NICET WBSL Level III case studies

NICET WBSL Level III · Put your knowledge to work in context.

NICET Water-Based Systems Layout is one of the Fire Protection/Building Systems certification programs listed on nicet.org, alongside Fire Alarm Systems, Inspection and Testing of Fire Alarm Systems, Inspection and Testing of Water-Based Systems, and Special Hazards Systems. Level III is the third step in that layout track, aimed at technicians who already handle routine sprinkler and standpipe layout work and are moving toward leading design packages, coordinating with authorities and other trades, and checking the work of others. The NICET WBSL Level III case studies are 5 cases and about 4,612 words.

Hotel Combined System: Supply-vs-Demand at the Riser Base

A 5-story, 120,000 sq ft hotel (light hazard throughout, residential-style guest floors) is being laid out with a combined wet sprinkler and Class I standpipe system fed from a 6 in. The only water supply data is a hydrant flow test at the tap: static 68 psi, residual 40 psi while flowing 1,150 gpm.

900 words, about 5 min 2

ESFR Swap in an Existing Warehouse With an Overhead Duct

An existing 180,000 sq ft single-story warehouse has a K-8.0 CMDA wet system designed for Ordinary Hazard Group 2 at 0.20 gpm/sq ft over 1,500 sq ft, with 10 ft by 10 ft spacing, 2½ in. branch lines and a 6 in.

978 words, about 5 min 3

Dry Pipe System That Takes Over Two Minutes to Trip

An unheated 60,000 sq ft distribution warehouse is protected by a dry pipe system: 4 in. main roughly 500 ft long, 2 in.

950 words, about 5 min 4

14-Story Standpipe: Pump Selection and Lower-Floor Overpressure

A 14-story building, 175 ft from grade to the topmost 2½ in. hose valve, is protected by a combined automatic sprinkler and Class I standpipe system.

868 words, about 4 min 5

Mezzanine Retrofit: Coverage Below, Density, and Storage Clearance

A 90,000 sq ft light hazard office building has an existing wet system at 0.10 gpm/sq ft over 1,500 sq ft, K-5.6 pendent sprinklers, 12 ft by 12 ft spacing, an 18 ft ceiling, and deflectors 17 ft 6 in. A tenant adds a 2,400 sq ft mezzanine with its walking surface 8 ft above the floor and open bar grating, served by a stair.

916 words, about 5 min