Electrolyzers/Fuel Cells

This publication provides information on the physical and chemical properties of hydrogen and proper handling and use. It is intended to provide background information for personnel involved in the manufacture, distribution, and use of hydrogen. Additional technical information can be obtained from hydrogen gas manufacturers.

This publication presents design guidelines for hydrogen vent systems used in gaseous and liquid hydrogen systems at user sites and provides recommendations for safe operation of these vents. It begins at the discharge port of safety devices and other components that control the release of hydrogen and ends at the point where hydrogen concentration in the atmosphere is below the lower flammable limits.

This standard describes the specifications and general principles recommended for piping systems for gaseous (Type I) or liquid (Type II) hydrogen. The standard addresses both low and high pressure hydrogen piping systems onsite from the point where hydrogen enters the distribution piping (the battery limits of the hydrogen storage system) to the point of use. For the purposes of this standard, high pressure is defined as gaseous hydrogen at service pressures equal to or greater than 3000 psig (20 680 kPa).

The standard provides fire prevention and protection requirements for safeguarding life and physical property for buildings or facilities that employ stationary fuel cell systems of all sizes. Criteria cover design, construction and installation requirements, including general equipment configuration, siting and interconnections, fuel supplies and storage arrangements, ventilation, exhaust and fire protection. Specific provisions for fuel cell power systems 50 kW or less are also included.

A resource for facts on safe response to electric and hybrid vehicle incidents involving damaged high voltage batteries, battery fires, extrication challenges, submersion, and charging stations. This document covers the vital aspects of EV/hybrid hazard awareness and procedures, including information from related NFPA codes and new consistent Moditech Rescue Solutions® vehicle diagrams.

This code provides fundamental safeguards for the generation, installation, storage, piping, use, and handling of hydrogen in compressed gas (GH2) form or cryogenic liquid (LH2) form. Provisions apply to the production, storage, transfer, and use of hydrogen in all occupancies and on all premises.

NFPA 55 facilitates protection from physiological, over-pressurization, explosive, and flammability hazards associated with compressed gases and cryogenic fluids. Criteria provide fundamental safeguards for the installation, storage, use, and handling of compressed gases and cryogenic fluids in portable and stationary cylinders, containers, and tanks in all occupancy types.

This document describes the techniques to be applied for the detection of a leak, using a tracer gas and a tracer gas specific leak detector.