The installation location of fire detectors involves idetifying fire risks for different areas of vehicle and the classification
of vehicles. In this standard, 13 different areas or equipment are identified to be protected by fire detectors, and for different
design cetegory and operation category of vehicles, part or all of the 13 areas shall be installed with fire detectors.
In general, for areas of combustion engine, electric traction equipment, engine compartment and luggage compartment,
fire detectors shall be installed, no matter what design category or operation category the vehicle is. All areas on sleeping
and couchette vehicles shall be installed with fire detectors. For all operation category 4 vehicles, all areas shall be installed
with fire detectors, except the technical compartment in double decked vehicles and other standard vehicles