Rigorous testing was accomplished off site in my yard.  You can see the robotic arm mounted on the corner of the 'kids' tree house.  The target for the PPAG is a piece of real high voltage cable suspended high above the ground.  My neighbors asked if I was joining 'the Circus'.  The purpose of this project was to automatically create a 'minimum safety air-gap' between a live high voltage line and the grounded tip of the robot arm.  Should the line voltage exceed a designated value, a spark will 'shoot' this gap, thereby saving the life of any lineman working in the area.

PPAG Demonstration at EPRI's 5th Annual Live-Line Maintenance Work Practices Conference

EPRI Lenox Office

115 E. New Lenox Road

Lenox, Massachusetts 01240

USA