series cathode preheating, <of a discharge lamp>
type of preheating of the electrodes of a discharge lamp in which the preheating current flows through the electrodes in series
Note 1 to entry: This entry was numbered 845-07-71 in IEC 60050-845:1987.
Note 2 to entry: This entry was numbered 17-1165 in CIE S 017:2011.