Abstract: An emergency supply system for a transportation means is provided. The system includes at least one fuel cell, a hydrogen tank, an oxygen tank, an extinguishing agent container, an oxidant supply unit and an extinguishing-agent supply unit. The oxidant supply unit includes an oxygen inlet connectable to the oxygen tank, an air inlet connectable to an air source, and an oxidant outlet connected to an oxidant inlet of the fuel cell. The oxidant supply unit either conveys oxygen from the oxygen inlet or air from the air inlet to the oxidant outlet. The extinguishing-agent supply unit includes a first extinguishing agent inlet connected to an exhaust air outlet of the fuel cell, a second extinguishing agent inlet connected to the extinguishing agent container, and an extinguishing agent outlet that is connectable to an extinguishing-agent inlet unit of at least one space of the transportation means.

Abstract: The invention provides a fire protection system, in particular in the field of aviation and aerospace, comprising a compartment which is at least partly lined with fire-retardant material, a detection means which can detect a fire in the compartment, and a fire suppression means which is configured to introduce an inert gas into the compartment when the detection means detects a fire in the compartment, to thus reduce the oxygen content in the compartment and to thereby suppress the fire.