FAIL-SAFE POWER CUT-OUT DEVICE

摘要

A circuit is disclosed in which one or more power line fuses are automatically blown in the event of an open circuit or other interruption in the power circuit so as to prevent electric shock to anyone coming in contact with the damaged equipment. The circuit employs a current valve such as a silicon controlled rectifier (SCR) normally held in a cut-off mode. The valve is rapidly actuated in the event of equipment damage to effectively short circuit the line and blow the fuses.