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Chapter 38 Liquefied Petroleum Gases

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Chapter 38 Liquefied Petroleum Gases Color profile: Generic CMYK printer profile Composite Default screen CHAPTER 38 LIQUEFIED PETROLEUM GASES SECTION 3801 SECTION 3803 GENERAL INSTALLATION OF EQUIPMENT 3801.1 Scope. Storage, handling and transportation of LP-gas 3803.1 General. Liquefied petroleum gas equipment shall be and the installation of LP-gas equipment pertinent to systems installed in accordance with the International NFPA 54, Na- for such uses shall comply with this chapter, NFPA 54, Na- tional Fuel Gas Code and NFPA 58 as amended, except as tional Fuel Gas Code and NFPA58, Liquefied Petroleum Gas otherwise provided in this chapter. Code as amended. Exception: LP-gas used with oxygen for hot work opera- tions shall be in accordance with Chapter 26. SECTION 3803.2 USE OF LP-GAS INSIDE BUILDINGS Properties of LP-gases shall be determined in accordance 3803.2 Use of LP-gas containers in buildings. LP-gas con- with Appendix B of NFPA 58 as amended. tainers shall not be used inside of buildings. 3801.2 Permits. Permits shall be required as set forth in Sec- Exception: The use of LP-gas containers in buildings shall tions 105.6 and 105.7. be in accordance with Sections 3803.2.1 and 3803.2.2. Distributors shall not fill an LP-gas container for which a 3803.2.1 Portable containers. Portable LP-gas contain- permit is required unless a permit for installation has been is- ers, as defined in NFPA58 as amended, shall not be used in sued for that location by the fire code official. buildings except as specified in NFPA 58 and Sections 3801.3 Construction documents. Where a single container 3803.2.1.1 through 3803.2.1.7. [NFPA 58 3.4.1.1] is more than 2,000 500 gallons (7570 1892.5 L) in water ca- 3803.2.1.1 Use in basement, pit or similar location. pacity or the aggregate capacity of containers is more than LP-gas containers shall not be used in a basement, pit or 4,000 1,000 gallons (15140 3785 L) in water capacity and for similar location where heavier-than-air gas might collect. all mounded or underground LP-gas containers, the installer LP-gas containers shall not be used in an above-grade shall submit construction documents to the fire code official underfloor space or basement unless such location is pro- for approval of for such installation prior to beginning the in- vided with an approved means of ventilation. stallation. [NFPA 58 1.4.1]. ➡ Exception: Use with self-contained torch assem- blies in accordance with Section 3803.2.1.6. SECTION 3802 3803.2.1.2 Construction, renovation and temporary DEFINITIONS heating. Portable containers are allowed to be used in 3802.1 Definition. The following word and term shall, for the buildings or areas of buildings undergoing construc- purposes of this chapter and as used elsewhere in this code, tion, or renovation, or for temporary heating as set forth have the meaning shown herein. in this section and Sections 3.4.3, 3.4.4, and 3.4.7 of LIQUEFIED PETROLEUM GAS (LP-gas). A material NFPA 58 as amended. [NFPA 58 3.4.3, 3.4.4, 3.4.7] which is composed predominantly of the following hydrocar- Individual LP-gas container capacities and aggregate bons or mixtures of them: propane, propylene, butane (normal quantities of LP-gas allowed within buildings undergo- butane or isobutane) and butylenes. ing construction or renovation shall be in accordance with Table 3803.2.1.2-A. TABLE 3803.2.1.2-A USE OF LP-GAS INSIDE BUILDINGS UNDERGOING CONSTRUCTION OR RENOVATION1 MAXIMUM INDIVIDUAL MAXIMUM AGGREGATE MAXIMUM AGGREGATE QUANTITY LOCATION CONTAINER CAPACITY QUANTITY PER FLOOR INSIDE THE BUILDING Within Occupied A Occupancies Limits established by permit issued by Special Events Section Number of cylinders shall not Number of cylinders shall not Within Occupied Buildings 50 lbs water capacity exceed the number of workers exceed the number of workers other than A Occupancies (nominal 20 lbs LP-gas capacity) assigned to use the LP-gas. assigned to use the LP-gas. 239 lbs water capacity 735 lbs water capacity 4410 lbs water capacity Unoccupied Buildings (nominal 100 lbs LP-gas capacity) (nominal 300 lbs LP-gas capacity) (nominal 1,800 lbs LP-gas capacity) For SI: 1 pound = .454 kg. 1. Weight of LP-gas per gallon = 4.20 lbs. See Point of Information. 2003 SEATTLE FIRE CODE 365 M:\data\CODES\SEATTLE_2004\SEATTLE_FireCustomCode\Final VP\38_SeattleFire_2004.vp Friday, October 15, 2004 2:10:46 PM Color profile: Generic CMYK printer profile Composite Default screen LIQUEFIED PETROLEUM GASES TABLE 3803.2.1.2-B USE OF LP-GAS INSIDE BUILDINGS FOR TEMPORARY HEATING1,2 LOCATION MAXIMUM INDIVIDUAL CONTAINER CAPACITY MAXIMUM AGGREGATE QUANTITY INSIDE THE BUILDING 239 lbs water capacity 735 lbs water capacity Group F Occupancies (nominal 100 lbs LP-gas capacity) (nominal 300 lbs LP-gas capacity) All Occupancies3 except Established by temporary permit Established by temporary permit Group F Occupancies For SI: 1 pound = .454 kg. 1. Temporary heating refers to seasonal space heating that may supplement the buildings primary heat source. 2. Weight of LP-gas per gallon = 4.20 lbs. 3. Allowed in these occupancies only for emergency heating to prevent damage to the building or contents when the permanent heating system is temporarily out of service. Individual LP-gas container capacities and aggregate and public exhibitions. Such containers shall not exceed a quantities of LP-gas allowed within buildings for tem- water capacity of 12 pounds (5 kg). Where more than one porary heating shall be in accordance with Table such container is present in the same room, each container 3803.2.1.2-B. shall be separated from other containers by a distance of not less than 20 feet (6096 mm). [NFPA 58 3.4.8] 3803.2.1.3 Group Foccupancies. In Group F occupan- cies, portable LP-gas containers are allowed to be used 3803.2.1.6 Use with self-contained torch assemblies. to supply quantities necessary for processing, research Portable LP-gas containers are allowed to be used to sup- or experimentation. Where manifolded, the aggregate ply approved self-contained torch assemblies or similar water capacity of such containers shall not exceed 735 appliances. Such containers shall not exceed a water ca- pounds (334 kg) per manifold. pacity of 2.57 pounds (1.2 kg). [NFPA 58 3.4.8.3] Temporary heating using LP-gas is also allowed in- 3803.2.1.7 Use for food preparation. Where approved, side Group F occupancies in accordance with Section listed LP-gas commercial food service appliances are al- 3803.2.1.2. lowed to be used for food-preparation within restaurants and in attended commercial food-catering operations in Individual LP-gas container capacities and aggregate accordance with the International NFPA 54, National quantities of LP-gas allowed within Group F occupancies Fuel Gas Code, the International Mechanical Code and shall be limited in accordance with Table 3803.2.1.3. NFPA 58 as amended. [NFPA 58 3.4.8.4] TABLE 3803.2.1.3 3803.2.2 Industrial vehicles and floor maintenance ma- USE OF LP-GAS INSIDE GROUP F OCCUPANCIES1 chines. Containers on industrial vehicles and floor mainte- MAXIMUM AGGREGATE nance machines shall comply with NFPA 58, Sections 8.3 MAXIMUM INDIVIDUAL CONTAINER CAPACITY LOCATION CONTAINER CAPACITY PER MANIFOLD2 and 8.4 of NFPA 58 as amended. [NFPA 58 8.3, 8.4] 287 lbs water capacity 3803.3 Location of equipment and piping. Equipment and 100 lbs water capacity Fire District (nominal 120 lbs LP-gas piping shall not be installed in locations where such equipment (nominal 40 lbs LP-gas) capacity) and piping is prohibited by the International Fuel Gas Code. 239 lbs water capacity 735 lbs water capacity 3803.3 Use of LP-gas containers on roofs or exterior balco- Elsewhere (nominal 100 lbs LP-gas (nominal 300 lbs LP-gas nies. LP-gas containers on roofs or exterior balconies shall be capacity) capacity) in accordance with Sections 3803.3.1 through 3803.3.2. For SI: 1 pound = .454 kg. 3803.3.1 LP-gas containers on roofs of buildings. LP-gas 1. Weight of LP-gas per gallon = 4.20 lbs. 2. Where multiple manifolds of such containers are present in the same room, containers are prohibited on the roofs of buildings and park- each manifold shall be separated from other manifolds by a distance of not ing garages. [NFPA 58 3.2.10.1, 3.4.1.1, 3.4.9] less than 20 feet (6096 mm). [NFPA 58 3.4.5] Exceptions: 3803.2.1.4 Group B, E and I occupancies. In Group B, E 1. Temporary installations at construction sites in ac- and I laboratory occupancies, portable LP-gas containers cordance with Section 3803.4. are allowed to be used for research and experimentation. Such containers shall not be used in classrooms. Such con- 2. A single LP-gas container having an individual tainers shall not exceed a 50-pound (23 kg) water capacity water capacity not exceeding 48 pounds (22 kg) in occupancies used for educational or research purposes [nominal 20 pounds (9 kg) LP-gas] connected to a and shall not exceed a 12-pound (5 kg) water capacity in oc- LP-gas grill. cupancies used for institutional purposes. Where more than 3803.3.2 Containers on exterior balconies. LP-gas contain- one such container is present in the same room, each con- ers with a water capacity greater than 2.7 pounds (1.2 kg) tainer shall be separated from other containers by a distance shall not be located on balconies above the first floor that are of not less than 20 feet (6096 mm).
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