Patent ID: 8264369

Claim:
A downhole tool assembly, comprising; a tubular body having a first end and a second end; a first electrical connector disposed in the first end of said tubular body; a second electrical connector disposed in the second end of said tubular body; an electrical tool instrument disposed between the connectors; a first switch disposed between said first electrical connector and said second electrical connector, said first switch configured to selectively allow a current to flow there through; a second switch disposed between said first electrical connector and said second electrical connector, said second switch configured to selectively allow a current to flow there through; a first sensor adapted to sense a current in said first electrical connector; a second sensor adapted to sense a current in said second electrical connector; and a microprocessor connected to said first sensor and said second sensor, said microprocessor adapted to cause said first switch to open in response to a current being sensed by both first sensor and said second sensor, and to be closed in response to a current being sensed by only a single one of said first sensor and said second sensor.