Heat sink thermal transfer system for zinc oxide varistors
Heat transfer system for voltage surge arresters
Hermetically sealed gas tube surge arrester
High current draining capacity micro-lightning arrester
High voltage apparatus
High voltage arcing switch initiated by a disruption of the elec
High voltage insulator assemblage having specially-chosen series
High voltage lead-through
High voltage protection apparatus
High voltage protection circuit for telephone test set
High voltage protection device with a tape covered spark gap
High voltage surge arrester with failed surge arrester signaling
High voltage surge protection element for use with CATV...
High voltage surge protection element for use with CATV...
High voltage surge protection for electrical power line
High voltage transient voltage surge suppression fuse link...
High-voltage circuit breaker with arc gas-blast
High-voltage circuit breaker with interrupter unit
High-voltage power breaker having an outlet flow channel
High-voltage surge eliminator