arc
arcing
luminous discharge of electricity across an insulating medium, usually accompanied by the partial volatilization of the electrodes
Note 1 to entry: A complete sinusoidal current half-cycle is not considered to be an arcing half-cycle.
[SOURCE: IEC 62606:2013, 3.1]
and searching for "spark" includes the following:
(electric) spark
small luminous electric arc of short duration
arc
arcing
luminous discharge of electricity across an insulating medium, usually accompanied by the partial volatilization of the electrodes
Note 1 to entry: A complete sinusoidal current half-cycle is not considered to be an arcing half-cycle.
[SOURCE: IEC 62606:2013, 3.1]
and searching for "spark" includes the following:
(electric) spark
small luminous electric arc of short duration
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