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42.11.2 Liquefied Petroleum Gas (LP-Gas)
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42.11.2.1
42.11.2.2 Scope
42.11.2.2.1*
Chapter 11 of NFPA 58 applies to engine fuel
systems installed on mobile and nonstationary engines and offroad vehicles using LP-Gas in internal combustion engines,
including containers, container appurtenances, carburetion
equipment, piping, hose and fittings, and their installation.
[58:11.1.1]
42.11.2.2.2*
Chapter 11 of NFPA 58 applies to the installation
of fuel systems supplying engines used to propel motorized
vehicles as defined in 42.11.2.2.1. [58:11.1.3]
42.11.2.2.3
Chapter 11 of NFPA 58 applies to garaging of vehicles where such systems are installed. [58:11.1.4]
42.11.2.3 Training
Each person engaged in installing, repairing, filling, or otherwise servicing an LP-Gas engine fuel system
shall be trained in accordance with Section 4.4 of NFPA 58.
[58:11.2]
42.11.2.4 Industrial (And Forklift) Trucks Powered by LP-Gas
42.11.2.4.1 Scope
42.11.2.4.2 Operations
The operation of industrial trucks
(including forklift trucks) powered by LP-Gas engine fuel
systems shall comply with 42.11.2.4.2.1 through 42.11.2.4.2.3.
[58:11.11.4]
42.11.2.4.2.1
Industrial trucks shall be refueled outdoors.
[58:11.11.4.1]
42.11.2.4.2.2
42.11.2.4.2.3
Where LP-Gas-fueled industrial trucks are used in buildings or structures, the following shall apply:
- The number of fuel cylinders on such a truck shall not exceed two.
- The use of industrial trucks in buildings frequented by the public, including those times when such buildings are occupied by the public, shall require the approval of the AHJ.
- The total water capacity of the fuel cylinders on an individual truck shall not exceed 105 lb (48 kg) [nominal 45 lb (20 kg) propane capacity].
- Trucks shall not be parked and left unattended in areas occupied by or frequented by the public without the approval of the AHJ. If left unattended with approval, the cylinder shutoff valve shall be closed.
- In no case shall trucks be parked and left unattended in areas of excessive heat or near sources of ignition.
42.11.2.4.2.4
42.11.2.5 General Provisions for Vehicles Having Engines Mounted on Them (Including Floor Maintenance Machines)
42.11.2.5.1 Scope
42.11.2.5.1.1
Paragraph 42.11.2.5 applies to the installation of
equipment on vehicles that supply LP-Gas as a fuel for engines
installed on these vehicles. [58:11.12.1.1]
42.11.2.5.1.2
Vehicles include floor maintenance and any
other portable mobile unit, whether the engine is used to
propel the vehicle or is mounted on it for other purposes.
[58:11.12.1.2]
42.11.2.5.2 General Requirements
42.11.2.5.2.1
42.11.2.5.2.2
The source of air for combustion shall be isolated from the driver and passenger compartment, ventilating
system, or air-conditioning system on the vehicle.
[58:11.12.2.2]
42.11.2.5.2.3
Non-self-propelled floor maintenance machinery (floor polishers, scrubbers, buffers) and other similar
portable equipment shall be listed. [58:11.12.2.3]
42.11.2.5.2.3.1
42.11.2.5.2.3.2
The use of floor maintenance machines in
buildings frequented by the public, including the times when such buildings are occupied by the public, shall require the
approval of the AHJ. [58:11.12.2.3 (B)]
42.11.2.6 Garaging of Vehicles
Where vehicles with LP-Gas engine fuel systems mounted on them, and general-purpose vehicles propelled by LP-Gas engines, are stored or serviced inside garages, the following conditions shall apply:
- The fuel system shall be leak-free.
- The container shall not be filled beyond the limits specified in Chapter 7 of NFPA 58.
- The container shutoff valve shall be closed when the vehicle or the engine is being repaired, except when the engine is required to operate. Containers equipped with an automatic shutoff valve as specified in 11.4.1.7 of NFPA 58 satisfy this requirement.
- The vehicle shall not be parked near sources of heat, open flames, or similar sources of ignition or near inadequately ventilated pits.
Upcodes Diagrams
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