Loading...
2309.7 Safety precautions.
Safety precautions at hydrogen motor fuel-dispensing and generating facilities shall be in accordance with this section.
2309.7.1 Protection from vehicles.
Guard posts or other approved means shall be provided to protect hydrogen storage systems and use areas subject to vehicular damage in accordance with FC 312.
2309.7.2 Vehicle fueling pad.
The motor vehicle shall be fueled on noncoated concrete or other approved paving material having a resistance not exceeding 1 megohm as determined by the methodology specified in EN 1081.
2309.7.3 Emergency shutoff valves.
A manual emergency shutoff valve shall be provided at a clearly visible, accessible and approved location, to shut down the flow of gas from the hydrogen supply to the piping system.
2309.7.4 Emergency shutdown controls.
In addition to the manual emergency shutoff valve required by FC 2309.7.3, a remotely located, manually activated emergency shutdown control shall be provided. An emergency shutdown control shall be located within 75 feet (22 860 mm) of, but not less than 25 feet (7620 mm) from, dispensers and hydrogen generators.
2309.7.5 System requirements.
Activation of the emergency shutdown control shall automatically shut down the power supply to all hydrogen storage, compression and dispensing equipment; shut off natural gas or other fuel supply to the hydrogen generator; and close valves between the main supply and the compressor and between the storage containers and dispensing equipment.
2309.8 Defueling procedure.
The defueling, purging or other discharge of gaseous hydrogen from hydrogen motor fuel supply systems, including tanks and piping, shall be conducted in accordance with FC Chapters 53 and 58 and NFPA 2. Documentation setting forth the procedure for discharging the storage container shall be submitted to the department for review in connection with the approval of the hydrogen motor fuel storage and dispensing system installation. The written procedure shall address the actions the operator shall take in the event of a low-pressure or high-pressure hydrogen release during gaseous hydrogen discharge.
Exception: Discharges limited to the fuel supply piping from the fuel storage tank to the engine compartment on a motor vehicle or powered industrial truck.
Loading...