Los Angeles Municipal Code Div. 20 Fire Protection Systems

(Division amended by Ord. No. 184,692, Eff. 12/30/16.)

Section 94.2000.0 General. 94.2001.0 Scope. 94.2005.0 Location. 94.2006.0 [Protection from Mechanical Damage.] 94.2010.0 NFPA 13. 94.2013.0 NFPA 13R. 94.2014.0 NFPA 13D. 94.2020.0 NFPA 14. 94.2030.0 NFPA 20 Fire Pump and Drivers. 94.2040.0 NFPA 24 Installation of Private Fire Service Mains and Their Appurtenances. 94.2050.0 NFPA 22 Fire Protection Tanks.

Water Curtain is a line of closely spaced fire sprinklers (or a single sprinkler) aligned adjacent to openings to keep fire from penetrating those openings.

94.2010.3. NFPA 13 Section 9.3.5.5 is added to read as follows:

Water curtains shall consist of closely spaced sprinklers and draft stops that are made of noncombustible or limited combustible material. The draft stops shall be located immediately adjacent to the

opening and shall be at least 18 inches (47.2 mm) deep measured from the sprinkler deflector to the bottom of the draft stop and shall be of noncombustible or limited-combustible material. Sprinklers shall be spaced not more than 6 feet (1929.8 mm) apart and placed 6 to 12 inches (152.4 mm to 304.8 mm) from the draft stop on the side away from the opening. Where sprinklers are closer than 6 feet (1828.8 mm), cross baffles shall be provided in accordance with NFPA 13 Section 10.2.5.4.2.

94.2010.4. NFPA 13 Section 16.9.10.5 is added to read as follows:

Locations. Floor control valves shall be within a stairway enclosure or within the vestibule or on the access balcony of a smoke proof enclosure.

EXCEPTIONS:

1. In buildings with three or fewer stories or where there is no stairway that serves a floor, control valves may be located elsewhere on the floor level.

   2. Unenclosed stairways in parking garages.

94.2010.5. NFPA 13 Section 19.3.3.6 is added to read as follows:

Where the Fire Department inlet connection does not serve the entire building, the portion served shall be suitably identified.

94.2020.3. NFPA 14 Section 9.1.5 is hereby added to read as follows:

1. A public waterworks system where pressure and flow rate are adequate;

   2. Automatic fire pumps connected to an approved water source in accordance with NFPA 20, Standard for the Installation of Stationary Pumps for Fire Protection.

94.2020.4. Pressure Regulator Hose Valve Test.

94.2020.4.1. Test Required. When required by the Fire Department, 2 1/2 inch (63.5 mm) pressure regulator hose valves installed on standpipe outlets shall be tested for proper operation at a flow of 300 g.p.m. with a minimum residual pressure of 125 psi in the presence of a representative of the Fire Department.

94.2020.4.2. Safety. Test nozzles and other equipment shall be adequately secured so as to eliminate danger to personnel.

94.2020.4.3. Opening. An accessible 2 1/2 inch (63.5 mm) capped or plugged test opening shall be installed adjacent to each pressure regulator valve.

94.2020.4.4. Drain. The test openings shall drain to a minimum 3 inch (76.2 mm) drain line constructed and installed as required for fire sprinkler drains. The drains shall not discharge where they may cause damage. Where available, drains shall terminate to the fire water storage tank. When test openings are located below tank elevation alternate means for testing and drainage shall be provided as needed.

94.2020.4.5. Interconnection. TThe test drain shall either be separate or connect to a fire sprinkler drain. Low point Auxiliary drains shall be added if required.

94.2020.5. NFPA 14 Section 11.2.3 is amended to read as follows:

Flow. All standpipes shall be flushed individually through the roof, or in the absence of roof outlets, through the topmost outlet at a residual pressure of at least 65 psi. The flow for Class I and

Class III standpipes shall be at least 500 g.p.m through each riser.