What Causes a Car to Catch Fire?
1 Answers
When the engine is running, the high temperature of the ignition coil can soften, age, or crack the insulation layer of the high-voltage ignition wires. This makes it easier for the high-voltage electricity to penetrate the insulation, leading to electrical leakage. The continuous rise in temperature at the leakage point can ignite leaked gasoline from the engine or carburetor, ultimately causing a fire. Additional relevant information is as follows: 1. Grounding: Among fire accidents caused by common circuit faults, grounding is the most significant factor. Particularly, many new car owners, who cherish their newly purchased vehicles, may install alarms, upgrade high-end audio systems, or modify the vehicle's appearance. These actions can potentially lead to wire grounding, resulting in vehicle self-ignition. A common issue is the starter switch contacts sintering and causing welding, which prevents the starter solenoid from releasing. This can lead to prolonged starter operation (the safe starting time for a starter is 5 seconds), causing the starter to overheat and catch fire. 2. Note: Poor circuit connections or excessive local resistance can generate heat, causing the connection points to overheat and ignite flammable materials. When the vehicle is in motion or starting, backfire phenomena may sometimes occur, which can also lead to fires. If the vehicle's engine lubrication system lacks oil, the surfaces of mechanical parts may come into contact and move relative to each other, generating high temperatures through friction. If these parts come into contact with flammable materials, a fire may occur. Most modern cars are equipped with a three-way catalytic converter, which is located on the exhaust pipe and can reach very high temperatures. If the vehicle is parked improperly, such as near flammable materials, a fire may occur.
