# 17-27-023

arc discharge, <in a gas or in a vapour>

electric arc, <in a gas or in a vapour>

electric discharge characterized by a cathode fall which is small compared to that in a glow discharge

Note 1 to entry: The emission of the cathode results from various causes (thermionic emission, field emission, etc.) acting simultaneously or separately; secondary emission plays only a small part.

Note 2 to entry: This entry was numbered 845-07-16 in IEC 60050-845:1987.

Note 3 to entry: This entry was numbered 17-54 in CIE S 017:2011.

Publication date: 2020-12