Recommended Practice for General Fuel Cell Vehicle Safety
- Ground Vehicle Standard
Sections 220.127.116.11 and 5.2 and Appendices C and D were updated to clarify and streamline verification test requirements for hydrogen discharges from the vehicle. See Appendices C and D for detailed discussion of issues and recommended verification procedures.
Sections 18.104.22.168 and 4.2.5 and Appendix E were changed to clarify guidance with regard to locating hydrogen storage systems within passenger, luggage, and cargo compartments to ensure that discharges from vents and Pressure Relief Devices (PRDs) are properly managed and directed.
Section 4.2.6 was modified and the new Appendix F was added to ensure that either the vehicle cannot be moved while the fueling nozzle is connected or the fueling receptacle is properly installed, protected, and secured.
Sections 4.2.6, 4.7, and 5.1 were updated to clarify fuel system labeling requirements and harmonize with vehicle badging requirements in SAE J2990 for emergency responders.
Sections 4.2.7, 4.4.3, 22.214.171.124, 6, and 7.2 were re-worded to clarify previously-defined issues and guidance.
Section 4.4.3 and subordinate subsections were revised to account for Y-capacitors in high voltage circuits and their effect on body current if the high DC and AC voltage circuits are touched.
Section 5.2.2 and Appendix C was changed to extend allowable discharge scaling to smaller (micro) vehicles and not just larger vehicles such as buses. Clarifications to the analytical bases of requirements were also made.
Appendix A was modified to correct post-crash formulas, improve the explanations, and provide an alternative approach for calculating the mass leakage rate.
Appendix E was also modified to clarify guidance with regard to using Pressure Relief Devices (PRDs) in series.
|Ground Vehicle Standard||Standard for Fuel Systems in Fuel Cell and Other Hydrogen Vehicles|
|Ground Vehicle Standard||Guidelines for Electric Vehicle Safety|
|Ground Vehicle Standard||Compressed Hydrogen Surface Vehicle Fueling Connection Devices|
Data Sets - Support Documents
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|TABLE 1||SUMMARY OF ISOLATION REQUIREMENTS FOR IN-USE OF VARIOUS TYPES OF HIGH VOLTAGE SYSTEMS|
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The Fuel Cell Standards Committee is responsible for establishing standards for hydrogen and fuel cell vehicles. Standards will cover the safety aspects of hydrogen, fuel cell, and electrical systems in the vehicle, test procedures to establish the performance of the vehicle, system/components, and interface requirements.