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Ignition
Identification of ignition sources is often the key to understanding the cause of a fire or how such fires may be prevented in the future. When burn damage is extensive, evidence of initiating ignition sources can be consumed, making ignition source identification difficult. Even in such circumstances, it may be possible to eliminate some potential causes.
This section will cover ways of identifying ignition sources in the vehicle environment, and differentiating which are applicable to a given case.
Each ignition source has characteristics by which it can be ruled in or ruled
out of consideration for a specific vehicle fire. While the number of ignition
source types is small, each is multifaceted, with a
potential for fire origination at many locations. Each may leave little or no evidence
for the investigator. Using scientific methods the investigator may examine each
source and evaluate the probability of involvement, but often cannot
definitively identify a single source.
Types of ignition sources in motor vehicles to be covered:
- Arcing
- Resistance Heating
- Static
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