Electrical breakdown of a gas that results in an ongoing electrical discharge
For electricity following an unintended path, see short circuit.
An electric arc between two nails
An electric arc (or arc discharge) is an electrical breakdown of a gas that produces a prolonged electrical discharge. The current through a normally nonconductive medium such as air produces a plasma, which may produce visible light. An arc discharge is initiated either by thermionic emission or by field emission.[1] After initiation, the arc relies on thermionic emission of electrons from the electrodes supporting the arc.
An arc discharge is characterized by a lower voltage than a glow discharge. An archaic term is voltaic arc, as used in the phrase "voltaic arc lamp".
Techniques for arc suppression can be used to reduce the duration or likelihood of arc formation.
In the late 19th century, electric arc lighting was in wide use for public lighting.
Some low-pressure electric arcs are used in many applications. For example, fluorescent tubes, mercury, sodium, and metal-halide lamps are used for lighting; xenon arc lamps have been used for movie projectors. Electric arcs can be utilized for manufacturing processes, such as electric arc welding, and electric arc furnaces for steel recycling.
^"The Arc Species "Zoo"". Arc Suppression Technologies. 15 December 2020. Retrieved March 28, 2023.
An electricarc (or arc discharge) is an electrical breakdown of a gas that produces a prolonged electrical discharge. The current through a normally nonconductive...
An arc lamp or arc light is a lamp that produces light by an electricarc (also called a voltaic arc). The carbon arc light, which consists of an arc between...
supply to create an electricarc between a metal stick ("electrode") and the base material to melt the metals at the point of contact. Arc welding power supplies...
electric current, gas-discharge lamps, which produce light by means of an electricarc through a gas, such as fluorescent lamps, and LED lamps, which produce...
phenomenon of the arc blast is sometimes used to extinguish the electricarc by some types of self-blast–chamber circuit breakers. An arc flash is the light...
Alternatively, a lighter can be one which uses electricity to create an electricarc utilizing the created plasma as the source of ignition or a heating element...
weld. An electric current, in the form of either alternating current or direct current from a welding power supply, is used to form an electricarc between...
arc welding (GMAW), sometimes referred to by its subtypes metal inert gas (MIG) and metal active gas (MAG) is a welding process in which an electric arc...
discovery of the short pulsed electricarc in 1801 by Humphry Davy and of the continuous electricarc in 1802 by Vasily Petrov, arc welding developed slowly...
sources can be used for welding, including a gas flame (chemical), an electricarc (electrical), a laser, an electron beam, friction, and ultrasound. While...
event (as in an electrostatic discharge), or may lead to a continuous electricarc if protective devices fail to interrupt the current in a power circuit...
Look up arc, arc-, or arcs in Wiktionary, the free dictionary. Arc may refer to: Arc (geometry), a segment of a differentiable curve Circular arc, a segment...
electrical apparatus. In electric discharge machining, multiple tiny electricarcs erode a conductive workpiece to a finished shape. Arc welding is used to...
Exposition of 1878, electricarc lighting had been installed along the Avenue de l'Opera and the Place de l'Opera, using electric Yablochkov arc lamps, powered...
Crystalloluminescence is light produced during crystallization. Arc lamp – Lamp that produces light by an electricarc Flashtube – Incoherent light source Lightning –...
The Ames Research Center (ARC), also known as NASA Ames, is a major NASA research center at Moffett Federal Airfield in California's Silicon Valley. It...
(thermionic emission) or in an electric field that is sufficient to cause field electron emission. Once initiated, a vacuum arc can persist, since the freed...
Plasma arc welding (PAW) is an arc welding process similar to gas tungsten arc welding (GTAW). The electricarc is formed between an electrode (which is...
arclight or arc lamp is a lamp that produces a bright light by generating an electricarc across two electrodes. Arclight, Arc Light or arc light may also...
spark transmitter used in early wireless telegraphy. The arc converter used an electricarc to convert direct current electricity into radio frequency...
purpose of arc welding is to form a bond between separate metal pieces. In carbon-arc welding a carbon electrode is used to produce an electricarc between...
(e.g. intense direct or reflected sunlight) or artificial (e.g. the electricarc during welding) sources. Photokeratitis is akin to a sunburn of the cornea...
from the blast furnace and scrap steel as the main feed materials, and electricarc furnace (EAF) steelmaking, which uses scrap steel or direct reduced iron...
example, in the 1870s Siemens used electromagnetic dynamos to power electricarc furnaces for the production of metals and other materials. The dynamo...
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