Transport of hazardous goods

Fire protection systems when transporting hazardous goods

A lot of hazardous goods are being transported on ordinary roads. Some of these materials, which may not usually be considered hazardous, can be flammable fibrous materials such as round timber, shavings, chips, and peat in bulk form.

Vehicles and trucks for transporting these materials are sometimes requested by the insurance industry to be protected with fire suppression systems. The fire suppression system normally protects the engine compartment and heater, but in some cases, also the power transmission and hydraulic equipment.

Dafo Vehicle Fire Suppression System

For timber trucks, Dafo Vehicle has developed a unique concept. The TruckLine "all in one" compact system fire protection concept fills a need in the market with its fast installation and service time making it cost-effective and ensuring minimal downtime.

The fire suppression system is activated electrically via the fire alarm. Still, it can also be activated via the alarm panel located in the operator cabin or via an external activation point. There is a Dual Display option for timber trucks with cranes to ensure manual release from both cabin and crane in accordance with the new SBF regulations.

How the system works

The Dafo fire suppression system consists of four integrated elements; Detection, Alarm, Suppression and Control, which work together in a coordinated, fast and efficient way to suppress fires. The detection system consists of a linear heat detector wire. It has a fixed temperature sensor with an alarm signal triggered when the activation temperature of 180°C is reached. This signal punctures the burst disc of the propellant gas cartridge, which releases nitrogen into the agent container.

The Forrex liquid is distributed to the nozzles through the pipe system. At the same time, the alarm system is activated, and an alarm horn in the vehicle and a light signal in the panel will warn the driver. The liquid agent will push away the oxygen, cool down the overheated engine parts, impregnate the burning material, stick to surfaces and effectively prevent re-ignition. The Forrex is non-corrosive and environmentally friendly.

The control unit has a Real-time Clock and Event Log that allows access to historical data, making it possible to analyze previous events.