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Static Electrical Discharge
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Static Electrical Discharge
A buildup of static electricity results from the transfer of electrons between bodies, causing one body to have an electrical potential when compared with the other. Static electricity can be created from the movement of vehicles on the road, the movement of clothing layers against each other or against upholstery, the movement of fluids (including gasoline) in a pipe or hose, or it can be acquired from lightning. If the electrical charge difference is neutralized by a sudden discharge of electrical energy in the form of an arc in the presence of an ignitable atmosphere, there is the potential for fire. Such forms of electrical ignition in automotive fires are rare, but should always be considered during investigations if the circumstances are appropriate.
Static electricity has been the cause of fires during refueling of vehicles, though it is very rare. The Petroluem Equipment Institute has published the results of their investigations of this matter, as well as guidelines for prevention [1]. Also the PEI dispels the myth that cell phones cause fires while refueling. It was dismissed as an email hoax.
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