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YARD HYDRANT SYSTEMS
(a) When Required. Whenever the ground area of the premises of an industrial plant, tank farm, lumber yard, storage area for combustible material, amusement park, exhibition park or other occupancy involving the use of large ground area exceeds fifteen thousand (15,000) square feet, and whenever the area of a lumber shed on any premises exceeds five thousand (5,000) square feet aggregate area, and such premises are so located or arranged that efficient firefighting cannot be carried on from existing public hydrants, the Fire Chief may require the installation of yard hydrants by the owner of the premises in conformity with the provisions of this section.
(b) Number Required.
(1) One (1) yard hydrant shall be provided for each twenty thousand (20,000) square feet of ground area and such hydrants shall be spaced not more than two hundred fifty (250) feet apart.
(2) Yard hydrants in lumber yards shall be spaced not more than two hundred fifty (250) feet apart and shall be in such number and so located that streams therefrom, when used in first-aid or Fire Division firefighting, shall reach all areas on the premises, including those within lumber sheds.
Every required yard hydrant within a lumber yard shall be equipped with attached hose kept within a hose house.
(c) Hose Houses.
(1) When deemed necessary by the Chief or required by this Fire Prevention Code, hose houses or cabinets containing an adequate supply of rubber-lined cotton hose, two and one-half (2-1/2) inch in size and not less than one hundred (100) feet long, shall be maintained attached to the yard hydrant or hydrants and arranged or laid within a hose house ready for use at any time.
(2) Hydrants, hose, hose connections and nozzles shall conform to Fire Division standard.
(3) Hose houses shall be painted red with the words “Fire Hose” six (6) inches high in white letters on the door.
(d) Water Supply.
(1) Where adequate pressure and capacity exist, yard hydrants may be connected to the public water supply. Where the public water supply is deemed inadequate by the Chief, such yard hydrants shall be supplied either from a gravity tank of not less than fifty thousand (50,000) gallons capacity elevated so that the bottom of the tank is at least seventy-five (75) feet above the highest grade level within the area protected or at least twenty-five (25) feet above the highest structure in the area; or from a fire pump with a capacity of not less than one thousand (1,000) gallons a minute drawing from a suction tank of not less than sixty thousand (60,000) gallons capacity; or from another approved source which will provide an adequate supply of water for firefighting purposes.
(2) When water supply is taken from a well, stream, lake or other source approved by the Division, the installation and arrangement shall also be approved by the Commissioner of Water and Heat. No connection shall be made which may result in a cross- connection between the public mains and the water drawn from other sources.
(3) Yard hydrant systems connected to City water mains shall be provided with post indicator valves located in accessible positions. Post indicator valves shall be sealed or locked in the open position, be painted red and their purpose shall be plainly marked upon them.
(e) Monitor Nozzle and First-Aid Hose. Whenever the occupancy is of unusual hazard the Chief may require the installation of a monitor nozzle with remote control, connected to such yard hydrant system. Where unusual hazards exist and where first-aid firefighting equipment is deemed necessary by him or her, he or she may also require the installation of one and one-half inch (1-1/2) first-aid hose mounted on approved racks and connected to piping not less than two (2) inches in size.
(f) Special Fire Extinguishing Equipment. Storage areas for storing flammable liquids in above- ground tanks, refineries and high hazard occupancies shall also be equipped with other fire extinguishing equipment required by this Code.
(Ord. No. 991-49. Passed 6-27-49, eff. 6-27-49)
AUTOMATIC SPRINKLERS; OTHER EXTINGUISHING EQUIPMENT
(b) Such automatic fire extinguishing equipment shall be approved automatic sprinklers, except that in locations where automatic sprinklers would be hazardous or inadvisable because of the nature of the occupancy or contents, automatic fire extinguishing equipment comprising one (1) or more of the following types of systems may be approved in lieu thereof by the Fire Chief.
(1) Carbon Dioxide Fire Extinguishing Systems. When installed in conformity with the recommendation contained in NFPA Standard No. 12 entitled “Carbon Dioxide Extinguishing Systems.”
(2) Foam Extinguishing Systems. When installed in conformity with the recommendations contained in NFPA Standard No. 11 entitled “Foam Extinguishing Systems.”
(3) Water Spray Extinguishing Systems. When installed in conformity with recommendations contained in NFPA Standard No. 15 entitled “Water Spray Fixed Systems.”
(4) Steam Extinguishing Systems. When installed in conformity with the recommendations contained in NFPA Standard No. 86A entitled “Class A Ovens and Furnaces.”
(5) Other Approved Automatic Systems. When approved and authorized for use by the Board of Building Standards and Building Appeals and when installed in conformity with the conditions of approval.
(c) No automatic sprinkler system shall be installed where water discharged therefrom will come in contact with high voltage electrical equipment or moisture-hazardous substances. For the purposes of this subsection, high voltage shall be deemed to be two thousand two hundred (2,200) volts and over.
(d) As used in this Fire Prevention Code, “automatic sprinklers or other approved automatic fire extinguishing equipment” means approved automatic sprinklers except in instances where substitution of
other automatic fire extinguishing equipment is approved by the Fire Chief.
(Ord. No. 991-49. Passed 6-27-49, eff. 6-27-49)
Automatic sprinklers or other automatic fire extinguishing equipment shall be installed in buildings or other structures where specified in the following table and where specified for special uses or occupancies in Chapter 3125.
Automatic Sprinklers or Other Approved Automatic Fire Extinguishing Equipment
Requirements for buildings erected or occupied after June 27, 1949, and for existing buildings when specified (See Note (e)).
Occupancy Classification
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Where Required
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All bldgs. exceeding either 1,000 sq. ft. in area or 1 story height
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Bldgs. more than 2 stories in height and exceeding 10,000 sq. ft. in area; and occupancies above 2nd story occupying more than 10,000 sq. ft. (Also consult sections listed)
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Basements and cellars: as specified under “Req. Based On Occupancy” when area exceeds 5,000 sq. ft.
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In connectio n with stage and appurtena nt rooms
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Lobbies, hallways and contiguous areas with combustible interior finish and serving as a required means ofegress; as required by Sections 3135.19 and 3151.07(f)
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Paint shops and similar hazardous spaces
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Kitchen compartments: where required by Section 3125.06(a)(3)
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Occupancy Classification
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Where Required
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All bldgs. exceeding either 1,000 sq. ft. in area or 1 story height
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Bldgs. more than 2 stories in height and exceeding 10,000 sq. ft. in area; and occupancies above 2nd story occupying more than 10,000 sq. ft. (Also consult sections listed)
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Basements and cellars: as specified under “Req. Based On Occupancy” when area exceeds 5,000 sq. ft.
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In connectio n with stage and appurtena nt rooms
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Lobbies, hallways and contiguous areas with combustible interior finish and serving as a required means ofegress; as required by Sections 3135.19 and 3151.07(f)
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Paint shops and similar hazardous spaces
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Kitchen compartments: where required by Section 3125.06(a)(3)
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Residential – Multiple Dwelling | X (b) | X (b)(e) | X (a) | ||||
Business | X (b) | X (b) | |||||
Mercantile | X (3127.25(a)(2)) | X | X (b) | ||||
Institutional | X (b)(e) | ||||||
Assembly | X | X (b) | |||||
Educational | X (b)(e) | ||||||
Storage (Low or Moderate Hazard) | X (3129.13(a)(1)B.) | X (c) | X (b)(f) | ||||
Industrial N.C. | X (b) | ||||||
Industrial C. | X (3129.31(a)(2)) | X | X (b) | ||||
High Hazard | X (d) | X (b)(f) | |||||
(a) On domestic water supply; no alarm valve or exterior Fire Division connection required. (b) When only these areas in a building are sprinklered, connection to domestic water supply permissible and no alarm valve or exterior Division connection required. (c) May be omitted when storage is restricted to incombustible material. (d) When used for purposes, processes or storage involving combustible, flammable or explosive products or materials. Also consult Section 3129.49(a). (e) Applies also in existing buildings; consult Sections 3125.46(f), 3127.46, and 3127.82. | |||||||
(Ord. No. 991-49. Passed 6-27-49, eff. 6-27-49)
As used in this Fire Prevention Code:
(a) “Sprinkler system” means a system of piping connecting to one (1) or more approved sources of water supply and provided with distributing devices so located and arranged as to discharge or diffuse an effective stream or spray of water over the interior of a building or part of a building, or on the exterior of a building.
(b) “Automatic sprinkler head” means a device which will open automatically within a predetermined temperature range because of fusing of a fusible element, or will operate automatically when controls are subjected to a predetermined accelerated rise in temperature.
(c) “Automatic sprinkler system” means operate automatically to discharge or diffuse a stream or spray of water through automatic sprinkler heads or through open sprinkler heads.
(d) “Wet-pipe sprinkler system” means a sprinkler system in which all piping is maintained filled with water and connected to an approved source of water supply.
(e) “Dry-pipe sprinkler system” means a sprinkler system to which water is supplied upon operation of an automatic dry-pipe valve actuated and operated automatically by release or application of air pressure, or actuated and operated electrically by remote thermostatic control.
(Ord. No. 991-49. Passed 6-27-49, eff. 6-27-49)
All required automatic sprinkler installations shall be made in conformity with drawings which have been submitted to and approved by the Fire Chief. When the building or other structure is to be equipped with a required standpipe system, the drawing shall bear a notation to that effect, or may show the layout of the standpipe system.
(Ord. No. 991-49. Passed 6-27-49, eff. 6-27-49)
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