Electric arc furnace
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An electric arc furnace is a furnace that heats material by means of an electric arc.
An electric arc furnace during operation, c. 1975
Rendering of exterior and interior of an electric arc furnace.
Stassano furnace exhibited at the Museo della Scienza e della Tecnologia "Leonardo da Vinci", Milan
A general overview of a typical AC (Alternating Current) electric arc furnace with three electrodes. All relevant hardware (except the transformer vault to left) are visible, such as water-cooled power cables, painted copper electrode arms, swing roof, refaractory-lined cylindrical melting hearth, tap spout, tilting mechanism, and exhaust ducting.
Electric arc
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An electric arc 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
Electric arc furnace
…An electric arc furnace (EAF) is a furnace that heats material by means of an electric arc. Industrial arc furnaces range in size from small units of approximately one-tonne capacity (used in foundries for producing cast iron products) up to…
An electric arc between two nails
Natural lightning is an electric spark because it is a brief pulse, not an arc (which is continuous)
Electricity arcs between the power rail and electrical pickup "shoe" on a London Underground train
Electric arc between strands of wire.