Form Ds-164 - High-Piled Combustible Storage - City Of San Diego Development Services Page 3

Download a blank fillable Form Ds-164 - High-Piled Combustible Storage - City Of San Diego Development Services in PDF format just by clicking the "DOWNLOAD PDF" button.

Open the file in any PDF-viewing software. Adobe Reader or any alternative for Windows or MacOS are required to access and complete fillable content.

Complete Form Ds-164 - High-Piled Combustible Storage - City Of San Diego Development Services with your personal data - all interactive fields are highlighted in places where you should type, access drop-down lists or select multiple-choice options.

Some fillable PDF-files have the option of saving the completed form that contains your own data for later use or sending it out straight away.

City of San Diego • Development Services Department

High-Piled Combustible Storage

Page 3 of 3

•

Project Address/Location:

Project Number:

For City Use Only

PART C. CONTROL MODE SPECIFIC APPLICATION (CMSA)

❏

In-Rack Sprinklers:

Yes

Ceiling Sprinklers:

If Yes, complete Items 6-9 below.

1. NFPA 13 Table: __________________

6. NFPA 13 Table or Curve: __________________________________

2. Sprinkler K-Factor: ____________

7. Number of Levels of In-Rack Sprinklers: ________

3. ________ Sprinklers Calculated at __________________ psi

8. Number of Designed In-Rack Sprinklers: ______

4. Hose Stream Allowance: _________ gpm for _____ minutes

9. Minimum In-Rack Pressure Calculated: _________________ psi

5. Clearance Above Storage: ____________ feet

PART D. OTHER DESIGN CRITERIA

Specify NFPA 13 Referenced Section(s) Used and Design Criteria: ______________________________________________

SECTION IV: DEFINITIONS TAKEN FROM THE CFC AND NFPA 13

Aisle Width: The horizontal dimension between the face of the loads in racks under consideration. NFPA 13

Automated Rack Storage: A stocking method whereby the movement of pallets, products, apparatus or systems are automatically controlled

by mechanical or electronic devices. CFC

Back-to-Back Shelf Storage: Two solid or perforated shelves up to 30 inches in depth each, not exceeding a total depth of 60 inches, separated

by a longitudinal vertical barrier such as plywood, particleboard, sheet metal, or equivalent, with a maximum 0.25 inch diameter penetrations and

no longitudinal flue space and a maximum storage height of 15 feet. CFC

Bin Box: A five-sided container with the open side facing an aisle. Bin boxes are self-supporting or supported by a structure designed so that little

or no horizontal or vertical space exists around the boxes. CFC

Cartoned: A method of storage consisting of corrugated cardboard or paperboard containers fully enclosing the commodity. NFPA 13

Ceiling/Roof Height: The distance between the floor and the underside of the roof deck or insulation within the storage area. NFPA 13

Clearance: The distance from the top of storage to the ceiling sprinkler deflectors. NFPA 13

Commodity: A combination of products, packaging materials, containers, and pallets. CFC

Double-Row Rack: Racks less than or equal to 12 feet in depth or single-row racks placed back to back having an aggregate depth up to 12 feet,

with aisles having an aisle width of at least 3.5 feet between loads on racks. NFPA 13

Encapsulation: A method of packaging consisting of a plastic sheet completely enclosing the sides and top of a pallet load containing a combus-

tible commodity or a combustible package or a group of combustible commodities or combustible packages. Combustible commodities individually

wrapped in plastic sheeting and stored exposed in a pallet load also are to be considered encapsulated. Totally noncombustible commodities on

wood pallets enclosed only by a plastic sheet as described are not covered under this definition. Banding (i.e., stretch-wrapping around the sides

only of a pallet load) is not considered to be encapsulation. Where there are holes or voids in the plastic or waterproof cover on the top of the carton

that exceeds more than half of the area of the cover, the term encapsulated does not apply. The term encapsulated does not apply to plastic-enclosed

products or packages inside a large, non-plastic, enclosed container. NFPA 13

High-Piled Combustible Storage: Storage of combustible materials in closely packed piles or combustible materials on pallets, in racks or on

shelves where the top of storage is greater than 12 feet in height. High-piled combustible storage also includes certain high-hazard commodities,

such as rubber tires, Group A plastics, flammable liquids, idle pallets and similar commodities, where the top of storage is greater than 6 feet in

height. CFC

Longitudinal Flue Space: The space between rows of storage perpendicular to the direction of loading. CFC

Miscellaneous Storage: Storage that does not exceed 12 feet in height and is incidental to another occupancy use group. Such storage shall not

constitute more than 10 percent of the building area or 4,000 ft

of the sprinklered area, whichever is greater. Such storage shall not exceed 1,000

in one pile or area, and each such pile or area shall be separated from other storage areas by at least 25 feet. NFPA 13

Multiple-Row Racks: Racks greater than 12 feet in depth or single- or double-row racks separated by aisles less than 3.5 feet wide having an

overall width greater than 12 feet. NFPA 13

Open-Top Container: A container of any shape that is entirely or partially open on the top. NFPA 13

Palletized Storage: Storage of commodities on pallets or other storage aids that form horizontal spaces between tiers of storage. NFPA 13

Rack: Any combination of vertical, horizontal, and diagonal structural members that support stored materials or commodities. NFPA 13

Shelf Storage: Storage on shelves less than 30 inches deep with the distance between shelves not exceeding 3 feet vertically. CFC

Single-Row Racks: Racks that have no longitudinal flue space and that have a depth up to 6 feet with aisles having a width of at least 3.5 feet

between loads on racks. NFPA 13

Solid Shelving: Shelving that is solid, slatted or of other construction located in racks and which obstructs sprinkler discharge down into the

racks. Solid shelving is fixed in place, slatted, wire mesh, or other type of shelves located within racks. The area of a solid shelf is defined by pe-

rimeter aisle or flue space on all four sides. Solid shelves having an area equal to or less than 20 ft

measured between approved flue spaces at all

four edges of the shelf shall be defined as open racks. Shelves of wire mesh, slats or other materials more than 50% open and where the flue spaces

are maintained shall be defined as open racks. NFPA 13

Storage Height: Storage of commodities on rack, floor, shelf etc. measured from floor to top of highest storage. NFPA 13

Transverse Flue Space: The space between rows of storage parallel to the direction of loading. CFC

❏

For City Use Only

COMMODITY CLASSIFICATION

III

N/A

❏