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Section 3809 Storage of Portable LPG Containers

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3809.1 General
Storage of portable LPG containers shall comply with the requirements of FC 3809.2 through 3809.14, and shall be approved by the commissioner.

Exceptions:
  1. Containers that have not previously contained LPG.
  2. Containers stored for use at construction sites.
3809.2 Exposure Hazards
Containers in storage shall be stored in locations that minimize exposure to physical damage, tampering or excessive temperature rise.
3809.3 Position
Containers in storage having individual capacity greater than 1 pound (0.454 kg) of LPG shall be positioned with the pressure relief valve in direct communication with the vapor space of the container.
3809.4 Separation From Means of Egress
Containers shall not be stored or left unattended near exit access doors, exits, stairways, exit discharge areas, or other areas designed or used as a means of egress.
3809.5 Quantity
Empty containers that have been in LPG service shall be considered as full containers for the purpose of determining the maximum quantities of LPG allowed in FC 3809.9 and 3809.11.
3809.6 Storage on Roofs
Containers shall not be stored, or connected for use in a stationary LPG installation, on the roof of any building or structure.
3809.7 Storage in Basement, Pit or Other Area Below Grade
LPG containers shall not be stored in a cellar, basement, pit or other area below grade.
3809.8 Protection of Valves on Containers in Storage
Container valves shall be protected by screw-on-type caps or collars which shall be securely in place on all containers stored regardless of whether they are full, partially full or empty. Container outlet valves shall be closed.
3809.9 Storage Within Buildings Accessible to the Public
LPG containers constructed in accordance with the United States Department of Transportation (DOTn) specifications with a maximum capacity of 16.4 ounces (0.465 kg) of LPG used in completely self-contained hand torches and similar devices are allowed to be stored for sale or displayed in a building accessible to the public. Buildings shall be protected by a sprinkler system in storage and display areas when quantities exceed permit amounts. The quantity of LPG shall not exceed 200 pounds (91 kg).
3809.10 Storage Within Buildings Not Accessible to the Public
The quantity of LPG containers allowed in one storage location in a building not accessible to the public, such as an industrial building, shall not exceed a maximum capacity of 300 pounds (136 kg) of LPG. Where LPG containers are stored in more than one location on the same floor of a building, the storage areas shall be separated by a minimum of 300 feet (91 440 mm).

Exception: Storage of LPG at construction sites shall be in accordance with the rules.
3809.11 Reserved
3809.12 Location of Outdoor Storage
Outdoor storage, including storage of containers for sale and containers connected for use, shall be located not less than 20 feet (6096 mm) from building openings, 20 feet (6096 mm) from any motor vehicle fuel dispenser and 10 feet (3048 mm) from any combustible material and, as applicable, in accordance with FC Table 3809.12. Outdoor storage of LPG shall be limited to not more than 400 pounds (181.6 kg) of LPG and shall be located at or above grade level.

Exception: Storage of LPG at construction sites shall be in accordance with the rules.

FC TABLE 3809.12 DISTANCES FROM OUTDOOR LPG STORAGE AREA TO EXPOSURES

TYPE OF OUTDOOR EXPOSURE LPG STORAGE AREA MORE THAN 100 POUNDS LPG UP TO MAXIMUM
400 POUNDS LPG MINIMUM DISTANCE TO EXPOSURE (FEET)
Building or structure of combustible construction 10
Subway entrance, exit or other opening 25
Flammable and combustible liquids
Aboveground — 1,000 gallons or less

10a
Flammable and combustible liquids
Aboveground — in excess of 1,000 gallons

20a
Flammable and combustible liquids
Below ground tank — 1,000 gallons or less

10a
Flammable and combustible liquids
Below ground tank — 1,000 gallons or less
Vent or fill opening of tank

15a
Flammable and combustible liquids
Below ground tank — in excess of 1,000 gallons

15a
Flammable and combustible liquids
Below ground tank — in excess of 1,000 gallons
Vent or fill opening of tank


15a
Flammable gas storage area,
1,500 SCF or less

10a
Flammable gas storage area,
More than 1,500 SCF up to maximum 3,500 SCF

20a
Oxygen storage — 20,000 SCF or less In accordance with NFPA 51a
Oxygen storage — in excess of 20,000 SCF In accordance with NFPA 55a
Fast-burning solids, such as ordinary lumber, excelsior or paper 10a
Slow-burning solids, such as heavy timber or coal 10a
Air compressor intakes or inlets to heating, ventilating or
air-conditioning equipment

5
Group A occupancies and public gathering places 25
Public sidewalks and parked motor vehicles 10
Public streets, private roads and lot lines 10a

For SI: 1 foot = 304.8 mm, 1 cubic foot = 0.02832 m3 , 1 gallon = 3.785 L.
a. The minimum required distances may be reduced to 5 feet when protective structures having a minimum fire-resistance rating of 2 hours interrupt the line of sight between the container and the exposure. The protective structure shall be at least 5 feet from the exposure. The configuration of the protective structure shall be designed to allow natural ventilation to prevent the accumulation of hazardous gas concentrations.
3809.12.1 Proximity to Hazards
Storage shall not be located where the stored LPG would be exposed to the following hazards in the event of the failure of their structure or containment systems:
  1. Electric power lines.
  2. Piping containing flammable or combustible liquids.
  3. Piping containing flammable gases.
  4. Piping containing oxidizing materials.
3809.13 Protection of Containers
Containers shall be stored within a suitable enclosure or otherwise protected against tampering. Vehicular protection shall be provided as required by the commissioner.
3809.14 Electrical Equipment
Except as otherwise provided in NFPA 58, electrical equipment within 3 feet (914 mm) in any direction of an outdoor LPG facility shall comply with the Class I, Division 2 wiring requirements of the Electrical Code for hazardous locations, unless electrical equipment is separated from such area by a wall or other solid partition having no openings.

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