Road machinery

What the ASPTC consists of and how it works

The system is designed for:

• automatic monitoring of temperature values in the protected compartments of the vehicle
• continuous 24/7 operation as part of the controlled object
• providing information on exceeding the specified temperature threshold in the protected compartments of the vehicle
• sending an electrical pulse to start the fire extinguishing means
• sending a signal to the executive devices
• automatic determination of the position of the object relative to the vertical
• sending a signal to the executive devices when the specified angle of deviation from the vertical is exceeded

In any mode of operation of the system, immediately after detecting a fire, the vehicle engine is automatically turned off.

This is necessary for the following reasons:

• starting the fire extinguishing means with the engine running can lead to its failure, as the fire extinguishing agent can enter the engine intake tract;
• along with the engine, the cooling system fan is turned off, which hinders extinguishing by creating an influx of oxygen from the outside and simultaneously blowing out the fire extinguishing agent;
• along with the engine, the hydraulic pump is turned off, which leads to a drop in hydraulic oil pressure in the system, and as is known, one of the causes of a fire is the ignition of oil in case of a hydraulic hose rupture.
• simultaneously with the engine shutdown, the system provides visual, audible, and textual indication of a fire with the name of the compartment where the ignition was detected. In case the operator visually detects the fire faster than the signal from the thermal sensor, there is an opportunity to initiate the fire extinguishing process manually using the "Start" toggle switch on the front panel of the device or a manual sensor located on the equipment.

Any event - fire, start of fire extinguishing means, activation of the manual "Start" toggle switch, malfunction, switching on/off of the power supply, switching between automatic and manual modes - is recorded in the system archive with the event linked to the date and time. Thus, in case of an investigation of incidents, it is possible to establish the sequence of events and actions of the operator.

Advantages of the automatic fire extinguishing system

The automatic system operates around the clock - even when there is no operator in the vehicle and the engine is turned off. The only condition for the operation of the ASP is the presence of voltage in the onboard electrical circuit.

When installing such a system, the location of fire sensors and fire extinguishers is chosen so that they monitor all the most fire-prone compartments; in case of a fire, it will be immediately detected, and its extinguishing will begin faster and be more effective than with manual extinguishing. After all, as is known, it is easier to extinguish a fire at the beginning than when it has already developed. For greater reliability, the automatic system is equipped with a button or toggle switch for manual activation of fire extinguishers in case the operator detects the fire first, not the system.

Since automatic systems must necessarily check the state and integrity of their elements by periodically polling the electrical circuits of sensors and fire extinguishers and in case of their malfunction, inform the operator, you will always know the state of these circuits and the ASPTC.
The presence of a fire extinguishing system on the vehicle may affect the cost of insurance.

Application

• dump trucks
• excavators
• bulldozers
• loaders
• tractors
• mobile cranes
• motor graders
• drilling machines
• combines
• mobile crushers
• pipe layers
• rollers
• asphalt pavers
• mills
• compactors
• generators