MECHANICAL AND ELECTRICAL FIRE CAUSE AND ORIGIN ANALYSIS



Fire origin analysis utilizes burn patterns to determine an origin of the fire. Once the origin is found, causation analysis (similar to failure analysis) seeks to find the deficiency that started the fire.



ORIGIN DIAGRAM

Burn patterns usually show hot spots

which are often the origin. Some hot spots

may not be the fire origin.

FAILED NATURAL GAS REGULATOR

Gas regulator involved in a fire where

natural gas leaked from a crack

in a supply pipe caused by frost heaves

coupled with corrosion.


COMPUTERIZED FIRE ANALYSIS

Computerized fire model

using basic dimensional data of

the building plus heat flux

data on burning materials.


CAR FIRE

Auto fire testing entails initiating a

fire in the vehicle, recording the

fire development on video tape and

measuring temperatures.

INFRARED ANALYSIS

Infrared thermogram of the burning

automobile above, shows the fire

development in vehicle. Light areas

are hot, dark areas are cold.





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