.~ Plural load devices with selective substitution of load device or electrode
DEFINITION
Classification: 315/90
(under subclass 88) Systems provided with a plurality of first to be operated load devices or electrodes and a nonoperating load device or electrode, the nonoperating load device or electrode being connected in the system so that it may be automatically substituted for any one of the first operated load devices or electrodes which either fail or are subjected to excessive voltage or current conditions.