AL Fire Alarm case studies
AL Fire Alarm · Put your knowledge to work in context.
The Alabama Fire Alarm License Exam is the credentialing assessment tied to fire alarm licensure through the Alabama Electronic Security Board of Licensure (AESBL). AESBL describes its mission as protecting Alabamians by licensing home security companies and locksmiths in the state, and it publishes applicant, licensee, and consumer resources including license applications, forms and notices, approved certification courses, renewal procedures, approved continuing education courses, and a searchable list of licensed companies and individuals. The AL Fire Alarm case studies are 5 cases and about 3,389 words.
1NAC Voltage Drop on a Long Horn/Strobe Run
You are commissioning a new notification appliance circuit in a 260 ft-long warehouse corridor. The panel lists the NAC as 24 VDC regulated, rated 3.0 A maximum, with a 0.6 V maximum line drop allowance.
650 words, about 3 min2Ground Fault That Only Appears Under Load
A contractor calls you to a 40-unit assisted-living facility where the fire alarm control panel intermittently shows a ground fault trouble that clears on its own within minutes. The trouble appears mostly in the late afternoon and correlates with the building's HVAC cycling.
727 words, about 4 min3Battery Sizing for a 24-Hour Standby With 5-Minute Alarm
You are designing the secondary (battery) power for a new 24 VDC addressable panel serving a small office building. The panel's published standby current is 0.180 A and its alarm current is 0.520 A.
677 words, about 3 min4Owner Wants to Skip the Permit and Use a Handyman
A restaurant owner hires your licensed fire alarm company to add four horn/strobes and one pull station to an existing system after a remodel. During the site visit the owner says a handyman relative will do the wiring to save money, and asks whether the work really needs a permit and inspection since it is 'just adding a few devices to an existing system.' The owner also mentions the building passed its last inspection two years ago and wants the new work done before a grand reopening in ten days.
658 words, about 3 min5Smoke Detector Keeps Tripping - Nuisance or Real Problem?
A tenant in a 12-unit apartment building calls every few weeks to report that the hallway smoke detector outside unit 4 'goes off for no reason,' usually in the evening. The building has a conventional system with 2-wire smoke detectors on the hallway circuit.
677 words, about 3 min