Division 4.3.11 Protection against fire and toxic fumes

The trainsets shall be able to continue to operate for 15 minutes at a speed of at least 80 km/h with a fire declared to be on board. A fire in an area that is open to natural ventilation must not allow transmission to other areas of the train within 15 minutes.

Passengers and train crew shall be protected against fire hazards. A fire resistance of at least 15 minutes shall be provided between:

• high power electrical equipment and passengers and staff areas,

• two vehicles of the trainset

For thermal engines, the fire barriers between the driver's cab, passenger and staff areas, thermal engines and fuel tanks, shall have a fire resistance of at least 30 minutes.

The high voltage electrical equipment compartments and those parts of the train not directly visible to the train crew or passengers which are likely to be the source of a fire shall be equipped with a system of fire detection, parts of the train to be so equipped shall be defined as the result of a global assessment of fire risks.

In order to prevent fire, materials with low flammability must be used and electrical installations must meet appropriate European specifications.

In case of fire in closed areas in the train, material on board shall not produce fumes that could jeopardise passenger and crew who are evacuating.

In order to enable train crew and passengers to fight a fire, adequate and sufficient fire extinguishers must be provided on board.

External signs shall indicate the location of emergency exits and the position of the devices to unlock the doors