Using cable to detect overcurrents for motor vehicle on-board electrical system involves driving protection device with current in detection line resulting from local contact between load and detection lines to reduce load line current

摘要

The method involves arranging the detection line (18) at least partly along a load line (6) that can be connected to a current source (8) and a protection device (12) in the connection between the source and the load line. The protection device is driven by detection current flowing in the detection line resulting from a local contact between the load line and the detection line to reduce the current in the load line, whereby the cable is used for electrical voltages below a spark threshold voltage.