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Extruded multi-layer flame retardant fire hoses

von Horst Hasenmaier, Werner Siewert, Prof. Dr.-Ing. Martin Bastian, Dr.-Ing. Peter Heidemeyer, Dr. Bernhard Ulmer, Manuela Gehringer

In 2005 two fire fighters were killed during a fire fighting operation in Tübingen in Southern Germany. They were an advance team, who had entered into a burning warehouse with breathing apparatus and a water hose to get to the source of the fire. A burst in the hose cut off their water supply. Flames blocked their way back [1]. Such tragic accidents occur again and again. Most high pressure fire hoses in use survive only a maximum time of 10 s before bursting, if the tube comes into contact with burning material or embers [2]. The goal of a research project funded by the Federal Economics and Technology Ministry (BMWi) as part of its “Central SME Innovation Programme” entitled “Extruded multi-layer flame retardant fire hoses” is to make the hoses more resistant.