NICET Water-Based case studies
NICET Water-Based · Put your knowledge to work in context.
Water-Based Systems Layout is one of the certification programs offered by NICET (the National Institute for Certification in Engineering Technologies) within its Fire Protection/Building Systems program family, alongside Fire Alarm Systems, Inspection and Testing of Water-Based Systems, Special Hazards Systems, and In-Building Public Safety Communications. The credential is aimed at technicians and designers who prepare and coordinate layout work for water-based fire protection systems - the drawings, calculations, and documentation that translate a design concept into an installable system. The NICET Water-Based case studies are 5 cases and about 3,850 words.
1Occupancy Change in a Shell Building: The 'Existing Sprinklers, Unchanged' Note
A 24,000 ft² single-story shell building is protected by an existing wet system designed for light hazard: 0.10 gpm/ft² over 1,500 ft² with a 100 gpm hose allowance, a 4 in. A tenant signs for 9,000 ft² of auto repair bays and expects the existing system to serve the space.
772 words, about 4 min2Dry-Pipe Conversion: The 18 psi 'Margin'
An unheated 6,000 ft² storage building is protected by a wet-pipe system calculated as Ordinary Hazard Group 1: 0.15 gpm/ft² over 1,500 ft² plus a 250 gpm hose allowance, landing at 475 gpm and 58 psi at the base of the riser. Of that 58 psi, 30 psi is piping friction loss and 28 psi is elevation, sprinkler operating pressure, and hose.
745 words, about 4 min3Warehouse Layout: Passing Spacing While Failing Area
A 100 ft by 150 ft Ordinary Hazard Group 2 warehouse has a 22 ft ceiling and a wet system, with 10 ft of Class III commodity stored on the floor - no racks, no high-piled storage. The draftsperson submits 7 branch lines spaced 14 ft 3 in.
777 words, about 4 min4An 8-Hour Shutdown in an Occupied Hospital Wing
The sprinkler system in an occupied six-story hospital wing has a 6 in. riser and 95 psi static pressure.
742 words, about 4 min5Combined Riser: The Standpipe That Never Made It Into the Calculation
A five-story office building has 60 ft of elevation from the base of the riser to the top floor landing. The system is light hazard, wet, with quick-response sprinklers, and the 4 in.
814 words, about 4 min