Michigan Administrative Code
Department - Licensing and Regulatory Affairs
Bureau of Fire Services
Storage and Handling of Gaseous and Liquefied Hydrogen Systems
Part 2 - STORAGE AND HANDLING OF GASEOUS HYDROGEN NFPA 50A
Chapter 5 - Operation and Maintenance
Section R. 29.7048 - Maintenance

Universal Citation: MI Admin Code R. 29.7048
Current through Vol. 24-16, September 15, 2024

Rule 48. Section 5-2is reproduced from NFPA 50A, and sections 5-2.1 to 5-2.11 of the storage and handling of gaseous and Liquefied H2 code are added as follows:

5-2 Maintenance. Each hydrogen system installed on consumer premises shall be inspected annually and maintained by a qualified representative of the equipment owner.

5-2.1 Hoses, nozzles and breakaways shall be examined visually to ensure that they are safe for use and shall be maintained in accordance with manufacturer's instructions on at least a quarterly basis or earlier if required by the manufacturer.

5-2.2 Hose shall be tested for leaks per manufacturer's requirements and any leakage shall be a reason for rejection and replacement.

5-2.3 Testing shall be carried out with helium or with helium/ H2 blend as the test gas or if this is not possible, with H2 using suitable precautions.

5-2.4 The facility operator shall maintain a maintenance log in good condition and accessible to department inspection. Records shall be maintained for a minimum of 2 years.

5-2.5 Controllers on fuel stations shall be designed to verify the integrity of the fuel hose, breakaway, nozzle, and receptacle by pressurizing these components to at least the vehicle backpressure and checking pressure drop prior to the start of fueling.

5-2.6 Containers and their appurtenances, piping systems, compression equipment, controls, and detection devices shall be maintained in operating condition and according to manufacturer's instructions.

5-2.7 Pressure relief valves shall be maintained in operating condition.

5-2.8 Maintenance personnel shall be trained in leak detection procedures.

5-2.9 Area within 10 feet (3.1 meters) of dispenser shall be free from debris, weeds and other material that present a fire hazard.

5-2.10 Safety, gas detection, and fire protection equipment shall be tested or inspected at intervals not to exceed 6 months.

5-2.11 Maintenance activities on fire control equipment shall be scheduled so that a minimum of equipment is taken out of service at any 1 time and fire prevention safety is not compromised.

Disclaimer: These regulations may not be the most recent version. Michigan may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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