be installed outdoors? NFPA 72 allows smoke detectors to be installed outdoors as long as the detector is listed and designed for the expected conditions. When installed outdoors, the detector should be rated within the… Continue Reading
Below we have a picture of a return duct for an air handling unit in a high-rise office building. Because the duct work is wider than 36 inches, the sampling tube is penetrating the duct work. As per NFPA 72… Continue Reading
What are the requirements for supporting EMT (Electrical Metallic Tubing) when using it to install fire alarm cabling? The requirements for supporting EMT is the same as if installing 120V wiring. The NEC requires that EMT be supported withing 3… Continue Reading
NFPA 72 states that the Fire Command Center is “The principal attended or unattended location where the status of the detection, alarm communications, and control systems is displayed and from which the system(s) can be manually controlled. ” Below we have a Fire… Continue Reading
Is it required for a commercial kitchen fire suppression system to be monitored by the fire alarm system? A commercial kitchen fire suppression system works when either a cable is pulled (manually), as the video shows below, or with a… Continue Reading
Below we have a video of doors releasing upon activation of smoke detectors within the vicinity of the doors. The purpose of such action (release doors) is to help ensure the doors close to prevent smoke from spreading to other… Continue Reading
