Patent ID: 7489140

Claim:
A spark tester apparatus for testing the integrity of insulation surrounding a grounded conductor of a test cable, comprising: a conductive housing comprising an entry side aperture and an opposing exit side aperture, the conductive housing configured such that the test cable enters the conductive housing via the entry side aperture and exits the conductive housing via the exit side aperture; a rotatable adjustment ring secured within a perimeter of the entry side aperture or the exit side aperture such that the rotatable adjustment ring may rotate within the entry side aperture or the exit side aperture with respect to the conductive housing; at least one elastic electrode connected at a first end to the rotatable adjustment ring and at a second end to the conductive housing adjacent to the opposing entry side aperture or exit side aperture; and an electrical contact for receiving a voltage and distributing the voltage across the conductive housing and the at least one elastic electrode.