electric arc


electric arc
arc (def. 2).
[1880-85]

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      continuous, high-density electric current between two separated conductors in a gas or vapour with a relatively low potential difference, or voltage, across the conductors. The high-intensity light and heat of arcs are utilized in welding, in carbon-arc lamps and arc furnaces that operate at ordinary air pressure, and in low-pressure sodium-arc and mercury-arc lamps.

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Universalium. 2010.

Look at other dictionaries:

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  • electric arc — noun electrical conduction through a gas in an applied electric field • Syn: ↑discharge, ↑spark, ↑arc, ↑electric discharge • Derivationally related forms: ↑spark (for: ↑spark) …   Useful english dictionary

  • electric arc — Смотри электрическая дуга …   Энциклопедический словарь по металлургии

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