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.

Aviation dictionary. 2014.

Look at other dictionaries:

  • flashover — [flash′ō΄vər] n. an undesired electrical discharge across an insulator, between a high potential and the ground, etc …   English World dictionary

  • Flashover — For the 2007 documentary see Flashover (film).: In electric power transmission, a flashover is an unintended high voltage electric discharge over or around an insulator, or arcing or sparking between two or more adjacent conductors. A flashover… …   Wikipedia

  • Flashover — Der Flashover (dt. Durchzündung; auch Flash Over, Flash over, F/O) ist eine Phase innerhalb eines Brandereignisses und bezeichnet den schlagartigen Übergang eines Schadenfeuers (z. B. Zimmerbrand) von der Entstehungsphase hin zur… …   Deutsch Wikipedia

  • Flashover — Embrasement généralisé éclair Pour les articles homonymes, voir EGE. L embrasement généralisé éclair (EGE, en anglais flashover) est un phénomène thermique, une phase du développement d un feu dans un local semi ouvert. En effet, un tel local… …   Wikipédia en Français

  • flashover — /flash oh veuhr/, n. 1. Elect. a disruptive discharge around or over the surface of a solid or liquid insulator. 2. the moment of conflagration or complete incineration caused by superheated air or combustibles. v.i. 3. Elect. to have or… …   Universalium

  • flashover — /ˈflæʃoʊvə/ (say flashohvuh) noun 1. a disruptive electrical discharge around or over the surface of a solid or liquid insulator. 2. the point at which a fire in a building reaches sufficient heat so that volatile gases given off by linings,… …   Australian English dictionary

  • flashover — noun Date: 1892 1. an abnormal electrical discharge (as through the air to the ground from a high potential source or between two conducting portions of a structure) 2. the sudden spread of flame over an area when it becomes heated to the flash… …   New Collegiate Dictionary

  • flashover — noun a) The near simultaneous ignition of all combustible material in an enclosed area. b) An unintended electric discharge or arc over or around an insulator …   Wiktionary

  • flashover — n. unintentional electric discharge over the surface of an insulator …   English contemporary dictionary

  • flashover — noun 1》 a high voltage electric short circuit made through the air between exposed conductors. 2》 an instance of a fire spreading very rapidly through the air because of intense heat …   English new terms dictionary

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