Risk Management For Gas Vehicles - Scania L Series Product Information

Gas vehicles

Risk management for gas vehicles

The area must always be evacuated in the event of fire, leakage, or a vehicle
with a damaged gas tank.
Due to a risk of explosion and suffocation, gas vehicles must be declared to be
free of gas before they are taken indoors. If a gas leakage occurs, the gas will
be confined, contributing to an unsafe environment.
Explosion
CNG
The risk of explosion is very small. Temperature fuses are automatically
triggered at 110°C in order to prevent explosion. If the vehicle is equipped with
a pressure fuse, this triggers at 340 bar. Explosive pressure is 450 bar for steel
tanks and 470 bar for composite tanks.
LNG
The risk of explosion is very small. Pressure valves are triggered at 16 bar and
24 bar.
Damaged gas tank
Always evacuate the area around a vehicle with a damaged gas tank.
Vehicle gas expands with the temperature and it is therefore important to lower
the pressure in a damaged gas tank. A damaged gas tank can withstand
pressure temporarily, but if the pressure is raised, e.g. by heat from the sun, the
gas tank may break. Therefore, try to reduce the pressure in a damaged gas
tank in a safe way by shooting holes in the tank from a safe distance.
WARNING!
The pressure displayed on a manometer is the pressure in the pipe system.
The gas tanks have solenoid valves, which are closed when power is cut.
Therefore, always treat the tank as if it is filled with gas, even if the
pressure gauge shows 0 bar.
00:01-08 Issue: 8 en-GB
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