flashover


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Related to flashover: flashover voltage

flashover

[′flash‚ō·vər]
(electricity)
An electric discharge around or over the surface of an insulator.
(engineering)
A condition occurring during a fire in a building in which the surfaces of everything within a compartment or room seem to burst into flame simultaneously.

flashover

A fault in a reciprocating engine's ignition system. The high voltage in the magneto distributor jumps to the wrong terminal, resulting in the wrong spark plug firing with a consequent loss in power. Flashover can happen because of moisture in the distributor. It can also occur when an aircraft is flying at high altitudes and the air inside the distributor does not have sufficient density to be an effective dielectric.
References in periodicals archive ?
Then the flashover occurs, and combustibles in the cabin such as carpet and seat backs will ignite.
Florian's Brewery currently distributes California Common & Flashover IPA in 6-packs, 22-ounce bottles, 1/6 barrel kegs & 1/2 barrel kegs.
Moist dirt, dust or salt deposits can impair the insulating capacity of such materials, due to electrical discharges or even so-called pollution flashovers.
2005; Chow and Hung 2006), a scenario with a flashover room fire occurred adjacent to the DSF is hazardous.
An LPS is a bonding, grounding, and shielding configuration made of four distinct parts: air terminals, down conductors, a low-impedance ground system, and flashover protection.
The surplus gas then appears to have caused a minor flashover.
When it comes to flame and smoke, CPVC pipe and fittings compare favorably to other nonmetallic piping options: They aren't combustible and won't contribute to flashover.
The doctors say that the skin's naturally high electrical resistance usually dissipates lightning across the body's surface, an effect known as flashover.
Codified by the Consumer Products Safety Commission as CFR Part 1633, the new standards require that mattresses be made so that a fire can't reach the level of heat release that causes flashover, a state in which the fire can spread throughout the bedroom and even the house.
Because of the ordinarily high resistance of skin, lightning is often conducted over the outside of the body during a side flash (an effect known as a flashover); however, sweat and metallic objects in contact with the skin can disrupt the flashover, leading to the internal flow of current.